KEROS THERAPEUTICS INC (KROS)
Institutional ownership reported to the SEC as of Q2 2026, across 25 quarters.
129
Reporting holders
$212.5M
Reported value
100.0%
Of shares outstanding
0.1%
Held as options
-13
Holder change
Institutions report 19,834,916 shares against 19,827,188 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Over 100% because an adviser and a sub-adviser can both report the same shares, and both are counted.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Nantahala Capital Management, LLC | $30.2M | 2,820,838 | 0.50% | 25q | +107.4%+$15.6M |
| BlackRock, Inc. | $29.9M | 2,794,217 | 0.00% | 8q | +15.9%+$4.1M |
| AQR CAPITAL MANAGEMENT LLC | $10.4M | 967,859 | 0.00% | 6q | +138.1%+$6.0M |
| VANGUARD CAPITAL MANAGEMENT LLC | $8.9M | 833,596 | 0.00% | 2q | HELD |
| ORBIMED ADVISORS LLC | $8.1M | 759,155 | 0.15% | 25q | HELD |
| FEDERATED HERMES, INC. | $7.5M | 700,427 | 0.01% | 7q | +1.6%+$119.8K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $7.0M | 652,635 | 0.00% | 2q | -4.3%-$314.7K |
| MACKENZIE FINANCIAL CORP | $6.7M | 628,438 | 0.01% | 5q | +312.2%+$5.1M |
| Madison Avenue Partners, LP | $6.7M | 626,583 | 0.29% | 5q | HELD |
| Qube Research & Technologies Ltd | $6.5M | 608,837 | 0.01% | 6q | -16.0%-$1.2M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $6.5M | 605,445 | 0.02% | 5q | -14.3%-$1.1M |
| STATE STREET CORP | $5.8M | 541,193 | 0.00% | 25q | -3.7%-$219.7K |
| GEODE CAPITAL MANAGEMENT, LLC | $5.5M | 510,841 | 0.00% | 25q | -25.0%-$1.8M |
| DIMENSIONAL FUND ADVISORS LP | $4.9M | 460,541 | 0.00% | 13q | +43.3%+$1.5M |
| CITADEL ADVISORS LLC | $4.4M | 396,098 | 0.00% | 23q | -2.6%-$117.2K |
| RENAISSANCE TECHNOLOGIES LLC | $3.8M | 359,086 | 0.01% | 5q | -20.8%-$1.0M |
| D. E. Shaw & Co., Inc. | $2.9M | 267,460 | 0.00% | 10q | -47.5%-$2.6M |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $2.8M | 265,017 | 0.05% | 3q | +35.9%+$749.0K |
| Nuveen, LLC | $2.7M | 247,756 | 0.00% | 6q | -5.5%-$153.2K |
| ADAR1 Capital Management, LLC | $2.6M | 246,818 | 0.12% | 11q | +153.6%+$1.6M |
| TWO SIGMA INVESTMENTS, LP | $2.6M | 246,649 | 0.00% | 11q | -32.2%-$1.3M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $2.5M | 233,175 | 0.00% | 5q | -60.5%-$3.8M |
| MILLENNIUM MANAGEMENT LLC | $2.0M | 184,822 | 0.00% | 15q | +73.0%+$834.2K |
| GOLDMAN SACHS GROUP INC | $1.9M | 177,846 | 0.00% | 24q | -20.8%-$499.0K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.7M | 158,712 | 0.00% | 25q | -11.8%-$227.3K |
| Sixth Street Partners Management Company, L.P. | $1.7M | 158,712 | 0.00% | new | NEW |
| Man Group plc | $1.7M | 155,541 | 0.00% | 6q | -34.8%-$888.9K |
| WELLS FARGO & COMPANY/MN | $1.7M | 155,480 | 0.00% | 19q | -48.5%-$1.6M |
| NORTHERN TRUST CORP | $1.6M | 153,843 | 0.00% | 25q | -39.5%-$1.1M |
| Empowered Funds, LLC | $1.5M | 142,151 | 0.01% | 2q | -2.3%-$36.0K |
| UBS Group AG | $1.5M | 137,987 | 0.00% | 23q | -5.2%-$81.2K |
| VANGUARD FIDUCIARY TRUST CO | $1.4M | 131,314 | 0.00% | 2q | +3.2%+$42.9K |
| Connor, Clark & Lunn Investment Management Ltd. | $1.4M | 127,885 | 0.00% | 7q | -50.4%-$1.4M |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $1.4M | 126,379 | 0.01% | new | NEW |
| JANE STREET GROUP, LLC | $1.2M | 115,267 | 0.00% | 14q | +159.3%+$757.7K |
| Bank of New York Mellon Corp | $1.1M | 103,339 | 0.00% | 25q | -14.6%-$188.4K |
