MEIP / MEI Pharma, Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

MEI Pharma, Inc.
US ˙ NasdaqCM ˙ US55279B3015

Mga Batayang Estadistika
LEI 529900A43X33ON524197
CIK 1262104
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to MEI Pharma, Inc.
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
September 5, 2025 424B3

MEI PHARMA, INC. 32,309,944 Shares of Common Stock Offered by the selling stockholders

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(3) Registration No. 333-289312 PROSPECTUS   MEI PHARMA, INC. 32,309,944 Shares of Common Stock Offered by the selling stockholders This prospectus filed by MEI Pharma, Inc. (the “Company”) relates to the resale, from time to time by the selling stockholders named in this prospectus, or the selling stockholders, of up to (i) 25,301,407 shares (the “PI

September 4, 2025 EX-10.1

MASTER LOAN AGREEMENT

Exhibit 10.1 MASTER LOAN AGREEMENT This Master Loan Agreement (the “Agreement”) is dated as of 3rd of September, 2025 by and between BitGo Prime, LLC (“BitGo,” “BitGo Prime,” or “Lender”), a limited liability company organized and existing under the laws of Delaware, and MEI Pharma, Inc. (“Borrower”), a corporation organized and existing under the laws of Delaware (each, a “Party” and together, th

September 4, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 3, 2025 MEI Pharma, Inc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 3, 2025 MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 001-41827 51-0407811 (State or other jurisdiction of incorporation) (Commission File

August 26, 2025 S-3/A

As filed with the Securities and Exchange Commission on August 26, 2025

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 26, 2025 Registration Statement No.

August 6, 2025 EX-FILING FEES

Calculation of Filing Fee Tables MEI Pharma, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Tables MEI Pharma, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1)(2) Proposed Maximum Offering Price Per Unit (3) Maximum Aggregate Offering Price(3) Fee Rate Amount of Registration Fee Newly Registered Securities Fees to Be Paid Equi

August 6, 2025 8-K

FORM 8-K Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 05, 2025 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File N

August 6, 2025 S-3

As filed with the Securities and Exchange Commission on August 6, 2025

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 6, 2025 Registration Statement No.

August 5, 2025 8-K

FORM 8-K Item 7.01 Regulation FD Disclosure. Item 8.01 Other Events. Item 9.01 Financial Statements and Exhibits.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 05, 2025 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File N

August 5, 2025 EX-99.1

MEI Pharma Acquires Litecoin, Launches $100M Institutional Treasury Strategy with Charlie Lee and GSR Advising

MEI Pharma Acquires Litecoin, Launches $100M Institutional Treasury Strategy with Charlie Lee and GSR Advising SAN DIEGO, 5 August 2025 – MEI Pharma, Inc.

July 30, 2025 8-K

FORM 8-K Item 3.02 Unregistered Sales of Equity Securities.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 24, 2025 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File Num

July 23, 2025 424B5

Up to $100,000,000 of Common Stock

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(5) Registration No. 333-277201 PROSPECTUS SUPPLEMENT (To Prospectus dated February 28, 2024)   Up to $100,000,000 of Common Stock We have entered into an At the Market Offering Agreement, or Sales Agreement, with Titan Partners Group LLC, a division of American Capital Partners, LLC, or Titan, dated July 22, 2025, relating to shares of our common sto

July 22, 2025 EX-99.1

MEI Pharma Announces $100,000,000 Private Placement to Initiate Litecoin Treasury Strategy, Becoming First and Only Publicly Traded LTC Holder on a National Exchange

Exhibit 99.1 MEI Pharma Announces $100,000,000 Private Placement to Initiate Litecoin Treasury Strategy, Becoming First and Only Publicly Traded LTC Holder on a National Exchange • Charlie Lee, the Founder of Litecoin and a lead investor in the PIPE, will join the Board of Directors of the Company effective upon the closing of the Private Placement • GSR, a preeminent digital asset market maker an

July 22, 2025 EX-4.2

PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT MEI PHARMA, INC.

Exhibit 4.2 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR

July 22, 2025 EX-10.3

REGISTRATION RIGHTS AGREEMENT

Exhibit 10.3 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of July 17, 2025, is entered into by and among MEI Pharma, Inc., a corporation organized under the laws of the State of Delaware (the “Company”), and the several investors signatory hereto (individually as an “Investor” and collectively together with their respective permitted assigns, the “I

July 22, 2025 EX-10.1

SECURITIES PURCHASE AGREEMENT

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of July 17, 2025, between MEI Pharma, Inc., a corporation organized under the laws of State of Delaware (the “Company”), and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a “Purchaser” and collectively, the “Purchasers”). WHEREAS, subje

July 22, 2025 EX-1.1

MEI PHARMA, INC. Common Stock ($0.00000002 par value per share) AT THE MARKET OFFERING AGREEMENT

Exhibit 1.1 MEI PHARMA, INC. Common Stock ($0.00000002 par value per share) AT THE MARKET OFFERING AGREEMENT July 22, 2025 Titan Partners Group LLC, a division of American Capital Partners, LLC 4 World Trade Center, 29th Floor New York, NY 10007 Ladies and Gentlemen: MEI Pharma, Inc., a Delaware corporation (the “Company”), proposes, subject to the terms and conditions stated herein, to issue and

July 22, 2025 EX-10.7

STRATEGIC ADVISOR AGREEMENT

Exhibit 10.7 STRATEGIC ADVISOR AGREEMENT THIS STRATEGIC ADVISOR AGREEMENT (this “Agreement”) is made and entered into as of July 22, 2025 (the “Effective Date”) by and between MEI Pharma, Inc., a Delaware corporation (the “Company”), and Green Grass Ventures (the “Strategic Advisor”, and with the Company, the “Parties”). WHEREAS, the Company wishes to secure the commitment of Strategic Advisor to

July 22, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 17, 2025 MEI Pharma, Inc. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 17, 2025 MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 001-41827 51-0407811 (State or other jurisdiction of incorporation) (Commission File Num

July 22, 2025 EX-10.6

Advisory Agreement

Exhibit 10.6 Advisory Agreement This agreement (the "Agreement") is made effective as of July 22, 2025 by MEI Pharma, Inc., a Delaware corporation (the "Company"), and Green Dragon Investments LLC (the "Advisor”). WHEREAS, the Board of Directors of the Company (“Board”) desires to obtain the advice and counsel of the Advisor regarding but not limited to the Services described on Schedule 1; and WH

July 22, 2025 EX-4.4

COMMON STOCK PURCHASE WARRANT MEI PHARMA, INC.

Exhibit 4.4 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES. THE SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED UNLESS (I) SUCH SECURITIES HAVE BEEN REGISTERED FOR SALE PURSUANT TO THE SECURITIES ACT, (II) SUCH SECURITIE

July 22, 2025 EX-4.6

COMMON STOCK PURCHASE WARRANT MEI PHARMA, INC.

Exhibit 4.6 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES. THE SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED UNLESS (I) SUCH SECURITIES HAVE BEEN REGISTERED FOR SALE PURSUANT TO THE SECURITIES ACT, (II) SUCH SECURITIE

July 22, 2025 EX-10.2

PLACEMENT AGENCY AGREEMENT

Exhibit 10.2 PLACEMENT AGENCY AGREEMENT July 17, 2025 Titan Partners Group LLC, a division of American Capital Partners, LLC 4 World Trade Center, 29th Floor New York, NY 10007 Ladies and Gentlemen: Introductory. This Placement Agency Agreement the (“Agreement”) sets forth the terms upon which Titan Partners Group LLC, a division of American Capital Partners, LLC (“Titan Partners” or the “Placemen

July 22, 2025 EX-4.3

PRE-FUNDED COMMON STOCK PURCHASE WARRANT MEI PHARMA, INC.

Exhibit 4.3 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES. THE SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED UNLESS (I) SUCH SECURITIES HAVE BEEN REGISTERED FOR SALE PURSUANT TO THE SECURITIES ACT, (II) SUCH SECURITIE

July 22, 2025 EX-10.5

[Signature Page Follows]

Exhibit 10.5 July 22, 2025 GSR Strategies LLC c/o Corporation Service Company 251 Little Falls Drive, Wilmington, DE 19808 Email: [email protected]; [email protected] Attn: Legal & Compliance Re: Side Letter - Board Nominee Right Ladies and Gentlemen, This letter agreement will confirm our agreement that, in connection with and effective as of the purchase of 1,461,988 shares of Common Stock, $0.00000

July 22, 2025 EX-4.1

PRE-FUNDED COMMON STOCK PURCHASE WARRANT MEI PHARMA, INC.

Exhibit 4.1 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES. THE SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED UNLESS (I) SUCH SECURITIES HAVE BEEN REGISTERED FOR SALE PURSUANT TO THE SECURITIES ACT, (II) SUCH SECURITIE

July 22, 2025 EX-4.5

COMMON STOCK PURCHASE WARRANT MEI PHARMA, INC.

Exhibit 4.5 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES. THE SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED UNLESS (I) SUCH SECURITIES HAVE BEEN REGISTERED FOR SALE PURSUANT TO THE SECURITIES ACT, (II) SUCH SECURITIE

July 22, 2025 EX-10.4

ASSET MANAGEMENT AGREEMENT

Exhibit 10.4 ASSET MANAGEMENT AGREEMENT This ASSET MANAGEMENT AGREEMENT (this “Agreement”), effective July 22, 2025 (the “Effective Date”), is entered into by and between MEI Pharma, Inc. (the “Client”), and GSR Strategies LLC (the “Asset Manager”). WHEREAS, the Client wishes to appoint the Asset Manager to manage certain assets of the Client; and WHEREAS, the Asset Manager wishes to be appointed

May 13, 2025 8-K

FORM 8-K Item 2.02 Results of Operations and Financial Condition. Item 9.01 Financial Statements and Exhibits.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2025 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numb

May 13, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

Table of Contents ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-41827 MEI Pharma, Inc.

May 13, 2025 EX-99.1

MEI Pharma Reports Third Quarter Fiscal Year 2025 Cash Position Evaluation of Strategic Alternatives is Ongoing

MEI Pharma Reports Third Quarter Fiscal Year 2025 Cash Position Evaluation of Strategic Alternatives is Ongoing SAN DIEGO-(BUSINESS WIRE) — May 13, 2025 – MEI Pharma, Inc.

March 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 03, 2025 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File Nu

March 7, 2025 EX-10.1

Amended and Restated Employment Agreement between the Company and Justin J. File, dated March 3, 2025

Execution Copy Exhibit 10.1 11455 El Camino Real, Suite 250 San Diego, CA 92130 (858) 369-7100 March 3, 2025 Dear Justin, This Amended and Restated Employment Agreement (this “Agreement”), effective as of March 3, 2025 (the “Effective Date”), confirms the terms of your employment with MEI Pharma, Inc. (“MEI”). WHEREAS, you are currently employed by MEI pursuant to the terms of the letter agreement

February 12, 2025 EX-99.1

MEI Pharma Reports Second Quarter Fiscal Year 2025 Cash Position Evaluation of Strategic Alternatives is Ongoing

MEI Pharma Reports Second Quarter Fiscal Year 2025 Cash Position Evaluation of Strategic Alternatives is Ongoing SAN DIEGO-(BUSINESS WIRE) — February 12, 2025 – MEI Pharma, Inc.

