Keros TherapeuticsKROS
13F holders, Q3 2025 (September 30)155holders +16
29new positions
13sold out
6famous investors
$15.83avg. 13F price*
At the end of Q3 2025, 155 institutions reported holding Keros Therapeutics Inc. (KROS) in their 13F filings, up 16 from Q2 2025. 29 opened new positions and 13 sold out. The largest holders were ADAR1 Capital Management, LLC ($85.3M), Vanguard Group Inc. ($43.0M) and BlackRock, Inc. ($43.0M). 6 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Keros Therapeutics Inc.
- CUSIP
- 492327101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 29 | $9.3M |
| Exits | 13 | $14.9M |
All 13F filers, Q2 2025 → Q3 2025: 3,782,543 shares bought and 4,341,387 shares sold, net −558,844 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 155 holders
| ADAR1 Capital Management, LLC | 8.50% | No change | 5,389,264 | $85.3M |
| Vanguard Group Inc. | 0.00% | Add +3.3% | 2,718,777 | $43.0M |
| BlackRock, Inc. | 0.00% | Reduce -0.6% | 2,717,153 | $43.0M |
| Madison Avenue Partners, LP | 2.56% | Add +0.6% | 2,708,218 | $42.8M |
| Western Standard LLC | 18.53% | Add +42.7% | 2,189,882 | $34.6M |
| Tang Capital Management LLC | 0.86% | No change | 1,418,984 | $22.4M |
| D. E. Shaw & Co. | 0.02% | Add +2.6% | 1,331,425 | $21.1M |
| Goldman Sachs Group Inc. | 0.00% | Add +50.0% | 1,325,483 | $21.0M |
| State Street Corp. | 0.00% | Reduce -5.9% | 1,302,978 | $20.6M |
| Nantahala Capital Management, LLC | 1.21% | Reduce -23.9% | 1,233,189 | $19.5M |
| Orbimed Advisors LLC | 0.39% | No change | 1,018,734 | $16.1M |
| Alkeon Capital Management LLC | 0.06% | No change | 850,511 | $13.5M |
| Logos Global Management LP | 1.33% | Reduce -57.5% | 850,000 | $13.4M |
| Geode Capital Management, LLC | 0.00% | Add +1.0% | 837,363 | $13.2M |
| Jacobs Levy Equity Management, Inc. | 0.04% | Add +15.8% | 607,089 | $9.6M |
| Redmile Group, LLC | 0.85% | No change | 552,506 | $8.7M |
| Federated Hermes, Inc. | 0.01% | Reduce -21.4% | 514,160 | $8.1M |
| Morgan Stanley | 0.00% | Reduce -55.0% | 395,103 | $6.3M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.02% | Add +26.1% | 335,154 | $5.3M |
| PDT Partners, LLC | 0.33% | No change | 332,815 | $5.3M |
| Northern Trust Corp. | 0.00% | Add +21.8% | 332,758 | $5.3M |
| Qube Research & Technologies Ltd | 0.01% | Add +683.7% | 303,122 | $4.8M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +3.0% | 292,006 | $4.6M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +300.7% | 258,754 | $4.1M |
| Rangeley Capital, LLC | 3.94% | Reduce -9.4% | 258,619 | $4.1M |
| Assenagon Asset Management S.A. | 0.01% | Add +154.2% | 257,518 | $4.1M |
| Canada Pension Plan Investment Board | 0.00% | Reduce -28.6% | 227,300 | $3.6M |
| Bank of America Corp. | 0.00% | Reduce -23.5% | 226,127 | $3.6M |
| Susquehanna International Group, LLP | 0.01% | Add +90.7% | 216,700 | $3.4M |
| AQR Capital Management | 0.00% | Add +189.2% | 204,351 | $3.2M |
| Man Group plc | 0.01% | Add +58.7% | 192,854 | $3.1M |
| Citadel Advisors | 0.00% | Add +669.3% | 176,144 | $2.8M |
| JPMorgan Chase & Co. | 0.00% | Add +260.8% | 171,941 | $2.7M |
| Jane Street Group, LLC | 0.00% | Add +183.6% | 162,455 | $2.6M |
| Renaissance Technologies | 0.00% | Add +5.5% | 154,700 | $2.4M |
| RBF Capital, LLC | 0.11% | No change | 150,000 | $2.4M |
| Cubist Systematic Strategies, LLC | 0.03% | New | 121,530 | $1.9M |
| Ameriprise Financial Inc. | 0.00% | Add +22.1% | 120,433 | $1.9M |
| Bank of New York Mellon Corp | 0.00% | Add +1.4% | 110,882 | $1.8M |
| Monimus Capital Management, LP | 1.27% | Add +19.5% | 108,051 | $1.7M |
| UBS Group AG | 0.00% | Add +1.1% | 103,864 | $1.6M |
| FMR LLC | 0.00% | Reduce -38.8% | 100,531 | $1.6M |
| Squarepoint Ops LLC | 0.00% | New | 100,141 | $1.6M |
| Barclays PLC | 0.00% | Reduce -18.2% | 99,100 | $1.6M |
| Superstring Capital Management LP | 1.48% | New | 95,083 | $1.5M |
