Keros TherapeuticsKROS
13F holders, Q1 2026 (March 31)151holders −15
22new positions
38sold out
7famous investors
$11.05avg. 13F price*
At the end of Q1 2026, 151 institutions reported holding Keros Therapeutics Inc. (KROS) in their 13F filings, down 15 from Q4 2025. 22 opened new positions and 38 sold out. The largest holders were BlackRock, Inc. ($26.6M), Nantahala Capital Management, LLC ($15.0M) and Vanguard Capital Management LLC ($9.2M). 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 Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 22 | $5.4M |
| Exits | 38 | $21.5M |
All 13F filers, Q4 2025 → Q1 2026: 3,454,670 shares bought and 4,861,274 shares sold, net −1,406,604 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 151 holders
| BlackRock, Inc. | 0.00% | Add +5.3% | 2,411,793 | $26.6M |
| Nantahala Capital Management, LLC | 0.94% | Add +277.4% | 1,360,419 | $15.0M |
| Vanguard Capital Management LLC | 0.00% | — | 831,421 | $9.2M |
| Orbimed Advisors LLC | 0.19% | Reduce -5.6% | 759,155 | $8.4M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -7.5% | 724,926 | $8.0M |
| Jacobs Levy Equity Management, Inc. | 0.03% | Reduce -8.1% | 706,071 | $7.8M |
| Federated Hermes, Inc. | 0.01% | Add +5.3% | 689,229 | $7.6M |
| Vanguard Portfolio Management LLC | 0.00% | — | 682,043 | $7.5M |
| Geode Capital Management, LLC | 0.00% | Add +7.3% | 681,460 | $7.5M |
| Madison Avenue Partners, LP | 0.30% | Reduce -23.9% | 626,583 | $6.9M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -55.8% | 590,249 | $6.5M |
| State Street Corp. | 0.00% | Reduce -47.8% | 561,730 | $6.2M |
| D. E. Shaw & Co. | 0.00% | Reduce -32.5% | 509,608 | $5.6M |
| Renaissance Technologies | 0.01% | Reduce -23.4% | 453,482 | $5.0M |
| Citadel Advisors | 0.00% | Reduce -13.9% | 406,666 | $4.5M |
| AQR Capital Management | 0.00% | Add +125.2% | 406,563 | $4.5M |
| Two Sigma Investments, LP | 0.00% | Add +14.3% | 363,835 | $4.0M |
| Dimensional Fund Advisors LP | 0.00% | Add +453.9% | 321,360 | $3.5M |
| Nuveen, LLC | 0.00% | Add +315.4% | 262,075 | $2.9M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Reduce -19.8% | 257,884 | $2.8M |
| Northern Trust Corp. | 0.00% | Add +1.4% | 254,187 | $2.8M |
| Man Group plc | 0.01% | Add +25.4% | 238,618 | $2.6M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -62.0% | 224,479 | $2.5M |
| Bridgeway Capital Management, LLC | 0.04% | Add +224.6% | 195,017 | $2.2M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -3.7% | 179,952 | $2.0M |
| Los Angeles Capital Management LLC | 0.01% | Add +409.9% | 172,196 | $1.9M |
| Y-Intercept (Hong Kong) Ltd | 0.03% | Add +40.1% | 164,483 | $1.8M |
| Mackenzie Financial Corp. | 0.00% | Add +196.7% | 152,450 | $1.7M |
| Wells Fargo & Company | 0.00% | Add +361.0% | 151,040 | $1.7M |
| UBS Group AG | 0.00% | Add +50.0% | 145,573 | $1.6M |
| Empowered Funds, LLC | 0.01% | New | 145,517 | $1.6M |
| Bessemer Group Inc. | 0.00% | No change | 143,853 | $1.6M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 127,302 | $1.4M |
| Morgan Stanley | 0.00% | Reduce -46.1% | 124,112 | $1.4M |
| Bank of New York Mellon Corp | 0.00% | Reduce -0.5% | 120,944 | $1.3M |
| Point72 Asset Management | 0.00% | Add +180.6% | 109,015 | $1.2M |
| Millennium Management | 0.00% | Reduce -51.5% | 106,858 | $1.2M |
| Ameriprise Financial Inc. | 0.00% | Reduce -16.6% | 102,479 | $1.1M |
| ADAR1 Capital Management, LLC | 0.07% | Add +416.3% | 97,318 | $1.1M |
| XTX Topco Ltd | 0.02% | Add +747.3% | 88,322 | $975K |
| Invesco Ltd. | 0.00% | Add +0.4% | 87,772 | $969K |
| Russell Investments Group, Ltd. | 0.00% | Add +0.7% | 81,311 | $898K |
| HRT Financial LP | 0.00% | Reduce -70.5% | 77,002 | $850K |
| Acadian Asset Management LLC | 0.00% | New | 65,436 | $721K |
| American Century Companies Inc. | 0.00% | Add +75.4% | 64,260 | $709K |
