Keros TherapeuticsKROS
13F holders, Q2 2026 (June 30)132holders −19
14new positions
30sold out
6famous investors
$10.70avg. 13F price*
At the end of Q2 2026, 132 institutions reported holding Keros Therapeutics Inc. (KROS) in their 13F filings, down 19 from Q1 2026. 14 opened new positions and 30 sold out. The largest holders were BlackRock, Inc. ($29.9M), Nantahala Capital Management, LLC ($15.1M) and AQR Capital Management ($10.4M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Cliff Asness (0.0% of AQR Capital Management'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 Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 14 | $4.3M |
| Exits | 30 | $5.1M |
All 13F filers, Q1 2026 → Q2 2026: 2,700,860 shares bought and 2,734,928 shares sold, net −34,068 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 132 holders
| BlackRock, Inc. | 0.00% | Add +15.9% | 2,794,217 | $29.9M |
| Nantahala Capital Management, LLC | 0.92% | Add +3.7% | 1,410,419 | $15.1M |
| AQR Capital Management | 0.00% | Add +138.1% | 967,859 | $10.4M |
| Vanguard Capital Management LLC | 0.00% | Add +0.3% | 833,596 | $8.9M |
| Orbimed Advisors LLC | 0.15% | No change | 759,155 | $8.1M |
| Federated Hermes, Inc. | 0.01% | Add +1.6% | 700,427 | $7.5M |
| Vanguard Portfolio Management LLC | 0.00% | Reduce -4.3% | 652,635 | $7.0M |
| Mackenzie Financial Corp. | 0.01% | Add +312.2% | 628,438 | $6.7M |
| Madison Avenue Partners, LP | 0.29% | No change | 626,583 | $6.7M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -16.0% | 608,837 | $6.5M |
| Jacobs Levy Equity Management, Inc. | 0.02% | Reduce -14.3% | 605,445 | $6.5M |
| State Street Corp. | 0.00% | Reduce -3.7% | 541,193 | $5.8M |
| Geode Capital Management, LLC | 0.00% | Reduce -25.0% | 510,841 | $5.5M |
| Dimensional Fund Advisors LP | 0.00% | Add +43.3% | 460,541 | $4.9M |
| Citadel Advisors | 0.00% | Reduce -2.6% | 396,098 | $4.2M |
| Renaissance Technologies | 0.01% | Reduce -20.8% | 359,086 | $3.8M |
| D. E. Shaw & Co. | 0.00% | Reduce -47.5% | 267,460 | $2.9M |
| Bridgeway Capital Management, LLC | 0.05% | Add +35.9% | 265,017 | $2.8M |
| Nuveen, LLC | 0.00% | Reduce -5.5% | 247,756 | $2.7M |
| ADAR1 Capital Management, LLC | 0.13% | Add +153.6% | 246,818 | $2.6M |
| Two Sigma Investments, LP | 0.00% | Reduce -32.2% | 246,649 | $2.6M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -60.5% | 233,175 | $2.5M |
| Millennium Management | 0.00% | Add +73.0% | 184,822 | $2.0M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -20.8% | 177,846 | $1.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -11.8% | 158,712 | $1.7M |
| Man Group plc | 0.00% | Reduce -34.8% | 155,541 | $1.7M |
| Wells Fargo & Company | 0.00% | Add +2.9% | 155,480 | $1.7M |
| Northern Trust Corp. | 0.00% | Reduce -39.5% | 153,843 | $1.6M |
| Bessemer Group Inc. | 0.00% | No change | 143,853 | $1.5M |
| Empowered Funds, LLC | 0.01% | Reduce -2.3% | 142,151 | $1.5M |
| UBS Group AG | 0.00% | Reduce -5.2% | 137,987 | $1.5M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +3.1% | 131,314 | $1.4M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Reduce -50.4% | 127,885 | $1.4M |
| O'shaughnessy Asset Management, LLC | 0.01% | New | 126,379 | $1.4M |
| Jane Street Group, LLC | 0.00% | Add +159.3% | 115,267 | $1.2M |
| Acadian Asset Management LLC | 0.00% | Add +76.7% | 115,618 | $1.2M |
| Bank of New York Mellon Corp | 0.00% | Reduce -14.6% | 103,339 | $1.1M |
| Ameriprise Financial Inc. | 0.00% | Reduce -1.1% | 101,342 | $1.1M |
| American Century Companies Inc. | 0.00% | Add +31.8% | 84,680 | $906K |
| Los Angeles Capital Management LLC | 0.00% | Reduce -51.0% | 84,372 | $903K |
| Morgan Stanley | 0.00% | Reduce -36.1% | 79,286 | $848K |
| Invesco Ltd. | 0.00% | Reduce -18.5% | 71,563 | $766K |
| HSBC Holdings PLC | 0.00% | Add +29.5% | 69,926 | $761K |
| Martingale Asset Management L P | 0.02% | Add +42.4% | 67,796 | $725K |
