IS / ironSource Ltd - Class A - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

IS / ironSource Ltd. / Milrad Eyal - SC 13G/A Passive Investment

SC 13G/A Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1)* ironSource Ltd. (Name of Issuer) Class A Ordinary Shares (Title of Class of Securities) M5R75Y101 (CUSIP

IS / ironSource Ltd. / Bar-Zeev Tomer - SC 13G/A Passive Investment

SC 13G/A 1 d414286dsc13ga.htm SC 13G/A Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1)* ironSource Ltd. (Name of Issuer) Class A Ordinary Shares (Title of Class o

IS / ironSource Ltd. / Milrad Itay - SC 13G/A Passive Investment

SC 13G/A 1 d448854dsc13ga.htm SC 13G/A Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1)* ironSource Ltd. (Name of Issuer) Class A Ordinary Shares (Title of Class o

IS / ironSource Ltd. / Milrad Roi - SC 13G/A Passive Investment

SC 13G/A 1 d408125dsc13ga.htm SC 13G/A Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1)* ironSource Ltd. (Name of Issuer) Class A Ordinary Shares (Title of Class o

IS / ironSource Ltd. / Viola Ventures III, L.P. - SC 13G/A Passive Investment

SC 13G/A 1 zk2329167.htm SC 13G/A SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2 (Amendment No. 1)* ironSource Ltd. (Name of Issuer) Class A Ordinary Shares, no par value per share (Title of Class of Securities) M5R75Y

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

15-12G 1 d399173d1512g.htm 15-12G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 001-40539 ironSource Ltd. (Exact name of

IS / ironSource Ltd. / Cvc Capital Partners Vii(a) L.p. - SC 13G/A Passive Investment

Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to ? 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to ? 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1)* ironSource Ltd. (Name of Issuer) Class A ordinary shares (Title of Class of Securities) M5R75Y101 (CUSIP Number)

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on November 18, 2022, pursuant to the provisions of Rule 12d2-2 (a).

As filed with the Securities and Exchange Commission on November 7, 2022.

POS AM As filed with the Securities and Exchange Commission on November 7, 2022. Registration No. 333-258223 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 3 to FORM F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ironSource Ltd. (Exact Name of Registrant as Specified in its Charter) State of Israel 7374 Not Applicable (State or Oth

As filed with the United States Securities and Exchange Commission on November 7, 2022

S-8 POS 1 d413591ds8pos.htm S-8 POS As filed with the United States Securities and Exchange Commission on November 7, 2022 Registration Nos. 333-264007 333-258690 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO: Form S-8 Registration Statement No. 333-264007 and Form S-8 Registration Statement No. 333-258690 REGISTRATION STATEMENT UNDER THE

Unity Completes Merger with ironSource Transformational Deal Positions Unity as Leading End-to-End Platform for Developers to Build, Run, and Grow Mobile Games and Real-Time 3D Content

Exhibit 99.1 Unity Completes Merger with ironSource Transformational Deal Positions Unity as Leading End-to-End Platform for Developers to Build, Run, and Grow Mobile Games and Real-Time 3D Content SAN FRANCISCO, CA ? November 7, 2022 ? Unity (NYSE: U) today announced that it has completed its merger with ironSource, becoming the industry?s leading end-to-end platform for mobile app creators. The

As filed with the United States Securities and Exchange Commission on November 7, 2022

As filed with the United States Securities and Exchange Commission on November 7, 2022 Registration Nos.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November 2022 Commission File Number 001- 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of November 2022 Commission File Number 001- 40539 ironSource Ltd. (Translation of Registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel (Address of principal executiv

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October 2022 Commission File Number 001- 40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of October 2022 Commission File Number 001- 40539 ironSource Ltd. (Translation of Registrant’s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel (Address of principal executive

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 21, 2022 UNITY SOFTWARE

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 21, 2022 UNITY SOFTWARE INC. (Exact name of registrant as specified in its charter) Delaware 001-39497 27-0334803 (State or other jurisdiction of incorporation) (Commission

Filed by Unity Software Inc.

Filed by Unity Software Inc. pursuant to Rule 425 under the U.S. Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: ironSource Ltd. Commission File No.: 001-40539 On September 12, 2022, Unity Software Inc. (the ?Company?) sent the following email to all employees regarding the announcement by AppLovin

Filed by ironSource Ltd.

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Unity Software Commission File No.: 001- 39497 The following email was sent to all ironSource employees by Tomer Bar-Zeev Chairman and Chief Executive Officer of ironSource on September 13, 2022. Dear All, A quick but important update: Last night AppLovin announced that it would not pursue a deal with U

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September 2022 Commission File Number 001-

6-K 1 tm2225429d26k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September 2022 Commission File Number 001- 40539 ironSource Ltd. (Translation of Registrant’s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Isr

Consent of Morgan Stanley & Co. LLC

Exhibit 99.4 Consent of Morgan Stanley & Co. LLC We hereby consent to the use in the Joint Proxy Statement/Prospectus of Unity Software and ironSource Ltd. (?IronSource?), which is included as an Exhibit to the Current Report on Form 6-K furnished by IronSource, of our written opinion dated July 12, 2022 appearing as Annex B to such Joint Proxy Statement/Prospectus, and to the description of such

JOINT LETTER TO STOCKHOLDERS OF UNITY SOFTWARE INC. AND SHAREHOLDERS OF IRONSOURCE LTD.

Exhibit 99.1 ? JOINT LETTER TO STOCKHOLDERS OF UNITY SOFTWARE INC. AND SHAREHOLDERS OF IRONSOURCE LTD. Dear Unity Stockholders and ironSource Shareholders: On July 13, 2022, Unity Software Inc., which is referred to as ?Unity,? Ursa Aroma Merger Subsidiary Ltd., a direct wholly owned subsidiary of Unity, which is referred to as ?Merger Sub,? and ironSource Ltd., which is referred to as ?ironSource

September 8, 2022

Exhibit 99.5 September 8, 2022 The Board of Directors ironSource Ltd. 121 Menachem Begin Street Tel Aviv 6701203, Israel Board of Directors: We hereby consent to the inclusion of our opinion letter, dated July 11, 2022, to the Board of Directors (in its capacity as such) of ironSource Ltd. (?ironSource?) included as Annex C to, and to the reference to such opinion letter under the captions ?SUMMAR

IRONSOURCE LTD. (THE “COMPANY”) THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS

Exhibit 99.2 IRONSOURCE LTD. (THE ?COMPANY?) PROXY THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS I, the undersigned, shareholder of ironSource Ltd. (the ?Company?), hereby nominate, constitute and appoint Mr. Tom Zuckerberg, Company's Deputy General Counsel and Ms. Gilat Abraham, Company's Head of Securities and Corporate Lawyer, and each of them, as my true and lawful proxy and attorney(s) wi

Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm

Exhibit 99.3 Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm We consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-264007 and No. 333-258690) of ironSource Ltd. of our reports dated February 22, 2022 with respect to the consolidated financial statements of Unity Software Inc., and the effectiveness of internal control over fina

