InsiderTrades

Cerio Jeffrey

SEC CIK 2033618 · EDGAR

Buying vs selling by month open-market trades, last 24 months, KRRO
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
KRROKorro Bio, Inc.GC 41.8K — $71.6K 32025-12-152026-07-15

Most active insiders at KRRO, 12 months

#InsiderTitleBoughtSold
1 FORMELA JEAN FRANCOISDir —$5.16M
2 Yang Rick10% $2.30M—
3 New Enterprise Associates 17, L.P.10% $2.30M—
4 Chang Carmen10% $2.30M—
5 Makhzoumi Mohamad10% $2.30M—
6 Florence Anthony A. Jr.10% $2.30M—
7 Walker Paul Edward10% $2.30M—
8 Mathers Edward T10% $2.30M—
9 BASKETT FOREST10% $2.30M—
10 SANDELL SCOTT D10% $2.30M—
14 Cerio JeffreyGC —$71.6K

Transactions 3

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2026-07-17 07:08 2026-07-15 KRRO Korro Bio, Inc. Cerio Jeffrey GC A - Grant $0.00 +6,500 41.8K +18% $0
2026-06-17 16:08 2026-06-16 KRRO Korro Bio, Inc. Cerio Jeffrey GC S - Sale $10.83 -6,609 35.3K -16% -$71.6K
2025-12-16 2025-12-15 KRRO Korro Bio, Inc. Cerio Jeffrey GC A - Grant $0.00 +41.9K 41.9K New $0

Purchase Sale Sale after option exercise All abbreviations