KRRO
Korro Bio, Inc.$13.90-0.30 (-2.11%)Prev Close$14.20·MCap$115.8M·P/E—·Vol55.7K·Yield—
▲
Buys (12M)
12
$21.68M
▼
Sells (12M)
15
$5.70M
◆
Net Activity
Net Buyer
$15.98M
●
Active Insiders
16
last 12 mo
Over the past 12 months, insider activity at Korro Bio, Inc. (KRRO) has been dominated by buying, with 12 insider purchases totaling $21.68M and 15 insider sales totaling $5.70M. The most recent insider transaction was by Lynx1 Capital Management LP (10 percent owner), who purchased $884.8K worth of shares on Oct 26, 2026. Korro Bio, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $115.8M.
KRRO Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Oct 26, 2026 | Lynx1 Capital Management LP | 10 percent owner | Buy | 79,809 | $11.09 | $884.8K0.5% OS | 1,624,789 |
| Sep 15, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 48,690 | $14.09 | $686.2K | 672,498 |
| Sep 14, 2026 | Dolan Oliver | officer: Senior Vice President, Finance | Sell | 5 | $13.72 | $68.58 | 16,241 |
| Sep 10, 2026 | Dolan Oliver | officer: Senior Vice President, Finance | Sell | 7,353 | $13.51 | $99.4K | 16,252-31% |
| Aug 28, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 300 | $13.96 | $4.2K | 680,948 |
| Aug 21, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 28,468 | $14.00 | $398.6K | 681,197 |
| Aug 13, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 2,143 | $13.96 | $29.9K | 704,781 |
| Aug 13, 2026 | Lynx1 Capital Management LP | 10 percent owner | Buy | 6,684 | $11.79 | $78.8K | 1,544,980 |
| Aug 5, 2026 | Aiyar Ram | director, officer: President and CEO | Sell | 5,802 | $10.84 | $62.9K | 69,046 |
| Jul 7, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 110,023 | $14.02 | $1.54M1.1% OS | 707,373 |
| Jun 24, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 171,405 | $14.34 | $2.46M1.7% OS | 936,252 |
| Jun 17, 2026 | Vincent Loic A | officer: Chief Scientific Officer | Sell | 3,418 | $10.83 | $37.0K | 18,297 |
| Jun 17, 2026 | Cerio Jeffrey | officer: General Counsel | Sell | 6,609 | $10.83 | $71.6K | 35,293 |
| Jun 17, 2026 | Chappell Todd | officer: Chief Operating Officer | Sell | 3,168 | $10.83 | $34.3K | 16,964 |
| Jun 17, 2026 | Dolan Oliver | officer: Senior Vice President, Finance | Sell | 3,383 | $10.83 | $36.6K | 18,099 |
| Jun 2, 2026 | Aiyar Ram | director, officer: President and CEO | Sell | 15,152 | $12.98 | $196.7K | 74,848 |
| Jun 1, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 2,860 | $13.95 | $39.9K | 939,634 |
| Apr 2, 2026 | Lynx1 Capital Management LP | 10 percent owner | Buy | 520 | $10.60 | $5.5K | 1,538,296 |
| Mar 12, 2026 | BASKETT FOREST | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Chang Carmen | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Florence Anthony A. Jr. | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Makhzoumi Mohamad | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Mathers Edward T | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | New Enterprise Associates 17, L.P. | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | SANDELL SCOTT D | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Walker Paul Edward | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Yang Rick | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Nov 12, 2024 | Agarwal Vineet | Chief Financial Officer | Sell | 800 | $70.00 | $56.0K | 0Exit |
| Oct 18, 2024 | Agarwal Vineet | Chief Financial Officer | Sell | 10,216 | $78.26 | $799.5K | 8,193-55% |
| Apr 24, 2024 | New Enterprise Associates 17, L.P. | Buy | 17,857 | $56.00 | $1000.0K | 1,090,793 | |
