Keros Therapeutics
KROS · NASDAQ
$11.40+$0.34 (+3.07%)TodayMarket closed ·
Prev close $11.06
Who owns KROS
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 46.4% of KROS’s shares.
- BlackRock Institutional Trust Company, N.A.10.0%
- Nantahala Capital Management, LLC7.1%
- AQR Capital Management, LLC4.9%
- Vanguard Capital Management, LLC4.2%
- Next 6 largest institutions20.2%
- All other shareholders53.6%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 1.98M | 10.00% |
| Nantahala Capital Management, LLC | 1.41M | 7.13% |
| AQR Capital Management, LLC | 967.86K | 4.89% |
| Vanguard Capital Management, LLC | 833.60K | 4.21% |
| OrbiMed Advisors, LLC | 759.15K | 3.84% |
| Federated MDTA LLC | 675.37K | 3.41% |
| Vanguard Portfolio Management, LLC | 652.63K | 3.30% |
| BlackRock Financial Management, Inc. | 650.08K | 3.28% |
| Mackenzie Financial Corporation | 628.44K | 3.18% |
| Madison Avenue Partners LP | 626.58K | 3.17% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 595.32K | 3.01% |
| iShares Russell 2000 ETF | 472.82K | 2.39% |
| BlackRock Advantage Small Cap Core Fund | 416.48K | 2.10% |
| Federated Hermes MDT Small Cap Core Fund | 382.34K | 1.93% |
| Vanguard Strategic Small-Cap Equity Fund | 258.66K | 1.31% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $41.65K (4 trades) and sold $191.13K (8 trades) of KROS on the open market.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Tanini Annita | Sale | 1.22K | $12.59K |
| Cho Esther | Sale | 4.49K | $46.15K |
| Lerner Lorena Raquel | Sale | 3.57K | $36.71K |
| Newton Charles W. | Sale | 551 | $5.68K |
| BIENAIME JEAN JACQUES | Buy | 1.00K | $10.27K |
| BIENAIME JEAN JACQUES | Buy | 1.00K | $10.61K |
| Prener Anne | Award | 14.87K | — |
| Prener Anne | Award | 13.79K | — |
| BIENAIME JEAN JACQUES | Buy | 1.00K | $10.19K |
| Newton Charles W. | Sale | 550 | $5.52K |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.15M
- Days to cover
- 5.61
- % of shares outstanding
- 5.81%
- Average daily volume
- 205.02K
- Change since last report
- −14.4%
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