KRRO
Korro Bio, Inc.$12.91-0.35 (-2.68%)Prev Close$13.27·MCap$115.8M·P/E—·Vol104.2K·Yield—
▲
Buys (12M)
10
$20.71M
▼
Sells (12M)
8
$4.42M
◆
Net Activity
Net Buyer
$16.30M
●
Active Insiders
16
last 12 mo
Over the past 12 months, insider activity at Korro Bio, Inc. (KRRO) has been dominated by buying, with 10 insider purchases totaling $20.71M and 8 insider sales totaling $4.42M. The most recent insider transaction was by FORMELA JEAN FRANCOIS (director), who sold $1.54M worth of shares on Jul 7, 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 |
|---|---|---|---|---|---|---|---|
| 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 |
| Jul 31, 2023 | Lucchino David L. | President and CEO | Sell | 5,438 | $0.49 | $2.7K | 680,730 |
| Jul 31, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 450 | $0.50 | $225.12 | 52,418 |
| Jul 27, 2023 | Loose Christopher R. | Chief Scientific Officer | Sell | 2,719 | $0.50 | $1.4K | 187,696 |
| Jul 27, 2023 | Lucchino David L. | President and CEO | Sell | 5,412 | $0.51 | $2.8K | 686,130 |
| Jul 27, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 456 | $0.51 | $234.66 | 52,867 |
| Jul 25, 2023 | Loose Christopher R. | Chief Scientific Officer | Sell | 2,771 | $0.57 | $1.6K | 190,524 |
| Jul 25, 2023 | Lucchino David L. | President and CEO | Sell | 5,550 | $0.57 | $3.2K | 691,820 |
| Jul 25, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 457 | $0.58 | $267.29 | 53,335 |
| Jul 21, 2023 | Loose Christopher R. | Chief Scientific Officer | Sell | 2,696 | $0.64 | $1.7K | 193,218 |
Showing 1–50 of 89
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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 |
|---|---|---|---|---|---|---|---|
| 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 |
|---|---|---|---|---|---|---|---|
| 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 |
| Jul 31, 2023 | Lucchino David L. | President and CEO | Sell | 5,438 | $0.49 | $2.7K | 680,730 |
| Jul 31, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 450 | $0.50 | $225.12 | 52,418 |
| Jul 27, 2023 | Loose Christopher R. | Chief Scientific Officer | Sell | 2,719 | $0.50 | $1.4K | 187,696 |
| Jul 27, 2023 | Lucchino David L. | President and CEO | Sell | 5,412 | $0.51 | $2.8K | 686,130 |
| Jul 27, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 456 | $0.51 | $234.66 | 52,867 |
| Jul 25, 2023 | Loose Christopher R. | Chief Scientific Officer | Sell | 2,771 | $0.57 | $1.6K | 190,524 |
| Jul 25, 2023 | Lucchino David L. | President and CEO | Sell | 5,550 | $0.57 | $3.2K | 691,820 |
| Jul 25, 2023 | Mitrano Richard J. | VP Finance & Operations | Sell | 457 | $0.58 | $267.29 | 53,335 |
| Jul 21, 2023 | Loose Christopher R. | Chief Scientific Officer | Sell | 2,696 | $0.64 | $1.7K | 193,218 |
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