| Apr 23, 2024 | Atlas Venture Opportunity Fund II, L.P. | Buy | 17,857 | $56.00 | $1000.0K | 195,074 | |
| Nov 27, 2023 | Lucchino David L. | Sell | 1,156 | $37.69 | $43.6K | 23,196 | |
| Nov 22, 2023 | Lucchino David L. | Sell | 968 | $41.98 | $40.6K | 24,237 | |
| Aug 22, 2023 | Lucchino David L. | President and CEO | Sell | 5,922 | $0.55 | $3.2K | 636,801 |
| Aug 22, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 464 | $0.58 | $268.62 | 48,694 |
| Aug 18, 2023 | Lucchino David L. | President and CEO | Sell | 5,628 | $0.64 | $3.6K | 642,399 |
| Aug 18, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 464 | $0.65 | $299.38 | 49,151 |
| Aug 16, 2023 | Lucchino David L. | President and CEO | Sell | 5,510 | $0.65 | $3.6K | 647,923 |
| Aug 16, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 466 | $0.64 | $300.52 | 49,613 |
| Aug 14, 2023 | Lucchino David L. | President and CEO | Sell | 5,523 | $0.68 | $3.7K | 653,537 |
| Aug 14, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 487 | $0.64 | $311.68 | 50,091 |
| Aug 10, 2023 | Lucchino David L. | President and CEO | Sell | 5,608 | $0.68 | $3.8K | 659,125 |
| Aug 10, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 479 | $0.67 | $318.55 | 50,576 |
| Aug 9, 2023 | Lucchino David L. | President and CEO | Sell | 5,407 | $0.68 | $3.7K | 664,792 |
| Aug 9, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 455 | $0.68 | $309.55 | 51,052 |
| Aug 4, 2023 | Lucchino David L. | President and CEO | Sell | 5,266 | $0.56 | $2.9K | 670,021 |
| Aug 4, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 463 | $0.53 | $243.11 | 51,504 |
| Aug 2, 2023 | Lucchino David L. | President and CEO | Sell | 5,475 | $0.49 | $2.7K | 675,407 |
| Aug 2, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 460 | $0.49 | $225.24 | 51,973 |
| Jul 31, 2023 | Loose Christopher R. | Chief Scientific Officer | Sell | 2,717 | $0.50 | $1.3K | 184,994 |
Showing 1–50 of 98
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KRRO Insider Buying Activity
The following table shows recent insider purchases of Korro Bio, Inc. (KRRO) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Oct 26, 2026 | Lynx1 Capital Management LP | 10 percent owner | Buy | 79,809 | $11.09 | $884.8K0.5% OS | 1,624,789 |
| Aug 13, 2026 | Lynx1 Capital Management LP | 10 percent owner | Buy | 6,684 | $11.79 | $78.8K | 1,544,980 |
| Apr 2, 2026 | Lynx1 Capital Management LP | 10 percent owner | Buy | 520 | $10.60 | $5.5K | 1,538,296 |
| Mar 12, 2026 | BASKETT FOREST | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Chang Carmen | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Florence Anthony A. Jr. | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Makhzoumi Mohamad | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Mathers Edward T | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | New Enterprise Associates 17, L.P. | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | SANDELL SCOTT D | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Walker Paul Edward | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Mar 12, 2026 | Yang Rick | 10 percent owner | Buy | 207,100 | $11.11 | $2.30M2.2% OS | 1,297,893 |
| Apr 24, 2024 | New Enterprise Associates 17, L.P. | Buy | 17,857 | $56.00 | $1000.0K | 1,090,793 | |
| Apr 23, 2024 | Atlas Venture Opportunity Fund II, L.P. | Buy | 17,857 | $56.00 | $1000.0K | 195,074 |
KRRO Insider Selling Activity
The following table shows recent insider sales of Korro Bio, Inc. (KRRO) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 48,690 | $14.09 | $686.2K | 672,498 |
