Keros Therapeutics, Inc.
Total Trades
31
Buys
2
Sells
17
Largest Trade
$1M+
Insiders
8
Institutional Funds
120
Inst. Value
$1M+
Activist Filings
32
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Seehra Jasbir | CHIEF EXECUTIVE OF… | SELL | $100K–$500K | 7K | $16.17 | Feb 20, 2026 |
| Lerner Lorena Raquel | Chief Science Offi… | SELL | $50K–$100K | 4K | $16.35 | Feb 20, 2026 |
| Cho Esther | SVP, General Counsel | SELL | $50K–$100K | 5K | $16.35 | Feb 20, 2026 |
| Regnante Keith | CHIEF FINANCIAL OF… | SELL | $50K–$100K | 5K | $16.35 | Feb 20, 2026 |
| ADAR1 Capital Management, LLC | 10% Owner | BUY | $1M+ | 934K | $10.13 | Apr 12, 2025 |
| Regnante Keith | CFO | EXERCISE | $500K+ | 40K | $16.00 | Jun 12, 2023 |
| Regnante Keith | CFO | SELL | $1M+ | 40K | $46.61 | Jun 12, 2023 |
| Knowles Julius | Director | BUY | $15K–$50K | 1K | $20.98 | Jan 20, 2023 |
| Lachey Jennifer | Chief Scientific O… | SELL | $1M+ | 46K | $30.00 | Jul 19, 2022 |
| Lachey Jennifer | Chief Scientific O… | EXERCISE | $1K–$15K | 46K | $0.30 | Jul 19, 2022 |
| Lachey Jennifer | Chief Scientific O… | SELL | $50K–$100K | 2K | $30.00 | Jul 15, 2022 |
| Lachey Jennifer | Chief Scientific O… | EXERCISE | <$1K | 2K | $0.30 | Jul 15, 2022 |
| Lachey Jennifer | Chief Scientific O… | SELL | $100K–$500K | 5K | $41.90 | May 13, 2022 |
| Lachey Jennifer | Chief Scientific O… | EXERCISE | $1K–$15K | 5K | $0.30 | May 13, 2022 |
| Lachey Jennifer | Chief Scientific O… | EXERCISE | $1K–$15K | 5K | $0.30 | Apr 13, 2022 |
| Lachey Jennifer | Chief Scientific O… | SELL | $100K–$500K | 5K | $62.77 | Apr 13, 2022 |
| Rovaldi Christopher | COO | SELL | $100K–$500K | 2K | $65.00 | Apr 8, 2022 |
| Rovaldi Christopher | COO | EXERCISE | $15K–$50K | 2K | $16.00 | Apr 8, 2022 |
| Lachey Jennifer | Chief Scientific O… | EXERCISE | $1K–$15K | 8K | $0.30 | Apr 6, 2022 |
| Lachey Jennifer | Chief Scientific O… | SELL | $100K–$500K | 8K | $60.00 | Apr 6, 2022 |
| Rovaldi Christopher | COO | EXERCISE | $1K–$15K | 864 | $16.00 | Apr 5, 2022 |
| Rovaldi Christopher | COO | SELL | $15K–$50K | 864 | $57.49 | Apr 5, 2022 |
| Lachey Jennifer | Chief Scientific O… | EXERCISE | <$1K | 3K | $0.30 | Mar 15, 2022 |
| Lachey Jennifer | Chief Scientific O… | SELL | $100K–$500K | 3K | $53.38 | Mar 15, 2022 |
| Lachey Jennifer | Chief Scientific O… | SELL | $100K–$500K | 3K | $52.06 | Feb 15, 2022 |
| Lachey Jennifer | Chief Scientific O… | EXERCISE | <$1K | 3K | $0.30 | Feb 15, 2022 |
| Lachey Jennifer | Chief Scientific O… | SELL | $100K–$500K | 3K | $53.75 | Jan 13, 2022 |
| Lachey Jennifer | Chief Scientific O… | EXERCISE | <$1K | 3K | $0.30 | Jan 13, 2022 |
| Lachey Jennifer | Chief Scientific O… | EXERCISE | <$1K | 3K | $0.30 | Jan 7, 2022 |
| Lachey Jennifer | Chief Scientific O… | SELL | $100K–$500K | 3K | $60.00 | Jan 7, 2022 |
