Insider Trading & Ownership of Stuart D. Porter

Location
Boston, MA
Summary
The estimated net worth of Stuart D. Porter is at least $77,138,090 dollars as of 20 Jan 2026. Stuart D. Porter is the Director, 10%+ Owner of AirJoule Technologies Corp. and owns shares of AirJoule Technologies Corp. (AIRJ) stock worth about $76.48M. Stuart D. Porter is the Director of GameSquare Holdings, Inc. and owns shares of GameSquare Holdings, Inc. (GAME) stock worth about $658.3K.
Signature
/s/ Chad W. MacDonald, Attorney-in-fact
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Quick Takeaways

  • Stuart D. Porter has 4 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $77,138,090.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: AirJoule Technologies Corp. ($76,479,759).
  • Past-year value change for that position: +$1,499,949.

Why This Matters

  • This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
  • You can cross-check role, issuer, and filing chronology directly against the SEC source.

Source Evidence

Filed on Form 4

Insider ownership context is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Ownership of Stuart D. Porter

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
AIRJ, AIRJW AirJoule Technologies Corp. Director, 10%+ Owner $76,479,759 +$1,499,949 +2% 15 Jan 2026
GAME GameSquare Holdings, Inc. Director $658,331 04 Dec 2025
CHX ChampionX Corp Director $0 16 Jul 2025
KLXE KLX Energy Services Holdings, Inc. 10%+ Owner $0 11 Mar 2024

Insider Transactions Reported by Stuart D. Porter:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
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