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September 2022 Commission File Number 001-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September 2022 Commission File Number 001- 40539 ironSource Ltd. (Translation of Registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel (Address of principal executi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September 2022 Commission File Number 001-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of September 2022 Commission File Number 001- 40539 ironSource Ltd. (Translation of Registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel (Address of principal executi

IRONSOURCE LTD. 121 Menachem Begin Street, Tel Aviv 6701203, Israel September 29, 2022 NOTICE OF SPECIAL GENERAL MEETING OF SHAREHOLDERS (AT WHICH THE CLASS AND COMBINED MEETINGS DESCRIBED BELOW WILL TAKE PLACE) TO BE HELD ON OCTOBER 3, 2022

Exhibit 99.1 IRONSOURCE LTD. 121 Menachem Begin Street, Tel Aviv 6701203, Israel September 29, 2022 NOTICE OF SPECIAL GENERAL MEETING OF SHAREHOLDERS (AT WHICH THE CLASS AND COMBINED MEETINGS DESCRIBED BELOW WILL TAKE PLACE) TO BE HELD ON OCTOBER 3, 2022 To the shareholders of ironSource Ltd.: NOTICE IS HEREBY GIVEN that a special general meeting of shareholders, (which we refer to as the ?ironSou

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August 2022 Commission File Number 001- 405

6-K 1 tm2224710d16k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August 2022 Commission File Number 001- 40539 ironSource Ltd. (Translation of Registrant’s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel

Six Months Ended

Exhibit 99.2 Operating and Financial Review and Prospects You should read the following discussion together with the unaudited condensed consolidated financial statements as of and for the six months ended June 30, 2022 and 2021 and related notes appearing elsewhere in this Form 6-K, our audited consolidated financial statements and other financial information as of and for the year ended December

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August 2022 Commission File Number 001- 405

? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of August 2022 Commission File Number 001- 40539 ironSource Ltd. (Translation of Registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel (Address of principal exec

IRONSOURCE LTD. CONDENSED CONSOLIDATED FINANCIAL STATEMENTS JUNE 30, 2022

Table of Contents ? Exhibit 99.1 IRONSOURCE LTD. CONDENSED CONSOLIDATED FINANCIAL STATEMENTS JUNE 30, 2022 (UNAUDITED) ? ? Table of Contents ? IRONSOURCE LTD. CONDENSED CONSOLIDATED FINANCIAL STATEMENTS JUNE 30, 2022 (UNAUDITED) TABLE OF CONTENTS ? Page ? ? ? Unaudited Condensed Consolidated Financial Statements: ? ? Condensed Consolidated Balance Sheets ? 2-3 Condensed Consolidated Statements of

JOINT FILING AGREEMENT

Exhibit 99 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that they are jointly filing this statement on Schedule 13G.

IS / ironSource Ltd. / Cvc Capital Partners Vii(a) L.p. - SC 13G Passive Investment

SC 13G Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )* ironSource Ltd. (Name of Issuer) Class A ordinary shares (Title of Class of Securities) M5R75Y101 (CUSIP Nu

ironSource Comments on Unity Board’s Rejection of Unilateral, Non-Binding Proposal by AppLovin ironSource believes combination of Unity and ironSource is in best interests of both companies’ shareholders Board of Directors of ironSource continues to

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Unity Software Commission File No.: 001-39497 ironSource Comments on Unity Board?s Rejection of Unilateral, Non-Binding Proposal by AppLovin ironSource believes combination of Unity and ironSource is in best interests of both companies? shareholders Board of Directors of ironSource continues to recommen

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 15, 2022 UNITY SOFTWARE IN

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 15, 2022 UNITY SOFTWARE INC. (Exact name of registrant as specified in its charter) Delaware 001-39497 27-0334803 (State or other jurisdiction of incorporation) (Commission Fil

Email to Customers and Partners

Filed by Unity Software Inc. pursuant to Rule 425 under the U.S. Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: ironSource Ltd. Commission File No.: 001-40539 On August 15, 2022, Unity Software Inc. (the ?Company?) sent the following email to all employees regarding the unsolicited proposal from Ap

Filed by ironSource Ltd.

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Unity Software Commission File No.: 001-39497 The following email was sent to all ironSource employees by Tomer Bar-Zeev Chairman and Chief Executive Officer of ironSource on August 15, 2022. Dear All, I wanted to update you on our planned merger with Unity. As we discussed in the All Hands last week, A

ironSource Announces Second Quarter 2022 Results Revenue of $183 million, 35% year-over-year growth Adjusted EBITDA of $56 million, 31% Adjusted EBITDA margin Dollar-based net expansion rate of 142%

Exhibit 99.1 ironSource Announces Second Quarter 2022 Results Revenue of $183 million, 35% year-over-year growth Adjusted EBITDA of $56 million, 31% Adjusted EBITDA margin Dollar-based net expansion rate of 142% TEL AVIV, Israel, August 10, 2022 ? ironSource (NYSE: IS) (?ironSource? or the ?Company?), a leading business platform for the App Economy, today announced financial results for the three

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Table of Contents Filed by Unity Software Inc. pursuant to Rule 425 under the U.S. Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: ironSource Ltd. Commission File No.: 001-40539 The following is a transcript of Unity Software Inc.?s conference call regarding Second Quarter 2022 Earnings: Unity Softw

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2022 Commission file number: 001-405

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2022 Commission file number: 001-40539 ironSource Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel (Address of principal executive

Filed by Unity Software Inc.

Filed by Unity Software Inc. pursuant to Rule 425 under the U.S. Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: ironSource Ltd. Commission File No.: 001-40539 On August 9, 2022, the following email was sent to all Unity Software Inc. (?Unity?) employees by John Riccitiello, Unity?s Chief Executive

Filed by ironSource Ltd.

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Unity Software Commission File No.: 001-39497 The following email was sent to all ironSource employees by Tomer Bar-Zeev Chairman and Chief Executive Officer of ironSource on August 9, 2022 Hi All, You might have seen a press release just issued by Applovin detailing their offer to buy Unity. We wanted

Filed by Unity Software Inc.

425 1 d240385d425.htm 425 Filed by Unity Software Inc. pursuant to Rule 425 under the U.S. Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: ironSource Ltd. Commission File No.: 001-40539 On July 27, 2022, Unity Software Inc. (the “Company”) provided the following “Q&A” to employees with regard to the

NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS To be Held at 4:00 p.m. (Israel time) on Thursday, September 1, 2022

Exhibit 99.1 NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS To be Held at 4:00 p.m. (Israel time) on Thursday, September 1, 2022 Dear ironSource Ltd. Shareholders: We cordially invite you to attend the Annual General Meeting of shareholders (the ?Annual Meeting?) of ironSource Ltd. (the ?Company?), to be held on September 1, 2022 at 4:00 p.m. (Israel time), at our headquarters at 121 Menachem Be

IRONSOURCE LTD. (THE “COMPANY”) THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS

Exhibit 99.2 IRONSOURCE LTD. (THE ?COMPANY?) PROXY THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS I, the undersigned, shareholder of ironSource Ltd. (the ?Company?), hereby nominate, constitute and appoint Mr. Tomer Bar-Zeev, and Mr. Assaf Ben Ami, and each of them, as my true and lawful proxy and attorney(s) with full power of substitution for me and in my name, place and stead, to represent a

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of July 2022 Commission File Number 001- 40539

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of July 2022 Commission File Number 001- 40539 ironSource Ltd. (Translation of Registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel (Address of principal executive of

Filed by ironSource Ltd.