| Knowles Julius | Director | SELL | $1M+ | 48K | $57.84 | Jan 6, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 120 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.3M | $1M+ | SH |
| STATE STREET CORP | 1.1M | $1M+ | SH |
| ORBIMED ADVISORS LLC | 804K | $1M+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 768K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 592K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 557K | $1M+ | SH |
| Nantahala Capital Management, LLC | 360K | $1M+ | SH |
| Connor, Clark & Lunn Investment Management Ltd. | 321K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 296K | $1M+ | SH |
| HRT FINANCIAL LP | 261K | $1M+ | SH |
| DEUTSCHE BANK AG\ | 195K | $1M+ | SH |
| Man Group plc | 190K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 187K | $1M+ | SH |
| NOMURA HOLDINGS INC | 157K | $1M+ | SH |
| BESSEMER GROUP INC | 144K | $1M+ | SH |
| VANGUARD GROUP INC | 127K | $1M+ | SH |
| JANE STREET GROUP, LLC | 123K | $1M+ | SH |
| PANAGORA ASSET MANAGEMENT INC | 123K | $1M+ | SH |
| Y-Intercept (Hong Kong) Ltd | 117K | $1M+ | SH |
| PDT Partners, LLC | 112K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
ExodusPoint Capital Management, LP
SC 13G/A · Feb 17, 2026
0.0%
13K shares
Madison Avenue International LP
SC 13G/A · Feb 17, 2026
2.7%
824K shares
SC 13G/A · Feb 17, 2026
0.0%
0 shares
SC 13G/A · Jan 30, 2026
5.0%
1.5M shares
ExodusPoint Capital Management, LP
SC 13G · Nov 18, 2025
6.3%
1.9M shares
SC 13G · Oct 27, 2025
5.1%
1.5M shares
SC 13G · Oct 23, 2025
7.9%
2.4M shares
Pontifax Management 4 GP (2015) Ltd.
SC 13D/A · Oct 16, 2025
0.0%
0 shares
SC 13D/A · Oct 15, 2025
0.0%
0 shares
SC 13D/A · Aug 21, 2025
13.3%
5.4M shares
SC 13G · May 14, 2025
6.4%
2.6M shares
SC 13D/A · May 12, 2025
13.3%
5.4M shares
SC 13D/A · May 8, 2025
13.3%
5.4M shares
SC 13G · May 2, 2025
6.3%
2.6M shares
SC 13G · Apr 30, 2025
6.3%
2.6M shares
SC 13D/A · Apr 28, 2025
13.3%
5.4M shares
Pontifax Management 4 GP (2015) Ltd.
SC 13D/A · Apr 18, 2025
11.8%
4.8M shares
SC 13D · Apr 12, 2025
13.3%
5.4M shares
SC 13G · Feb 14, 2025
2.7%
1.1M shares
SC 13G/A · Feb 7, 2025
1.7%
704K shares
Alkeon Capital Management, LLC
SC 13G/A · Feb 13, 2024
5.0%
1.5M shares
SC 13G/A · Jan 26, 2024
6.8%
2.0M shares
SC 13D/A · Dec 13, 2023
4.2%
1.3M shares
SC 13G/A · Feb 14, 2023
0.0%
0 shares
Alkeon Capital Management, LLC
SC 13G/A · Feb 13, 2023
5.1%
1.4M shares
SC 13G/A · Feb 9, 2023
13.4%
3.7M shares
Arkin Bio Ventures Limited Partnership
SC 13G/A · Feb 2, 2023
5.0%
1.4M shares
SC 13D/A · Nov 7, 2022
4.6%
1.3M shares
Arkin Bio Ventures Limited Partnership
SC 13G/A · Apr 12, 2022
7.5%
1.8M shares
Arkin Bio Ventures Limited Partnership
SC 13G · Apr 11, 2022
7.5%
1.8M shares
SC 13G/A · Feb 14, 2022
5.5%
1.3M shares
Foresite Capital Fund IV, L.P. (“FCF IV”)
SC 13G/A · Feb 11, 2022
0.0%
0 shares