JOSEY JOHN A.

PrivateCIK: 1776351
Location

DALLAS, TX

JOSEY JOHN A. reported 1 transaction at DAY ONE BIOPHARMACEUTICALS, INC.

Review the transaction codes below to understand the nature of each event.

InsiderJOSEY JOHN A.CIK 1776351
Director
Since May 2021
-272.51K
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
8
Total transactions
272.51K disposed
Non-Derivative Transactions1

Common Stock

Direct
D · Disposition

Shares

72.29K

Price / share

Trade value

% of position

New position
4/23/2026
72.29K0.00
Total

Net shares

72.29K

Net value

$0.00

Derivative Transactions7

Stock Option (right to buy Common Stock)

Direct
D · Disposition
Converts to

Common Stock

63K shares

Shares

63K

Strike price

8.99

Held after

0.00

Exercisable

4/23/2026

Stock Option (right to buy Common Stock)

Direct
D · Disposition
Converts to

Common Stock

1.18K shares

Shares

1.18K

Strike price

8.99

Held after

0.00

Exercisable

4/23/2026

Stock Option (right to buy Common Stock)

Direct
D · Disposition
Converts to

Common Stock

28.70K shares

Shares

28.70K

Strike price

8.99

Held after

0.00

Exercisable

4/23/2026

Stock Option (right to buy Common Stock)

Direct
D · Disposition
Converts to

Common Stock

37.50K shares

Shares

37.50K

Strike price

8.99

Held after

0.00

Exercisable

4/23/2026

Stock Option (right to buy Common Stock)

Direct
D · Disposition
Converts to

Common Stock

32.34K shares

Shares

32.34K

Strike price

8.99

Held after

0.00

Exercisable

4/23/2026

Stock Option (right to buy Common Stock)

Direct
D · Disposition
Converts to

Common Stock

22.50K shares

Shares

22.50K

Strike price

7.01

Held after

0.00

Exercisable

4/23/2026

Restricted Stock Unit (RSU)

Direct
D · Disposition
Converts to

Common Stock

15K shares

Shares

15K

Strike price

Held after

0.00

Exercisable

4/23/2026
JOSEY JOHN A. — Insider Transaction (Form 4) Filed Apr 23, 2026 | Finecho