| Russell Investments Group, Ltd. | 0.00% | Add +50.7% | 93,039 | $1.5M |
| Franklin Resources Inc. | 0.00% | Reduce -33.7% | 87,758 | $1.4M |
| HighVista Strategies LLC | 0.32% | Add +57.8% | 83,050 | $1.3M |
| Two Sigma Investments, LP | 0.00% | Add +510.3% | 82,523 | $1.3M |
| DAFNA Capital Management LLC | 0.32% | Reduce -38.1% | 80,716 | $1.3M |
| Nuveen, LLC | 0.00% | No change | 75,855 | $1.2M |
| Invesco Ltd. | 0.00% | Add +72.8% | 74,979 | $1.2M |
| BNP Paribas Financial Markets | 0.00% | Add +47.3% | 68,656 | $1.1M |
| Mackenzie Financial Corp. | 0.00% | Add +5.4% | 56,768 | $898K |
| Two Sigma Advisers, LP | 0.00% | Add +217.0% | 54,200 | $857K |
| Millennium Management | 0.00% | Add +289.2% | 53,346 | $844K |
| Rhumbline Advisers | 0.00% | Reduce -2.6% | 50,478 | $799K |
| T. Rowe Price Associates Inc. | 0.00% | Add +3.2% | 49,981 | $791K |
| Y-Intercept (Hong Kong) Ltd | 0.02% | Reduce -53.7% | 48,545 | $768K |
| Algert Global LLC | 0.01% | Reduce -14.0% | 47,779 | $756K |
| Brevan Howard Capital Management LP | 0.01% | Reduce -36.0% | 44,874 | $710K |
| Rafferty Asset Management, LLC | 0.00% | Reduce -18.8% | 44,066 | $697K |
| Tetragon Partners GP Ltd | 0.16% | Reduce -66.4% | 43,000 | $680K |
| HRT Financial LP | 0.00% | New | 42,799 | $677K |
| Erste Asset Management GmbH | 0.01% | Add +100.0% | 41,400 | $660K |
| Public Employees Retirement System of Ohio | 0.00% | Add +58.8% | 41,453 | $656K |
| SummitTX Capital, L.P. | 0.03% | No change | 40,000 | $633K |
| Martingale Asset Management L P | 0.02% | Add +182.7% | 39,177 | $620K |
| American Century Companies Inc. | 0.00% | New | 39,166 | $620K |
| Los Angeles Capital Management LLC | 0.00% | Reduce -11.3% | 37,003 | $585K |
| Caption Management, LLC | 0.03% | No change | 36,078 | $571K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -1.9% | 35,958 | $569K |
| DekaBank Deutsche Girozentrale | 0.00% | No change | 7,550 | $525K |
| Panagora Asset Management Inc. | 0.00% | New | 30,461 | $482K |
| STRS Ohio | 0.00% | Add +200.0% | 28,200 | $446K |
| Alliancebernstein L.P. | 0.00% | No change | 27,810 | $440K |
| Creative Planning | 0.00% | Add +9.7% | 26,573 | $420K |
| Engineers Gate Manager LP | 0.00% | Add +119.1% | 26,369 | $417K |
| Wells Fargo & Company | 0.00% | Add +18.0% | 25,890 | $410K |
| Gsa Capital Partners LLP | 0.03% | Reduce -58.8% | 25,300 | $400K |
| Deutsche Bank AG | 0.00% | Reduce -89.0% | 23,259 | $368K |
| ExodusPoint Capital Management, LP | 0.01% | New | 22,975 | $363K |
| State of Wisconsin Investment Board | 0.00% | Reduce -69.1% | 22,224 | $352K |
| Quantinno Capital Management LP | 0.00% | New | 21,131 | $334K |
| MetLife Investment Management, LLC | 0.00% | No change | 19,749 | $312K |
| Alps Advisors Inc. | 0.00% | Reduce -10.4% | 19,673 | $311K |
| Tudor Investment Corporation | 0.00% | New | 19,525 | $309K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | New | 18,141 | $287K |
| Advantage Alpha Capital Partners LP | 0.09% | New | 18,059 | $286K |
| Intech Investment Management LLC | 0.00% | Reduce -12.7% | 16,673 | $264K |
| Mariner, LLC | 0.00% | New | 15,708 | $249K |
| AlphaQuest LLC | 0.02% | Reduce -41.3% | 15,249 | $241K |
| Group One Trading LLC | 0.01% | Reduce -37.1% | 14,483 | $229K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -7.7% | 11,494 | $182K |
| Polymer Capital Management (US) LLC | 0.02% | Reduce -59.0% | 11,148 | $176K |
| Cornerstone Investment Partners, LLC | 0.01% | New | 11,143 | $176K |
| Sherbrooke Park Advisers LLC | 0.08% | New | 11,136 | $176K |
| New York State Common Retirement Fund | 0.00% | No change | 10,616 | $168K |
| Quadrature Capital Ltd | 0.00% | Reduce -78.0% | 10,362 | $164K |
| American Financial Group Inc. | 0.06% | No change | 10,105 | $160K |
"% of holder's portfolio" is KROS's weight in each manager's 13F, not the share of Keros Therapeutics Inc. the manager owns.