Korro Bio, Inc.·4

Jun 11, 6:04 PM ET

Bermingham Nessan 4

4 · Korro Bio, Inc. · Filed Jun 11, 2026

Research Summary

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Korro Bio (KRRO) Director Nessan Bermingham Receives 14,677-Share Award

What Happened

  • Nessan Bermingham (listed in the filing as "Bermingham Nessan"), a director of Korro Bio, was granted a derivative equity award of 14,677 shares on 2026-06-10. The reported acquisition price is $0.00, so no cash was paid at grant and the reported total value for the transaction is $0.

Key Details

  • Transaction date: 2026-06-10; Form 4 filed 2026-06-11 (timely filing).
  • Amount granted: 14,677 shares; reported price: $0.00; total reported cash value: $0.
  • Shares owned after transaction: not specified in the provided filing data.
  • Footnote: The shares subject to the option vest in full on the earlier of (i) the one-year anniversary of the grant date or (ii) the date of the next annual meeting of stockholders, subject to continued service as a non-employee director.
  • Transaction type: Award/Grant (derivative); code A on Form 4.

Context

  • This was an equity award to a non-employee director rather than an open-market purchase or sale. The award vests upon continued service and/or the next annual meeting (per footnote), so the shares are not immediately tradable unless separate terms apply.
  • Such director awards are a common form of board compensation and do not by themselves indicate insider buying or selling intent.

Insider Transaction Report

Form 4
Period: 2026-06-10
Transactions
  • Award

    Stock Option (Right to Buy)

    [F1]
    2026-06-10+14,67714,677 total
    Exercise: $10.59Exp: 2036-06-09Common Stock (14,677 underlying)
Footnotes (1)
  • [F1]The shares subject to the option vest in full on the earlier of (i) the one-year anniversary of the grant date or (ii) the date of the next annual meeting of stockholders, subject to continued service as a non-employee director through the applicable vesting date.
Signature
/s/ Jeffrey Cerio, attorney-in-fact|2026-06-11

Documents

1 file
  • 4
    ownership.xmlPrimary

    4