Home/Filings/4/0001730229-25-000004
4//SEC Filing

Grossman William 4

Accession 0001730229-25-000004

CIK 0001845337other

Filed

Nov 6, 7:00 PM ET

Accepted

Nov 7, 5:59 PM ET

Size

13.6 KB

Accession

0001730229-25-000004

Insider Transaction Report

Form 4
Period: 2025-11-06
Transactions
  • Disposition to Issuer

    Stock Option (right to buy Common Stock)

    2025-11-0666,6600 total
    Exercise: $13.81Exp: 2034-01-16Common Stock (66,660 underlying)
  • Award

    Stock Option (right to buy Common Stock)

    2025-11-06+66,66066,660 total
    Exercise: $8.99Exp: 2034-01-16Common Stock (66,660 underlying)
  • Disposition to Issuer

    Stock Option (right to buy Common Stock)

    2025-11-0632,3350 total
    Exercise: $13.87Exp: 2034-05-22Common Stock (32,335 underlying)
  • Award

    Stock Option (right to buy Common Stock)

    2025-11-06+32,33532,335 total
    Exercise: $8.99Exp: 2034-05-22Common Stock (32,335 underlying)
Footnotes (4)
  • [F1]On October 7, 2025, the Issuer's Board of Directors approved an option repricing (the "Repricing") whereby the Reporting Person's options were repriced on November 6, 2025 (the "Effective Date") with a new exercise price of $8.99 (if lower than the original exercise price), the closing price on Nasdaq as of the Effective Date. In order to exercise the repriced options at the new exercise price, the Reporting Person is required to remain in service with the Issuer through the Retention Period; provided that the additional premium payment will not be required if the Reporting Person's service to the Issuer is terminated by reason of death or Disability (as defined in the Company's 2021 Equity Incentive Plan ("the Plan")).
  • [F2](Continued from Footnote 1) The "Retention Period" commenced on the Effective Date and ends upon the earliest of (i) the 12-month anniversary of the Effective Date and (ii) a Corporate Transaction (as defined in the Plan). All of the other terms of the options remain unchanged. Such transactions were exempt pursuant to Rule 16b-6(d) and Rule 16b-3 of the Exchange Act, as applicable.
  • [F3]The option vests as to 1/36th of the total shares on each monthly anniversary, beginning on February 17, 2024, subject to the Reporting Person's provision of service to the Issuer on each vesting date.
  • [F4]The options are fully vested.

Issuer

Day One Biopharmaceuticals, Inc.

CIK 0001845337

Entity typeother

Related Parties

1
  • filerCIK 0001730229

Filing Metadata

Form type
4
Filed
Nov 6, 7:00 PM ET
Accepted
Nov 7, 5:59 PM ET
Size
13.6 KB