Who owns Keros Therapeutics, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from SEC filings.
Institutional ownership of KROS from SEC Form 13F filings across 103 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 103 institutions disclosed 12.7M shares of Keros Therapeutics, Inc. worth $132.4M — about 64.1% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
103
13F holders
$132.4M
value, 2026 filers
64.1%
of shares outstanding (12.7M sh)
13
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of KROS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.8M | $29.9M | 0.0% | 14.1% | +15.9% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 833,596 | $8.9M | 0.0% | 4.2% | -49.9% |
| 3 | ORBIMED ADVISORS LLC | 759,155 | $8.1M | 0.2% | 3.8% | 0.0% |
| 4 | FEDERATED HERMES, INC. | 700,427 | $7.5M | 0.0% | 3.5% | +1.6% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 652,635 | $7.0M | 0.0% | 3.3% | -4.3% |
| 6 | MACKENZIE FINANCIAL CORP | 628,438 | $6.7M | 0.0% | 3.2% | +312.2% |
| 7 | Qube Research & Technologies Ltd | 608,837 | $6.5M | 0.0% | 3.1% | -16.0% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 510,841 | $5.5M | 0.0% | 2.6% | -25.0% |
| 9 | CITADEL ADVISORS LLC | 396,098 | $4.2M | 0.0% | 2% | -2.6% |
| 10 | D. E. Shaw & Co., Inc. | 267,460 | $2.9M | 0.0% | 1.4% | -47.5% |
| 11 | Nuveen, LLC | 247,756 | $2.7M | 0.0% | 1.3% | -5.5% |
| 12 | TWO SIGMA INVESTMENTS, LP | 246,649 | $2.6M | 0.0% | 1.2% | -32.2% |
| 13 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 233,175 | $2.5M | 0.0% | 1.2% | -60.5% |
| 14 | MILLENNIUM MANAGEMENT LLC | 184,822 | $2.0M | 0.0% | 0.9% | +73.0% |
| 15 | GOLDMAN SACHS GROUP INC | 177,846 | $1.9M | 0.0% | 0.9% | -20.8% |
| 16 | Sixth Street Partners Management Company, L.P.NEW | 158,712 | $1.7M | 0.3% | 0.8% | new |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 158,712 | $1.7M | 0.0% | 0.8% | -11.8% |
| 18 | Man Group plc | 155,541 | $1.7M | 0.0% | 0.8% | -34.8% |
| 19 | WELLS FARGO & COMPANY/MN | 155,480 | $1.7M | 0.0% | 0.8% | +2.9% |
| 20 | NORTHERN TRUST CORP | 153,843 | $1.6M | 0.0% | 0.8% | -39.5% |
| 21 | BESSEMER GROUP INC | 143,853 | $1,539 | 0.0% | 0.7% | 0.0% |
| 22 | UBS Group AG | 137,987 | $1.5M | 0.0% | 0.7% | -5.2% |
| 23 | VANGUARD FIDUCIARY TRUST CO | 131,314 | $1.4M | 0.0% | 0.7% | +3.2% |
| 24 | Connor, Clark & Lunn Investment Management Ltd. | 127,885 | $1.4M | 0.0% | 0.6% | -50.4% |
| 25 | O'SHAUGHNESSY ASSET MANAGEMENT, LLCNEW | 126,379 | $1.4M | 0.0% | 0.6% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.