| Sep 14, 2026 | Dolan Oliver | officer: Senior Vice President, Finance | Sell | 5 | $13.72 | $68.58 | 16,241 |
| Sep 10, 2026 | Dolan Oliver | officer: Senior Vice President, Finance | Sell | 7,353 | $13.51 | $99.4K | 16,252-31% |
| Aug 28, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 300 | $13.96 | $4.2K | 680,948 |
| Aug 21, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 28,468 | $14.00 | $398.6K | 681,197 |
| Aug 13, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 2,143 | $13.96 | $29.9K | 704,781 |
| Aug 5, 2026 | Aiyar Ram | director, officer: President and CEO | Sell | 5,802 | $10.84 | $62.9K | 69,046 |
| Jul 7, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 110,023 | $14.02 | $1.54M1.1% OS | 707,373 |
| Jun 24, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 171,405 | $14.34 | $2.46M1.7% OS | 936,252 |
| Jun 17, 2026 | Vincent Loic A | officer: Chief Scientific Officer | Sell | 3,418 | $10.83 | $37.0K | 18,297 |
| Jun 17, 2026 | Cerio Jeffrey | officer: General Counsel | Sell | 6,609 | $10.83 | $71.6K | 35,293 |
| Jun 17, 2026 | Chappell Todd | officer: Chief Operating Officer | Sell | 3,168 | $10.83 | $34.3K | 16,964 |
| Jun 17, 2026 | Dolan Oliver | officer: Senior Vice President, Finance | Sell | 3,383 | $10.83 | $36.6K | 18,099 |
| Jun 2, 2026 | Aiyar Ram | director, officer: President and CEO | Sell | 15,152 | $12.98 | $196.7K | 74,848 |
| Jun 1, 2026 | FORMELA JEAN FRANCOIS | director | Sell | 2,860 | $13.95 | $39.9K | 939,634 |
| Nov 12, 2024 | Agarwal Vineet | Chief Financial Officer | Sell | 800 | $70.00 | $56.0K | 0Exit |
| Oct 18, 2024 | Agarwal Vineet | Chief Financial Officer | Sell | 10,216 | $78.26 | $799.5K | 8,193-55% |
| Nov 27, 2023 | Lucchino David L. | Sell | 1,156 | $37.69 | $43.6K | 23,196 | |
| Nov 22, 2023 | Lucchino David L. | Sell | 968 | $41.98 | $40.6K | 24,237 | |
| Aug 22, 2023 | Lucchino David L. | President and CEO | Sell | 5,922 | $0.55 | $3.2K | 636,801 |
| Aug 22, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 464 | $0.58 | $268.62 | 48,694 |
| Aug 18, 2023 | Lucchino David L. | President and CEO | Sell | 5,628 | $0.64 | $3.6K | 642,399 |
| Aug 18, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 464 | $0.65 | $299.38 | 49,151 |
| Aug 16, 2023 | Lucchino David L. | President and CEO | Sell | 5,510 | $0.65 | $3.6K | 647,923 |
| Aug 16, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 466 | $0.64 | $300.52 | 49,613 |
| Aug 14, 2023 | Lucchino David L. | President and CEO | Sell | 5,523 | $0.68 | $3.7K | 653,537 |
| Aug 14, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 487 | $0.64 | $311.68 | 50,091 |
| Aug 10, 2023 | Lucchino David L. | President and CEO | Sell | 5,608 | $0.68 | $3.8K | 659,125 |
| Aug 10, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 479 | $0.67 | $318.55 | 50,576 |
| Aug 9, 2023 | Lucchino David L. | President and CEO | Sell | 5,407 | $0.68 | $3.7K | 664,792 |
| Aug 9, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 455 | $0.68 | $309.55 | 51,052 |
| Aug 4, 2023 | Lucchino David L. | President and CEO | Sell | 5,266 | $0.56 | $2.9K | 670,021 |
| Aug 4, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 463 | $0.53 | $243.11 | 51,504 |
| Aug 2, 2023 | Lucchino David L. | President and CEO | Sell | 5,475 | $0.49 | $2.7K | 675,407 |
| Aug 2, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 460 | $0.49 | $225.24 | 51,973 |
| Jul 31, 2023 | Loose Christopher R. | Chief Scientific Officer | Sell | 2,717 | $0.50 | $1.3K | 184,994 |
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