KROS
insider transactionsKeros Therapeutics, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-16.8K
22.5K buy · 39.3K sell
Net value · 365d
-$219.3K
$406.3K in · $625.6K out
Sentiment · 365d
Net selling
39% buying · 61% selling
Open-market trades · 365d
20
22.5K buy · 39.3K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Buy·P
Director · 10b5-1
$10.2K
1.0K sh · $10.19
Own +6%
-
Sell·S
Director · 10b5-1
$5.5K
550 sh · $10.04
Own -4%
-
Grant·A
Director
$0
9.9K sh
Own New
-
Grant·A
Director
$0
6.1K sh
Own New
-
Grant·A
Director
$0
1.6K sh
Own +7%
-
Buy·P
Director
$19.3K
1.0K sh · $19.27
Own +2%
-
Buy·P
Director
$68.1K
3.5K sh · $19.46
Own +9%
-
Buy·P
Director
$116.9K
6.0K sh · $19.48
Own +18%
-
Sell·S
Director
$194.1K
10.0K sh · $19.41
Own -23%
-
Sell·S
Director
$9.7K
500 sh · $19.44
Own -1%
-
Sell·S
Director · 10b5-1
$28.1K
2.6K sh · $10.72
Own -21%
-
Sell·S
Director · 10b5-1
$28.2K
2.6K sh · $10.73
Own -19%
-
Sell·S
Director · 10b5-1
$28.2K
2.6K sh · $10.73
Own -21%
-
Grant·A
Director
$0
7.4K sh
Own New
-
Grant·A
Director
$0
7.1K sh
Own +111%
-
Grant·A
Director
$0
7.4K sh
Own New
-
Grant·A
Director
$0
7.1K sh
Own +136%
-
Grant·A
Director
$0
7.4K sh
Own New
-
Grant·A
Director
$0
7.1K sh
Own +136%
-
Grant·A
Director
$0
7.4K sh
Own New
-
Grant·A
Director
$0
7.1K sh
Own +136%
-
Grant·A
Director
$0
7.4K sh
Own New
-
Grant·A
Director
$0
7.1K sh
Own +76%
-
Exercise·M
Director · 10b5-1
$0
15.0K sh
Own New
-
Other·F
Director · 10b5-1
$1.3M
13.1K sh · $97.10
Own -36%
-
Exercise·M
Director · 10b5-1
$1.3M
15.0K sh · $84.53
Own +72%
-
Buy·P
Director · 10b5-1
$10.6K
1.0K sh · $10.58
Own +12%
-
Buy·P
Director
$103.5K
5.0K sh · $20.70
Own +13%
-
Buy·P
Director · 10b5-1
$11.7K
1.0K sh · $11.70
Own +13%
-
Exercise·M
Jasbir Seehra KEY
CHIEF EXECUTIVE OFFICER
$0
55.0K sh
Own +39%
-
Exercise·M
Jasbir Seehra KEY
CHIEF EXECUTIVE OFFICER
$16.5K
55.0K sh · $0.30
Own +14%
-
Buy·P
Director
$21.6K
1.0K sh · $21.55
Own +3%
-
Buy·P
Director
$22.1K
1.0K sh · $22.12
Own +3%
-
Grant·A
Director
$0
14.8K sh
Own New
-
Grant·A
Director
$0
13.2K sh
Own New
-
Buy·P
Director · 10b5-1
$22.4K
2.0K sh · $11.21
Own +37%
-
Other·D
Director
—
32.2K sh
Own -100%
-
Other·D
Director
—
7.7K sh
Own -100%
-
Other·D
Director
—
4.6K sh
Own -100%
-
Other·D
Director
—
1.1K sh
Own -100%
-
Other·D
Director
—
1.6K sh
Own -100%
-
Other·D
Director
—
560 sh
Own -100%
-
Other·D
Director
—
1.1K sh
Own -100%
-
Other·D
Director
—
484 sh
Own -100%
-
Other·D
Director
—
478 sh
Own -100%
-
Other·D
Director
—
938 sh
Own -100%
-
Other·D
Director
—
498 sh
Own -100%
-
Other·D
Director
—
2.8K sh
Own -100%
-
Other·U
Director
—
5.0K sh
-
Grant·A
Chief Legal Officer
$0
80.0K sh
Own New
-
Grant·A
Chief Scientific Officer
$0
75.0K sh
Own New
-
Grant·A
Jasbir Seehra KEY
CHIEF EXECUTIVE OFFICER
$0
100.0K sh
Own New
-
Grant·A
Jasbir Seehra KEY
CHIEF EXECUTIVE OFFICER
$0
217.0K sh
Own New
-
Grant·A
Keith Regnante KEY
CHIEF FINANCIAL OFFICER
$0
60.0K sh
Own New
-
Grant·A
Chief Legal Officer
$0
80.0K sh
Own New
-
Sell·S
Jasbir Seehra KEY
CHIEF EXECUTIVE OFFICER
$113.4K
7.0K sh · $16.17
Own -2%
-
Sell·S
Chief Science Officer
$63.3K
3.9K sh · $16.35
Own -11%
-
Sell·S
Keith Regnante KEY
CHIEF FINANCIAL OFFICER
$77.5K
4.7K sh · $16.35
Own -11%
-
Sell·S
SVP, General Counsel
$77.6K
4.7K sh · $16.35
Own -11%
-
Grant·A
Director
$0
5.0K sh
Own New
-
Grant·A
Jasbir Seehra KEY
CHIEF EXECUTIVE OFFICER
$0
62.5K sh
Own New
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 15, 2026 | Jean Jacques Bienaime 10b5-1 | Buy P | 1.0K | $10.2K |
| Jun 11, 2026 | Charles W. Newton 10b5-1 | Sell S | 550 | $5.5K |
| Jun 10, 2026 | Jean Jacques Bienaime | Grant A | 9.9K | $0 |
