SEC Insider Transactions from ARMSTRONG WILLIAM H III.

Last updated: 2026-03-17 21:00 UTC | Total transactions: 19

ARMSTRONG WILLIAM H III has filed 19 insider transactions across 1 company since March 2023.

Most recent transaction: a tax payment of 984 shares of STRATUS PROPERTIES INC ($STRS) on March 15, 2026.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 15, 2026 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 984 $32.34 687,122.0000 8,051,000 0.14% 0.01%
Feb. 19, 2026 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO A Common Stock 15638 $0.00 688,106.0000 8,051,000 2.33% 0.19%
Feb. 19, 2026 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO A Common Stock 16588 $0.00 672,468.0000 8,051,000 2.53% 0.21%
Feb. 15, 2026 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 1331 $29.40 655,880.0000 8,051,000 0.20% 0.02%
Feb. 13, 2026 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 4360 $29.69 657,211.0000 8,051,000 0.66% 0.05%
March 15, 2025 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 2782 $18.07 661,571.0000 8,189,000 0.42% 0.03%
Feb. 17, 2025 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 3329 $19.90 664,305.0000 8,189,000 0.50% 0.04%
Feb. 15, 2025 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 3640 $19.90 664,432.0000 8,189,000 0.54% 0.04%
Feb. 17, 2025 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 3329 $19.90 661,103.0000 8,189,000 0.50% 0.04%
Feb. 13, 2025 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO A Common Stock 17258 $0.00 671,322.0000 8,189,000 2.64% 0.21%
Feb. 15, 2025 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 3688 $19.90 667,634.0000 8,189,000 0.55% 0.05%
March 15, 2024 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 5289 $22.52 654,064.0000 7,996,000 0.80% 0.07%
March 11, 2024 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 2277 $22.45 659,353.0000 7,996,000 0.34% 0.03%
Feb. 17, 2024 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 3531 $23.10 661,630.0000 7,996,000 0.53% 0.04%
Feb. 15, 2024 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO A Common Stock 8623 $0.00 665,161.0000 7,996,000 1.31% 0.11%
Feb. 15, 2024 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO A Common Stock 16395 $0.00 656,538.0000 7,996,000 2.56% 0.21%
May 16, 2023 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 25832 $20.12 640,143.0000 0 3.88% 0.00%
March 11, 2023 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 2360 $19.65 672,445.0000 0 0.35% 0.00%
March 15, 2023 STRATUS PROPERTIES INC $STRS ARMSTRONG WILLIAM H III Chair of Board, President, CEO F Common Stock 6470 $19.72 665,975.0000 0 0.96% 0.00%