| RBF Capital, LLC | 0.03% | Reduce -23.2% | 62,800 | $693K |
| Principal Financial Group Inc. | 0.00% | New | 59,594 | $658K |
| Alliancebernstein L.P. | 0.00% | No change | 30,860 | $628K |
| Rangeley Capital, LLC | 0.65% | Reduce -43.8% | 54,400 | $601K |
| HSBC Holdings PLC | 0.00% | New | 53,986 | $599K |
| Bank of America Corp. | 0.00% | Reduce -46.4% | 53,654 | $592K |
| Deutsche Bank AG | 0.00% | Reduce -74.0% | 50,765 | $560K |
| STRS Ohio | 0.00% | Add +72.7% | 50,600 | $559K |
| Jump Financial, LLC | 0.01% | Reduce -68.7% | 50,393 | $556K |
| Public Employees Retirement System of Ohio | 0.00% | No change | 50,324 | $556K |
| Massachusetts Financial Services Co. | 0.00% | Add +12.1% | 48,998 | $541K |
| Martingale Asset Management L P | 0.01% | Add +20.9% | 47,596 | $525K |
| Prelude Capital Management, LLC | 0.04% | Add +237.6% | 46,039 | $508K |
| T. Rowe Price Associates Inc. | 0.00% | Add +54.5% | 45,876 | $507K |
| Jane Street Group, LLC | 0.00% | Reduce -72.6% | 44,457 | $491K |
| Canada Pension Plan Investment Board | 0.00% | No change | 44,100 | $487K |
| Rhumbline Advisers | 0.00% | Reduce -9.2% | 40,176 | $444K |
| Globeflex Capital L P | 0.06% | New | 37,873 | $418K |
| JPMorgan Chase & Co. | 0.00% | Add +102.2% | 37,680 | $402K |
| WINTON GROUP Ltd | 0.01% | Add +68.8% | 36,433 | $402K |
| Panagora Asset Management Inc. | 0.00% | Reduce -71.8% | 34,656 | $383K |
| Aviva PLC | 0.00% | New | 34,307 | $379K |
| PDT Partners, LLC | 0.02% | Reduce -70.8% | 32,744 | $361K |
| FMR LLC | 0.00% | Reduce -8.2% | 32,674 | $361K |
| Magnetar Financial LLC | 0.00% | New | 30,085 | $332K |
| Tudor Investment Corporation | 0.00% | Reduce -1.1% | 28,007 | $309K |
| Quantinno Capital Management LP | 0.00% | Add +12.5% | 23,759 | $262K |
| Barclays PLC | 0.00% | Reduce -69.0% | 23,157 | $256K |
| Simplex Trading, LLC | 0.01% | New | 22,288 | $246K |
| Fox Run Management, L.L.C. | 0.04% | Reduce -11.3% | 22,790 | $243K |
| Franklin Resources Inc. | 0.00% | Reduce -21.1% | 21,756 | $240K |
| LSV Asset Management | 0.00% | Reduce -9.5% | 20,900 | $231K |
| Creative Planning | 0.00% | Reduce -23.0% | 17,807 | $197K |
| MetLife Investment Management, LLC | 0.00% | No change | 16,682 | $184K |
| Engineers Gate Manager LP | 0.00% | Reduce -73.4% | 16,595 | $183K |
| State of Wisconsin Investment Board | 0.00% | Reduce -19.7% | 15,932 | $176K |
| Vanguard Global Advisers, LLC | 0.00% | — | 15,755 | $174K |
| EJF Capital LP | 0.12% | No change | 15,000 | $166K |
| Brevan Howard Capital Management LP | 0.00% | New | 14,651 | $162K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -9.3% | 13,891 | $153K |
| Mariner, LLC | 0.00% | Reduce -9.1% | 13,826 | $153K |
| Virtus Investment Advisers, LLC | 0.04% | Add +2.5% | 12,676 | $140K |
| Mercer Global Advisors Inc. | 0.00% | New | 11,742 | $130K |
| Lazard Asset Management LLC | 0.00% | New | 11,705 | $129K |
| Susquehanna International Group, LLP | 0.00% | Reduce -16.0% | 11,242 | $124K |
| Oxford Asset Management LLP | 0.05% | Reduce -48.1% | 11,153 | $123K |
| American Financial Group Inc. | 0.04% | No change | 10,105 | $112K |
| SG Americas Securities, LLC | 0.00% | Reduce -90.7% | 9,135 | $101K |
| New York State Common Retirement Fund | 0.00% | Reduce -14.1% | 9,116 | $101K |
| Cwm, LLC | 0.00% | Add +124.9% | 8,618 | $95K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 7,700 | $85K |
| BNP Paribas Financial Markets | 0.00% | Add +60.0% | 6,904 | $76K |
| China Universal Asset Management Co., Ltd. | 0.00% | Add +8.9% | 5,406 | $60K |
| Royal Bank of Canada | 0.00% | Reduce -14.3% | 4,867 | $54K |
| Sterling Capital Management LLC | 0.00% | Reduce -37.9% | 4,361 | $48K |
"% of holder's portfolio" is KROS's weight in each manager's 13F, not the share of Keros Therapeutics Inc. the manager owns.