| Jun 8, 2026 | Jean Jacques Bienaime | Grant A | 6.1K | $0 |
| Jun 8, 2026 | Jean Jacques Bienaime | Grant A | 1.6K | $0 |
| Jun 5, 2026 | Jean Jacques Bienaime | Buy P | 1.0K | $19.3K |
| Jun 5, 2026 | Jean Jacques Bienaime | Buy P | 3.5K | $68.1K |
| Jun 5, 2026 | Jean Jacques Bienaime | Buy P | 6.0K | $116.9K |
| Jun 5, 2026 | Jean Jacques Bienaime | Sell S | 10.0K | $194.1K |
| Jun 5, 2026 | Jean Jacques Bienaime | Sell S | 500 | $9.7K |
| Jun 4, 2026 | Alpna Seth 10b5-1 | Sell S | 2.6K | $28.1K |
| Jun 4, 2026 | Julius Knowles 10b5-1 | Sell S | 2.6K | $28.2K |
| Jun 4, 2026 | Nima Farzan 10b5-1 | Sell S | 2.6K | $28.2K |
| Jun 3, 2026 | Julius Knowles | Grant A | 7.4K | $0 |
| Jun 3, 2026 | Julius Knowles | Grant A | 7.1K | $0 |
| Jun 3, 2026 | Alpna Seth | Grant A | 7.4K | $0 |
| Jun 3, 2026 | Alpna Seth | Grant A | 7.1K | $0 |
| Jun 3, 2026 | Mary Ann Gray | Grant A | 7.4K | $0 |
| Jun 3, 2026 | Mary Ann Gray | Grant A | 7.1K | $0 |
| Jun 3, 2026 | Nima Farzan | Grant A | 7.4K | $0 |
| Jun 3, 2026 | Nima Farzan | Grant A | 7.1K | $0 |
| Jun 3, 2026 | Jean Jacques Bienaime | Grant A | 7.4K | $0 |
| Jun 3, 2026 | Jean Jacques Bienaime | Grant A | 7.1K | $0 |
| May 26, 2026 | Jean Jacques Bienaime 10b5-1 | Exercise M | 15.0K | $0 |
| May 26, 2026 | Jean Jacques Bienaime 10b5-1 | Other F | 13.1K | $1.3M |
| May 26, 2026 | Jean Jacques Bienaime 10b5-1 | Exercise M | 15.0K | $1.3M |
| May 15, 2026 | Jean Jacques Bienaime 10b5-1 | Buy P | 1.0K | $10.6K |
| May 15, 2026 | Jean Jacques Bienaime | Buy P | 5.0K | $103.5K |
| Apr 15, 2026 | Jean Jacques Bienaime 10b5-1 | Buy P | 1.0K | $11.7K |
| Apr 2, 2026 | Jasbir Seehra KEY | Exercise M | 55.0K | $0 |
| Apr 2, 2026 | Jasbir Seehra KEY | Exercise M | 55.0K | $16.5K |
| Mar 11, 2026 | Jean Jacques Bienaime | Buy P | 1.0K | $21.6K |
| Mar 10, 2026 | Jean Jacques Bienaime | Buy P | 1.0K | $22.1K |
| Mar 9, 2026 | Charles W. Newton | Grant A | 14.8K | $0 |
| Mar 9, 2026 | Charles W. Newton | Grant A | 13.2K | $0 |
| Mar 9, 2026 | Jean Jacques Bienaime 10b5-1 | Buy P | 2.0K | $22.4K |
| Mar 3, 2026 | Mary Ann Gray | Other D | 32.2K | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 7.7K | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 4.6K | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 1.1K | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 1.6K | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 560 | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 1.1K | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 484 | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 478 | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 938 | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 498 | — |
| Mar 3, 2026 | Mary Ann Gray | Other D | 2.8K | — |
| Mar 3, 2026 | Mary Ann Gray | Other U | 5.0K | — |
| Feb 24, 2026 | Esther Cho | Grant A | 80.0K | $0 |
| Feb 24, 2026 | Lorena Raquel Lerner | Grant A | 75.0K | $0 |
| Feb 24, 2026 | Jasbir Seehra KEY | Grant A | 100.0K | $0 |
| Feb 24, 2026 | Jasbir Seehra KEY | Grant A | 217.0K | $0 |
| Feb 24, 2026 | Keith Regnante KEY | Grant A | 60.0K | $0 |
| Feb 24, 2026 | Esther Cho | Grant A | 80.0K | $0 |
| Feb 19, 2026 | Jasbir Seehra KEY | Sell S | 7.0K | $113.4K |
| Feb 18, 2026 | Lorena Raquel Lerner | Sell S | 3.9K | $63.3K |
| Feb 18, 2026 | Keith Regnante KEY | Sell S | 4.7K | $77.5K |
| Feb 18, 2026 | Esther Cho | Sell S | 4.7K | $77.6K |
| Jan 30, 2026 | Mary Ann Gray | Grant A | 5.0K | $0 |
| Jan 7, 2026 | Jasbir Seehra KEY | Grant A | 62.5K | $0 |
About KROS insider trading
This page tracks insider transactions for Keros Therapeutics, Inc. (KROS) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.