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
Lixte Biotechnology Holdings LIXT
Director
Holding Value $168k 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
$6.71
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 - 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
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 $1.01M 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
$1.30
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
Montana Technologies
Montana Technologies AIRJ
10% owner
Holding Value $4.14M 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.
$500k 153,846 shares
$3.25
$5.33
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 $810k 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
$1.30
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) XPDBW
10% owner
Holding Value $374k 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.
$158k 264,150 shares
$0.60
$0.60
Montana Technologies
Montana Technologies AIRJ
10% owner
Holding Value $3.32M 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.
$779k 264,150 shares
$2.95
$5.33
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) AIRJW
10% owner
Holding Value $467k 358,883 shares
Last Trade
Dec 09, 2025 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$28.5k 46,800 shares
$0.61
$1.30
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) XPDBW
10% owner
Holding Value $215k 358,883 shares
Last Trade
Dec 09, 2025 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$28.1k 46,800 shares
$0.60
$0.60
Montana Technologies
Montana Technologies AIRJ
10% owner
Holding Value $1.91M 358,883 shares
Last Trade
Dec 09, 2025 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$133k 46,800 shares
$2.84
$5.33
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 $6.47M 358,883 shares
Last Trade
Dec 09, 2025 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$844k 46,800 shares
$18.04
$18.04
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) AIRJW
10% owner
Holding Value $406k 312,083 shares
Last Trade
Dec 08, 2025 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$17.5k 31,695 shares
$0.55
$1.30
Montana Technologies
Montana Technologies AIRJ
10% owner
Holding Value $1.66M 312,083 shares
Last Trade
Dec 08, 2025 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$87.8k 31,695 shares
$2.77
$5.33
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 $5.63M 312,083 shares
Last Trade
Dec 08, 2025 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$572k 31,695 shares
$18.04
$18.04
Montana Technologies - Warrants (14/03/2029)
Montana Technologies - Warrants (14/03/2029) XPDBW
10% owner
Holding Value $187k 312,083 shares
Last Trade
Dec 08, 2025 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$19k 31,695 shares
$0.60
$0.60

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