Jeremy Bender - 15 May 2025 Form 4 Insider Report for Day One Biopharmaceuticals, Inc. (DAWN)

Role
CHIEF EXECUTIVE OFFICER, Director
Signature
/s/ Charles N. York II, as Attorney-in-Fact
Issuer symbol
DAWN
Transactions as of
15 May 2025
Transactions value $
-$87,385
Form type
4
Filing time
19 May 2025, 17:44:25 UTC
Previous filing
21 Feb 2025
Next filing
14 Jul 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Bender Jeremy CHIEF EXECUTIVE OFFICER, Director 1800 SIERRA POINT PARKWAY, SUITE 200, BRISBANE /s/ Charles N. York II, as Attorney-in-Fact 19 May 2025 0001863107

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DAWN Common Stock Options Exercise +3.56K +2.78% 132K 15 May 2025 Direct F1
transaction DAWN Common Stock Options Exercise +4.75K +3.61% 136K 15 May 2025 Direct F1
transaction DAWN Common Stock Options Exercise +11.7K +8.57% 148K 15 May 2025 Direct F1
transaction DAWN Common Stock Options Exercise +11.7K +7.9% 160K 15 May 2025 Direct F1
transaction DAWN Common Stock Sale -$87.4K -14K -8.74% $6.26 146K 16 May 2025 Direct F2, F3
holding DAWN Common Stock 163K 15 May 2025 See footnote F4
holding DAWN Common Stock 219K 15 May 2025 See footnote F5
holding DAWN Common Stock 222K 15 May 2025 See footnote F6
holding DAWN Common Stock 198K 15 May 2025 See footnote F7
holding DAWN Common Stock 807K 15 May 2025 See footnote F8

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction DAWN Restricted Stock Unit (RSU) Options Exercise $0 -3.56K -33.31% $0.00 7.13K 15 May 2025 Common Stock 3.56K Direct F1, F9, F10
transaction DAWN Restricted Stock Unit (RSU) Options Exercise $0 -4.75K -14.29% $0.00 28.5K 15 May 2025 Common Stock 4.75K Direct F1, F9, F10
transaction DAWN Restricted Stock Unit (RSU) Options Exercise $0 -11.7K -9.09% $0.00 117K 15 May 2025 Common Stock 11.7K Direct F1, F9, F10
transaction DAWN Restricted Stock Unit (RSU) Options Exercise $0 -11.7K -6.67% $0.00 164K 15 May 2025 Common Stock 11.7K Direct F1, F9, F10
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock upon settlement for no consideration.
F2 The sale of shares is for the sole purpose of covering the Reporting Person's tax liability with respect to the settlement of RSUs.
F3 The price reported in Column 4 is a weighted average price. These shares were sold as part of block trades for multiple security holders of the Issuer at prices ranging from $6.19 to $6.32, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein with regard to the block trade.
F4 Represents shares held by The Jeremy Bender 2022 Grantor Retained Annuity Trust under Irrevocable Trust Agreement dated March 29, 2022 of which the Reporting Person is trustee.
F5 Represents shares held by The Jeremy Bender 2023 Grantor Retained Annuity Trust dated June 27, 2023.
F6 Represents shares held by The Melissa Bender 2022 Grantor Retained Annuity Trust under Irrevocable Trust Agreement dated March 29, 2022 of which the Reporting Person's spouse is trustee.
F7 Represents shares held by The Melissa Bender 2023 Grantor Retained Annuity Trust, dated June 27, 2023.
F8 Represents shares held by the Bender Revocable Trust dated January 18, 2017, as amended, Jeremy Bender and Melissa C. Bender, Trustees.
F9 The RSUs will vest as to 1/16th of the total award in quarterly installments on February 15, May 15, August 15 and November 15, subject to the Reporting Person's provision of service to the Issuer on each vesting date.
F10 RSUs do not expire; they either vest or are canceled prior to the vesting date.