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: ironSource Ltd. Commission File No.: 001-40539 The following article was published on July 22, 2022 in an Israeli newspaper which certain ironSource executives were interviewed regarding their pending merger with Unity Software. ironSource: "We struck while the iron was cold? ironSource was issued just

FORM OF COMPANY SHAREHOLDER VOTING AGREEMENT

Exhibit 99.2 FORM OF COMPANY SHAREHOLDER VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 13, 2022, by and among Unity Software Inc., a Delaware corporation (?Parent?), and [?] (the ?Shareholder?). Parent and the Shareholder are each sometimes referred to herein as a ?Party? and collectively as the ?Parties?. RECITALS WHEREAS, concurrently with the exec

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of July 2022 Commission File Number 001- 40539

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of July 2022 Commission File Number 001- 40539 ironSource Ltd. (Translation of Registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel (Address of principal executive of

AGREEMENT AND PLAN OF MERGER by and among Unity Software Inc., Ursa Aroma Merger Subsidiary Ltd., ironSource Ltd. dated as of July 13, 2022 TABLE OF CONTENTS

Exhibit 99.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among Unity Software Inc., Ursa Aroma Merger Subsidiary Ltd., and ironSource Ltd. dated as of July 13, 2022 TABLE OF CONTENTS Page Article I THE MERGER 3 Section 1.1. The Merger 3 Section 1.2. Effect of the Merger 3 Section 1.3. The Closing 3 Section 1.4. Effective Time 3 Section 1.5. Governing Documents 4 Section 1.6. Officers and

FORM OF COMPANY SHAREHOLDER VOTING AGREEMENT

Exhibit 99.3 FORM OF COMPANY SHAREHOLDER VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 13, 2022, by and among Unity Software Inc., a Delaware corporation (?Parent?), and [?] (the ?Shareholder?). Parent and the Shareholder are each sometimes referred to herein as a ?Party? and collectively as the ?Parties?. RECITALS WHEREAS, concurrently with the exec

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 13, 2022 UNITY SOFTWARE 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): July 13, 2022 UNITY SOFTWARE INC. (Exact name of registrant as specified in its charter) Delaware 001-39497 27-0334803 (State or other jurisdiction of incorporation) (Commission File

Internal FAQs

Filed by Unity Software Inc. pursuant to Rule 425 under the U.S. Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: ironSource Ltd. Commission File No.: 001-40539 The following communications are being filed in connection with Unity Software Inc.?s merger with ironSource Ltd.: Internal FAQs GENERAL DEA

2 0 2 2 UNITY INVESTOR RELATIONS Safe Harbor 3 Non-GAAP Financial Measures This presentation includes non-GAAP financial measures, including Adjusted EBITDA of Unity and Non-GAAP Net Income, Adjusted EBITDA and Adjusted EBITDA Margin of ironSource. T

Exhibit 99.2 2 0 2 2 UNITY INVESTOR RELATIONS Safe Harbor 2 Cautionary Statement Regarding Forward-Looking Statements This presentation includes forward-looking statements. These forward-looking statements generally can be identified by phrases such as ?will,? ?expects,? ?anticipates,? ?foresees,? ?forecasts,? ?estimates? or other words or phrases of similar import. These statements are based on c

Internal FAQs

Filed by Unity Software Inc. pursuant to Rule 425 under the U.S. Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: ironSource Ltd. Commission File No.: 001-40539 On July 13, 2022, Unity Software Inc. (the ?Company?) made the following blog post by Marc Whitten, the Company?s Senior Vice President and

Filed by ironSource Ltd.

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: ironSource Ltd. Commission File No.: 001-40539 This filing relates to the proposed merger of ironSource Ltd., a company organized under the laws of the State of Israel (?ironSource?), with Ursa Aroma Merger Subsidiary LTD (?Merger Sub?), a company organized under the laws of the State of Israel and a di

Unity Announces Merger Agreement with ironSource – Transformative combination forms the industry’s first end-to-end platform to power creators’ success as they build, run, manage, grow, and monetize live games and real-time, 3D content –

Exhibit 99.1 Unity Announces Merger Agreement with ironSource ? Transformative combination forms the industry?s first end-to-end platform to power creators? success as they build, run, manage, grow, and monetize live games and real-time, 3D content ? ? Highly accretive merger is expected to deliver a run rate of $1 billion in Adjusted EBITDA by the end of 2024, and $300 million in annual EBITDA sy

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of July 2022 Commission File Number 001- 40539

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For the month of July 2022 Commission File Number 001- 40539 ironSource Ltd. (Translation of Registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel (Address of principal executive of

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 13, 2022 UNITY SOFTWARE 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): July 13, 2022 UNITY SOFTWARE INC. (Exact name of registrant as specified in its charter) Delaware 001-39497 27-0334803 (State or other jurisdiction of incorporation) (Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission file number: 001-40539

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission file number: 001-40539 ironSource Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel (Address of principal executive off

ironSource Announces Record First Quarter 2022 Results Record Revenue of $190 million, 58% year-over-year growth Record Adjusted EBITDA of $59 million, 31% Adjusted EBITDA margin Dollar-based net expansion rate of 153%

Exhibit 99.1 ironSource Announces Record First Quarter 2022 Results Record Revenue of $190 million, 58% year-over-year growth Record Adjusted EBITDA of $59 million, 31% Adjusted EBITDA margin Dollar-based net expansion rate of 153% TEL AVIV, Israel, May 12, 2022 ? ironSource (NYSE: IS) (?ironSource? or the ?Company?), a leading business platform for the App Economy, today announced financial resul

ironSource Ltd. 72,661,102 CLASS A ORDINARY SHARES

Filed pursuant to Rule 424(b)(3) SEC File No. 333-258223 PROSPECTUS SUPPLEMENT NO. 1 (to Prospectus dated April 12, 2022) ironSource Ltd. 72,661,102 CLASS A ORDINARY SHARES This prospectus supplement updates, amends and supplements the prospectus contained in our Post-Effective Amendment No. 2 to our Registration Statement on Form F-1, effective as of April 11, 2022 (as supplemented or amended fro

PROSPECTUS ironSource Ltd. 72,661,102 CLASS A ORDINARY SHARES

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(3)? ?Registration No. 333-258223? PROSPECTUS ironSource Ltd. 72,661,102 CLASS A ORDINARY SHARES ? This prospectus relates to the resale, from time to time, by the selling shareholders named herein (the ?Selling Securityholders?), or their pledgees, donees, transferees, or other successors in interest, of up to 72,661,102 of our Class A ordinary shar

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) ironSource Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit (2) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee 2021 Share Incentiv

As filed with the United States Securities and Exchange Commission on March 31, 2022

As filed with the United States Securities and Exchange Commission on March 31, 2022 Registration No.

