Keros TherapeuticsKROS
13F holders, Q4 2025 (December 31)166holders +11
37new positions
25sold out
7famous investors
$20.37avg. 13F price*
At the end of Q4 2025, 166 institutions reported holding Keros Therapeutics Inc. (KROS) in their 13F filings, up 11 from Q3 2025. 37 opened new positions and 25 sold out. The largest holders were BlackRock, Inc. ($46.6M), Vanguard Group Inc. ($31.1M) and Arrowstreet Capital, Limited Partnership ($27.2M). 7 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'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 Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 37 | $25.1M |
| Exits | 25 | $108.0M |
All 13F filers, Q3 2025 → Q4 2025: 5,313,644 shares bought and 20,390,904 shares sold, net −15,077,260 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 166 holders
| BlackRock, Inc. | 0.00% | Reduce -15.7% | 2,290,532 | $46.6M |
| Vanguard Group Inc. | 0.00% | Reduce -43.9% | 1,525,355 | $31.1M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Add +415.8% | 1,334,516 | $27.2M |
| State Street Corp. | 0.00% | Reduce -17.4% | 1,075,993 | $21.9M |
| Madison Avenue Partners, LP | 0.72% | Reduce -69.6% | 823,707 | $16.8M |
| Orbimed Advisors LLC | 0.34% | Reduce -21.1% | 804,212 | $16.4M |
| Qube Research & Technologies Ltd | 0.02% | Add +158.6% | 783,918 | $16.0M |
| Jacobs Levy Equity Management, Inc. | 0.06% | Add +26.6% | 768,425 | $15.6M |
| D. E. Shaw & Co. | 0.01% | Reduce -43.3% | 755,473 | $15.4M |
| Federated Hermes, Inc. | 0.02% | Add +27.3% | 654,724 | $13.3M |
| Geode Capital Management, LLC | 0.00% | Reduce -24.1% | 635,208 | $12.9M |
| Renaissance Technologies | 0.02% | Add +282.5% | 591,686 | $12.0M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -55.5% | 590,517 | $12.0M |
| Citadel Advisors | 0.01% | Add +168.3% | 472,520 | $9.6M |
| Nantahala Capital Management, LLC | 0.44% | Reduce -70.8% | 360,419 | $7.3M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.02% | Reduce -4.1% | 321,346 | $6.5M |
| Two Sigma Investments, LP | 0.01% | Add +285.9% | 318,439 | $6.5M |
| HRT Financial LP | 0.02% | Add +509.6% | 260,891 | $5.3M |
| Weiss Asset Management LP | 0.09% | New | 254,063 | $5.2M |
| Northern Trust Corp. | 0.00% | Reduce -24.7% | 250,571 | $5.1M |
| Morgan Stanley | 0.00% | Reduce -41.7% | 230,492 | $4.7M |
| Millennium Management | 0.00% | Add +312.8% | 220,209 | $4.5M |
| Deutsche Bank AG | 0.00% | Add +739.6% | 195,281 | $4.0M |
| Algert Global LLC | 0.06% | Add +305.2% | 193,607 | $3.9M |
| Man Group plc | 0.01% | Reduce -1.4% | 190,207 | $3.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -36.0% | 186,779 | $3.8M |
| AQR Capital Management | 0.00% | Reduce -11.7% | 180,543 | $3.7M |
| Two Sigma Advisers, LP | 0.01% | Add +217.0% | 171,800 | $3.5M |
| Jane Street Group, LLC | 0.00% | Reduce -0.3% | 162,009 | $3.3M |
| Jump Financial, LLC | 0.04% | New | 161,136 | $3.3M |
| Nomura Holdings Inc. | 0.01% | New | 156,753 | $3.2M |
| Bessemer Group Inc. | 0.00% | New | 143,853 | $2.9M |
| Ameriprise Financial Inc. | 0.00% | Add +2.0% | 122,828 | $2.5M |
| Panagora Asset Management Inc. | 0.01% | Add +303.2% | 122,821 | $2.5M |
| Bank of New York Mellon Corp | 0.00% | Add +9.7% | 121,582 | $2.5M |
| Y-Intercept (Hong Kong) Ltd | 0.05% | Add +141.8% | 117,361 | $2.4M |
| PDT Partners, LLC | 0.15% | Reduce -66.3% | 112,183 | $2.3M |
| Bank of America Corp. | 0.00% | Reduce -55.7% | 100,114 | $2.0M |
| SG Americas Securities, LLC | 0.00% | Add +1420.6% | 98,703 | $2.0M |
| UBS Group AG | 0.00% | Reduce -6.5% | 97,084 | $2.0M |
| Rangeley Capital, LLC | 1.72% | Reduce -62.6% | 96,800 | $2.0M |
| Invesco Ltd. | 0.00% | Add +16.6% | 87,428 | $1.8M |
| RBF Capital, LLC | 0.08% | Reduce -45.5% | 81,724 | $1.7M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -13.2% | 80,774 | $1.6M |
| Barclays PLC | 0.00% | Reduce -24.6% | 74,726 | $1.5M |