February 12, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 12, 2025 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or other jurisdiction of incorporation) (Commission File

February 12, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

Table of Contents ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-41827 MEI Pharma, Inc.

January 31, 2025 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 30, 2025 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File

December 20, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

December 20, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

November 25, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 22, 2024 MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 001-41827 51-0407811 (State or other jurisdiction of incorporation) (Commission File

November 14, 2024 EX-99.1

MEI Pharma Reports First Quarter Fiscal Year 2025 Cash Position Reaffirms Continuation of Evaluation of Strategic Alternatives

MEI Pharma Reports First Quarter Fiscal Year 2025 Cash Position Reaffirms Continuation of Evaluation of Strategic Alternatives SAN DIEGO-(BUSINESS WIRE) — November 12, 2024 – MEI Pharma, Inc.

November 14, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 12, 2024 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or other jurisdiction of incorporation) (Commission File

November 12, 2024 EX-10.5

Consulting Services Agreement, dated as of August 2, 2024, by and between MEI Pharma, Inc. and David M. Urso

Exhibit 10.5 CONSULTING SERVICES AGREEMENT Amended September 13, 2024 THIS CONSULTING SERVICES AGREEMENT (this “Agreement”) is entered into as of August 2, 2024 by and between MEI Pharma, Inc. (the “Company”), and David Urso (“Consultant”). AGREEMENT WHEREAS, the Company wishes to obtain the services of Consultant, and Consultant wishes to provide such services, subject to the terms and condition

November 12, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

Table of Contents ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-41827 MEI Pharma, Inc.

November 12, 2024 EX-10.4

Consulting Services Agreement, dated as of August 2, 2024, by and between MEI Pharma, Inc. and Richard G. Ghalie

Exhibit 10.4 CONSULTING SERVICES AGREEMENT Amended September 13, 2024 THIS CONSULTING SERVICES AGREEMENT (this “Agreement”) is entered into as of August 2, 2024 by and between MEI Pharma, Inc. (the “Company”), and Dr. Richard Ghalie (“Consultant”). AGREEMENT WHEREAS, the Company wishes to obtain the services of Consultant, and Consultant wishes to provide such services, subject to the terms and co

November 12, 2024 EX-10.3

Separation and Release Agreement, dated as of August 4, 2024, by and between MEI Pharma, Inc. and David M. Urso

Exhibit 10.3 Separation and Release Agreement This Separation and Release Agreement (“Agreement”) is made between you, David Urso, and MEI Pharma, Inc., and sets forth the terms of your separation from employment with MEI Pharma, Inc. and its affiliates (“MEI”). This Agreement will become effective upon the “Effective Date” as specified in Section 10(i), below. Once effective, this Agreement will

November 12, 2024 EX-10.2

Separation and Release Agreement, dated as of August 3, 2024, by and between MEI Pharma, Inc. and Richard G. Ghalie

Exhibit 10.2 Separation and Release Agreement This Separation and Release Agreement (“Agreement”) is made between you, Dr. Richard Ghalie, and MEI Pharma, Inc., and sets forth the terms of your separation from employment with MEI Pharma, Inc. and its affiliates (“MEI”). This Agreement will become effective upon the “Effective Date” as specified in Section 10(i), below. Once effective, this Agreeme

October 25, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 22, 2024 MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 001-41827 51-0407811 (State or other jurisdiction of incorporation) (Commission File

October 25, 2024 EX-2.1

Asset Purchase Agreement, by and between MEI Pharma, Inc. and Aardvark Therapeutics, Inc., dated as of October 22, 2024.

Execution Version Exhibit 2.1 ASSET PURCHASE AGREEMENT between AARDVARK THERAPEUTICS, INC., as Purchaser and MEI PHARMA, INC., as Seller Dated as of October 22, 2024 Table of Contents Page No. Article I DEFINITIONS 1.1 Definitions 1 1.2 Interpretation 8 Article II PURCHASE & SALE OF PURCHASED ASSETS 9 2.1 Purchased Assets 9 2.2 Excluded Assets 10 2.3 Assumed Liabilities 11 2.4 Excluded Liabilities

September 19, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents - UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

September 19, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 19, 2024 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission Fil

September 19, 2024 EX-10.24

Addendum to Employment Agreement between MEI Pharma, Inc. and Justin J. File, dated August 1, 2024

Exhibit 10.24 Execution Copy Certain identified information has been excluded from the exhibit because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential. Mr. Justin "Jay" File c/o 11455 El Camino Real, Suite 250 San Diego, CA 92130 Dear Jay, This addendum (this “Addendum”) to your Employment Agreement with MEI Pharma. Inc., dated June 9, 2023 (t

September 19, 2024 EX-99.1

MEI Pharma Reports Fiscal Year End 2024 Cash Position Confirms Continuation of Evaluation of Strategic Alternatives

MEI Pharma Reports Fiscal Year End 2024 Cash Position Confirms Continuation of Evaluation of Strategic Alternatives SAN DIEGO-(BUSINESS WIRE) — September 19, 2024 – MEI Pharma, Inc.

September 19, 2024 EX-97

Compensation Recoupment Policy of MEI Pharma, Inc. Effective as of October 2, 2023 Article A. Purpose and General Terms

Exhibit 97 Compensation Recoupment Policy of MEI Pharma, Inc. Effective as of October 2, 2023 Article A. Purpose and General Terms Section A-1. Purpose. MEI Pharma, Inc. (the “Company”) has adopted this Compensation Recoupment Policy (this “Policy”) to: (a) implement a mandatory clawback policy in the event of a Restatement in compliance with the applicable rules of the Nasdaq exchange, which is s

August 2, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2024 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File Num

July 30, 2024 EX-99.1

Voruciclib: An Oral CDK9 Inhibitor for AML and Other Malignancies July 2024

Voruciclib: An Oral CDK9 Inhibitor for AML and Other Malignancies July 2024 Forward Looking Statements Certain information contained in this communication that are not historical in nature are "forward-looking statements" within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995 including, without limitation, statements regarding: the potential, saf

July 30, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2024 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File Num

July 22, 2024 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Costs Associated with Exit or Disposal Activities

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 21, 2024 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File Num

July 22, 2024 EX-99.1

MEI Pharma to Consider Strategic Alternatives Company Commences a Cash Preservation Plan Including a Reduction in Force

Exhibit 99.1 MEI Pharma to Consider Strategic Alternatives Company Commences a Cash Preservation Plan Including a Reduction in Force SAN DIEGO-(BUSINESS WIRE)—July 22, 2024 – MEI Pharma, Inc. (Nasdaq: MEIP) (the “Company”) today announced that its Board of Directors has determined unanimously to begin evaluation of the Company’s strategic alternatives, including potential transactions as well as a

June 25, 2024 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 18, 2024 MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 001-41827 51-0407811 (State or other jurisdiction of incorporation) (Commission File Num

May 21, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 21, 2024 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 21, 2024 EX-99.1

NASDAQ: MEIP Corporate Overview Novel drug candidates to address known resistance mechanisms to standard-of-care cancer therapies May 21, 2024

NASDAQ: MEIP Corporate Overview Novel drug candidates to address known resistance mechanisms to standard-of-care cancer therapies May 21, 2024 Forward Looking Statements Certain information contained in this communication that are not historical in nature are "forward-looking statements" within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995 incl

May 9, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-41827 MEI Pharma, Inc.

May 9, 2024 EX-99.1

MEI Pharma Reports Third Quarter Fiscal Year 2024 Results and Operational Highlights -- Ongoing Phase 1 Study Evaluating Voruciclib Plus Venetoclax Demonstrates Anti-leukemic Activity, Including Complete Responses, Anticipated Decreases in Mcl-1 and

MEI Pharma Reports Third Quarter Fiscal Year 2024 Results and Operational Highlights - Ongoing Phase 1 Study Evaluating Voruciclib Plus Venetoclax Demonstrates Anti-leukemic Activity, Including Complete Responses, Anticipated Decreases in Mcl-1 and No Overlapping Toxicity in Heavily Pretreated R/R AML Patients - - Board of Directors Unanimously Aligned on Prioritization of Voruciclib Program Development- - MEI Begins Fourth Fiscal Quarter with $56.

May 9, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 09, 2024 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 9, 2024 EX-10.1

Amended and Restated 2008 Stock Omnibus Equity Compensation Plan (December 2023)

MEI PHARMA, INC. AMENDED AND RESTATED 2008 STOCK OMNIBUS EQUITY COMPENSATION PLAN Effective as of December 18, 2023 Section 1. Purpose The Plan authorizes the Compensation Committee to provide Advisors, Employees and Non-Employee Directors that are providing services to the Company or its Affiliates, who are in a position to contribute to the long-term success of the Company or its Affiliates, wit

February 28, 2024 424B5

Up to $9,906,000 of Common Stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-277201 PROSPECTUS SUPPLEMENT (To Prospectus dated February 28, 2024) Up to $9,906,000 of Common Stock We have entered into a Capital on DemandTM Sales Agreement, or Sales Agreement, with JonesTrading Institutional Services LLC, or JonesTrading, dated February 20, 2024, relating to shares of our common stock, par value $0.00000002 per share, or

February 26, 2024 CORRESP

February 26, 2024

February 26, 2024 VIA EDGAR TRANSMISSION Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

February 21, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2024 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File

February 21, 2024 EX-1.1

Sales Agreement by and between MEI Pharma, Inc. and JonesTrading Institutional Services LLC, dated as of February 20, 2024.

Exhibit 1.1 MEI PHARMA, INC. Common Stock ($0.00000002 par value per share) Capital on Demand™ Sales Agreement February 20, 2024 JonesTrading Institutional Services LLC 325 Hudson Street 6th Floor New York, New York 10013 Ladies and Gentlemen: MEI Pharma, Inc., a Delaware corporation (the “Company”), proposes, subject to the terms and conditions stated herein, to issue and sell from time to time t

February 20, 2024 S-3

As filed with the Securities and Exchange Commission on February 20, 2024

Table of Contents As filed with the Securities and Exchange Commission on February 20, 2024 Registration Statement No.

February 20, 2024 EX-FILING FEES

Filing Fee

Exhibit 107 Calculation of Filing Fee Tables FORM S-3 (Form Type) MEI Pharma, Inc.

February 14, 2024 SC 13G/A

US55279B3015 / MEI Pharma, Inc. / TANG CAPITAL PARTNERS LP - AMENDMENT NO. 1 Passive Investment

Securities and Exchange Commission Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

February 13, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-41827 MEI Pharma, Inc.

