TOMPKINS MARK N.

PrivateCIK: 1455971

TOMPKINS MARK N. reported 1 transaction at DEEP FISSION, INC.

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

InsiderTOMPKINS MARK N.CIK 1455971
IssuerDEEP FISSION, INC.CIK 1918102
Director10% Owner
Since Apr 2022
-2.83M
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
1
Total transactions
2.83M disposed
Non-Derivative Transactions1

Common Stock

Direct
J · J

Shares

2.83M

Price / share

Trade value

% of position

60.0%
9/5/2025
4.72M1.89M
Total

Net shares

2.83M

Net value

$0.00

Derivative Transactions0
No derivative transactions reported
TOMPKINS MARK N. — Insider Transaction (Form 4) Filed Sep 8, 2025 | Finecho