Investor Fortress Biotech, Inc.
13D/G Filings

This page shows a list of all the recent 13D/G filings made by Fortress Biotech, Inc. . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

Date Form Target Prev
Shares
Current
Shares
Change
(Percent)
Ownership
(Percent)
Change
(Percent)
2025-06-03 13D/A CKPT / Checkpoint Therapeutics, Inc. 6,922,249 0
2025-04-02 13D/A MBIO / Mustang Bio, Inc. 6,569,450 199,191
2025-04-02 13D/A ATXI / Avenue Therapeutics, Inc. 295,022 328,746
2025-03-11 13D/A CKPT / Checkpoint Therapeutics, Inc. 6,903,749 6,922,249
2025-01-03 13D/A ATXI / Avenue Therapeutics, Inc. 180,425 295,022
2025-01-03 13D/A MBIO / Mustang Bio, Inc. 2,519,657 6,569,450
2025-01-03 13D/A CKPT / Checkpoint Therapeutics, Inc. 4,435,534 6,903,749
2024-11-15 13D/A ATXI / Avenue Therapeutics, Inc. 3,564,059 180,425
2024-10-01 13D/A CKPT / Checkpoint Therapeutics, Inc. 4,289,193 4,435,534
2024-06-28 13D/A MBIO / Mustang Bio, Inc. 22,880,620 2,519,657
2024-05-17 13D/A CKPT / Checkpoint Therapeutics, Inc. 2,796,278 4,289,193
2024-04-17 13D/A ATXI / Avenue Therapeutics, Inc. 1,049,056 3,564,059
2024-03-22 13D/A CKPT / Checkpoint Therapeutics, Inc. 2,444,239 2,796,278
2023-09-26 13D/A CKPT / Checkpoint Therapeutics, Inc. 2,363,333 2,444,239
2023-09-18 13D/A ATXI / Avenue Therapeutics, Inc. 1,049,056
2023-07-06 13D/A CKPT / Checkpoint Therapeutics, Inc. 2,281,927 2,363,333
2023-04-19 13D/A CKPT / Checkpoint Therapeutics, Inc. 2,203,713 2,281,927
2023-01-13 13D/A CKPT / Checkpoint Therapeutics, Inc. 11,435,515 2,203,713
2023-01-13 13D/A MBIO / Mustang Bio, Inc. 12,120,354 22,880,620
2023-01-06 13D/A ATXI / Avenue Therapeutics, Inc. 3,840,096 578,227
2022-08-17 13G / JOURNEY MEDICAL CORP 10,010,467
2019-05-17 13D/A MBIO / Mustang Bio, Inc. 12,120,354
2019-04-19 13D/A US6363752063 / National Holdings Corp. 4,027,428 0
2019-04-19 13D/A ATXI / Avenue Therapeutics, Inc. 35,704,251 3,840,096
2019-04-19 13D/A CKPT / Checkpoint Therapeutics, Inc. 97,027,051 11,435,515
2018-11-26 13D/A US6363752063 / National Holdings Corp. 7,822,444 4,027,428
2017-10-19 13D ATXI / Avenue Therapeutics, Inc. 3,570,425
2017-05-26 13D MBIO / Mustang Bio, Inc. 10,382,653
2017-05-26 13D CKPT / Checkpoint Therapeutics, Inc. 9,702,705
2016-09-15 13D/A US6363752063 / National Holdings Corp. 2,274,485 7,822,444
2016-05-09 13D US6363752063 / National Holdings Corp. 2,274,485