Who
Stuart D. Porter
Director
Company insider
Files Form 4 as: Director, GameSquare Holdings; Director, Lixte Biotechnology Holdings; Director and 10% owner, AirJoule Technologies; Director, ChampionX; Director and 10% owner and Other, Comstock Resources; Director, Ngl Energy Partners LP.
In numbers
- Trades disclosed
- 45
- Buys
- 5
- Sells
- 1
- Bought
- $2.0M
- Sold
- $55.1M
- Companies
- 6
- Companies where not an officer
- 6
- First trade
- 19 Jun 2012
- Last trade
- 10 Jul 2026
- Last filed
- 14 Jul 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 10 Jul 2026filed 14 Jul 2026 | GAME GameSquare HoldingsEntertainment, Gaming & Leisure Services | SEC FORM 4 Code M | —150,000 | filing |
| 10 Jul 2026filed 14 Jul 2026 | GAME GameSquare Holdingsoption or derivative · Entertainment, Gaming & Leisure Services | SEC FORM 4 Code A | —150,000 at $0.00 | filing |
| 10 Jul 2026filed 14 Jul 2026 | GAME GameSquare Holdingsoption or derivative · Entertainment, Gaming & Leisure Services | SEC FORM 4 Code M | —150,000 at $0.00 | filing |
| 10 Jul 2026filed 14 Jul 2026 | GAME GameSquare Holdingsoption or derivative · Entertainment, Gaming & Leisure Services | SEC FORM 4 Code A | —150,000 at $0.00 | filing |
| 10 Jul 2026filed 14 Jul 2026 | GAME GameSquare Holdingsoption or derivative · Entertainment, Gaming & Leisure Services | SEC FORM 4 Code M | —150,000 at $0.00 | filing |
| 10 Jul 2026filed 14 Jul 2026 | GAME GameSquare HoldingsEntertainment, Gaming & Leisure Services | SEC FORM 4 Code M | —150,000 | filing |
| 29 May 2026filed 1 Jun 2026 | Lixte Biotechnology HoldingsBiotechnology | SEC FORM 4 Code A | —25,000 at $0.00 | filing |
| 29 May 2026filed 1 Jun 2026 | NMAD Nomad Power SolutionsBiotechnology | SEC FORM 4 Code A | —25,000 at $0.00 | filing |
| 28 May 2026filed 1 Jun 2026 | AIRJ AirJoule TechnologiesMachinery | SEC FORM 4 Code M | —28,037 at $0.00 | filing |
| 28 May 2026filed 1 Jun 2026 | AIRJ AirJoule Technologiesoption or derivative · Machinery | SEC FORM 4 Code M | —28,037 at $0.00 | filing |
| 28 May 2026filed 1 Jun 2026 | AIRJ AirJoule Technologiesoption or derivative · Machinery | SEC FORM 4 Code A | —30,227 at $0.00 | filing |
| 28 May 2026filed 1 Jun 2026 | AIRJ AirJoule Technologiesoption or derivative · Machinery | SEC FORM 4 Code M | —28,037 at $0.00 | filing |
| 28 May 2026filed 1 Jun 2026 | AIRJ AirJoule Technologiesoption or derivative · Machinery | SEC FORM 4 Code A | —30,227 at $0.00 | filing |
| 28 May 2026filed 1 Jun 2026 | AIRJ AirJoule TechnologiesMachinery | SEC FORM 4 Code M | —28,037 at $0.00 | filing |
| 15 Jan 2026filed 20 Jan 2026 | AIRJ AirJoule TechnologiesMachinery | SEC FORM 4 Bought | $500K153,846 at $3.25 | filing |
| 15 Jan 2026filed 20 Jan 2026 | AIRJ AirJoule TechnologiesMachinery | SEC FORM 4 Bought | $500K153,846 at $3.25 | filing |
| 10 Dec 2025filed 10 Dec 2025 | AIRJ AirJoule TechnologiesMachinery | SEC FORM 4 Bought | $779K264,150 at $2.95 | filing |
| 9 Dec 2025filed 10 Dec 2025 | AIRJ AirJoule TechnologiesMachinery | SEC FORM 4 Bought | $133K46,800 at $2.84 | filing |
| 8 Dec 2025filed 10 Dec 2025 | AIRJ AirJoule TechnologiesMachinery | SEC FORM 4 Bought | $88K31,695 at $2.77 | filing |
| 4 Dec 2025filed 9 Dec 2025 | GAME GameSquare Holdingsoption or derivative · Entertainment, Gaming & Leisure Services | SEC FORM 4 Code A | —150,000 at $0.00 | filing |
News
No headline names them, or the companies they trade most, lately.