Agreement and Plan of Merger by and among ironSource Sonic, Tapjoy, Inc. and other parties thereto, dated as of October 14, 2021

Exhibit 4.11 ? CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [***], HAS BEEN OMITTED BECAUSE IT IS NOT MATERIAL AND IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL. AGREEMENT AND PLAN OF MERGER ? BY AND AMONG ? IRONSOURCE SONIC, INC., ? IRONSOURCE SONIC 2021, INC., ? TAPJOY, INC. ? AND ? FORTIS ADVISORS LLC ? AS THE STOCKHOLDERS? REPRESENTATIVE ? ? ? ? DA

Principal Executive Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 CERTIFICATION ? I, Tomer Bar-Zeev, certify that: ? 1. I have reviewed this annual report on Form 20-F of ironSource Ltd. (the ?Company?); ? 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not mislead

As filed with the Securities and Exchange Commission on March 30, 2022.

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on March 30, 2022.

Description of Securities

Exhibit 2.2 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED ironSource Ltd. (the ?Company?, ?we?, ?us?, ?our? or similar expressions) has the following class of securities registered pursuant to Section 12(b) of the Exchange Act: ? ? Title of each class ? Trading Symbol(s) ? Name of each exchange on which registered Cl

Audited Consolidated Financial Statements of ironSource as of and for the year ended December 31, 2021 (incorporated by reference to ironSource’s Annual Report on Form 20-F for the year ended December 31, 2021 filed March 30, 2022)

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

ironSource Ltd. 102,869,375 CLASS A ORDINARY SHARES

Filed pursuant to Rule 424(b)(3) SEC File No. 333-258223 PROSPECTUS SUPPLEMENT NO. 4 (to Prospectus dated October 5, 2021) ironSource Ltd. 102,869,375 CLASS A ORDINARY SHARES This prospectus supplement updates, amends and supplements the prospectus contained in our Post-Effective Amendment No. 1 to our Registration Statement on Form F-1, effective as of October 4, 2021 (as supplemented or amended

Consent of Kesselman & Kesselman, Certified Public Accountants (Isr.) a member firm of PricewaterhouseCoopers International Limited, independent registered public accounting firm.

Exhibit 15.1 ? ? CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-258690) of ironSource Ltd. of our report dated March 30, 2022 relating to the financial statements, which appears in this Form 20-F. Tel Aviv, Israel /s/Kesselman & Kesselman March 30, 2022 ? Certified Public Accountants (I

Principal Executive Officer and Principal Financial Officer Certifications Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 CERTIFICATION PURSUANT 18 U.S.C. § 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of ironSource Ltd. (the “Company”) on Form 20-F for the year ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, Tomer Bar-Zeev, Chief Executive Officer of the Company, and Ass

Principal Financial Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 CERTIFICATION I, Assaf Ben Ami, certify that: 1. I have reviewed this annual report on Form 20-F of ironSource Ltd. (the “Company”); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading wit

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2022 Commission file number: 001-4053

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2022 Commission file number: 001-40539 ironSource Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel +972-747990001 (Address of princi

ironSource Ltd. 102,869,375 CLASS A ORDINARY SHARES

Filed pursuant to Rule 424(b)(3) SEC File No. 333-258223 PROSPECTUS SUPPLEMENT NO. 3 (to Prospectus dated October 5, 2021) ironSource Ltd. 102,869,375 CLASS A ORDINARY SHARES This prospectus supplement updates, amends and supplements the prospectus contained in our Post-Effective Amendment No. 1 to our Registration Statement on Form F-1, effective as of October 4, 2021 (as supplemented or amended

ironSource Announces Fourth Quarter and Full Year 2021 Financial Results Q4 Revenue of $158 million, 46% year-over-year growth Q4 Adjusted EBITDA1 of $57 million, 76% year-over-year growth; 36% Adjusted EBITDA Margin1 Full year 2021 Revenue of $553 m

Exhibit 99.1 ironSource Announces Fourth Quarter and Full Year 2021 Financial Results Q4 Revenue of $158 million, 46% year-over-year growth Q4 Adjusted EBITDA1 of $57 million, 76% year-over-year growth; 36% Adjusted EBITDA Margin1 Full year 2021 Revenue of $553 million, 67% year-over-year growth; full year Adjusted EBITDA of $194 million, 87% year-over-year growth Dollar-based net expansion rate o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2022 Commission file number: 001-4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2022 Commission file number: 001-40539 ironSource Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel +972-747990001 (Address of pri

IS / ironSource Ltd. / Milrad Eyal - SC 13G Passive Investment

Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to ? 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to ? 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )* ironSource Ltd. (Name of Issuer) Class A Ordinary Shares (Title of Class of Securities) M5R75Y101 (CUSIP Number) D

IS / ironSource Ltd. / Viola Ventures III, L.P. - SC 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO ? 240.13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO ? 240.13d-2 (Amendment No. )* ironSource Ltd. (Name of Issuer) Class A Ordinary Shares, no par value per share (Title of Class of Securities) M5R75Y 101 (CUSIP Number) December 31, 2021

IS / ironSource Ltd. / Milrad Itay - SC 13G Passive Investment

Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to ? 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to ? 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )* ironSource Ltd. (Name of Issuer) Class A Ordinary Shares (Title of Class of Securities) M5R75Y101 (CUSIP Number) D

JOINT FILING AGREEMENT

Exhibit 1 JOINT FILING AGREEMENT The undersigned parties hereby agree that this Statement on Schedule 13G filed herewith, and any amendments thereto filed hereafter by any of the undersigned parties, relating to the Class A ordinary shares, no par value (including Class A ordinary shares issuable upon conversion of Class B ordinary shares, no par value), of ironSource Ltd.

IS / ironSource Ltd. / Milrad Roi - SC 13G Passive Investment

Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to ? 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to ? 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )* ironSource Ltd. (Name of Issuer) Class A Ordinary Shares (Title of Class of Securities) M5R75Y101 (CUSIP Number) D

IS / ironSource Ltd. / Bar-Zeev Tomer - SC 13G Passive Investment

Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to ? 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to ? 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )* ironSource Ltd. (Name of Issuer) Class A Ordinary Shares (Title of Class of Securities) M5R75Y101 (CUSIP Number) D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2021 Commission file number: 001-4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2021 Commission file number: 001-40539 ironSource Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel +972-747990001 (Address of pri

ironSource Announces Record Third Quarter 2021 Results Record Revenue of $140 million, 60% year-over-year growth Record Adjusted EBITDA of $51 million, 36% Adjusted EBITDA margin Dollar-based net expansion rate of 170% Raised full year 2021 revenue o