February 13, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 13, 2024 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File

February 13, 2024 EX-99.1

MEI Pharma Reports Second Quarter Fiscal Year 2024 Results and Operational Highlights

MEI Pharma Reports Second Quarter Fiscal Year 2024 Results and Operational Highlights SAN DIEGO – February 13, 2024 – MEI Pharma, Inc.

February 13, 2024 EX-3.2

Amended and Restated Certificate of Incorporation of MEI Pharma, Inc.

Exhibit 3.2 CERTIFICATE OF AMENDMENT TO AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF MEI PHARMA, INC. MEI PHARMA, INC., a corporation organized and existing under the General Corporation Law of the State of Delaware, which was originally incorporated under the name, Marshall Edwards, Inc. (the “Corporation”), does hereby certify as follows: FIRST. Upon the filing and effectiveness (the “Ef

February 13, 2024 SC 13G/A

US55279B3015 / MEI Pharma, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01438-meipharmainc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)* Name of issuer: MEI Pharma Inc Title of Class of Securities: Common Stock CUSIP Number: 55279B301 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the ru

February 13, 2024 EX-10.4

Employment Agreement between MEI Pharma, Inc. and Richard Ghalie dated January 16, 2024

Exhibit 10.4 11455 El Camino Real, Suite 250 San Diego, CA 92130 (858) 369-7100 January 16, 2024 Dr. Richard Ghalie 4755 Natalie Drive, San Diego, CA. 92115 Dear Richard, On behalf of MEI Pharma, Inc. (“MEI”), this letter agreement (this “Agreement”) confirms the terms of your continued employment with MEI as the Chief Medical Officer of MEI (“CMO”), reporting to the Chief Executive Officer (the “

January 17, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 16, 2024 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File

December 26, 2023 8-K

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 19, 2023 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File

December 26, 2023 EX-16.1

BDO USA, P.C. letter dated December 26, 2023

Exhibit 16.1 December 26, 2023 Securities and Exchange Commission 100 F Street N.E. Washington, D.C. 20549 We have been furnished with a copy of the response to Item 4.01 of Form 8-K for the event that occurred on December 19, 2023, to be filed by our former client, MEI Pharma, Inc. We agree with the statements made in response to that Item insofar as they relate to our Firm. Very truly yours, /s/

December 22, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 18, 2023 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File

December 22, 2023 EX-3.1

Sixth Amended and Restated Bylaws of MEI Pharma, Inc. adopted as of December 18, 2023

Exhibit 3.1 SIXTH AMENDED AND RESTATED BYLAWS OF MEI PHARMA, INC. ADOPTED AS OF DECEMBER 18, 2023 ARTICLE I OFFICES SECTION 1. Registered Office. The registered office of the Corporation, and the registered agent of the Corporation at the address of such registered office, shall be as set forth in the Certificate of Incorporation of the Corporation, as amended and/or restated from time to time (th

December 18, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 18, 2023 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File

December 11, 2023 EX-99.1

MEI Pharma Reports Clinical Data on Oral CDK9 Inhibitor Voruciclib at ASH2023 – Safety Profile Observed to Date as Monotherapy and in Combination with Venetoclax Suggests no Overlapping Toxicity – – Initial Results from Correlative Studies Demonstrat

Exhibit 99.1 MEI Pharma Reports Clinical Data on Oral CDK9 Inhibitor Voruciclib at ASH2023 – Safety Profile Observed to Date as Monotherapy and in Combination with Venetoclax Suggests no Overlapping Toxicity – – Initial Results from Correlative Studies Demonstrate On-target Reductions in Mcl-1 and RNA Pol II p-S2 – SAN DIEGO – December 11, 2023 – MEI Pharma, Inc. (Nasdaq: MEIP), a clinical-stage p

December 11, 2023 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 11, 2023 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File

November 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-41827 MEI Pharma, Inc.

November 9, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 09, 2023 MEI Pharma, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File

November 9, 2023 EX-99.1

MEI Pharma Reports First Quarter Fiscal Year 2024 Results and Operational Highlights

MEI Pharma Reports First Quarter Fiscal Year 2024 Results and Operational Highlights SAN DIEGO – November 9, 2023 – MEI Pharma, Inc.

November 8, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

November 8, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

November 1, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

November 1, 2023 EX-10.1

Cooperation Agreement, dated as of October 31, 2023, by and among the Investors and the Company

Exhibit 10.1 Execution Copy COOPERATION AGREEMENT This Cooperation Agreement (this “Agreement”), effective as of October 31, 2023 (the “Effective Date”), is entered into by and among: • MEI Pharma, Inc., a Delaware corporation (the “Company”); • Funicular Funds, LP, a Delaware limited partnership (“Funicular”), Cable Car Capital LLC, a California limited liability company (“Cable Car”) and Jacob M

November 1, 2023 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confide

November 1, 2023 SC 13D/A

MEIP / MEI Pharma Inc / Anson Funds Management LP - AMENDMENT NO. 8 TO THE SCHEDULE 13D Activist Investment

SC 13D/A 1 sc13da81339200411012023.htm AMENDMENT NO. 8 TO THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 8)1 MEI Pharma, Inc. (Name of Issuer) Common Stock, $0.00000002 par value (Title

November 1, 2023 EX-99.1

MEI Pharma Enters into Agreement with Anson Funds and Cable Car Capital Commits to Capital Return of Up to $3.15 per Share Adds Three New Directors and Forms Capital Allocation Committee of the Board

Exhibit 99.1 MEI Pharma Enters into Agreement with Anson Funds and Cable Car Capital Commits to Capital Return of Up to $3.15 per Share Adds Three New Directors and Forms Capital Allocation Committee of the Board SAN DIEGO, TORONTO and SAN FRANCISCO – November 1, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) and Anson Funds and Cable Car Capital (“Anson and Cable Car”) today announced tha

November 1, 2023 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 31, 2023 MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 001-41827 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File

October 27, 2023 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1)

Table of Contents - UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 24, 2023 SC 13D/A

MEIP / MEI Pharma Inc / Anson Funds Management LP - AMENDMENT NO. 7 TO THE SCHEDULE 13D Activist Investment

SC 13D/A 1 sc13da71339200410242023.htm AMENDMENT NO. 7 TO THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 7)1 MEI Pharma, Inc. (Name of Issuer) Common Stock, $0.00000002 par value (Title

October 18, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

October 17, 2023 DEFC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Consent Revocation Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Consent Revocation Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Consent Revocation Statement ☐ Confidential, for Use of the Commission On

October 13, 2023 SC 13D/A

MEIP / MEI Pharma Inc / Anson Funds Management LP - AMENDMENT NO. 6 TO THE SCHEDULE 13D Activist Investment

SC 13D/A 1 sc13da61339200410132023.htm AMENDMENT NO. 6 TO THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 6)1 MEI Pharma, Inc. (Name of Issuer) Common Stock, $0.00000002 par value (Title

October 12, 2023 CORRESP

* * * *

Justin W. Chairman +1.215.963.5061 [email protected] October 12, 2023 Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Attention: Perry Hindin, Esquire Re: MEI Pharma, Inc. Preliminary Consent Revocation Statement on Schedule 14A filed September 15, 2023 File No. 000-50484 To Whom it May Concern: On behalf of MEI Pharma, In

October 12, 2023 PRER14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Consent Revocation Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Consent Revocation Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Consent Revocation Statement ☐ Confidential, for Use of the Commission On

October 10, 2023 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confide

October 10, 2023 DEFC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Consent Statement ☐ Confidential, for

October 3, 2023 EX-4.1

Rights Agreement between MEI Pharma, Inc. and Computershare, Inc. (as Rights Agent) dated as of October 1, 2023 (incorporated by reference to Exhibit 4.1 to the Registrant's Current Report on Form 8-K filed on October 3, 2023 (File No. 000-50484))

EX-4.1 Exhibit 4.1 MEI Pharma, Inc. and Computershare, Inc., as Rights Agent Rights Agreement Dated as of October 1, 2023 TABLE OF CONTENTS Page Section 1. Certain Definitions 1 Section 2. Appointment of Rights Agent 5 Section 3. Issue of Right Certificates 6 Section 4. Form of Right Certificates 7 Section 5. Countersignature and Registration 8 Section 6. Transfer, Split Up, Combination and Exchan

October 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): October 1, 2023 MEI PHARMA, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): October 1, 2023 MEI PHARMA, INC. (Exact Name of Registrant Specified in Charter) Delaware 000-50484 51-0407811 (State or Other Jurisdiction of Incorporation) (Commission File Number)

October 3, 2023 EX-99.1

MEI Pharma Adopts Limited-Duration Stockholder Rights Plan - Responds to Substantial Stock Accumulation by Anson Advisors and Cable Car Capital - - Protects Long-Term Value of All Stockholders’ Investments in MEI Pharma -

Exhibit 99.1 MEI Pharma Adopts Limited-Duration Stockholder Rights Plan - Responds to Substantial Stock Accumulation by Anson Advisors and Cable Car Capital - - Protects Long-Term Value of All Stockholders’ Investments in MEI Pharma - San Diego – October 2, 2023 – MEI Pharma, Inc. (Nasdaq: MEIP), a clinical-stage pharmaceutical company focused on advancing new therapies for cancer, today announced

October 3, 2023 EX-3.1

Certification of Designation of Series A Junior Participating Preferred Stock

EX-3.1 Exhibit 3.1 CERTIFICATE OF DESIGNATION of SERIES A JUNIOR PARTICIPATING PREFERRED STOCK of MEI PHARMA, INC. (Pursuant to Section 151 of the Delaware General Corporation Law) MEI Pharma, Inc., a corporation organized and existing under the General Corporation Law of the State of Delaware (hereinafter called the “Corporation”), hereby certifies that the following resolution was adopted by the

October 3, 2023 8-A12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 MEI PHARMA, INC. (Exact name of registrant as s

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 MEI PHARMA, INC. (Exact name of registrant as specified in its charter) Delaware 51-0407811 State of incorporation or organization) (I.R.S. Employer Identification No.) 11455 El Camino Real, Suite

October 2, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

September 29, 2023 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confide

September 29, 2023 PREC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☒ Preliminary Consent Statement ☐ Confidential, for

September 28, 2023 CORRESP

* * * *

Justin W. Chairman +1.215.963.5061 [email protected] September 28, 2023 Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Re: MEI Pharma, Inc.   Preliminary Consent Revocation Statement on Schedule 14A filed September 15, 2023   File No. 000-50484 To Whom it May Concern: On behalf of MEI Pharma, Inc. (the “Company”), we subm

September 28, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

September 28, 2023 PRER14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Consent Revocation Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Consent Revocation Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Consent Revocation Statement ☐ Confidential, for Use of the Commission On

September 26, 2023 EX-99.1

MEI Pharma Reports Fiscal Year 2023 Results and Operational Highlights — Conference Call Today at 5:00 p.m. Eastern Time —

