Drugs - Latest Activist Disclosures

This table shows recent activist investor (Schedule 13D) filings made in this industry. Any investor or hedge fund that makes an investment with the intention of influencing management is considered an activist investor and must file a 13D.

Date Form Target Company Investor Shares Ownership
(Percent)
Ownership Change
(Percent)
2025-09-22 13D/A XCUR / Exicure, Inc. HiTron Systems Inc. 3,333,333 52.80 0.00
2025-09-19 13D/A PGEN / Precigen, Inc. Kirk Randal J 146,295,359 39.40 25.21
2025-09-19 13D/A AWHL / Aspira Women's Health Inc. Schuler Jack W 3,830,365 9.10 40.89
2025-09-19 13D/A BFRI / Biofrontera Inc. Deutsche Balaton Aktiengesellschaft 2,552,230 19.99 456.18
2025-09-19 13D ARTL / Artelo Biosciences, Inc. Farb Daniel Stuart 153,000 9.80
2025-09-19 13D/A HYPD / Hyperion DeFi, Inc. Avenue Venture Opportunities Fund, L.P. 240,124 4.20 -32.22
2025-09-18 13D CGON / CG Oncology, Inc. Longitude Capital Partners IV, LLC 4,662,268 6.00 -0.00
2025-09-18 13D CGON / CG Oncology, Inc. Seven Fleet Partners LP 1,515,151 2.00
2025-09-18 13D/A LVTX / LAVA Therapeutics N.V. Versant Venture Capital VI, L.P. 2,370,533 9.00 -30.42
2025-09-18 13D/A RDY / Dr. Reddy's Laboratories Limited - Depositary Receipt (Common Stock) G.V. Prasad 113,356,510 13.58
2025-09-17 13D/A HYPD / Hyperion DeFi, Inc. Avenue Venture Opportunities Fund, L.P. 354,291 6.20 -18.64
2025-09-15 13D/A DNTH / Dianthus Therapeutics, Inc. Fairmount Funds Management LLC 4,052,052 9.90 37.01
2025-09-12 13D TLPH / Talphera, Inc. CorMedix Inc. 9,090,909 19.95
2025-09-12 13D/A VOR / Vor Biopharma Inc. Reprogrammed Interchange LLC 33,928,487 26.80 -4.36
2025-09-09 13D/A VOR / Vor Biopharma Inc. Reprogrammed Interchange LLC 35,476,939 28.00 -3.82
2025-09-08 13D/A MLYS / Mineralys Therapeutics, Inc. Samsara BioCapital, L.P. 6,346,194 8.20 10.63
2025-09-08 13D/A MLYS / Mineralys Therapeutics, Inc. Ra Capital Management, L.p. 7,796,433 9.90 24.00
2025-09-05 13D/A TCRT / Alaunos Therapeutics, Inc. Pmgc Capital Llc 0 0.00 -100.00
2025-09-05 13D/A VALN / Valneva SE - Depositary Receipt (Common Stock) Bpifrance Participations SA 21,810,176 11.60 54.53
2025-09-05 13D/A INDV / Indivior PLC Two Seas Capital LP 10,329,152 8.30 -11.43
2025-09-04 13D/A NBY / NovaBay Pharmaceuticals, Inc. Poplar Point Capital Management Llc 1,020,300 17.52 0.00
2025-09-04 13D/A PRQR / ProQR Therapeutics N.V. Van Herk Investments B.v. 13,274,690 12.60 8.79
2025-09-03 13D/A VTVT / vTv Therapeutics Inc. Samsara BioCapital, L.P. 343,223 9.90 29.22
2025-09-02 13D STTK / Shattuck Labs, Inc. Orbimed Advisors Llc 6,306,127 9.99
2025-09-02 13D/A CARM / Carisma Therapeutics, Inc. HealthCap VII, L.P. 0 0.00 -100.00
2025-09-02 13D/A SNTI / Senti Biosciences, Inc. Celadon Partners SPV 24 13,404,441 45.00 37.10
2025-08-29 13D/A VOR / Vor Biopharma Inc. Reprogrammed Interchange LLC 36,884,567 29.10 -5.36
2025-08-29 13D/A CARM / Carisma Therapeutics, Inc. HealthCap VII, L.P. 2,014,372 4.80 -25.99
2025-08-28 13D/A ORMP / Oramed Pharmaceuticals Inc. Kidron Nadav 3,116,729 7.60 32.97
2025-08-26 13D/A STOK / Stoke Therapeutics, Inc. Blue Horizon Enterprise Ltd 2,256,181 4.10 -30.71
2025-08-26 13D/A STTK / Shattuck Labs, Inc. Redmile Group, LLC 6,379,095 9.90 12.85
2025-08-26 13D/A IVVD / Invivyd, Inc. M28 Capital Management LP 9,548,250 4.60 3.24
2025-08-26 13D NBY / NovaBay Pharmaceuticals, Inc. Lazar David E. 1,200,048 19.99
2025-08-22 13D/A ARVN / Arvinas, Inc. Logos Global Management LP 6,300,000 8.60 31.25
2025-08-22 13D HYEX / Healthy Extracts Inc. Swanson Donald William 13,075,920 77.50
2025-08-22 13D/A ANIP / ANI Pharmaceuticals, Inc. Meridian Venture Partners II GP, L.P. 1,034,570 4.80 -12.66
2025-08-21 13D/A CARM / Carisma Therapeutics, Inc. HealthCap VII, L.P. 2,721,923 6.50 -19.90
2025-08-21 13D/A KROS / Keros Therapeutics, Inc. ADAR1 Capital Management, LLC 5,389,264 13.27 -0.03
2025-08-20 13D/A NAMS / NewAmsterdam Pharma Company N.V. Frazier Life Sciences X, L.P. 7,327,937 6.50 -55.36
2025-08-20 13D/A KALV / KalVista Pharmaceuticals, Inc. Frazier Life Sciences Public Fund, L.P. 2,400,276 4.80 -50.89
2025-08-20 13D/A ARQT / Arcutis Biotherapeutics, Inc. Frazier Life Sciences VIII, L.P. 8,943,712 7.50 0.92
2025-08-20 13D/A PHAT / Phathom Pharmaceuticals, Inc. Frazier Life Sciences Public Fund, L.P. 5,985,327 8.60 -58.52
2025-08-20 13D/A MIRM / Mirum Pharmaceuticals, Inc. Frazier Life Sciences IX, L.P. 3,735,220 7.60 -40.01
2025-08-20 13D/A PRQR / ProQR Therapeutics N.V. Van Herk Investments B.v. 12,202,190 11.60 6.09
2025-08-19 13D/A ADAP / Adaptimmune Therapeutics plc - Depositary Receipt (Common Stock) New Enterprise Associates 14, L.P. 4 0.00 -100.00
2025-08-19 13D/A IOBT / IO Biotech, Inc. Novo Holdings A/S 4,981,588 7.30 -14.46
2025-08-18 13D/A OSTX / OS Therapies Incorporated Auerbach Shalom 2,677,570 8.50 -0.37
2025-08-18 13D/A CMPX / Compass Therapeutics, Inc. Commander Aggregator, LP 7,788,150 4.50
2025-08-18 13D/A MRKR / Marker Therapeutics, Inc. New Enterprise Associates 16, L.P. 1,625,678 12.60 0.00
2025-08-15 13D/A BHC / Bausch Health Companies Inc. Icahn Partners Master Fund LP 0 0.00 -100.00