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Jean Francois Formela, Director at Korro Bio, sold KRRO on Sep 11, 2026

Data as of Oct 16

▼ SELL$118K8,450 shares at $13.99Jean Francois Formela DirectorKRRO Korro Bio, Inc.
Watch KRRO
Traded
Sep 11, 2026
Disclosed
Sep 15, 2026
Filed
4 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

Jean Francois Formela, Director at Korro Bio, sold KRRO on Sep 11, 2026TRADEDDISCLOSED
KRROSimilar stocks (S&P 500 (SPY)), rebased to KRRO's price on the disclosure day
KRRO since disclosure
−39.7%
after the sale
Similar stocks (SPY) since disclosure
+0.8%
S&P 500 (SPY)

Change in closing price from Sep 15, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

None of our tested rules fired on this trade.

Other trades in the same filing

  1. ▼ SELLJean Francois Formela DirectorKRRO Korro Bio, Inc.$93.2Kdisclosed Sep 15 · filed 1 day after the trade
  2. ▼ SELLJean Francois Formela DirectorKRRO Korro Bio, Inc.$450Kdisclosed Sep 15 · filed 1 day after the trade
  3. ▼ SELLJean Francois Formela DirectorKRRO Korro Bio, Inc.$24.5Kdisclosed Sep 15 · filed 4 days after the trade

See every trade on KRRO →