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Are Korro Bio Insiders Buying or Selling?
Korro Bio (KRRO) has had 16 insider transactions in the past 90 days, including 2 buys and 14 sells. The most recent was FORMELA JEAN FRANCOIS, who sold 31,888 shares at $14.12 on September 14, 2026.
Insider trading patterns can signal confidence or concern from the people who know the company best. AltIndex tracks insider transactions as one of 25+ alternative data signals in the KRRO AI Score. For government officials trading this stock, see KRRO congressional trading.
Who’s Trading Korro Bio Stock?
| Insider | Activity | Trades | Last Trade |
|---|---|---|---|
| FORMELA JEAN FRANCOIS | Sold $5.2M | 24 | Sep 14, 2026 |
| Florence Anthony A. Jr. | Bought $5M | 2 | Mar 10, 2026 |
| Mohamad Makhzoumi | Bought $5M | 2 | Mar 10, 2026 |
| Walker Paul Edward | Bought $5M | 2 | Mar 10, 2026 |
| Edward Mathers | Bought $5M | 2 | Mar 10, 2026 |
| FOREST BASKETT | Bought $5M | 2 | Mar 10, 2026 |
Recent Korro Bio Insider Transactions
| Insider | Transaction Date | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| FORMELA JEAN FRANCOIS | Sep 14, 2026 | Sell | 31,888 | $14.12 | $450,000 |
| FORMELA JEAN FRANCOIS | Sep 14, 2026 | Sell | 6,602 | $14.12 | $93,000 |
| FORMELA JEAN FRANCOIS | Sep 11, 2026 | Sell | 8,450 | $13.99 | $120,000 |
| FORMELA JEAN FRANCOIS | Sep 11, 2026 | Sell | 1,750 | $13.99 | $24,000 |
| Oliver Dolan | Sep 11, 2026 | Sell | 5 | $13.72 | $69 |
| Oliver Dolan | Sep 9, 2026 | Sell | 6 | $13.6 | $82 |
| Oliver Dolan | Sep 8, 2026 | Sell | 7,347 | $13.51 | $99,000 |
| FORMELA JEAN FRANCOIS | Aug 26, 2026 | Sell | 249 | $13.96 | $3,500 |
| FORMELA JEAN FRANCOIS | Aug 26, 2026 | Sell | 51 | $13.96 | $710 |
| FORMELA JEAN FRANCOIS | Aug 19, 2026 | Sell | 23,584 | $14 | $330,000 |
| FORMELA JEAN FRANCOIS | Aug 19, 2026 | Sell | 4,884 | $14 | $68,000 |
| FORMELA JEAN FRANCOIS | Aug 11, 2026 | Sell | 1,775 | $13.96 | $25,000 |
| FORMELA JEAN FRANCOIS | Aug 11, 2026 | Sell | 368 | $13.96 | $5,100 |
| Lynx1 Capital Management LP | Aug 10, 2026 | Buy | 1,462 | $13.19 | $19,000 |
| Lynx1 Capital Management LP | Aug 6, 2026 | Buy | 5,222 | $11.4 | $60,000 |
| Ram Aiyar | Aug 4, 2026 | Sell | 5,802 | $10.84 | $63,000 |
| FORMELA JEAN FRANCOIS | Jul 6, 2026 | Sell | 8,506 | $13.96 | $120,000 |
| FORMELA JEAN FRANCOIS | Jul 6, 2026 | Sell | 817 | $13.96 | $11,000 |
| FORMELA JEAN FRANCOIS | Jul 2, 2026 | Sell | 85,955 | $14.03 | $1.2M |
| FORMELA JEAN FRANCOIS | Jul 2, 2026 | Sell | 14,745 | $14.03 | $210,000 |
| FORMELA JEAN FRANCOIS | Jun 24, 2026 | Sell | 40,679 | $14.6 | $590,000 |
| FORMELA JEAN FRANCOIS | Jun 24, 2026 | Sell | 6,979 | $14.6 | $100,000 |
| FORMELA JEAN FRANCOIS | Jun 24, 2026 | Sell | 666 | $14.98 | $10,000 |
| FORMELA JEAN FRANCOIS | Jun 24, 2026 | Sell | 114 | $14.98 | $1,700 |
| FORMELA JEAN FRANCOIS | Jun 23, 2026 | Sell | 101,579 | $14.25 | $1.4M |
| FORMELA JEAN FRANCOIS | Jun 23, 2026 | Sell | 17,426 | $14.25 | $250,000 |
| FORMELA JEAN FRANCOIS | Jun 22, 2026 | Sell | 3,382 | $13.95 | $47,000 |
| FORMELA JEAN FRANCOIS | Jun 22, 2026 | Sell | 580 | $13.95 | $8,100 |
| Ram Aiyar | May 29, 2026 | Sell | 15,152 | $12.98 | $200,000 |
| FORMELA JEAN FRANCOIS | May 28, 2026 | Sell | 2,441 | $13.95 | $34,000 |
| FORMELA JEAN FRANCOIS | May 28, 2026 | Sell | 419 | $13.95 | $5,800 |
