Keros Therapeutics Inc

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Keros Therapeutics Inc
TickerKROS
CIK #0001664710
CUSIP492327101
SectorLife Sciences - Pharmaceutical Preparations
Address99 Hayden Avenue, Suite 120 (Bld E) Ledgemont Technology Center, Lexington, MA 02421
Source [EDGAR]
CIK Filing 2011 - 2025
[0001664710] 10-K
[0001664710] 10-Q
[0001664710] 3
[0001664710] 4
[0001664710] 8-K
[0001664710] D
[0001664710] SC 13D
[0001664710] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Madison Avenue Partners LP Keros Therapeutics Inc [2025-05-14] 0.0
JPMorgan Chase & Co Keros Therapeutics Inc [2025-05-02] 0.0
Vanguard Group Inc Keros Therapeutics Inc [2025-04-30] 0.0
Adar1 Capital Management LLC Keros Therapeutics Inc [2025-04-11] 0.0
Alkeon Capital Management LLC Keros Therapeutics Inc [2025-02-14] 0.0
Arkin Moshe Keros Therapeutics Inc [2022-04-11] 7.55
Deep Track Capital LP Keros Therapeutics Inc [2021-12-30] 5.45
RA Capital Management LP Keros Therapeutics Inc [2021-02-10] 8.1
BlackRock Inc Keros Therapeutics Inc [2021-02-02] 5.2
FMR LLC Keros Therapeutics Inc [2020-11-10] 0.0
Logos Global Management LP Keros Therapeutics Inc [2020-08-31] 6.7
Pontifax Management 4 GP 2015 Ltd Keros Therapeutics Inc [2020-04-23] 23.6
Arkin Moshe Keros Therapeutics Inc [2020-04-20] 10.5
OrbiMed Advisors LLC Keros Therapeutics Inc [2020-04-17] 6.3
Foresite Capital Fund IV LP Keros Therapeutics Inc [2020-04-15] 7.1
Form 3/4/5 Filer 2011 - 2025
Keros Therapeutics, Inc.
Cho Esther
Lerner Lorena Raquel
ADAR1 Capital Management GP, LLC
ADAR1 Capital Management, LLC
Schneeberger Daniel
ADAR1 Partners, LP
Farzan Nima
Seth Alpna
Gray Mary Ann
Bienaime Jean Jacques
Knowles Julius
Gordon Carl L
Kariv Tomer
Nussbaum Ran
Seehra Jasbir
Rovaldi Christopher
Chyung Yung H
Regnante Keith
OrbiMed Capital GP VII LLC
OrbiMed Genesis GP LLC
OrbiMed Advisors LLC
Cooper Simon Peter
Pontifax (Cayman) IV L.P.
Pontifax Late Stage Fund L.P.
Pontifax (Israel) IV, L.P.
Pontifax Late Stage GP Ltd.
Pontifax Management 4 G.P. (2015) Ltd.
Pontifax (China) IV L.P.
Lachey Jennifer
Ordonez Claudia
Lazarus Alon
Arkin Bio Ventures Limited Partnership
Arkin Bio Venture Partners Ltd.
Arkin Moshe
Form 13F Holdings
Firm Period DFND Voting Shares
Adar1 Capital Management LLC [2025-06-30] SOLE 5,389,264 5,389,264
BlackRock, Inc. [2025-06-30] SOLE 2,665,204 2,732,623
Madison Avenue Partners LP [2025-06-30] SOLE 2,691,465 2,691,465
Vanguard Group Inc [2025-06-30] SOLE 0 2,579,116
Logos Global Management LP [2025-06-30] SOLE 2,000,000 2,000,000
Nantahala Capital Management LLC [2025-06-30] SOLE 1,870,692 1,870,692
Western Standard LLC [2025-06-30] SOLE 1,534,893 1,534,893
Tang Capital Management LLC [2025-06-30] OTR 0 1,418,984
State Street Corp [2025-06-30] DFND 1,341,454 1,384,254
Susquehanna International Group LLP [2025-06-30] OTR 113,665 1,306,665
D. E. Shaw & Co., Inc. [2025-06-30] DFND 1,297,383 1,297,383
OrbiMed Advisors LLC [2025-06-30] SOLE 1,018,734 1,018,734
Morgan Stanley [2025-06-30] DFND 872,979 878,746
Goldman Sachs Group Inc [2025-06-30] DFND 869,898 871,458
Geode Capital Management LLC [2025-06-30] DFND 829,297 829,297
Alkeon Capital Management LLC [2025-06-30] SOLE 710,064 710,064
Federated Hermes Inc [2025-06-30] DFND 654,030 654,030
Redmile Group LLC [2025-06-30] SOLE 552,506 552,506
Jacobs Levy Equity Management Inc [2025-06-30] SOLE 412,970 524,340
Janus Henderson Group PLC [2025-06-30] DFND 0 472,392
PDT Partners LLC [2025-06-30] SOLE 332,815 332,815
Canada Pension Plan Investment Board [2025-06-30] SOLE 318,400 318,400
Bank of America Corp /DE/ [2025-06-30] DFND 16,265 295,477
Rangeley Capital LLC [2025-06-30] SOLE 285,400 285,400
Jane Street Group LLC [2025-06-30] DFND 170,381 284,281
Charles Schwab Investment Management Inc [2025-06-30] SOLE 283,403 283,403
Northern Trust Corp [2025-06-30] DFND 267,675 267,675
Connor Clark & Lunn Investment Management Ltd [2025-06-30] SOLE 265,707 265,707
Newtyn Management LLC [2025-06-30] SOLE 246,857 246,857
Deutsche Bank AG [2025-06-30] DFND 0 211,637
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