Exhibit 99.1 ironSource Announces Record Third Quarter 2021 Results Record Revenue of $140 million, 60% year-over-year growth Record Adjusted EBITDA of $51 million, 36% Adjusted EBITDA margin Dollar-based net expansion rate of 170% Raised full year 2021 revenue outlook to $535-$540 million Announced entry into definitive agreements to acquire Tapjoy and Bidalgo to further expand ironSource platfor

ironSource Ltd. 102,869,375 CLASS A ORDINARY SHARES

Filed pursuant to Rule 424(b)(3) SEC File No. 333-258223 PROSPECTUS SUPPLEMENT NO. 2 (to Prospectus dated October 5, 2021) ironSource Ltd. 102,869,375 CLASS A ORDINARY SHARES This prospectus supplement updates, amends and supplements the prospectus contained in our Post-Effective Amendment No. 1 to our Registration Statement on Form F-1, effective as of October 4, 2021 (as supplemented or amended

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission file number: 001-40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission file number: 001-40539 ironSource Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel +972-747990001 (Address of prin

ironSource Ltd. 102,869,375 CLASS A ORDINARY SHARES

Filed pursuant to Rule 424(b)(3) SEC File No. 333-258223 PROSPECTUS SUPPLEMENT NO. 1 (to Prospectus dated October 5, 2021) ironSource Ltd. 102,869,375 CLASS A ORDINARY SHARES This prospectus supplement updates, amends and supplements the prospectus contained in our Post-Effective Amendment No. 1 to our Registration Statement on Form F-1, effective as of October 4, 2021 (as supplemented or amended

ironSource to acquire mobile advertising and app monetization company Tapjoy

Exhibit 99.1 Press Release ironSource to acquire mobile advertising and app monetization company Tapjoy Acquisition is expected to strengthen ironSource?s platform offering for app developers, and is intended to further expand its customer base in games and apps beyond games TEL AVIV, Israel, October 14th, 2021 ? ironSource (NYSE: IS) (?ironSource? or the ?Company?) a leading business platform for

Prospectus ironSource Ltd. 102,869,375 CLASS A ORDINARY SHARES

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-258223 Prospectus ironSource Ltd. 102,869,375 CLASS A ORDINARY SHARES This prospectus relates to the resale, from time to time, by the selling shareholders named herein (the ?Selling Securityholders?), or their pledgees, donees, transferees, or other successors in interest, of up to 102,869,375 of our Class A ordinary shares,

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Exhibit 99.2 MANAGEMENT?S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the consolidated financial statements and related notes included as Exhibit 99.1 to this Form 6-K. On December 31, 2020, we completed the spin-off of the assets of our Desktop

As filed with the Securities and Exchange Commission on September 29, 2021.

Table of Contents As filed with the Securities and Exchange Commission on September 29, 2021.

IRONSOURCE LTD. CONDENSED CONSOLIDATED BALANCE SHEETS (U.S. dollars in thousands, except for number of shares and par value) June 30, December 31, 2021 2020 Assets Current assets: Cash and cash equivalents $ 706,797 $ 200,672 Short-term deposits — 17

Exhibit 99.1 IRONSOURCE LTD. CONDENSED CONSOLIDATED BALANCE SHEETS (U.S. dollars in thousands, except for number of shares and par value) (Unaudited) June 30, December 31, 2021 2020 Assets Current assets: Cash and cash equivalents $ 706,797 $ 200,672 Short-term deposits ? 17,627 Accounts receivable, net of allowances of $793 and $724 as of June 30, 2021 and December 31, 2020, respectively 186,844

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2021 Commission file number: 001-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2021 Commission file number: 001-40539 ironSource Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel +972-747990001 (Address of pr

ironSource Ltd. Employee Share Purchase Plan

Exhibit 10.7 IRONSOURCE LTD. 2021 EMPLOYEE SHARE PURCHASE PLAN ARTICLE I. PURPOSE The purpose of this Plan is to assist Eligible Employees of the Company and its Designated Subsidiaries in acquiring a share ownership interest in the Company. The Plan consists of two components: (i) the Section 423 Component and (ii) the Non-Section 423 Component. The Section 423 Component is intended to qualify as

ironSource Ltd. 133,254,045 CLASS A ORDINARY SHARES

Filed pursuant to Rule 424(b)(3) SEC File No. 333-258223 PROSPECTUS SUPPLEMENT NO. 1 (to Prospectus dated August 10, 2021) ironSource Ltd. 133,254,045 CLASS A ORDINARY SHARES This prospectus supplement updates, amends and supplements the prospectus dated August 10, 2021 (as supplemented or amended from time to time, the “Prospectus”), which forms a part of our Registration Statement on Form F-1 (R

ironSource Announces Record Second Quarter 2021 Results Record Revenue of $135 million, 83% year-over-year growth Record Adjusted EBITDA of $46 million, 34% Adjusted EBITDA margin Dollar-based net expansion rate of 181% Raised full year 2021 revenue

Exhibit 99.1 ironSource Announces Record Second Quarter 2021 Results Record Revenue of $135 million, 83% year-over-year growth Record Adjusted EBITDA of $46 million, 34% Adjusted EBITDA margin Dollar-based net expansion rate of 181% Raised full year 2021 revenue outlook to $510-$520 million Completed Merger with Thoma Bravo Advantage and became a public company on the NYSE TEL AVIV, Israel?(BUSINE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2021 Commission file number: 001-405

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2021 Commission file number: 001-40539 ironSource Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Street Tel Aviv 6701203, Israel +972-747990001 (Address of princ

PROSPECTUS ironSource Ltd. 133,254,045 CLASS A ORDINARY SHARES

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-258223 PROSPECTUS ironSource Ltd. 133,254,045 CLASS A ORDINARY SHARES This prospectus relates to the resale, from time to time, by the selling shareholders named herein (the ?Selling Securityholders?), or their pledgees, donees, transferees, or other successors in interest, of up to 133,254,045 of our Class A ordinary shares,

Form S-8 (File No. 333-258690)

S-8 1 d188102ds8.htm S-8 As filed with the Securities and Exchange Commission on August 10, 2021 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ironSource Ltd. (Exact name of registrant as specified in its charter) Israel Not Applicable (State or Other Jurisdiction of (I.R.S. Employer In

ironSource Ltd. 121 Menachem Begin Street Tel Aviv 6701203, Israel

ironSource Ltd. 121 Menachem Begin Street Tel Aviv 6701203, Israel +972-747990001 August 6, 2021 VIA EDGAR AND E-MAIL United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549-6010 Attention: Jeff Kauten Jan Woo Melissa Kindelan Christine Dietz Re: ironSource Ltd. Registration Statement on Form F-1 (File No. 333-258223) Ladies and Ge

Articles of Association of the Registrant (incorporated by reference to Exhibit 3.1 to the Registrant’s Registration Statement on Form F-1 (Commission File No. 333-258223), filed with the Commission on July 28, 2021)

Exhibit 3.1 THE COMPANIES LAW, 1999 A LIMITED LIABILITY COMPANY AMENDED AND RESTATED ARTICLES OF ASSOCIATION OF IRONSOURCE LTD. PRELIMINARY 1. DEFINITIONS; INTERPRETATION. (a) In these Articles, the following terms (whether or not capitalized) shall bear the meanings set forth opposite them, respectively, unless the subject or context requires otherwise. ?Articles? shall mean these Articles of Ass