Exhibit 99.1 MEI Pharma Reports Fiscal Year 2023 Results and Operational Highlights — Conference Call Today at 5:00 p.m. Eastern Time — SAN DIEGO – September 26, 2023 – MEI Pharma, Inc. (Nasdaq: MEIP), a clinical-stage pharmaceutical company focused on advancing new therapies for cancer, today reported results for its fiscal year ended June 30, 2023. “Over just the next few quarters we look forwar

September 26, 2023 SC 13D/A

MEIP / MEI Pharma Inc / Anson Funds Management LP - AMENDMENT NO. 5 TO THE SCHEDULE 13D Activist Investment

SC 13D/A 1 sc13da51339200409262023.htm AMENDMENT NO. 5 TO THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 5)1 MEI Pharma, Inc. (Name of Issuer) Common Stock, $0.00000002 par value (Title

September 26, 2023 DEFC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Consent Statement ☐ Confidential, for

September 26, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents - UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

September 26, 2023 EX-4.4

Description of MEI Common Stock

Exhibit 4.4 DESCRIPTION OF MEI COMMON STOCK The following descriptions of MEI Common Stock, provisions of the MEI COI, and the MEI Bylaws are summaries and are qualified by reference to such MEI COI and MEI Bylaws and applicable provisions of Delaware corporate law. MEI has filed copies of these documents with the SEC as exhibits to its periodic filings. Authorized Common Stock Under the MEI COI,

September 26, 2023 EX-10.22

Form of Warrant

Exhibit 10.22 FORM OF WARRANT NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN

September 26, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 September 26, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File

September 26, 2023 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confide

September 22, 2023 SC 13D/A

MEIP / MEI Pharma Inc / Anson Funds Management LP - AMENDMENT NO. 4 TO THE SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 4)1 MEI Pharma, Inc. (Name of Issuer) Common Stock, $0.00000002 par value (Title of Class of Securities) 55279B202 (CUSIP Number) JACOB MA-WEAVER CABLE CAR

September 22, 2023 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confide

September 22, 2023 PX14A6G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 NOTICE OF EXEMPT SOLICITATION Submitted Pursuant to Rule 14a-6(g) (Amendment No. ____)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 NOTICE OF EXEMPT SOLICITATION Submitted Pursuant to Rule 14a-6(g) (Amendment No. ) 1. Name of the Registrant: MEI Pharma, Inc. [CIK: 0001262104] 2. Name of Person Relying on Exemption: Scott Klarquist 3. Address of Person Relying on the Exemption: Available Upon Request 4. Written Material. The following written materials are

September 18, 2023 CORRESP

September 18, 2023

September 18, 2023 VIA EDGAR U.S. Securities and Exchange Commission 100 F. Street, N.E. Washington, D.C. 20549 RE: MEI Pharma, Inc. Commission File Number: 000-50484 Preliminary Consent Revocation Materials Ladies and Gentlemen: On behalf of MEI Pharma, Inc., a Delaware corporation (the “Company”), we are transmitting for filing under Rule 14a-6(a) of the Securities Exchange Act of 1934, as amend

September 18, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

September 15, 2023 PREC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Consent Revocation Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Consent Revocation Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Consent Revocation Statement ☐ Confidential, for Use of the Commission Onl

September 15, 2023 SC 13D/A

MEIP / MEI Pharma Inc / Anson Funds Management LP - AMENDMENT NO. 3 TO THE SCHEDULE 13D Activist Investment

SC 13D/A 1 sc13da31339200409152023.htm AMENDMENT NO. 3 TO THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 3)1 MEI Pharma, Inc. (Name of Issuer) Common Stock, $0.00000002 par value (Title

September 15, 2023 EX-99.1

JOINT FILING AND SOLICITATION AGREEMENT

EX-99.1 2 ex991to13da313392004091523.htm JOINT FILING AND SOLICITATION AGREEMENT Exhibit 99.1 JOINT FILING AND SOLICITATION AGREEMENT WHEREAS, certain of the undersigned are stockholders, direct or beneficial, of MEI Pharma, Inc., a Delaware corporation (the “Company”); and WHEREAS, Cable Car Capital LLC, Funicular Funds, LP, and Jacob Ma-Weaver (together, “Cable Car”) and Anson Investments Master

August 8, 2023 SC 13D/A

MEIP / MEI Pharma Inc / Anson Funds Management LP - AMENDMENT NO. 2 TO THE SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 2)1 MEI Pharma, Inc. (Name of Issuer) Common Stock, $0.00000002 par value (Title of Class of Securities) 55279B202 (CUSIP Number) JACOB MA-WEAVER CABLE CAR

August 4, 2023 PRRN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☒ Preliminary Consent Statement ☐

July 27, 2023 EX-10.1

Separation and Release Agreement between MEI Pharma, Inc. and Brian Drazba, dated June 16, 2023 (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on July 27, 2023 (File No. 000-50484))

Exhibit 10.1 Separation and Release Agreement This Separation and Release Agreement (“Agreement”) is made between you, Brian G. Drazba, and MEI Pharma, Inc., and sets forth the terms of your separation from employment with MEI Pharma, Inc. and its affiliates (“MEI”). This Agreement will become effective upon the “Effective Date” as specified in Section 11(a), below. Once effective, this Agreement

July 27, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 26, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 26, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numb

July 24, 2023 EX-10.1

Termination Letter from MEI Pharma, Inc. to Infinity Pharmaceuticals, Inc., dated July 23, 2023 (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on July 24, 2023 (File No. 000-50484))

EX-10.1 Exhibit 10.1 July 23, 2023 VIA EMAIL AND HAND DELIVERY Infinity Pharmaceuticals, Inc. 1100 Massachusetts Avenue, Floor 4 Cambridge, Massachusetts 02138 Attention: General Counsel Email: [email protected] RE: Termination Notice Dear Seth: Reference is hereby made to that certain Agreement and Plan of Merger, dated as of February 22, 2023, by and among Infinity Pharmaceuticals, Inc. (“Iri

July 24, 2023 EX-99.1

MEI Pharma Announces Results of Special Meeting of Stockholders

EX-99.1 Exhibit 99.1 MEI Pharma Announces Results of Special Meeting of Stockholders SAN DIEGO, July 23, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) today announced that, based on a count of the votes cast at the Company’s Special Meeting of Stockholders, MEI, by a narrow margin, did not obtain the necessary stockholder votes to approve the merger agreement with Infinity Pharmaceuticals

July 24, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 23, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 23, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numb

July 19, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 14, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 14, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File

July 19, 2023 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Consent Statement ☐ C

July 19, 2023 EX-99.1

MEI Pharma Reminds Shareholders to Vote Today FOR the Infinity Transaction

EX-99.1 Exhibit 99.1 MEI Pharma Reminds Shareholders to Vote Today FOR the Infinity Transaction SAN DIEGO, July 19, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) today reminded shareholders to vote FOR the pending transaction with Infinity Pharmaceuticals, Inc. (Nasdaq: INFI) (“Infinity”) in connection with the Company’s special meeting on July 23, 2023. MEI issued the following statement

July 19, 2023 EX-10.1

Termination Agreement, by and between MEI Pharma, Inc. and Kyowa Kirin Co., Ltd. (formerly known as Kyowa Hakko Kirin Co., Ltd.) dated as of July 14, 2023

EX-10.1 Exhibit 10.1 Certain identified information has been excluded from this Exhibit 10.1 because it is both not material and would likely cause competitive harm to MEI Pharma, Inc. if publicly disclosed. The redacted portions are marked as [*CONFIDENTIAL*]. Execution Version Termination Agreement This Termination Agreement (this “Termination Agreement”) is made and entered into effective as of

July 19, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 14, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 14, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numb

July 18, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 18, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 18, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numb

July 18, 2023 EX-99.1

11455EI Camino Real, Suite 250, San Diego, CA 92130

EX-99.1 Exhibit 99.1 July 17, 2023 Cable Car Capital LLC 601 California Street, Suite 1151 San Francisco, CA 94108 Attention: Jacob Ma-Weaver, Managing Member Anson Advisors, Inc. 155 University Avenue, Suite 207 Toronto, ON, Canada, M5H 3B7 Attention: Moez Kassam, Director Dear Messrs. Ma-Weaver and Kassam: I am in receipt of your letter dated July 17, 2023 (“Record Date Request Letter”). The Rec

July 18, 2023 EX-99.2

MEI Pharma Responds to Anson and Cable Car

EX-99.2 Exhibit 99.2 MEI Pharma Responds to Anson and Cable Car SAN DIEGO, July 18, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) today issued the following statement in response to the Consent Solicitation launched by Anson Advisors Inc. and Cable Car Capital LLC on July 17, 2023: Anson and Cable Car have launched a process, called a consent solicitation, in an attempt to take control of

July 18, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 18, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 18, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File

July 17, 2023 PREC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☒ Preliminary Consent Statement ☐ C

July 17, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 17, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 17, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numb

July 17, 2023 EX-99.1

Anson and Cable Car FILE PRELIMINARY CONSENT MATERIALS TO REMOVE ENTIRE BOARD OF DIRECTORS AT MEI Pharma, Inc. Believe the Board Needs to be Held Accountable for its Poor Judgment and Value-Destructive Initiatives Reiterate their Concern that the Boa

Exhibit 99.1 Anson and Cable Car FILE PRELIMINARY CONSENT MATERIALS TO REMOVE ENTIRE BOARD OF DIRECTORS AT MEI Pharma, Inc. Believe the Board Needs to be Held Accountable for its Poor Judgment and Value-Destructive Initiatives Reiterate their Concern that the Board is Not Acting in the Best Interest of Stockholders Believe Immediate Action Must be Taken to Prevent the Further Destruction of Value

July 17, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 17, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 17, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File

July 17, 2023 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN CONSENT STATEMENT SCHEDULE 14A INFORMATION Consent Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Consent Statement ☐ C

July 17, 2023 SC 13D/A

MEIP / MEI Pharma Inc / Anson Funds Management LP - AMENDMENT NO. 1 TO THE SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. 1)1 MEI Pharma, Inc. (Name of Issuer) Common Stock, $0.00000002 par value (Title of Class of Securities) 55279B202 (CUSIP Number) JACOB MA-WEAVER CABLE CAR

July 17, 2023 EX-99.1

MEI Pharma Encourages Shareholders to Vote FOR the Infinity Transaction

EX-99.1 Exhibit 99.1 MEI Pharma Encourages Shareholders to Vote FOR the Infinity Transaction SAN DIEGO, July 17, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) today mailed the following letter to shareholders, encouraging them to vote FOR the pending transaction with Infinity Pharmaceuticals, Inc. (Nasdaq: INFI) (“Infinity”) in connection with the Company’s special meeting on July 23, 202

