Chemicals And Allied Products - 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)
2025-04-04 13D/A LNZA / LanzaTech Global, Inc. Carbon Direct Capital Management LLC 44,968,002 18.50 0.00
2025-04-03 13D/A TLPH / Talphera, Inc. Nantahala Capital Management, LLC 1,992,519 11.70 0.00
2025-04-03 13D/A OPK / OPKO Health, Inc. Frost Phillip Md Et Al 252,399,406 31.70 0.77
2025-04-03 13D/A OPK / OPKO Health, Inc. Hsiao Jane Ph D 35,677,284 4.50 -0.28
2025-04-02 13D/A TLPH / Talphera, Inc. Nantahala Capital Management, LLC 1,992,519 11.70 0.00
2025-04-02 13D/A PYXS / Pyxis Oncology, Inc. Sullivan Lara 7,543,007 11.21 13.86
2025-04-02 13D/A MBIO / Mustang Bio, Inc. Fortress Biotech, Inc. 199,191 7.90 -96.97
2025-04-02 13D/A ATXI / Avenue Therapeutics, Inc. Fortress Biotech, Inc. 328,746 10.30 11.43
2025-04-01 13D/A VTYX / Ventyx Biosciences, Inc. NSV Partners III, L.P. 4,089,975 5.70
2025-04-01 13D/A MEHCQ / Chrome Holding Co. Zentree Investments Ltd 3,699,236 18.20 13.85
2025-03-31 13D/A DBVT / DBV Technologies S.A. - Depositary Receipt (Common Stock) Baker Bros. Advisors Lp 23,489,663 17.10 -0.00
2025-03-31 13D/A ABOS / Acumen Pharmaceuticals, Inc. Ra Capital Management, L.p. 15,016,063 24.80 0.23
2025-03-31 13D/A TYRA / Tyra Biosciences, Inc. Ra Capital Management, L.p. 10,684,890 20.10 0.07
2025-03-31 13D/A SLNCF / Silence Therapeutics plc Griffiths Richard Ian 29,283,897 20.70 7.40
2025-03-28 13D/A CYCN / Cyclerion Therapeutics, Inc. Hecht Peter M 1,028,086 27.90 22.26
2025-03-28 13D/A SRZN / Surrozen, Inc. Column Group Iii Gp, Lp 3,407,405 34.00 169.30
2025-03-28 13D LNZA / LanzaTech Global, Inc. Carbon Direct Capital Management LLC 44,968,002 18.50 106.94
2025-03-28 13D/A BIOX / Bioceres Crop Solutions Corp. Bioceres Group PLC 27,687,118 44.10 -2.90
2025-03-28 13D/A BNTC / Benitec Biopharma Inc. Suvretta Capital Management, Llc 15,623,659 49.90 9.03
2025-03-28 13D/A SPRO / Spero Therapeutics, Inc. Glaxosmithkline Plc 9,190,606 16.40 0.00
2025-03-27 13D/A MEHCQ / Chrome Holding Co. Zentree Investments Ltd 3,249,236 16.00 23.11
2025-03-27 13D/A SYRS / Syros Pharmaceuticals, Inc. Samsara BioCapital, L.P. 707,114 2.60 -71.89
2025-03-27 13D/A SVRA / Savara Inc. Bain Capital Life Sciences Fund II, L.P. 17,600,621 9.99 20.84
2025-03-26 13D/A XCUR / Exicure, Inc. HiTron Systems Inc. 3,333,333 52.80 669.23
2025-03-25 13D/A AMRN / Amarin Corporation plc - Depositary Receipt (Common Stock) Sarissa Capital Management LP 33,470,000 8.08 0.00
2025-03-25 13D/A TRIB / Trinity Biotech plc - Depositary Receipt (Common Stock) Perceptive Advisors Llc 85,800,000 19.80 0.00
2025-03-24 13D/A SPRY / ARS Pharmaceuticals, Inc. Deerfield Mgmt III, L.P. 10,514,657 10.72
2025-03-24 13D/A HLN / Haleon plc - Depositary Receipt (Common Stock) Pfizer Inc 0 0.00 -100.00
2025-03-21 13D/A AVIR / Atea Pharmaceuticals, Inc. Radoff Family Foundation 3,105,100 3.60 10.11
2025-03-20 13D/A TRVI / Trevi Therapeutics, Inc. New Enterprise Associates 16, L.P. 15,074,080 15.00 0.00
2025-03-20 13D RNAZ / TransCode Therapeutics, Inc. Thomas Joseph Tracy 35,000 5.00
2025-03-20 13D/A HLN / Haleon plc - Depositary Receipt (Common Stock) Pfizer Inc 661,709,764 7.30 0.00
2025-03-19 13D/A DNTH / Dianthus Therapeutics, Inc. Avidity Partners Management LP 3,378,939 9.90 15.31
2025-03-19 13D/A LIPO / Lipella Pharmaceuticals Inc. Kaufman Jonathan H 212,289 8.00 0.00
2025-03-18 13D/A ALTO / Alto Ingredients, Inc. Radoff Family Foundation 3,625,000 4.70 0.00
2025-03-17 13D/A INVA / Innoviva, Inc. Sarissa Capital Management LP 2,966,022 4.70 -43.37
2025-03-17 13D/A DWTX / Dogwood Therapeutics, Inc. Sealbond Ltd 211,383 15.90 0.00
2025-03-17 13D/A MLYS / Mineralys Therapeutics, Inc. Samsara BioCapital, L.P. 5,736,305 9.10 12.65
2025-03-17 13D/A LIPO / Lipella Pharmaceuticals Inc. Kaufman Jonathan H 212,289 8.00 0.00
2025-03-17 13D/A MLYS / Mineralys Therapeutics, Inc. Ra Capital Management, L.p. 6,287,597 9.90 27.04
2025-03-17 13D/A ZYME / Zymeworks Inc. EcoR1 Capital, LLC 16,858,418 24.20 7.24
2025-03-17 13D/A AMRX / Amneal Pharmaceuticals, Inc. Patel Tushar Bhikhubhai 48,578,209 15.70 -9.33
2025-03-17 13D/A SNTI / Senti Biosciences, Inc. Celadon Partners SPV 24 9,777,000 37.60 0.00
2025-03-17 13D MEHCQ / Chrome Holding Co. Zentree Investments Ltd 2,639,190 13.00 33.40
2025-03-14 13D/A GDTC / CytoMed Therapeutics Limited Choo Chee Kong 2,673,325 23.17 -40.44
2025-03-13 13D/A ANIP / ANI Pharmaceuticals, Inc. Meridian Venture Partners II GP, L.P. 1,184,570 5.40 -18.00
2025-03-13 13D/A ELUT / Elutia Inc. HighCape Capital, L.P. 9,611,039 26.40 4.57
2025-03-13 13D SNTI / Senti Biosciences, Inc. Celadon Partners SPV 24 9,777,000 37.60
2025-03-13 13D/A RGC / Regencell Bioscience Holdings Limited Regencell (BVI) Ltd 11,221,821 86.20 6.25
2025-03-12 13D/A OTLK / Outlook Therapeutics, Inc. GMS Ventures & Investments 16,183,787 41.60 27.18