Form F-1

Table of Contents As filed with the Securities and Exchange Commission on July 28, 2021.

ironSource, A Leading Business Platform for the App Economy, Successfully Closes Its Business Combination with Thoma Bravo Advantage Combined Company to Commence Trading on the New York Stock Exchange Under “IS” Ticker on June 29, 2021

Exhibit 99.3 ironSource, A Leading Business Platform for the App Economy, Successfully Closes Its Business Combination with Thoma Bravo Advantage Combined Company to Commence Trading on the New York Stock Exchange Under ?IS? Ticker on June 29, 2021 TEL AVIV, Israel, and SAN FRANCISCO, June 28, 2021 ? ironSource, a leading business platform that enables mobile content creators to prosper within the

CREDIT AGREEMENT Dated as of June 29, 2021 IRONSOURCE LTD, as the Borrower, THE SUBSIDIARIES OF THE BORROWER PARTY HERETO, as the Guarantors, SILICON VALLEY BANK, as the Administrative Agent and an L/C Issuer, THE OTHER LENDERS AND L/C ISSUERS PARTY

Exhibit 99.1 CREDIT AGREEMENT Dated as of June 29, 2021 among IRONSOURCE LTD, as the Borrower, THE SUBSIDIARIES OF THE BORROWER PARTY HERETO, as the Guarantors, SILICON VALLEY BANK, as the Administrative Agent and an L/C Issuer, and THE OTHER LENDERS AND L/C ISSUERS PARTY HERETO SILICON VALLEY BANK, as Lead Arranger and Bookrunner TABLE OF CONTENTS Page ARTICLE I. DEFINITIONS AND ACCOUNTING TERMS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13A-16 OR 15D-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2021 Commission File Number: 001-40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13A-16 OR 15D-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2021 Commission File Number: 001-40539 ironSource Ltd. (Exact Name of Registrant as Specified in Its Charter) 121 Menachem Begin Street Tel Aviv 6701203, Israel +972-747990001 (Address

INDEMNIFICATION AGREEMENT

EX-99.2 4 d187918dex992.htm EX-99.2 Exhibit 99.2 INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (the “Agreement”), dated as of , 2021, is entered into by and between ironSource Ltd., an Israeli company whose address is 121 Menachem Begin Street, Tel Aviv 6701203, Israel (the “Company”), and the undersigned Director or Officer of the Company whose name appears on the signature page hereto

Amended and Restated Articles of Association of ironSource Ltd.

Exhibit 1.1 THE COMPANIES LAW, 1999 A LIMITED LIABILITY COMPANY AMENDED AND RESTATED ARTICLES OF ASSOCIATION OF IRONSOURCE LTD. As Adopted on , 2021 PRELIMINARY 1. DEFINITIONS; INTERPRETATION. (a) In these Articles, the following terms (whether or not capitalized) shall bear the meanings set forth opposite them, respectively, unless the subject or context requires otherwise. ?Articles? shall mean

Form 8-A

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 ironSource Ltd. (Exact name of registrant as specified in its charter) State of Israel Not Applicable (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification

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 16, 2021 Thoma Bravo Advanta

425 1 d154842d8k.htm 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): June 16, 2021 Thoma Bravo Advantage (Exact name of registrant as specified in its charter) Cayman Islands 001-39889 98-1566321 (State or other jurisdiction of

Thoma Bravo Advantage Recommends Shareholders Vote in Favor of the Proposed Business Combination with ironSource Extraordinary General Meeting to Approve Business Combination is Scheduled for Tuesday, June 22, 2021 at 10:00 am ET Holders of TBA’s Cla

Filed by Thoma Bravo Advantage Pursuant to Rule 14a-12 under the Securities Act of 1934 and deemed filed pursuant to Rule 425 under the Securities Exchange Act of 1933 Subject Company: ironSource Ltd.

Thoma Bravo Affirms Commitment to Purchase up to $250 Million of ironSource Shares to the Extent Made Available by Redemptions

Filed by Thoma Bravo Advantage Pursuant to Rule 14a-12 under the Securities Act of 1934 and deemed filed pursuant to Rule 425 under the Securities Exchange Act of 1933 Subject Company: ironSource Ltd.

Investor Presentation June 10, 2021 Filed by Thoma Bravo Advantage Pursuant to Rule 14a-12 under the Securities Act of 1934 and deemed filed pursuant to Rule 425 under the Securities Exchange Act of 1933 Subject Company: ironSource Ltd. Commission Fi

Investor Presentation June 10, 2021 Filed by Thoma Bravo Advantage Pursuant to Rule 14a-12 under the Securities Act of 1934 and deemed filed pursuant to Rule 425 under the Securities Exchange Act of 1933 Subject Company: ironSource Ltd.

Thoma Bravo Advantage Reminds Shareholders of June 22, 2021 Extraordinary General Meeting to Approve Business Combination with ironSource

Filed by Thoma Bravo Advantage Pursuant to Rule 14a-12 under the Securities Act of 1934 and deemed filed pursuant to Rule 425 under the Securities Exchange Act of 1933 Subject Company: ironSource Ltd.

Filed by ironSource Ltd.

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: May 25, 2021 A leading business platform empowering content creators to prosper in the app economy COMPANY PRESENTATION MAY 2021 Disclaimer About this Presentatio

PROXY STATEMENT/PROSPECTUS PROXY STATEMENT FOR EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS OF THOMA BRAVO ADVANTAGE PROSPECTUS FOR UP TO 127,400,000 CLASS A ORDINARY SHARES IRONSOURCE LTD.

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-254790 PROXY STATEMENT/PROSPECTUS PROXY STATEMENT FOR EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS OF THOMA BRAVO ADVANTAGE PROSPECTUS FOR UP TO 127,400,000 CLASS A ORDINARY SHARES OF IRONSOURCE LTD. The board of directors of Thoma Bravo Advantage, a Cayman Islands exempted company (?TBA?), has unanimously approved the Agreem

ironSource Announces Second Quarter 2021 Guidance and Updated 2021 Guidance Company increases revenue and EBITDA outlook for fiscal year 2021

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: May 19, 2021 ironSource Announces Second Quarter 2021 Guidance and Updated 2021 Guidance Company increases revenue and EBITDA outlook for fiscal year 2021 TEL AVI

ironSource Ltd. 121 Menachem Begin Street Tel Aviv 6701203, Israel

ironSource Ltd. 121 Menachem Begin Street Tel Aviv 6701203, Israel +972-747990001 May 17, 2021 VIA EDGAR AND E-MAIL United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549-6010 Attention: Jeff Kauten Jan Woo Melissa Kindelan Christine Dietz Re: ironSource Ltd. Registration Statement on Form F-4 (File No. 333-254790) Ladies and Gent

TBA – QA May 11, 2021

Filed by Thoma Bravo Advantage Pursuant to Rule 14a-12 under the Securities Act of 1934 and deemed filed pursuant to Rule 425 under the Securities Exchange Act of 1933 Subject Company: ironSource Ltd.

