Korro Bio, Inc. (KRRO) Insider Trading -- Recent Executive & Director Transactions

20 insiders reported 52 Form 4 transactions for Korro Bio, Inc. (KRRO) over the past 18 months (most recent 2026-08-21). Recent activity: FORMELA JEAN FRANCOIS (Director) Sell 23,584 shares, FORMELA JEAN FRANCOIS (Director) Sell 4,884 shares, FORMELA JEAN FRANCOIS (Director) Sell 1,775 shares, Nichols Weston (10% Owner) Buy 5,222 shares, Lynx1 Capital Management LP (10% Owner) Buy 5,222 shares. Source: SEC Form 4.

DateInsiderTitleTypeSharesValue
2026-08-21FORMELA JEAN FRANCOISDirectorSell23,584$330,176
2026-08-21FORMELA JEAN FRANCOISDirectorSell4,884$68,376
2026-08-13FORMELA JEAN FRANCOISDirectorSell1,775$24,779
2026-08-13Nichols Weston10% OwnerBuy5,222$59,530
2026-08-13Lynx1 Capital Management LP10% OwnerBuy5,222$59,530
2026-08-13FORMELA JEAN FRANCOISDirectorSell368$5,137
2026-08-13Nichols Weston10% OwnerBuy1,462$19,279
2026-08-13Lynx1 Capital Management LP10% OwnerBuy1,462$19,279
2026-08-05Aiyar RamPresident and CEOSell5,802$62,917
2026-07-17Chappell ToddChief Operating OfficerBuy7,500$0
2026-07-17Cerio JeffreyGeneral CounselBuy6,500$0
2026-07-17Dolan OliverSenior Vice President, FinanceBuy5,500$0
2026-07-17Vincent Loic AChief Scientific OfficerBuy7,500$0
2026-07-07FORMELA JEAN FRANCOISDirectorSell14,745$206,872
2026-07-07FORMELA JEAN FRANCOISDirectorSell85,955$1.2M
2026-07-07FORMELA JEAN FRANCOISDirectorSell817$11,405
2026-07-07FORMELA JEAN FRANCOISDirectorSell8,506$118,744
2026-06-24FORMELA JEAN FRANCOISDirectorSell3,382$47,179
2026-06-24FORMELA JEAN FRANCOISDirectorSell580$8,091
2026-06-24FORMELA JEAN FRANCOISDirectorSell101,579$1.4M
2026-06-24FORMELA JEAN FRANCOISDirectorSell17,426$248,320
2026-06-24FORMELA JEAN FRANCOISDirectorSell40,679$593,913
2026-06-24FORMELA JEAN FRANCOISDirectorSell666$9,977
2026-06-24FORMELA JEAN FRANCOISDirectorSell6,979$101,893
2026-06-24FORMELA JEAN FRANCOISDirectorSell114$1,708

Source: SEC Form 4 filings · as of 2026-08-21