| Principal Financial Group Inc. | 0.00% | Add +7.1% | 63,807 | $683K |
| RBF Capital, LLC | 0.03% | No change | 62,800 | $672K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -25.1% | 60,892 | $652K |
| XTX Topco Ltd | 0.01% | Reduce -32.6% | 59,531 | $637K |
| Jain Global LLC | 0.01% | New | 59,209 | $634K |
| T. Rowe Price Associates Inc. | 0.00% | Add +22.3% | 56,121 | $601K |
| Panagora Asset Management Inc. | 0.00% | Add +61.5% | 55,985 | $599K |
| Ieq Capital, LLC | 0.00% | New | 55,675 | $596K |
| Rangeley Capital, LLC | 0.57% | No change | 54,400 | $582K |
| Public Employees Retirement System of Ohio | 0.00% | No change | 50,324 | $538K |
| BNP Paribas Financial Markets | 0.00% | Add +622.1% | 49,851 | $533K |
| Barclays PLC | 0.00% | Add +114.6% | 49,704 | $532K |
| Y-Intercept (Hong Kong) Ltd | 0.01% | Reduce -70.7% | 48,176 | $515K |
| Massachusetts Financial Services Co. | 0.00% | Reduce -3.8% | 47,121 | $504K |
| Deutsche Bank AG | 0.00% | Reduce -7.8% | 46,802 | $501K |
| Susquehanna Portfolio Strategies, LLC | 0.01% | New | 44,824 | $480K |
| Mariner, LLC | 0.00% | Add +181.3% | 38,895 | $416K |
| FMR LLC | 0.00% | Add +8.1% | 35,328 | $378K |
| Prelude Capital Management, LLC | 0.03% | Reduce -23.9% | 35,039 | $375K |
| Marshall Wace, LLP | 0.00% | New | 34,600 | $370K |
| Alliancebernstein L.P. | 0.00% | Add +7.6% | 33,200 | $367K |
| Rhumbline Advisers | 0.00% | Reduce -18.5% | 32,755 | $350K |
| Bank of America Corp. | 0.00% | Reduce -41.8% | 31,230 | $334K |
| Squarepoint Ops LLC | 0.00% | New | 31,204 | $334K |
| Mercer Global Advisors Inc. | 0.00% | Add +135.8% | 27,684 | $296K |
| Quantinno Capital Management LP | 0.00% | Add +13.5% | 26,971 | $289K |
| Canada Pension Plan Investment Board | 0.00% | Reduce -47.6% | 23,100 | $247K |
| Susquehanna International Group, LLP | 0.00% | Add +87.2% | 21,043 | $225K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | New | 17,841 | $211K |
| Cerity Partners LLC | 0.00% | New | 18,301 | $196K |
| Creative Planning | 0.00% | Reduce -6.2% | 16,708 | $179K |
| MetLife Investment Management, LLC | 0.00% | No change | 16,682 | $178K |
| Jump Financial, LLC | 0.00% | Reduce -69.4% | 15,400 | $165K |
| EJF Capital LP | 0.11% | No change | 15,000 | $161K |
| JPMorgan Chase & Co. | 0.00% | Reduce -61.2% | 14,624 | $160K |
| nVerses Capital, LLC | 0.22% | New | 13,124 | $140K |
| Engineers Gate Manager LP | 0.00% | Reduce -26.4% | 12,215 | $131K |
| PDT Partners, LLC | 0.01% | Reduce -65.2% | 11,405 | $122K |
| Point72 Asset Management | 0.00% | Reduce -90.5% | 10,393 | $111K |
| American Financial Group Inc. | 0.04% | No change | 10,105 | $108K |
| Arax Advisory Partners | 0.00% | Add +2482.8% | 10,047 | $108K |
| New York State Common Retirement Fund | 0.00% | No change | 9,116 | $98K |
| Citigroup Inc. | 0.00% | Add +308.3% | 9,015 | $96K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -38.7% | 8,511 | $91K |
| Legal & General Group Plc | 0.00% | Add +220.9% | 8,410 | $90K |
| Vanguard Global Advisers, LLC | 0.00% | Reduce -49.6% | 7,945 | $85K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 7,700 | $82K |
| Nisa Investment Advisors, LLC | 0.00% | Add +82.2% | 3,989 | $43K |
| Royal Bank of Canada | 0.00% | Reduce -34.8% | 3,174 | $34K |
| China Universal Asset Management Co., Ltd. | 0.00% | Reduce -41.7% | 3,150 | $34K |
| IFP Advisors, Inc | 0.00% | Add +5.7% | 3,013 | $32K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 2,372 | $25K |
| Osaic Holdings, Inc. | 0.00% | Add +0.1% | 2,053 | $22K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -27.1% | 1,966 | $21K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +102.4% | 1,415 | $15K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | No change | 1,366 | $15K |
"% of holder's portfolio" is KROS's weight in each manager's 13F, not the share of Keros Therapeutics Inc. the manager owns.