Consent of Yehoshua Nir (Director Nominee).

Exhibit 99.3 Consent of Director Nominee ironSource Ltd. is filing a Proxy Statement / Prospectus on Form F-4 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the ?Securities Act?), in connection with the proposed business combination between ironSource Ltd. and Thoma Bravo Advantage. In connection therewith, I hereby consent, pursuant to Rule 438 of the Se

Consent of Marni Walden (Director Nominee).

Exhibit 99.4 Consent of Director Nominee ironSource Ltd. is filing a Proxy Statement / Prospectus on Form F-4 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the ?Securities Act?), in connection with the proposed business combination between ironSource Ltd. and Thoma Bravo Advantage. In connection therewith, I hereby consent, pursuant to Rule 438 of the Se

Credit Agreement, dated as of June 29, 2021, by and among ironSource, certain of its subsidiaries, Silicon Valley Bank and other lenders and L/C issuers party thereto.

Exhibit 10.11 Execution Version CREDIT AGREEMENT Dated as of [ ], 2021 among IRONSOURCE LTD, as the Borrower, THE SUBSIDIARIES OF THE BORROWER PARTY HERETO, as the Guarantors, SILICON VALLEY BANK, as the Administrative Agent and an L/C Issuer, and THE OTHER LENDERS AND L/C ISSUERS PARTY HERETO SILICON VALLEY BANK, as Lead Arranger and Bookrunner TABLE OF CONTENTS Page ARTICLE I. DEFINITIONS AND AC

ironSource Ltd. Compensation Policy

Exhibit 10.8 COMPENSATION POLICY IRONSOURCE LTD. Compensation Policy for Executive Officers and Directors A. Overview and Objectives 1. Introduction This document sets forth the Compensation Policy for Executive Officers and Directors (this ?Compensation Policy? or ?Policy?) of ironSource Ltd. (?ironSource? or the ?Company?), in accordance with the requirements of the Companies Law, 5759-1999 (the

Summary of Sub-Lease Agreement

Exhibit 10.10 Summary of Sub-Lease Agreement Note: this summary does not contain a full or direct translation of the terms of the original Hebrew-language sub-lease agreement, and is designated solely for the purpose of providing a general presentation of such agreement. On December 31, 2020, ironSource Ltd. (the ?Sub-Lessor?) and TypeA Holdings Ltd. (the ?Sub-Lessee?) entered into a sub-lease agr

Specimen Class A Ordinary Share Certificate of ironSource Ltd.

Exhibit 4.4 INCORPORATED UNDER THE LAWS OF THE STATE OF ISRAEL SEE REVERSE SIDE FOR CERTAIN DEFINITIONS CUSIP XXXXXX XX X THIS CERTIFIES THAT is the owner of FULLY PAID AND NON-ASSESSABLE CLASS A ORDINARY SHARES OF ironSource Ltd. transferable on the books of the Company by the holder hereof in person or by Attorney upon surrender of this certificate properly endorsed. This certificate and the sha

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1271 Avenue of the Americas New York, New York 10020-1401 Tel: +1.212.906.1200 Fax: +1.212.751.4864 www.lw.com FIRM / AFFILIATE OFFICES Beijing Moscow Boston Munich Brussels New York Century City Orange County Chicago Paris Dubai Riyadh D?sseldorf San Diego May 4, 2021 Frankfurt San Francisco Hamburg Seoul Hong Kong Shanghai Houston Silicon Valley London Singapore Los Angeles Tokyo Madrid Washingt

- F-4/A

Table of Contents As filed with the Securities and Exchange Commission on May 4, 2021.

Form of Investment Agreement, by and between ironSource and the subscribers party thereto.

Exhibit 10.4 Final Form FORM OF INVESTMENT AGREEMENT This INVESTMENT AGREEMENT (this ?Agreement?) is entered into on March 20, 2021 by and between ironSource Ltd., a company organized under the laws of the State of Israel (the ?Company?), and the subscriber party set forth on the signature page hereto (?Subscriber?). WHEREAS, the Company is concurrently with the execution and delivery hereof enter

Form of Director and Officer Indemnification Agreement.

Exhibit 10.9 INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (the ?Agreement?), dated as of , 2021, is entered into by and between ironSource Ltd., an Israeli company whose address is 121 Menachem Begin Street, Tel Aviv 6701203, Israel (the ?Company?), and the undersigned Director or Officer of the Company whose name appears on the signature page hereto (the ?Indemnitee?). WHEREAS, Indemn

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: May 4, 2021 ironSource Announces First Quarter 2021 Results and Corporate Highlights Revenue of $119.7 million, up 96% year-over-year Adjusted EBITDA of $39.5 mil

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: April 28, 2021 ironSource On Telcos, Why It Chose The SPAC Route To IPO And The Hotness That Is Mobile Gaming By Allison Schiff April 28, 2021, 10:44 a.m. EST iro

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: April 20, 2021 ironSource, Valued at $11b, Still ?Scratching Surface? of Potential ? Co-Founder Ad-tech firm has what is said to be the highest valuation of an Is

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: April 12, 2021 A New SPAC Offers a Way To Bet on the Company That Powers Many Of the Apps in Your Phone By Shawn Tully April 10, 2021, 5:00 PM GMT+1 A little-know

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April 8, 2021 53rd at Third 885 Third Avenue New York, New York 10022-4834 Tel: +1.

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: April 7, 2021 ironSource Announces Filing of Registration Statement on Form F-4 in Connection with its Proposed Business Combination with Thoma Bravo Advantage TE

ironSource Ltd. 2021 Share Incentive Plan as amended March 19, 2021.

Exhibit 10.6 IRONSOURCE LTD. 2021 SHARE INCENTIVE PLAN AMENDED AND RESTATED: MARCH 19, 2021 Unless otherwise defined, terms used herein shall have the meaning ascribed to them in Section 2 hereof. 1. PURPOSE; TYPES OF AWARDS; CONSTRUCTION. 1.1 Purpose. The purpose of this 2021 Share Incentive Plan (as amended, this ?Plan?) is to afford an incentive to Service Providers of ironSource Ltd., an Israe

Merger Agreement, dated as of March 20, 2021, by and among ironSource and Thoma Bravo Advantage (“TBA”)

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER by and among IRONSOURCE LTD., SHOWTIME CAYMAN, SHOWTIME CAYMAN II, and THOMA BRAVO ADVANTAGE dated as of March 20, 2021 TABLE OF CONTENTS Page ARTICLE I CERTAIN DEFINITIONS 3 Section 1.01 Definitions 3 Section 1.02 Construction 11 Section 1.03 Table of Defined Terms 12 ARTICLE II PRE-CLOSING TRANSACTIONS; THE MERGER 14 Section 2.01 Pre-Closing Transactions

English Summary of Sub-Lease Agreement, dated December 31, 2020, between ironSource Ltd and TypeA Holdings Ltd.