July 13, 2023 424B3

SUPPLEMENT TO

Filed Pursuant to Rule 424(b)(3) Registration Statement No. 333-271481 MEI Pharma, Inc. (“MEI”) has filed a registration statement on Form S-4, as amended (File No. 333-271481) (the “Registration Statement”) with the Securities and Exchange Commission (“SEC”) for the offering to which this communication relates. The Registration Statement relates to an offering of securities of MEI to stockholders

July 13, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 13, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 13, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numb

July 13, 2023 EX-99.1

MEI Pharma Postpones Special Meeting of Shareholders

EX-99.1 Exhibit 99.1 MEI Pharma Postpones Special Meeting of Shareholders SAN DIEGO, July 13, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) today announced that it has postponed its special meeting in connection with the proposed transaction with Infinity Pharmaceuticals, Inc. (“Infinity”) to July 23, 2023, at 10:00 a.m. Eastern Time, unless postponed or adjourned to a later date. MEI iss

July 13, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 13, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 13, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File

July 10, 2023 PX14A6G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 NOTICE OF EXEMPT SOLICITATION Submitted Pursuant to Rule 14a-6(g) (Amendment No. ____)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 NOTICE OF EXEMPT SOLICITATION Submitted Pursuant to Rule 14a-6(g) (Amendment No. ) 1. Name of the Registrant: MEI Pharma, Inc. [CIK: 0001262104] 2. Name of Person Relying on Exemption: Scott Klarquist 3. Address of Person Relying on the Exemption: Available Upon Request 4. Written Material. The following written materials are

July 7, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 7, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 7, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numbe

July 7, 2023 EX-99.1

MEI Pharma Reminds Shareholders to Vote FOR the Merger with Infinity Pharmaceuticals

EX-99.1 Exhibit 99.1 MEI Pharma Reminds Shareholders to Vote FOR the Merger with Infinity Pharmaceuticals Glass Lewis Joins ISS in Recommending that MEI Shareholders Vote FOR the Infinity Transaction SAN DIEGO, July 7, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) today reminded shareholders to vote FOR the Company’s pending transaction with Infinity Pharmaceuticals, Inc. (Nasdaq: INFI) (

July 7, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 7, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 7, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File N

July 5, 2023 EX-99.2

Alliance Advisors 200 Broadacres Drive, 3rd Fl. Bloomfield, NJ 07003 PRESORT FIRST CLASS U.S. POSTAGE PAID So. HACKENSACK, NJ PERMIT #251 Attention MEI Pharma Shareholders An Important Special Meeting is Approaching Your Vote Matters – Vote Today A s

EX-99.2 Exhibit 99.2 Alliance Advisors 200 Broadacres Drive, 3rd Fl. Bloomfield, NJ 07003 PRESORT FIRST CLASS U.S. POSTAGE PAID So. HACKENSACK, NJ PERMIT #251 Attention MEI Pharma Shareholders An Important Special Meeting is Approaching Your Vote Matters – Vote Today A special meeting of shareholders is scheduled for July 14, 2023. MEI Board of Directors recommends you vote FOR the pending Infinit

July 5, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 5, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 5, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numbe

July 5, 2023 EX-99.1

MEI Pharma Highlights Recommendation by Leading Independent Proxy Advisory Firm ISS to Vote “FOR” Pending Transaction with Infinity Pharmaceuticals Affirms Value Creating Potential of Proposed Transaction with Infinity Pharmaceuticals Highlights Shar

EX-99.1 Exhibit 99.1 MEI Pharma Highlights Recommendation by Leading Independent Proxy Advisory Firm ISS to Vote “FOR” Pending Transaction with Infinity Pharmaceuticals Affirms Value Creating Potential of Proposed Transaction with Infinity Pharmaceuticals Highlights Shareholder Opportunity to Participate in Upside Potential of Diversified Combined Pipeline of Three Clinical-Stage Development Progr

July 5, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 5, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 July 5, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File N

July 3, 2023 424B3

SUPPLEMENT TO PROSPECTUS

424B3 Filed Pursuant to Rule 424(b)(3) Registration Statement No. 333-271481 MEI Pharma, Inc. (“MEI”) has filed a registration statement on Form S-4, as amended (File No. 333-271481) (the “Registration Statement”) with the Securities and Exchange Commission (“SEC”) for the offering to which this communication relates. The Registration Statement relates to an offering of securities of MEI to stockh

June 29, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 29, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 29, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File

June 29, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 29, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numb

June 29, 2023 EX-99.1

MEI Pharma Mails Letter to Shareholders Reiterating Value Creating Potential of Proposed Transaction with Infinity Pharmaceuticals Highlights Shareholder Opportunity to Participate in Upside Potential of Diversified Combined Pipeline of Three Clinica

EX-99.1 Exhibit 99.1 MEI Pharma Mails Letter to Shareholders Reiterating Value Creating Potential of Proposed Transaction with Infinity Pharmaceuticals Highlights Shareholder Opportunity to Participate in Upside Potential of Diversified Combined Pipeline of Three Clinical-Stage Development Programs Combined Company Well-Positioned to Make a Difference in Cancer Care With Significant Potential to D

June 28, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 27, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 27, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File

June 28, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 27, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 27, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numb

June 28, 2023 EX-99.1

MEI Pharma Responds to Anson and Cable Car

EX-99.1 Exhibit 99.1 MEI Pharma Responds to Anson and Cable Car SAN DIEGO, June 27, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) today issued the following statement in response to the disclosure made today by Anson Advisors Inc. and Cable Car Capital LLC: Anson and Cable Car reiterated their formerly disclosed, unsolicited and non-binding proposal that our Board of Directors previously

June 28, 2023 EX-99.1

MEI Pharma Responds to Anson and Cable Car

EX-99.1 Exhibit 99.1 MEI Pharma Responds to Anson and Cable Car SAN DIEGO, June 27, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) today issued the following statement in response to the disclosure made today by Anson Advisors Inc. and Cable Car Capital LLC: Anson and Cable Car reiterated their formerly disclosed, unsolicited and non-binding proposal that our Board of Directors previously

June 20, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 15, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

425 1 d485555d425.htm 425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 15, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporat

June 20, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 15, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 15, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numb

June 20, 2023 EX-99.1

MEI Pharma and Infinity Pharmaceuticals Host Video Webcast Providing Overview and Update on Pending Merger to Advance Three Promising Clinical Oncology Candidates Event Available at 8:00 a.m. Eastern Time on June 19, 2023

EX-99.1 Exhibit 99.1 MEI Pharma and Infinity Pharmaceuticals Host Video Webcast Providing Overview and Update on Pending Merger to Advance Three Promising Clinical Oncology Candidates Event Available at 8:00 a.m. Eastern Time on June 19, 2023 SAN DIEGO, CA. and CAMBRIDGE, MA., June 15, 2023 – MEI Pharma, Inc. (Nasdaq: MEIP) (“MEI”), a clinical-stage pharmaceutical company focused on advancing new

June 20, 2023 EX-99.2

A Transaction with Potential to Create Significant Opportunities and Build Value TODAY’S AGENDA Welcome and Overview David Urso, President & CEO (MEIP and combined company) Eganelisib Dr. Robert Ilaria, Jr., Chief Medical Officer (INFI and combined c

EX-99.2 JUNE 2023 MEI Pharma & Infinity Pharmaceuticals Merger and Clinical Program Update Exhibit 99.2 A Transaction with Potential to Create Significant Opportunities and Build Value TODAY’S AGENDA Welcome and Overview David Urso, President & CEO (MEIP and combined company) Eganelisib Dr. Robert Ilaria, Jr., Chief Medical Officer (INFI and combined company) Dr. Ezra Cohen Chief Medical Officer,

June 14, 2023 EX-FILING FEES

Calculation of Filing Fee

EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) MEI PHARMA, INC.

June 14, 2023 S-8

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 51-0407811 (State or other jurisdictio

S-8 Registration No. 333- As filed with the Securities and Exchange Commission on June 13, 2023 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 51-0407811 (State or other jurisdiction of incorporation or organization) (IRS Employe

June 13, 2023 EX-10.1

Employee Proprietary Information and Inventions Agreement between MEI Pharma, Inc. and Jay File, dated June 9, 2023 (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on June 13, 2023 (File No. 000-50484))

EX-10.1 Exhibit 10.1 Execution Copy MEI PHARMA, INC. EMPLOYEE PROPRIETARY INFORMATION AND INVENTIONS AGREEMENT In consideration of my employment or continued employment by MEI Pharma, Inc. (the “Company”), and the compensation now and hereafter paid to me, I hereby agree as follows: 1. NONDISCLOSURE 1.1 Recognition of Company’s Rights; Nondisclosure. At all times during my employment and thereafte

June 13, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 9, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 9, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numbe

June 13, 2023 EX-10.2

Employment Agreement between MEI Pharma, Inc. and Jay File, dated June 9, 2023 (incorporated by reference to Exhibit 10.2 to the Registrant's Current Report on Form 8-K filed on June 13, 2023 (File No. 000-50484))

EX-10.2 Exhibit 10.2 Execution Copy 11455 El Camino Real, Suite 250 San Diego, CA 92130 (858) 369-7100 June 9, 2023 Dear Jay, On behalf of MEI Pharma, Inc. (“MEI”), this letter agreement (the “Agreement”) confirms the terms of your employment with MEI, commencing June 12, 2023. As of June 12, 2023, you will be appointed and serve as Executive Vice President of Finance of MEI (“EVP Finance”). The B

June 13, 2023 EX-99.1

MEI Pharma Announces Planned Departure of Chief Financial Officer Brian Drazba and Appointment of Justin File as Successor

EX-99.1 Exhibit 99.1 MEI Pharma Announces Planned Departure of Chief Financial Officer Brian Drazba and Appointment of Justin File as Successor SAN DIEGO, June 13, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”), a clinical-stage pharmaceutical company focused on advancing new therapies for cancer, today announced that, consistent with the Company’s succession planning, Brian Drazba’s tenur

June 13, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 9, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 9, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File N

June 13, 2023 EX-10.3

Amended and Restated MEI Pharma, Inc. 2021 Inducement Grant Equity Compensation Plan

EX-10.3 Exhibit 10.3 MEI PHARMA, INC. AMENDED & RESTATED 2021 INDUCEMENT GRANT EQUITY COMPENSATION PLAN Section 1. Purpose The Plan is intended to assist the Company and its Affiliates, in attracting and retaining selected individuals to serve as employees who are expected to contribute to the Company’s success, by providing an inducement material for such individuals to enter into employment with

June 6, 2023 424B3

PROPOSED MERGER YOUR VOTE IS VERY IMPORTANT

424B3 Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-271481 PROPOSED MERGER YOUR VOTE IS VERY IMPORTANT To the stockholders of MEI Pharma, Inc. and Infinity Pharmaceuticals, Inc.: The boards of directors of MEI Pharma, Inc., a Delaware corporation (“MEI”) and Infinity Pharmaceuticals Inc., a Delaware corporation (“Infinity”), have agreed upon a transaction in which Infinit

June 5, 2023 EX-10.39

Form of Infinity Nonstatutory Stock Option Agreement for Inducement Grant Pursuant to Nasdaq Stock Market Rule 5635(c)(4).

