Porter Stuart D
SEC insider (Form 3/4/5 filer). CIK 0001520346. Director at GameSquare Holdings, Inc. (GAME) and 3 other issuers. 18 reported Form 4/5 transactions since Sep 2024; latest on Jul 10, 2026. Located in FRISCO, TX.
Companies Porter Stuart D has filed insider reports for
- GameSquare Holdings, Inc. (GAME): Director
- AirJoule Technologies Corp. (AIRJ): Director, 10% Owner
- LIXTE BIOTECHNOLOGY HOLDINGS, INC. (LIXT): Director
- ChampionX Corp (CHX): Director
Porter Stuart D
CIK: 0001520346
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (18 total)
- Jul 10, 2026GAME
GameSquare Holdings, Inc.
ExerciseDirect150K shares- - Jul 10, 2026GAME
GameSquare Holdings, Inc.
AwardDirectRestricted Stock Units
150K shares- - May 29, 2026LIXT
LIXTE BIOTECHNOLOGY HOLDINGS, INC.
AwardDirect25K shares- - May 28, 2026AIRJ
AirJoule Technologies Corp.
AwardDirectRestricted Stock Units
30.2K shares- - May 28, 2026AIRJ
AirJoule Technologies Corp.
ExerciseDirect28K shares- - Jan 15, 2026AIRJ
AirJoule Technologies Corp.
PurchaseDirect153.8K shares at avg. $3.25$500K - Dec 10, 2025AIRJ
AirJoule Technologies Corp.
PurchaseDirect264.2K shares at avg. $2.95$779K - Dec 9, 2025AIRJ
AirJoule Technologies Corp.
PurchaseDirect46.8K shares at avg. $2.84$133K - Dec 8, 2025AIRJ
AirJoule Technologies Corp.
PurchaseDirect31.7K shares at avg. $2.77$88K - Dec 4, 2025GAME
GameSquare Holdings, Inc.
AwardDirectRestricted Stock Units
150K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jul 10, 2026 |  GAME GameSquare Holdings, Inc. | Exercise | 150,000 | - | $0 | Direct |
| Jul 10, 2026 | GAME GameSquare Holdings, Inc. | Award Restricted Stock Units | 150,000 | - | - | Direct |
| May 29, 2026 |  LIXT LIXTE BIOTECHNOLOGY HOLDINGS, INC. | Award | 25,000 | - | $0 | Direct |
| May 28, 2026 |  AIRJ AirJoule Technologies Corp. | Award Restricted Stock Units | 30,227 | - | - | Direct |
| May 28, 2026 | AIRJ AirJoule Technologies Corp. | Exercise | 28,037 | - | $0 | Direct |
| Jan 15, 2026 | AIRJ AirJoule Technologies Corp. | Purchase | 153,846 | $3.25 | $500,000 | Direct |
| Dec 10, 2025 | AIRJ AirJoule Technologies Corp. | Purchase | 264,150 | $2.95 | $779,243 | Direct |
| Dec 9, 2025 | AIRJ AirJoule Technologies Corp. | Purchase | 46,800 | $2.84 | $132,912 | Direct |
| Dec 8, 2025 | AIRJ AirJoule Technologies Corp. | Purchase | 31,695 | $2.77 | $87,795 | Direct |
| Dec 4, 2025 | GAME GameSquare Holdings, Inc. | Award Restricted Stock Units | 150,000 | - | - | Direct |
1-10 of 18 transactions