| AMERIPRISE FINANCIAL INC | $1.1M | 101,342 | 0.00% | 5q | -50.6%-$1.1M |
| AMERICAN CENTURY COMPANIES INC | $906.1K | 84,680 | 0.00% | 4q | +31.8%+$218.5K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $902.8K | 84,372 | 0.00% | 5q | -51.0%-$939.7K |
| MORGAN STANLEY | $848.4K | 79,286 | 0.00% | 25q | -36.1%-$479.6K |
| Invesco Ltd. | $765.7K | 71,563 | 0.00% | 16q | -18.5%-$173.4K |
| HSBC HOLDINGS PLC | $761.5K | 69,926 | 0.00% | 2q | +29.5%+$173.6K |
| MARTINGALE ASSET MANAGEMENT L P | $725.4K | 67,796 | 0.02% | 5q | +42.4%+$216.1K |
| PRINCIPAL FINANCIAL GROUP INC | $682.7K | 63,807 | 0.00% | 2q | +7.1%+$45.1K |
| RBF Capital, LLC | $672.0K | 62,800 | 0.03% | 6q | HELD |
| Russell Investments Group, Ltd. | $651.5K | 60,892 | 0.00% | 16q | -25.1%-$218.5K |
| XTX Topco Ltd | $637.0K | 59,531 | 0.01% | 3q | -32.6%-$308.1K |
| Jain Global LLC | $633.5K | 59,209 | 0.00% | new | NEW |
| PANAGORA ASSET MANAGEMENT INC | $599.0K | 55,985 | 0.00% | 4q | +61.5%+$228.2K |
| IEQ CAPITAL, LLC | $595.7K | 55,675 | 0.00% | new | NEW |
| MERCER GLOBAL ADVISORS INC /ADV | $592.4K | 55,368 | 0.00% | 2q | +371.5%+$466.8K |
| Rangeley Capital, LLC | $582.1K | 54,400 | 0.53% | 6q | HELD |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $538.5K | 50,324 | 0.00% | 5q | HELD |
| BNP PARIBAS FINANCIAL MARKETS | $533.4K | 49,851 | 0.00% | 7q | +622.1%+$459.5K |
| BARCLAYS PLC | $531.8K | 49,704 | 0.00% | 18q | +114.6%+$284.1K |
| Y-Intercept (Hong Kong) Ltd | $515.5K | 48,176 | 0.01% | 5q | -70.7%-$1.2M |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $504.2K | 47,121 | 0.00% | 3q | -3.8%-$20.1K |
| DEUTSCHE BANK AG\ | $500.8K | 46,802 | 0.00% | 25q | -7.8%-$42.4K |
| Susquehanna Portfolio Strategies, LLC | $479.6K | 44,824 | 0.01% | new | NEW |
| Mariner, LLC | $416.2K | 38,895 | 0.00% | 4q | +181.3%+$268.3K |
| FMR LLC | $378.0K | 35,328 | 0.00% | 25q | +8.1%+$28.4K |
| PRELUDE CAPITAL MANAGEMENT, LLC | $374.9K | 35,039 | 0.03% | 3q | -23.9%-$117.7K |
| MARSHALL WACE, LLP | $370.2K | 34,600 | 0.00% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $366.5K | 33,200 | 0.00% | 25q | +7.6%+$25.8K |
| RHUMBLINE ADVISERS | $350.5K | 32,755 | 0.00% | 25q | -18.5%-$79.4K |
| BANK OF AMERICA CORP /DE/ | $334.2K | 31,230 | 0.00% | 25q | -41.8%-$239.9K |
| Squarepoint Ops LLC | $333.9K | 31,204 | 0.00% | new | NEW |
| Quantinno Capital Management LP | $288.6K | 26,971 | 0.00% | 4q | +13.5%+$34.4K |
| CANADA PENSION PLAN INVESTMENT BOARD | $247.2K | 23,100 | 0.00% | 5q | -47.6%-$224.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $225.2K | 21,043 | 0.00% | 11q | +87.2%+$104.9K |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $210.5K | 17,841 | 0.00% | new | NEW |
| Cerity Partners LLC | $195.8K | 18,301 | 0.00% | new | NEW |
| Creative Planning | $178.8K | 16,708 | 0.00% | 6q | -6.2%-$11.8K |
| MetLife Investment Management, LLC | $178.5K | 16,682 | 0.00% | 25q | HELD |
| Jump Financial, LLC | $164.8K | 15,400 | 0.00% | 3q | -69.4%-$374.4K |
| EJF Capital LP | $160.5K | 15,000 | 0.11% | 3q | HELD |
| JPMORGAN CHASE & CO | $159.8K | 14,624 | 0.00% | 25q | -61.2%-$252.0K |
| nVerses Capital, LLC | $140.4K | 13,124 | 0.22% | new | NEW |
| Engineers Gate Manager LP | $130.7K | 12,215 | 0.00% | 10q | -26.4%-$46.9K |
| PDT Partners, LLC | $122.0K | 11,405 | 0.01% | 6q | -65.2%-$228.3K |