EX-10.39 Exhibit 10.39 INFINITY PHARMACEUTICALS, INC. Nonstatutory Stock Option Agreement Inducement Grant Pursuant to NASDAQ Stock Market Rule 5635(c)(4) 1.Grant of Option. This agreement (the “Agreement”) evidences the grant by Infinity Pharmaceuticals, Inc. (the “Company”) on [], 201[] (the “Grant Date”) to [], an employee of the Company (the “Participant”), of an option (the “Option”) to purch

June 5, 2023 EX-99.7

Consent of Aquilo Partners

EX-99.7 Exhibit 99.7 CONSENT OF AQUILO PARTNERS We hereby consent to the inclusion of our opinion letter, dated February 22, 2023 (the “Opinion Letter”), addressed to the Board of Directors of Infinity Pharmaceuticals, Inc. (the “Company”), included as Annex C to the joint proxy statement/prospectus contained in that certain registration statement on Form S-4/A (the “Registration Statement”) of ME

June 5, 2023 EX-10.28

Lease Agreement, dated April 3, 2019, between Infinity Pharmaceuticals, Inc. and Sun Life Assurance Company of Canada.

EX-10.28 Exhibit 10.28 OFFICE LEASE 1100 MASSACHUSETTS AVENUE, CAMBRIDGE, MA Landlord : Sun Life Assurance Company of Canada Tenant : Infinity Pharmaceuticals, Inc. Date : April 3, 2019 This Lease consists of four parts: Part I Cover Sheet Part II Standard Lease Provisions Part III Additional Provisions (if any) and Part IV Exhibits EXHIBIT A—Floor Plan of Premises EXHIBIT B—Tenant Improvements EX

June 5, 2023 EX-10.22

Termination and Revised Relationship Agreement, dated as of July 17, 2012, between Infinity Pharmaceuticals, Inc. and Mundipharma International Corporation Limited.

EX-10.22 Exhibit 10.22 EXECUTION VERSION TERMINATION AND REVISED RELATIONSHIP AGREEMENT This Termination and Revised Relationship Agreement (this “Agreement”) is entered into as of the 17 th day of July 2012 (the “Effective Date”) by and between Infinity Pharmaceuticals, Inc., a Delaware corporation having its principal office at 780 Memorial Drive, Cambridge, Massachusetts 02139 (“Infinity”), and

June 5, 2023 EX-10.20

Convertible Promissory Note, dated as of July 26, 2017, by and between Infinity Pharmaceuticals, Inc. and Intellikine LLC.

EX-10.20 Exhibit 10.20 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. NO SALE OR DISPOSITION MAY BE EFFECTED EXCEPT IN COMPLIANCE WITH RULE 144 UNDER SAID ACT OR AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL FOR THE HOLDER SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE ACT OR RECE

June 5, 2023 EX-10.37

Form of Infinity Nonstatutory Stock Option Agreement under 2010 Stock Incentive Plan.

EX-10.37 Exhibit 10.37 INFINITY PHARMACEUTICALS, INC. Nonstatutory Stock Option Granted Under 2010 Stock Incentive Plan (the “Plan”) 1. Grant of Option. It is intended that the option shall not be an incentive stock option as defined in Section 422 of the Internal Revenue Code of 1986, as amended, and any regulations promulgated thereunder (the “Code”). Except as otherwise indicated by the context

June 5, 2023 EX-10.43

Form of Stock Option Agreement under Infinity 2019 Equity Incentive Plan.

EX-10.43 Exhibit 10.43 INFINITY PHARMACEUTICALS, INC. STOCK OPTION AGREEMENT Infinity Pharmaceuticals, Inc. (the “ Company ”) hereby grants the following stock option pursuant to its 2019 Equity Incentive Plan. The terms and conditions attached hereto are also a part hereof. Notice of Grant Name of optionee (the “ Participant ”): Grant Date: Incentive Stock Option or Nonstatutory Stock Option: Num

June 5, 2023 EX-10.50

Retention and Severance Protection Agreement between Infinity Pharmaceuticals, Inc. and Stephane Peluso dated as of February 22, 2023.

EX-10.50 Exhibit 10.50 Cambridge, MA Tel: 617-453-1000 Fax: 617-453-1001 www.infi.com February 22, 2023 Stéphane Peluso 1100 Massachusetts Avenue Cambridge, MA 02138 Dear Stéphane: As you know, Infinity Pharmaceuticals, Inc. (“Infinity”) is entering into a merger agreement with MEI Pharma, Inc. (“MEI”) by which, if the merger is completed in accordance with its terms, Infinity will become a subsid

June 5, 2023 EX-10.32

Amendment No. 3 to Infinity 2010 Stock Incentive Plan.

EX-10.32 Exhibit 10.32 INFINITY PHARMACEUTICALS, INC. 2010 STOCK INCENTIVE PLAN 1. Purpose The purpose of this 2010 Stock Incentive Plan (the “Plan”) of Infinity Pharmaceuticals, Inc., a Delaware corporation (the “Company”), is to advance the interests of the Company’s stockholders by enhancing the Company’s ability to attract, retain and motivate persons who are expected to make important contrib

June 5, 2023 EX-10.35

Amendment No. 6 to Infinity 2010 Stock Incentive Plan.

EX-10.35 Exhibit 10.35 AMENDMENT NO. 6 TO 2010 STOCK INCENTIVE PLAN OF INFINITY PHARMACEUTICALS, INC. The 2010 Stock Incentive Plan, as amended (the “Plan”) of Infinity Pharmaceuticals, Inc. is hereby amended as follows: 1. Sections 6(a), (b), and (c) of the Plan are hereby deleted and new Sections 6(a), (b), and (c) are inserted in lieu thereof which shall read as follows: “(a) Initial Grant . Up

June 5, 2023 EX-10.48

Amendment No. 1, dated August 3, 2018, to Infinity Pharmaceuticals, Inc. Executive Severance Benefits Plan.

EX-10.48 Exhibit 10.48 AMENDMENT NO. 1 TO INFINITY PHARMACEUTICALS, INC. EXECUTIVE SEVERANCE BENEFITS PLAN The Executive Severance Benefits Plan (the “Plan”) of Infinity Pharmaceuticals, Inc. is hereby amended as follows: 1. Section 3(h) of the Plan is hereby deleted and a new Section 3(h) is inserted in lieu thereof which shall read as follows: “(h) “ Covered Employees ” shall mean all Regular Fu

June 5, 2023 EX-10.53

Retention and Severance Protection Agreement between Infinity Pharmaceuticals, Inc. and Lawrence Bloch dated as of March 29, 2023.

EX-10.53 Exhibit 10.53 THIS IS AN IMPORTANT LEGAL DOCUMENT. PLEASE CONFER WITH A LAWYER OR OTHER TRUSTED ADVISOR BEFORE SIGNING THIS DOCUMENT. February 23, 2023 VIA HAND DELIVERY Lawrence Bloch P.O. Box 650129 West Newton, MA 02465 Re: Severance Agreement and Release Dear Lawrence: This letter summarizes the terms of your separation from employment with Infinity Pharmaceuticals Inc (the “Company”)

June 5, 2023 EX-10.49

Retention and Severance Protection Agreement between Infinity Pharmaceuticals, Inc. and Robert Ilaria dated as of February 22, 2023.

EX-10.49 Exhibit 10.49 Cambridge, MA Tel: 617-453-1000 Fax: 617-453-1001 www.infi.com February 22, 2023 Robert Ilaria 1100 Massachusetts Avenue Cambridge, MA 02138 Dear Robert: As you know, Infinity Pharmaceuticals, Inc. (“Infinity”) is entering into a merger agreement with MEI Pharma, Inc. (“MEI”) by which, if the merger is completed in accordance with its terms, Infinity will become a subsidiary

June 5, 2023 EX-10.46

Offer Letter between Infinity Pharmaceuticals, Inc. and Robert Ilaria, Jr., M.D., dated August 11, 2021.

EX-10.46 Exhibit 10.46 1100 Massachusetts Ave Cambridge, MA Tel: 617-453-1000 Fax: 617-453-1001 www.infi.com August 11, 2021 Robert L. Ilaria, Jr., M.D. 9 Highview Terrace Madison, NJ 07940 Dear Robert, On behalf of Infinity Pharmaceuticals, Inc. (the “Company”), I am pleased to offer you the position of Senior Vice President, Chief Medical Officer reporting to Adelene Perkins, Chief Executive Off

June 5, 2023 EX-10.41

Form of Infinity Restricted Stock Unit Agreement for Inducement Grant Pursuant to Nasdaq Stock Market Rule 5635(c)(4).

EX-10.41 Exhibit 10.41 INFINITY PHARMACEUTICALS, INC. RESTRICTED STOCK UNIT AGREEMENT Inducement Grant Pursuant to Nasdaq Stock Market Rule 5635(c)(4) Infinity Pharmaceuticals, Inc. (the “Company”) hereby grants the following restricted stock units. The terms and conditions attached hereto are also a part hereof. Notice of Grant Name of recipient (the “Participant”): Grant Date: Number of restrict

June 5, 2023 EX-10.36

Form of Infinity Incentive Stock Option Agreement under 2010 Stock Incentive Plan.

EX-10.36 Exhibit 10.36 INFINITY PHARMACEUTICALS, INC. STOCK OPTION AGREEMENT Infinity Pharmaceuticals, Inc. (the “ Company ”) hereby grants the following stock option pursuant to its 2019 Equity Incentive Plan. The terms and conditions attached hereto are also a part hereof. Notice of Grant Name of optionee (the “ Participant ”): Grant Date: Incentive Stock Option or Nonstatutory Stock Option: Num

June 5, 2023 EX-10.27

Novation and Amendment Agreement, dated January 27, 2020, by and among Infinity Pharmaceuticals, Inc., BVF Partners, L.P., Royalty Security, LLC, and Royalty Security Holdings, LLC.

EX-10.27 EXHIBIT 10.27 Execution Version NOVATION AND AMENDMENT AGREEMENT This Novation and Amendment Agreement (this “Agreement”) is made as of January 27, 2020, by and among Infinity Pharmaceuticals, Inc. (the “Company”), BVF Partners L.P. (“BVF”), Royalty Security Holdings, LLC (“Holdco”), and Royalty Security, LLC (“Buyer”). Each of the Company, BVF, Holdco and Buyer are referred to herein ind

June 5, 2023 EX-10.26

Funding Agreement, dated January 8, 2020, by and among Infinity Pharmaceuticals, Inc., BVF Partners, L.P., and Royalty Security, LLC.

