Thomas S. Glanville

CIK: 0001192319

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)6 (100.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

FISN

DEEP FISSION, INC.

Director

MIND

MIND TECHNOLOGY, INC

Director

Discretionary Trading P&L

Holdings

Transaction History (6 total)

FISN
DEEP FISSION, INC.
Jul 23, 2026
Award(A)
Restricted Stock Unit
Direct
19.2K shares-
No ticker
DEEP FISSION, INC.
Mar 9, 2026
Award(A)
Restricted Stock Unit
Direct
3.3K shares-
No ticker
DEEP FISSION, INC.
Nov 12, 2025
Award(A)
Restricted Stock Unit
Direct
100K shares-
MIND
MIND TECHNOLOGY, INC
Oct 6, 2025
Award(A)
Option to Purchase Common Stock
Direct
30K shares at avg. $8.64-
MIND
MIND TECHNOLOGY, INC
Jan 20, 2025
Award(A)
Option to Purchase Common Stock
Direct
20K shares at avg. $7.47-
MIND
MIND TECHNOLOGY, INC
Sep 24, 2024
Award(A)
Option to Purchase Common Stock
Direct
17K shares at avg. $3.99-

		Type	Shares	Price		Ownership
Jul 23, 2026	FISN DEEP FISSION, INC.	Award(A) Restricted Stock Unit	19,156	-	-	Direct
Mar 9, 2026	No ticker DEEP FISSION, INC.	Award(A) Restricted Stock Unit	3,334	-	-	Direct
Nov 12, 2025	No ticker DEEP FISSION, INC.	Award(A) Restricted Stock Unit	100,000	-	-	Direct
Oct 6, 2025	MIND MIND TECHNOLOGY, INC	Award(A) Option to Purchase Common Stock	30,000	$8.64	-	Direct
Jan 20, 2025	MIND MIND TECHNOLOGY, INC	Award(A) Option to Purchase Common Stock	20,000	$7.47	-	Direct
Sep 24, 2024	MIND MIND TECHNOLOGY, INC	Award(A) Option to Purchase Common Stock	17,000	$3.99	-	Direct

1-6 of 6 transactions

About GLANVILLE THOMAS S

GLANVILLE THOMAS S (SEC CIK 0001192319) files insider reports with the SEC as Director of DEEP FISSION, INC. (FISN) and Director of MIND TECHNOLOGY, INC (MIND).

Signal8 holds 7 ownership filings by GLANVILLE THOMAS S (1 Form 3, 6 Form 4), filed between Sep 26, 2024 and Jul 27, 2026. Those filings report 6 transactions, from Sep 24, 2024 to Jul 23, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on GLANVILLE THOMAS S's filings is in BERKELEY, CA.

Recent filings by GLANVILLE THOMAS S

Jul 23, 2026: Grant or award of FISN derivative securities (Form 4, code A).
Mar 9, 2026: Grant or award of DEEP FISSION, INC. derivative securities (Form 4, code A).
Nov 12, 2025: Grant or award of DEEP FISSION, INC. derivative securities (Form 4, code A).
Oct 6, 2025: Grant or award of MIND derivative securities (Form 4, code A).
Jan 20, 2025: Grant or award of MIND derivative securities (Form 4, code A).

Other insiders filing for DEEP FISSION, INC. (FISN)

How to read Form 4 transaction codes