Exhibit 10.10 Summary of Sub-Lease Agreement Note: this summary does not contain a full or direct translation of the terms of the original Hebrew-language sub-lease agreement, and is designated solely for the purpose of providing a general presentation of such agreement. On December 31, 2020, ironSource Ltd. (the ?Sub-Lessor?) and TypeA Holdings Ltd. (the ?Sub-Lessee?) entered into a sub-lease agr

Form of Amended and Restated Articles of Association of ironSource (included as Annex B to the proxy statement/prospectus).

Exhibit 3.1 THE COMPANIES LAW, 1999 A LIMITED LIABILITY COMPANY AMENDED AND RESTATED ARTICLES OF ASSOCIATION OF IRONSOURCE LTD. As Adopted on , 2021 PRELIMINARY 1. DEFINITIONS; INTERPRETATION. (a) In these Articles, the following terms (whether or not capitalized) shall bear the meanings set forth opposite them, respectively, unless the subject or context requires otherwise. ?Articles? shall mean

ironSource Ltd. 2013 Share Incentive Plan as amended March 19, 2021.

Exhibit 10.5 Ironsource LTD. 2013 SHARE INCENTIVE PLAN ORIGINALLY ADOPTED: AUGUST 11, 2013 AMENDED AND RESTATED: MARCH 19, 2021 Ironsource LTD. 2013 SHARE INCENTIVE PLAN AMENDED AND RESTATED: MARCH 19, 2021 Unless otherwise defined, terms used herein shall have the meaning ascribed to them in Section 2 hereof. 1. PURPOSE; TYPES OF AWARDS; CONSTRUCTION. 1.1 Purpose. The purpose of this 2013 Share I

Consent of Orlando Bravo (Director Nominee).

Exhibit 99.2 Consent of Director Nominee ironSource Ltd. is filing a Proxy Statement / Prospectus on Form F-4 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the ?Securities Act?), in connection with the proposed business combination between ironSource Ltd. and Thoma Bravo Advantage. In connection therewith, I hereby consent, pursuant to Rule 438 of the Se

- F-4

Table of Contents As filed with the Securities and Exchange Commission on March 26, 2021.

Form of Investment Agreement, by and between ironSource and the subscribers party thereto.

Exhibit 10.4 Final Form FORM OF INVESTMENT AGREEMENT This INVESTMENT AGREEMENT (this ?Agreement?) is entered into on March 20, 2021 by and between ironSource Ltd., a company organized under the laws of the State of Israel (the ?Company?), and the subscriber party set forth on the signature page hereto (?Subscriber?). WHEREAS, the Company is concurrently with the execution and delivery hereof enter

Form of Second Amended and Restated Shareholders Rights Agreement, dated as of March 20, 2021, by and among ironSource, certain shareholders of ironSource and the founders of ironSource Ltd.

Exhibit 4.2 SECOND AMENDED AND RESTATED SHAREHOLDERS RIGHTS AGREEMENT THIS SECOND AMENDED AND RESTATED SHAREHOLDERS RIGHTS AGREEMENT (this ?Agreement?) is made as of this 20th day of March, 2021 by and among ironSource Ltd., an Israeli company (the ?Company?), the shareholders listed on Schedule A hereto, including shareholders who have become party hereto from time to time hereafter with the cons

List of subsidiaries of ironSource Ltd.

Exhibit 21.1 Entity Place of Incorporation ironSource Ltd. Israel ironSource Mobile Ltd. Israel ironSource Neon Ltd. Israel IRONSOURCE UK LIMITED UK IRONSOURCE USA INC. USA (Delaware). Also qualified to do business in New York and California. ironSource Japan GK Japan IRONSOURCE BEIJING CO., LTD. China ironSource India Private Limited. India Superior Media Ltd. Israel Upopa Entertainment Ltd. Isra

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53rd at Third 885 Third Avenue New York, New York 10022-4834 Tel: +1.212.906.1200 Fax: +1.212.751.4864 www.lw.com FIRM / AFFILIATE OFFICES Beijing Moscow Boston Munich Brussels New York Century City Orange County Chicago Paris March 26, 2021 Dubai Riyadh D?sseldorf San Diego Frankfurt San Francisco Hamburg Seoul Hong Kong Shanghai Houston Silicon Valley London Singapore Los Angeles Tokyo Madrid Wa

ironSource Ltd. Employee Share Purchase Plan

Exhibit 10.7 IRONSOURCE LTD. 2021 EMPLOYEE SHARE PURCHASE PLAN ARTICLE I. PURPOSE The purpose of this Plan is to assist Eligible Employees of the Company and its Designated Subsidiaries in acquiring a share ownership interest in the Company. The Plan consists of two components: (i) the Section 423 Component and (ii) the Non-Section 423 Component. The Section 423 Component is intended to qualify as

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: March 23, 2021 Orlando Bravo Ready to Double Down on SPACs Bloomberg TV March 22, 2021 Ed Hammond: So Tomer, I?d like to start with you. When you talked about thi

Merger Prospectus - 425

425 1 d270370d425.htm 425 Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: March 22, 2021 Bloomberg Markets: The Close Bloomberg TV March 22, 2021 Caroline Hyde: Running us through all the things you need to kno

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: March 21, 2021 Daniel: Hello. My name is Daniel Amir, Vice President, Investor Relations at ironSource. I want to welcome you to the ironSource and Thoma Bravo Ad

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: March 21, 2021 15-20-140 49-130-253 177-215-254 109-149-254 70-55-134 204-204-204 A leading business platform empowering content creators to prosper in the app ec

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: March 21, 2021 ironSource Announces Combination with Thoma Bravo Advantage to Create a Publicly-Traded Business Platform for the App Economy ? ironSource, a leadi

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: March 22, 2021 Squawk Alley CNBC March 22, 2021 Leslie Picker: Welcome back. App software firm ironSource is going public via SPAC merger with Thoma Bravo Advanta

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: March 21, 2021 Daniel: Hello. My name is Daniel Amir, Vice President, Investor Relations at ironSource. I want to welcome you to the ironSource and Thoma Bravo Ad

Merger Prospectus - 425

Filed by ironSource Ltd. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Thoma Bravo Advantage Commission File No.: 001-39889 Date: March 21, 2021 Thoma Bravo SPAC Agrees to Take IronSource Public By Ed Hammond, Gillian Tan, and Crystal Tse March 21, 2021, 3:00 PM EDT Updated on March 21, 2021

99 Bishopsgate

99 Bishopsgate London EC2M 3XF United Kingdom Tel: +44(0)20.7710.1000 Fax: +44(0)20.7374.4460 www.lw.com FIRM / AFFILIATE OFFICES Beijing Moscow Boston Munich Brussels New York Century City Orange County February 4, 2021 Chicago Paris Dubai Riyadh D?sseldorf San Diego Frankfurt San Francisco Hamburg Seoul Hong Kong Shanghai Houston Silicon Valley London Singapore Los Angeles Tokyo Madrid Washingto