EX-10.26 EXHIBIT 10.26 Execution Version FUNDING AGREEMENT This Funding Agreement (this “Agreement”), dated as of January 8, 2020, is entered into by and among Infinity Pharmaceuticals, Inc., a Delaware corporation (the “Company”), BVF Partners L.P., a Delaware limited partnership (“BVF”) and Royalty Security, LLC, a wholly owned subsidiary of BVF and a Delaware limited liability company (“Buyer”)

June 5, 2023 EX-10.25

Protective Rights Agreement, dated as of March 11, 2019, between Infinity Pharmaceuticals, Inc. and HCR Collateral Managements, LLC.

EX-10.25 Exhibit 10.25 Execution Version PROTECTIVE RIGHTS AGREEMENT THIS PROTECTIVE RIGHTS AGREEMENT (this “Agreement”) is made and entered into as of March 11, 2019 by and between Infinity Pharmaceuticals, Inc., a Delaware corporation (“Grantor”), and HCR Collateral Management, LLC, a Delaware limited liability company (“Agent”), as agent for HealthCare Royalty Partners III, L.P., a Delaware lim

June 5, 2023 EX-10.23

Termination and Revised Relationship Agreement, dated as of July 17, 2012, between Infinity Pharmaceuticals, Inc. and Purdue Pharmaceutical Products L.P.

EX-10.23 Exhibit 10.23 EXECUTION VERSION TERMINATION AND REVISED RELATIONSHIP AGREEMENT This Termination and Revised Relationship Agreement (this “Agreement”) is entered into as of the 17th day of July 2012 (the “Effective Date”) by and between Infinity Pharmaceuticals, Inc., a Delaware corporation having its principal office at 780 Memorial Drive, Cambridge, Massachusetts 02139 (“Infinity”), and

June 5, 2023 EX-10.16

Amendment to Amended and Restated Development and License Agreement, dated as of July 29, 2014, by and between Infinity Pharmaceuticals, Inc. and Intellikine LLC.

EX-10.16 Exhibit 10.16 AMENDMENT TO AMENDED AND RESTATED DEVELOPMENT AND LICENSE AGREEMENT This Amendment to Amended and Restated Development and License Agreement (“Amendment”) is made as of this 29th day of July, 2014 (the “Amendment Effective Date”) by and between Intellikine LLC, a limited liability company organized and existing under the laws of the State of Delaware and successor to Intelli

June 5, 2023 EX-99.1

Form of MEI Pharma, Inc. Proxy Card.

EX-99.1 Exhibit 99.1 MMMMMMMMMMMMMM C123456789 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext ENDORSEMENTLINE SACKPACK 000000000.000000 ext 000000000.000000 ext MR A SAMPLE DESIGNATION (IF ANY) ADD 1 000001 ADD 2 Your vote matters – here’s how to vote! ADD 3 You may vote online or by phone instead of mailing this card. ADD 4 MMMMMMMMM ADD 5 Online ADD 6 Go to w

June 5, 2023 EX-10.52

Retention and Severance Protection Agreement between Infinity Pharmaceuticals, Inc. and Seth Tasker dated as of February 22, 2023.

EX-10.52 Exhibit 10.52 Cambridge, MA Tel: 617-453-1000 Fax: 617-453-1001 www.infi.com February 22, 2023 Seth Tasker 1100 Massachusetts Avenue Cambridge, MA 02138 Dear Seth: As you know, Infinity Pharmaceuticals, Inc. (“Infinity”) is entering into a merger agreement with MEI Pharma, Inc. (“MEI”) by which, if the merger is completed in accordance with its terms, Infinity will become a subsidiary of

June 5, 2023 EX-10.47

Infinity Pharmaceuticals, Inc. Executive Severance Benefits Plan effective February 6, 2013.

EX-10.47 Exhibit 10.47 Infinity Pharmaceuticals, Inc. Executive Severance Benefits Plan 1. Establishment of Plan. Infinity Pharmaceuticals, Inc. (the “Company”) hereby establishes an unfunded severance benefits plan (the “Plan”) that is intended to be a welfare benefit plan within the meaning of Section 3(1) of ERISA. The Plan is in effect for Covered Employees who experience a Covered Termination

June 5, 2023 EX-10.40

Form of Infinity Nonstatutory Stock Option Award Agreement for Inducement Grant Pursuant to Nasdaq Stock Market Rule 5635(c)(4).

EX-10.40 Exhibit 10.40 INFINITY PHARMACEUTICALS, INC. Nonstatutory Stock Option Agreement Inducement Grant Pursuant to Nasdaq Stock Market Rule 5635(c)(4) 1. Grant of Option. This agreement (the “Agreement”) evidences the grant by Infinity Pharmaceuticals, Inc. (the “Company”) on [] (the “Grant Date”) to [], an employee of the Company (the “Participant”), of an option (the “Option”) to purchase, o

June 5, 2023 EX-10.31

Amendment No. 2 to Infinity 2010 Stock Incentive Plan.

EX-10.31 Exhibit 10.31 AMENDMENT NO. 2 TO INFINITY PHARMACEUTICALS, INC. 2010 STOCK INCENTIVE PLAN The 2010 Stock Incentive Plan, as amended (the “Plan”) of Infinity Pharmaceuticals, Inc. is hereby amended as follows: Section 4(a)(1) of the Plan is hereby deleted and a new Section 4(a)(1) is inserted in lieu thereof which shall read as follows: “(1) Authorized Number of Shares. Subject to adjustme

June 5, 2023 EX-10.24

Purchase and Sale Agreement, dated as of March 5, 2019, between Infinity Pharmaceuticals, Inc. and HealthCare Royalty Partners III, L.P.

EX-10.24 Exhibit 10.24 Execution Version PURCHASE AND SALE AGREEMENT dated as of March 5, 2019 between INFINITY PHARMACEUTICALS, INC. and HEALTHCARE ROYALTY PARTNERS III, L.P. Table of Contents Page ARTICLE I DEFINED TERMS AND RULES OF CONSTRUCTION Section 1.1 Defined Terms 1 Section 1.2 Rules of Construction 6 ARTICLE II PURCHASE AND SALE OF THE PURCHASED ASSETS Section 2.1 Purchase and Sale 8 Se

June 5, 2023 EX-10.19

Amendment No. 4 to Amended and Restated Development and License Agreement, dated as of March 4, 2019, by and between Infinity Pharmaceuticals, Inc. and Intellikine LLC.

EX-10.19 Exhibit 10.19 AMENDMENT No. 4 TO AMENDED AND RESTATED DEVELOPMENT AND LICENSE AGREEMENT This Amendment No. 4 to Amended and Restated Development and License Agreement (“Amendment No. 4”) is made as of this 4 th day of March, 2019 (the “Amendment No. 4 Effective Date”) by and between Intellikine LLC, a limited liability company organized and existing under the laws of the State of Delaware

June 5, 2023 EX-10.18

Amendment No. 3 to Amended and Restated Development and License Agreement, dated as of July 26, 2017, by and between Infinity Pharmaceuticals, Inc. and Intellikine LLC.

EX-10.18 Exhibit 10.18 AMENDMENT No. 3 TO AMENDED AND RESTATED DEVELOPMENT AND LICENSE AGREEMENT This Amendment No. 3 to Amended and Restated Development and License Agreement (“Amendment No. 3”) is made as of this 26 th day of July, 2017 (the “Amendment No. 3 Effective Date”) by and between Intellikine LLC, a limited liability company organized and existing under the laws of the State of Delaware

June 5, 2023 CORRESP

MEI Pharma, Inc. 11455 El Camino Real, Suite 250 San Diego, California 92130

CORRESP MEI Pharma, Inc. 11455 El Camino Real, Suite 250 San Diego, California 92130 June 5, 2023 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Life Sciences 100 F. Street, N.E. Washington, D.C. 20549 Re: MEI Pharma, Inc. Registration Statement on Form S-4 File No. 333-271481 Request for Acceleration Ladies and Gentlemen: Pursuant to Rule 461

June 5, 2023 EX-10.17

Amendment No. 2 to Amended and Restated Development and License Agreement, dated as of September 27, 2016, by and between Infinity Pharmaceuticals, Inc. and Intellikine LLC.

EX-10.17 Exhibit 10.17 AMENDMENT No. 2 TO AMENDED AND RESTATED DEVELOPMENT AND LICENSE AGREEMENT This Amendment No. 2 to Amended and Restated Development and License Agreement (the “Amendment No. 2”) is made as of this 27 th day of September, 2016 (the “Amendment 2 Effective Date”) by and between Intellikine LLC, a limited liability company organized and existing under the laws of the State of Del

June 5, 2023 EX-10.30

Amendment No. 1 to Infinity 2010 Stock Incentive Plan.

EX-10.30 Exhibit 10.30 AMENDMENT NO. 1 TO INFINITY PHARMACEUTICALS, INC. 2010 STOCK INCENTIVE PLAN The Infinity Pharmaceuticals, Inc. 2010 Stock Incentive Plan be and hereby is amended by deleting Sections 6(a), 6(b) and 6(c) in their entirety and replacing them with the following: * * * 6. Director Options (a) Initial Grant. Upon the commencement of service on the Board by any individual who is n

June 5, 2023 EX-10.33

Amendment No. 4 to Infinity 2010 Stock Incentive Plan.

EX-10.33 Exhibit 10.33 INFINITY PHARMACEUTICALS, INC. 2010 STOCK INCENTIVE PLAN 1. Purpose The purpose of this 2010 Stock Incentive Plan (the “Plan”) of Infinity Pharmaceuticals, Inc., a Delaware corporation (the “Company”), is to advance the interests of the Company’s stockholders by enhancing the Company’s ability to attract, retain and motivate persons who are expected to make important contrib

June 5, 2023 EX-10.15

Amended and Restated Development and License Agreement, dated as of December 24, 2012, by and between Infinity Pharmaceuticals, Inc. and Intellikine, LLC.

EX-10.15 Exhibit 10.15 Certain identified information has been excluded from the exhibit because it is both (i) not material and (ii) is the type of information that the registrant treats as private or confidential. Double asterisks denote omissions. EXECUTION VERSION December 24, 2012 AMENDED AND RESTATED DEVELOPMENT AND LICENSE AGREEMENT Between INTELLIKINE LLC and INFINITY PHARMACEUTICALS, INC.

June 5, 2023 EX-10.34

Amendment No. 5 to Infinity 2010 Stock Incentive Plan.

EX-10.34 Exhibit 10.34 INFINITY PHARMACEUTICALS, INC. 2010 STOCK INCENTIVE PLAN 1. Purpose The purpose of this 2010 Stock Incentive Plan (the “ Plan ”) of Infinity Pharmaceuticals, Inc., a Delaware corporation (the “ Company ”), is to advance the interests of the Company’s stockholders by enhancing the Company’s ability to attract, retain and motivate persons who are expected to make important con

June 5, 2023 EX-10.45

Offer Letter between Infinity Pharmaceuticals, Inc. and Stephane Peluso, Ph.D., dated July 12, 2021.

