Porter Stuart D Insider Trades

Insider Trading History

Track insider trading activity for Porter Stuart D. See latest buy and sell transactions across all companies.

Holdings

Company
Holding Value
Last Transaction
Sale/Purchase
Amount
Price
Current Price

Insider Trades History

Company
Holding Value
Last Transaction
Sale/Purchase
Amount
Price
Current Price
Lixte Biotechnology Holdings- Warrants (01/01/2025)
Lixte Biotechnology Holdings- Warrants (01/01/2025) LIXTW
Director
Holding Value $553 25,000 shares
Last Trade
May 29, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$553 25,000 shares
$0.02
$0.02
Lixte Biotechnology Holdings
Lixte Biotechnology Holdings LIXT
Director
Holding Value $183k 25,000 shares
Last Trade
May 29, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$156k 25,000 shares
$6.25
$7.30
Power & Digital Infrastructure Acquisition II - Units (1 Ord Class A & 1/2 War)
Power & Digital Infrastructure Acquisition II - Units (1 Ord Class A & 1/2 War) XPDBU
10% owner
Holding Value $0 0 shares
Last Trade
May 28, 2026 Sale (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$506k 28,037 shares
$18.04
$18.04
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) XPDBW
10% owner
Holding Value $483k 804,916 shares
Last Trade
May 28, 2026 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$16.8k 28,037 shares
$0.60
$0.60
Power & Digital Infrastructure Acquisition II - Units (1 Ord Class A & 1/2 War)
Power & Digital Infrastructure Acquisition II - Units (1 Ord Class A & 1/2 War) XPDBU
10% owner
Holding Value $14.5M 804,916 shares
Last Trade
May 28, 2026 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$506k 28,037 shares
$18.04
$18.04
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) XPDBW
10% owner
Holding Value $18.1k 30,227 shares
Last Trade
May 28, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$18.1k 30,227 shares
$0.60
$0.60
Montana Technologies
Montana Technologies AIRJ
10% owner
Holding Value $152k 30,227 shares
Last Trade
May 28, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$145k 30,227 shares
$4.79
$5.03
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) AIRJW
10% owner
Holding Value $36.9k 30,227 shares
Last Trade
May 28, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$29.6k 30,227 shares
$0.98
$1.22
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) AIRJW
10% owner
Holding Value $982k 804,916 shares
Last Trade
May 28, 2026 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$27.5k 28,037 shares
$0.98
$1.22
Montana Technologies
Montana Technologies AIRJ
10% owner
Holding Value $4.05M 804,916 shares
Last Trade
May 28, 2026 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$134k 28,037 shares
$4.79
$5.03
Power & Digital Infrastructure Acquisition II - Units (1 Ord Class A & 1/2 War)
Power & Digital Infrastructure Acquisition II - Units (1 Ord Class A & 1/2 War) XPDBU
10% owner
Holding Value $545k 30,227 shares
Last Trade
May 28, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$545k 30,227 shares
$18.04
$18.04
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) XPDBW
10% owner
Holding Value $0 0 shares
Last Trade
May 28, 2026 Sale (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$16.8k 28,037 shares
$0.60
$0.60
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) AIRJW
10% owner
Holding Value $0 0 shares
Last Trade
May 28, 2026 Sale (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$27.5k 28,037 shares
$0.98
$1.22
Montana Technologies
Montana Technologies AIRJ
10% owner
Holding Value $0 0 shares
Last Trade
May 28, 2026 Sale (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$134k 28,037 shares
$4.79
$5.03
Montana Technologies
Montana Technologies AIRJ
10% owner
Holding Value $3.91M 776,879 shares
Last Trade
Jan 15, 2026 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$500k 153,846 shares
$3.25
$5.03
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) AIRJW
10% owner
Holding Value $948k 776,879 shares
Last Trade
Jan 15, 2026 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$116k 153,846 shares
$0.75
$1.22
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) XPDBW
10% owner
Holding Value $466k 776,879 shares
Last Trade
Jan 15, 2026 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$92.3k 153,846 shares
$0.60
$0.60
Power & Digital Infrastructure Acquisition II - Units (1 Ord Class A & 1/2 War)
Power & Digital Infrastructure Acquisition II - Units (1 Ord Class A & 1/2 War) XPDBU
10% owner
Holding Value $14M 776,879 shares
Last Trade
Jan 15, 2026 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$2.78M 153,846 shares
$18.04
$18.04
Power & Digital Infrastructure Acquisition II - Units (1 Ord Class A & 1/2 War)
Power & Digital Infrastructure Acquisition II - Units (1 Ord Class A & 1/2 War) XPDBU
10% owner
Holding Value $11.2M 623,033 shares
Last Trade
Dec 10, 2025 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$4.77M 264,150 shares
$18.04
$18.04
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) AIRJW
10% owner
Holding Value $760k 623,033 shares
Last Trade
Dec 10, 2025 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$161k 264,150 shares
$0.61
$1.22

See more insider trades for free

Join Stockcircle to see more insider trades and be the first to know about new executive transactions.

Sign Up