| Nuveen, LLC | 0.00% | Reduce -16.8% | 63,097 | $1.3M |
| Engineers Gate Manager LP | 0.02% | Add +136.5% | 62,369 | $1.3M |
| Bridgeway Capital Management, LLC | 0.03% | New | 60,078 | $1.2M |
| Dimensional Fund Advisors LP | 0.00% | Add +61.3% | 58,013 | $1.2M |
| Gsa Capital Partners LLP | 0.09% | Add +103.0% | 51,346 | $1.0M |
| Mackenzie Financial Corp. | 0.00% | Reduce -9.5% | 51,385 | $1.0M |
| Public Employees Retirement System of Ohio | 0.00% | Add +21.4% | 50,324 | $1.0M |
| Rhumbline Advisers | 0.00% | Reduce -12.4% | 44,235 | $901K |
| Canada Pension Plan Investment Board | 0.00% | Reduce -80.6% | 44,100 | $898K |
| Massachusetts Financial Services Co. | 0.00% | New | 43,695 | $890K |
| Hussman Strategic Advisors, Inc. | 0.21% | New | 42,000 | $855K |
| Martingale Asset Management L P | 0.02% | Add +0.5% | 39,379 | $802K |
| Point72 Asset Management | 0.00% | New | 38,848 | $791K |
| American Century Companies Inc. | 0.00% | Reduce -6.5% | 36,640 | $746K |
| FMR LLC | 0.00% | Reduce -64.6% | 35,597 | $725K |
| Wells Fargo & Company | 0.00% | Add +26.5% | 32,762 | $667K |
| AlphaQuest LLC | 0.04% | Add +110.4% | 32,090 | $653K |
| Cambria Investment Management, L.P. | 0.04% | New | 31,312 | $638K |
| Alliancebernstein L.P. | 0.00% | Add +11.0% | 30,860 | $628K |
| Rafferty Asset Management, LLC | 0.00% | Reduce -31.3% | 30,280 | $617K |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -40.6% | 29,699 | $605K |
| Caption Management, LLC | 0.03% | Reduce -18.2% | 29,500 | $601K |
| STRS Ohio | 0.00% | Add +3.9% | 29,300 | $597K |
| Tudor Investment Corporation | 0.00% | Add +45.0% | 28,307 | $576K |
| Franklin Resources Inc. | 0.00% | Reduce -68.6% | 27,582 | $562K |
| DekaBank Deutsche Girozentrale | 0.00% | No change | 7,550 | $531K |
| Fox Run Management, L.L.C. | 0.08% | New | 25,680 | $523K |
| Los Angeles Capital Management LLC | 0.00% | Reduce -8.7% | 33,771 | $508K |
| Brooklyn Investment Group | 0.02% | New | 23,750 | $490K |
| Creative Planning | 0.00% | Reduce -12.9% | 23,131 | $471K |
| LSV Asset Management | 0.00% | New | 23,100 | $470K |
| WINTON GROUP Ltd | 0.02% | New | 21,590 | $440K |
| Oxford Asset Management LLP | 0.16% | New | 21,510 | $438K |
| Quantinno Capital Management LP | 0.00% | Reduce -0.1% | 21,120 | $430K |
| State of Wisconsin Investment Board | 0.00% | Reduce -10.8% | 19,835 | $404K |
| Quantedge Capital Pte Ltd | 0.19% | New | 19,292 | $393K |
| ADAR1 Capital Management, LLC | 0.03% | Reduce -99.7% | 18,851 | $384K |
| Penserra Capital Management LLC | 0.00% | New | 18,839 | $383K |
| JPMorgan Chase & Co. | 0.00% | Reduce -89.2% | 18,638 | $379K |
| Entropy Technologies, LP | 0.02% | New | 17,891 | $364K |
| Campbell & CO Investment Adviser LLC | 0.02% | New | 17,630 | $359K |
| Polymer Capital Management (US) LLC | 0.05% | Add +56.9% | 17,495 | $356K |
| Integrated Quantitative Investments LLC | 0.07% | New | 16,974 | $346K |
| Legato Capital Management LLC | 0.03% | New | 16,974 | $346K |
| MetLife Investment Management, LLC | 0.00% | Reduce -15.5% | 16,682 | $340K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -15.6% | 15,317 | $312K |
| Mariner, LLC | 0.00% | Reduce -3.2% | 15,211 | $310K |
| EJF Capital LP | 0.17% | New | 15,000 | $305K |
| Abacus Wealth Partners, LLC | 0.03% | New | 14,109 | $287K |
| Prelude Capital Management, LLC | 0.02% | New | 13,639 | $278K |
| Susquehanna International Group, LLP | 0.00% | Reduce -93.8% | 13,389 | $273K |
| ExodusPoint Capital Management, LP | 0.00% | Reduce -41.9% | 13,360 | $272K |
| Intech Investment Management LLC | 0.00% | Reduce -20.4% | 13,265 | $270K |
| VARCOV Co. | 0.10% | — | 12,810 | $261K |
| Virtus Investment Advisers, LLC | 0.07% | Add +48.3% | 12,367 | $252K |
"% of holder's portfolio" is KROS's weight in each manager's 13F, not the share of Keros Therapeutics Inc. the manager owns.