EX-10.45 Exhibit 10.45 1100 Massachusetts Ave Cambridge, MA Tel: 617-453-1000 Fax: 617-453-1001 www.infi.com July 12, 2021 Stephane Peluso, Ph.D. 38 Algonquian Drive Natick, MA 01760 Dear Stephane, On behalf of Infinity Pharmaceuticals, Inc. (the “Company”), I am pleased to offer you the position of Senior Vice President, Chief Scientific Officer reporting to Adelene Perkins, Chief Executive Offic

June 5, 2023 EX-10.21

Amended and Restated License Agreement, dated as of November 1, 2016, by and between Infinity Pharmaceuticals, Inc. and Verastem, Inc.

EX-10.21 Exhibit 10.21 CONFIDENTIAL Execution Version Confidential Materials omitted and filed separately with the Securities and Exchange Commission. Double asterisks denote omissions. AMENDED AND RESTATED LICENSE AGREEMENT BY AND BETWEEN INFINITY PHARMACEUTICALS, INC. AND VERASTEM, INC. CONFIDENTIAL LICENSE AGREEMENT This Amended and Restated License Agreement (this “Agreement”) is entered into

June 5, 2023 EX-10.42

Infinity 2019 Equity Incentive Plan.

EX-10.42 Exhibit 10.42 INFINITY PHARMACEUTICALS, Inc. 2019 EQUITY INCENTIVE PLAN 1. Purpose The purpose of this 2019 Equity and Incentive Plan (the “Plan”) of Infinity Pharmaceuticals, Inc., a Delaware corporation (the “Company”), is to advance the interests of the Company’s stockholders by enhancing the Company’s ability to attract, retain and motivate persons who are expected to make important c

June 5, 2023 EX-10.38

Form of Infinity Restricted Stock Agreement under 2010 Stock Incentive Plan.

EX-10.38 Exhibit 10.38 Form RSA INFINITY PHARMACEUTICALS, INC. RESTRICTED STOCK AGREEMENT Infinity Pharmaceuticals, Inc. (the “ Company ”) has selected you to receive the following restricted stock award pursuant to its 2010 Stock Incentive Plan, as amended. The terms and conditions attached hereto are also a part hereof . Notice of Grant Name of recipient (the “ Participant ”): [Name] Grant Date:

June 5, 2023 EX-10.29

2010 Infinity Stock Incentive Plan.

EX-10.29 Exhibit 10.29 INFINITY PHARMACEUTICALS, INC. 2010 STOCK INCENTIVE PLAN 1. Purpose The purpose of this 2010 Stock Incentive Plan (the “ Plan ”) of Infinity Pharmaceuticals, Inc., a Delaware corporation (the “ Company ”), is to advance the interests of the Company’s stockholders by enhancing the Company’s ability to attract, retain and motivate persons who are expected to make important con

June 5, 2023 EX-10.44

2019 Equity Incentive Plan of Infinity Pharmaceuticals, Inc., as amended by Amendment No. 1 and No. 2.

EX-10.44 Exhibit 10.44 INFINITY PHARMACEUTICALS, Inc. 2019 EQUITY INCENTIVE PLAN 1. Purpose The purpose of this 2019 Equity and Incentive Plan (the “Plan”) of Infinity Pharmaceuticals, Inc., a Delaware corporation (the “Company”), is to advance the interests of the Company’s stockholders by enhancing the Company’s ability to attract, retain and motivate persons who are expected to make important c

June 5, 2023 EX-10.51

Retention and Severance Protection Agreement between Infinity Pharmaceuticals, Inc. and Adelene Perkins dated as of February 22, 2023.

EX-10.51 Exhibit 10.51 Cambridge, MA Tel: 617-453-1000 Fax: 617-453-1001 www.infi.com February 22, 2023 Adelene Perkins 1100 Massachusetts Avenue Cambridge, MA 02138 Dear Adelene: As you know, Infinity Pharmaceuticals, Inc. (“Infinity”) is entering into a merger agreement with MEI Pharma, Inc. (“MEI”) by which, if the merger is completed in accordance with its terms, Infinity will become a subsidi

June 5, 2023 EX-99.2

Form of Infinity Pharmaceuticals, Inc. Proxy Card.

EX-99.2 Exhibit 99.2 SCAN TO VIEW MATERIALS & VOTE w INFINITY PHARMACEUTICALS INC. VOTE BY INTERNET C/O AMERICAN STOCK TRANSFER & TRUST CO., LTD. Before The Meeting - Go to www.proxyvote.com or scan the QR Barcode above 6201 15TH AVE. BROOKLYN, NY 11219 Use the Internet to transmit your voting instructions and for electronic delivery of information. Vote by 11:59 P.M. Eastern Time on July 13, 2023

June 5, 2023 S-4/A

As filed with the Securities and Exchange Commission on June 2, 2023 Registration No. 333-271481 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form S-4 Amendment No. 1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

Table of Contents As filed with the Securities and Exchange Commission on June 2, 2023 Registration No.

June 2, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 May 31, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 May 31, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction (Commission (IRS Employer of incorpo

June 2, 2023 EX-10.1

CEO Employment Agreement between the Company and David Urso, dated June 2, 2023.

EX-10.1 2 d484383dex101.htm EX-10.1 Exhibit 10.1 Execution Copy 11455 El Camino Real, Suite 250 San Diego, CA 92130 (858) 369-7100 June 2, 2023 Dear David, On behalf of MEI Pharma, Inc. (“MEI”), this letter agreement (the “Agreement”) confirms the terms of your continued employment with MEI and your appointment as the President and Chief Executive Officer of MEI (“CEO”), reporting to the Board of

June 2, 2023 EX-99.1

MEI Pharma Announces Planned Departure of CEO Daniel P. Gold, Ph.D. and Appointment of David M. Urso as Successor

EX-99.1 Exhibit 99.1 MEI Pharma Announces Planned Departure of CEO Daniel P. Gold, Ph.D. and Appointment of David M. Urso as Successor SAN DIEGO, June 2, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”), a clinical-stage pharmaceutical company focused on advancing new therapies for cancer, today announced that, in connection with the Company’s previously announced succession plan, Daniel P.

June 2, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 May 31, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction (Commission (IRS Employer of incorporati

June 2, 2023 EX-10.1

CEO Employment Agreement between MEI Pharma, Inc. and David Urso, dated June 2, 2023 (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on June 2, 2023 (File No. 000-50484))

EX-10.1 Exhibit 10.1 Execution Copy 11455 El Camino Real, Suite 250 San Diego, CA 92130 (858) 369-7100 June 2, 2023 Dear David, On behalf of MEI Pharma, Inc. (“MEI”), this letter agreement (the “Agreement”) confirms the terms of your continued employment with MEI and your appointment as the President and Chief Executive Officer of MEI (“CEO”), reporting to the Board of Directors of MEI (the “Board

June 2, 2023 EX-99.1

MEI Pharma Announces Planned Departure of CEO Daniel P. Gold, Ph.D. and Appointment of David M. Urso as Successor

EX-99.1 Exhibit 99.1 MEI Pharma Announces Planned Departure of CEO Daniel P. Gold, Ph.D. and Appointment of David M. Urso as Successor SAN DIEGO, June 2, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”), a clinical-stage pharmaceutical company focused on advancing new therapies for cancer, today announced that, in connection with the Company’s previously announced succession plan, Daniel P.

June 1, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 1, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 1, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission Fi

June 1, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 1, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 June 1, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numbe

June 1, 2023 EX-99.1

MEI Pharma Board of Directors Rejects Unsolicited Proposal

EX-99.1 2 d438169dex991.htm EX-99.1 Exhibit 99.1 MEI Pharma Board of Directors Rejects Unsolicited Proposal SAN DIEGO, June 1, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) today announced that its Board of Directors (the “Board”) reviewed and rejected the unsolicited and non-binding proposal received on May 23, 2023 from a group represented by Anson Advisors Inc. and Cable Car Capital LL

May 31, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 May 30, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 May 30, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission Fi

May 31, 2023 EX-99.1

MEI Pharma Confirms Receipt of Unsolicited Acquisition Proposal

EX-99.1 Exhibit 99.1 MEI Pharma Confirms Receipt of Unsolicited Acquisition Proposal SAN DIEGO, May 30, 2023 – MEI Pharma, Inc. (NASDAQ: MEIP) (the “Company”) today confirmed receipt of an unsolicited and non-binding proposal on May 23, 2023 from a group represented by Anson Advisors Inc. and Cable Car Capital LLC, as referenced in their 13-D filing of earlier today, to acquire all outstanding sha

May 31, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 May 30, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 May 30, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numbe

May 30, 2023 SC 13D

MEIP / MEI Pharma Inc / Anson Funds Management LP - GROUP AGREEMENT, DATED MAY 19, 2023 Activist Investment

begin 644 ex991to13d13392meip05302023.pdf M)5!$1BTQ+C8-)>+CS],-"C8S(# @;V)J#3P\+TQI;F5A7!E+UA2968O5ULQ(#,@,5T^/G-TTZ!Q(!VD F^9^!<=TW@ # !B;#B\-"F5N M9'-T%LP(# @-C$R(#=6=N0PX"! MRMKL>&=V#LVG<90 #DJ"D $H!X3O@G)!2MP\< ,'E ^A&X(*0(A0@E(@W #W M$&V]$$(.$@\@%" =?#DX8*,\S8MH'<\UO92*W'.XZ/?9T:TYCDQL2'$<"0I8 M*<9Y9O!L.I44%L]0="EF)?H4KA(51:HNG1?Y/-+FBIT?CME4WYI9OW%(KV. MB]@D><:&:3SS0[UGV2N1Y,?IQ!8WS.,]/4[@W*

May 30, 2023 EX-99.2

May 23, 2023

Exhibit 99.2 May 23, 2023 Charles V. Baltic III, Chairman MEI Pharma, Inc. 11455 El Camino Real, Suite 250 San Diego, California 92130 CONFIDENTIAL Dear Mr. Baltic: We represent holders (the “Group” or “we”) of 988,930 shares of MEI Pharma, Inc. (“MEIP” or the “Company”), comprising approximately 14.8% of the outstanding common stock of the Company. With this letter (this “Acquisition Proposal”),

May 30, 2023 SC 13D

MEIP / MEI Pharma Inc / Anson Funds Management LP - THE SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. )1 MEI Pharma Inc. (Name of Issuer) Common Stock, $0.00000002 par value (Title of Class of Securities) 55279B202 (CUSIP Number) JACOB MA-WEAVER CABLE CAR C

May 11, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 000-50484 MEI Pharma, Inc.

May 11, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 May 11, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(D) of the Securities Exchange Act of 1934 May 11, 2023 Date of report (Date of earliest event reported) MEI Pharma, Inc. (Exact name of registrant as specified in its charter) Delaware 000-50484 51-0407811 (State or other jurisdiction of incorporation) (Commission File Numbe

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