SEC Insider Transactions from de Leon David A.

Last updated: 2026-03-14 11:51 UTC | Total transactions: 13

de Leon David A has filed 13 insider transactions across 1 company since February 2023.

Most recent transaction: a tax payment of 5207 shares of ALLIANT ENERGY CORP ($LNT) on February 19, 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
Feb. 19, 2026 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President F Common Stock 5207 $70.01 49,986.7840 257,800,000 9.43% 0.00%
Feb. 19, 2026 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President A Common Stock 2306 $0.00 55,193.7840 257,800,000 4.36% 0.00%
Feb. 19, 2026 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President A Common Stock 8616 $0.00 52,887.7840 257,800,000 19.46% 0.00%
Feb. 20, 2025 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President A Common Stock 3256 $0.00 43,011.9250 256,800,000 8.19% 0.00%
Feb. 20, 2025 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President A Common Stock 2532 $0.00 45,543.9250 256,800,000 5.89% 0.00%
Feb. 20, 2025 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President F Common Stock 2560 $61.62 42,983.9250 256,800,000 5.62% 0.00%
May 7, 2024 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President A Common Stock 465 $0.00 38,885.9827 253,300,000 1.21% 0.00%
Feb. 15, 2024 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President A Common Stock 2386 $0.00 42,458.4418 253,300,000 5.95% 0.00%
Feb. 15, 2024 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President A Common Stock 6981 $0.00 40,072.4418 253,300,000 21.10% 0.00%
Feb. 15, 2024 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President F Common Stock 4269 $48.40 38,189.4418 253,300,000 10.05% 0.00%
Feb. 23, 2023 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President F Common Stock 3874 $52.99 31,870.9427 251,200,000 10.84% 0.00%
Feb. 23, 2023 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President A Common Stock 6457 $0.00 33,565.9427 251,200,000 23.82% 0.00%
Feb. 23, 2023 ALLIANT ENERGY CORP $LNT de Leon David A Senior Vice President A Common Stock 2179 $0.00 35,744.9427 251,200,000 6.49% 0.00%