| Point72 Asset Management, L.P. | $111.2K | 10,393 | 0.00% | 3q | -90.5%-$1.1M |
| AMERICAN FINANCIAL GROUP INC | $108.1K | 10,105 | 0.04% | 21q | HELD |
| Arax Advisory Partners | $107.5K | 10,047 | 0.00% | 4q | +2482.8%+$103.3K |
| NEW YORK STATE COMMON RETIREMENT FUND | $97.5K | 9,116 | 0.00% | 25q | HELD |
| CITIGROUP INC | $96.5K | 9,015 | 0.00% | 25q | +308.3%+$72.8K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $91.1K | 8,511 | 0.00% | 4q | -38.7%-$57.6K |
| Legal & General Group Plc | $90.0K | 8,410 | 0.00% | 25q | +220.9%+$61.9K |
| Vanguard Global Advisers, LLC | $85.0K | 7,945 | 0.00% | 2q | -49.6%-$83.6K |
| Police & Firemen's Retirement System of New Jersey | $82.4K | 7,700 | 0.00% | 7q | HELD |
| NISA INVESTMENT ADVISORS, LLC | $42.7K | 3,989 | 0.00% | 16q | +82.2%+$19.3K |
| SIMPLEX TRADING, LLC | $41.7K | options only | 0.00% | 10q | OPTIONS |
| ROYAL BANK OF CANADA | $34.0K | 3,174 | 0.00% | 25q | -34.7%-$18.1K |
| China Universal Asset Management Co., Ltd. | $33.7K | 3,150 | 0.00% | 16q | -41.7%-$24.1K |
| IFP Advisors, Inc | $32.2K | 3,013 | 0.00% | 5q | +5.6%+$1.7K |
| Ameritas Investment Partners, Inc. | $25.4K | 2,372 | 0.00% | 25q | HELD |
| OSAIC HOLDINGS, INC. | $22.0K | 2,053 | 0.00% | 5q | HELD |
| Tower Research Capital LLC (TRC) | $21.0K | 1,966 | 0.00% | 25q | -27.1%-$7.8K |
| Integrated Wealth Concepts LLC | $17.0K | 1,587 | 0.00% | new | NEW |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $15.1K | 1,415 | 0.00% | 2q | +102.4%+$7.7K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $14.6K | 1,366 | 0.00% | 3q | HELD |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-29 | 13G/A | BlackRock, Inc. | 8.4% |
| 2026-07-17 | 13G | BlackRock Portfolio Management LLC | 5.7% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 129 | $212.5M | 19,834,916 | 17 | 40 | 50 | 0.1% |
| Q1 2026 | 142 | $208.8M | 18,488,004 | 21 | 45 | 51 | 2.1% |
| Q4 2025 | 153 | $412.2M | 19,710,944 | 34 | 36 | 66 | 3.6% |
| Q3 2025 | 145 | $574.4M | 35,353,834 | 27 | 52 | 39 | 2.8% |
| Q2 2025 | 128 | $502.3M | 35,747,587 | 22 | 54 | 34 | 5.1% |
| Q1 2025 | 146 | $452.4M | 36,535,979 | 44 | 44 | 40 | 5.8% |
| Q4 2024 | 154 | $588.3M | 35,794,761 | 27 | 69 | 30 | 3.7% |
| Q3 2024 | 152 | $1.9B | 33,434,981 | 25 | 62 | 42 | 0.3% |
| Q2 2024 | 141 | $1.4B | 30,661,649 | 19 | 56 | 38 | 0.1% |
| Q1 2024 | 139 | $2.0B | 30,784,449 | 40 | 52 | 37 | 0.4% |
| Q4 2023 | 110 | $1.0B | 25,959,695 | 19 | 42 | 21 | 0.2% |
| Q3 2023 | 95 | $687.6M | 21,527,704 | 4 | 43 | 26 | 0.2% |
| Q2 2023 | 107 | $833.3M | 20,743,030 | 12 | 53 | 23 | 0.1% |
| Q1 2023 | 107 | $1.0B | 24,255,340 | 19 | 37 | 30 | 0.2% |
| Q4 2022 | 100 | $861.3M | 17,847,728 | 22 | 35 | 25 | 0.5% |
| Q3 2022 | 111 | $685.9M | 18,079,557 | 25 | 37 | 23 | 0.8% |
| Q2 2022 | 102 | $481.5M | 17,360,740 | 19 | 42 | 17 | 0.4% |
| Q1 2022 | 106 | $898.7M | 16,426,369 | 13 | 34 | 24 | 0.6% |
| Q4 2021 | 99 | $954.3M | 16,174,616 | 23 | 25 | 22 | 0.9% |
| Q3 2021 | 88 | $545.4M | 13,800,935 | 17 | 23 | 22 | 0.0% |
| Q2 2021 | 79 | $599.7M | 14,120,408 | 13 | 38 | 15 | 0.0% |
| Q1 2021 | 83 | $887.0M | 14,412,092 | 15 | 28 | 23 | 0.0% |
| Q4 2020 | 81 | $1.1B | 16,036,174 | 35 | 34 | 6 | 0.0% |
| Q3 2020 | 49 | $454.6M | 11,780,757 | 6 | 16 | 14 | 0.0% |
| Q2 2020 | 51 | $409.8M | 10,926,163 | 51 | 0 | 0 | 0.0% |