| Weston Nichols | Mar 31, 2026 | Buy | 520 | $10.6 | $5,500 |
| Rick Yang | Mar 10, 2026 | Buy | 242,945 | $11.11 | $2.7M |
| Rick Yang | Mar 10, 2026 | Buy | 207,100 | $11.11 | $2.3M |
| SCOTT SANDELL | Mar 10, 2026 | Buy | 242,945 | $11.11 | $2.7M |
| SCOTT SANDELL | Mar 10, 2026 | Buy | 207,100 | $11.11 | $2.3M |
| New Enterprise Associates 17, L.P. | Mar 10, 2026 | Buy | 242,945 | $11.11 | $2.7M |
| New Enterprise Associates 17, L.P. | Mar 10, 2026 | Buy | 207,100 | $11.11 | $2.3M |
| Carmen Chang | Mar 10, 2026 | Buy | 242,945 | $11.11 | $2.7M |
| Carmen Chang | Mar 10, 2026 | Buy | 207,100 | $11.11 | $2.3M |
| FOREST BASKETT | Mar 10, 2026 | Buy | 242,945 | $11.11 | $2.7M |
| FOREST BASKETT | Mar 10, 2026 | Buy | 207,100 | $11.11 | $2.3M |
| Edward Mathers | Mar 10, 2026 | Buy | 242,945 | $11.11 | $2.7M |
| Edward Mathers | Mar 10, 2026 | Buy | 207,100 | $11.11 | $2.3M |
| Walker Paul Edward | Mar 10, 2026 | Buy | 242,945 | $11.11 | $2.7M |
| Walker Paul Edward | Mar 10, 2026 | Buy | 207,100 | $11.11 | $2.3M |
| Mohamad Makhzoumi | Mar 10, 2026 | Buy | 242,945 | $11.11 | $2.7M |
| Mohamad Makhzoumi | Mar 10, 2026 | Buy | 207,100 | $11.11 | $2.3M |
| Florence Anthony A. Jr. | Mar 10, 2026 | Buy | 242,945 | $11.11 | $2.7M |
| Florence Anthony A. Jr. | Mar 10, 2026 | Buy | 207,100 | $11.11 | $2.3M |
| Vineet Agarwal | Nov 11, 2024 | Sell | 800 | $70 | $56,000 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 4,961 | $80.5 | $400,000 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 2,023 | $71.51 | $140,000 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 1,815 | $79.79 | $140,000 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 457 | $78.59 | $36,000 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 317 | $81.48 | $26,000 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 260 | $77.55 | $20,000 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 164 | $73.71 | $12,000 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 115 | $74.56 | $8,600 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 56 | $76 | $4,300 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 25 | $82.89 | $2,100 |
| Vineet Agarwal | Oct 17, 2024 | Sell | 23 | $77 | $1,800 |
Frequently Asked Questions: Korro Bio Insider Trading
In the past 90 days, Korro Bio insiders have made 2 buys and 14 sells. The net selling may indicate insiders are taking profits or reducing exposure.
The most recent sale was by FORMELA JEAN FRANCOIS who sold 31,888 shares on September 14, 2026. View all transactions in the table on this page.
Insider buying is generally a stronger signal than insider selling, since insiders may sell for personal reasons (diversification, taxes) but typically buy only when they believe the stock is undervalued. AltIndex uses insider transaction patterns alongside 25+ other signals in the AI Score.
Florence Anthony A. Jr. has bought the most KRRO stock in the last 2 years, with a total value of $5M.
FORMELA JEAN FRANCOIS has sold the most KRRO stock in the last 2 years, with a total value of $5.2M.
According to our estimates, the total value of insider transactions for Korro Bio in the last 2 years is positive, amounting to $39M. This indicates that insiders have predominantly bought shares, showcasing their confidence in the company's future prospects.
