SEC Insider Transactions from Nguyen Diem.

Last updated: 2026-03-17 21:00 UTC | Total transactions: 22

Nguyen Diem has filed 22 insider transactions across 3 companies since January 2024.

Most recent transaction: a grant/award of 272243 shares of SIGA TECHNOLOGIES INC ($SIGA) on March 13, 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 13, 2026 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer A Restricted Stock Units 272243 $0.00 272,243.0000 71,801,188 9999.99% 0.38%
March 13, 2026 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer M Common Stock, par value $.0001 per share 85045 $0.00 185,796.0000 71,801,188 84.41% 0.12%
March 13, 2026 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer F Common Stock, par value $.0001 per share 47029 $5.26 138,767.0000 71,801,188 25.31% 0.07%
March 13, 2026 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer M Restricted Stock Units 85045 $0.00 170,092.0000 71,801,188 33.33% 0.12%
Jan. 27, 2026 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer M Common Stock, par value $.0001 per share 55902 $0.00 123,555.0000 71,801,188 82.63% 0.08%
Jan. 27, 2026 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer M Restricted Stock Units 55902 $0.00 55,903.0000 71,801,188 50.00% 0.08%
Jan. 27, 2026 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer F Common Stock, par value $.0001 per share 22804 $6.82 100,751.0000 71,801,188 18.46% 0.03%
June 17, 2025 Candel Therapeutics, Inc. $CADL Nguyen Diem Not found A Stock Option (Right to Buy) 14240 $0.00 14,240.0000 46,933,088 9999.99% 0.03%
June 5, 2025 Verrica Pharmaceuticals Inc. $VRCA Nguyen Diem Not found A Stock Option (right to buy) 20000 $0.00 20,000.0000 91,779,993 9999.99% 0.02%
March 13, 2025 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer A Restricted Stock Units 255137 $0.00 255,137.0000 71,905,712 9999.99% 0.35%
Jan. 27, 2025 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer M Restricted Stock Units 55902 $0.00 111,805.0000 71,905,712 33.33% 0.08%
Jan. 27, 2025 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer M Common Stock, par value $.0001 per share 55902 $0.00 91,297.0000 71,905,712 157.94% 0.08%
Jan. 27, 2025 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer F Common Stock, par value $.0001 per share 23644 $6.34 67,653.0000 71,905,712 25.90% 0.03%
Oct. 25, 2024 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer F Common Stock, par value $.0001 per share 23893 $6.77 35,395.0000 71,853,341 40.30% 0.03%
Oct. 25, 2024 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer M Common Stock, par value $.0001 per share 59288 $0.00 59,288.0000 71,853,341 9999.99% 0.08%
Oct. 25, 2024 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer M Performance Stock Units 59288 $0.00 118,577.0000 71,853,341 33.33% 0.08%
June 26, 2024 Candel Therapeutics, Inc. $CADL Nguyen Diem Not found A Stock Option (Right to Buy) 14240 $0.00 14,240.0000 29,213,627 9999.99% 0.05%
June 6, 2024 Verrica Pharmaceuticals Inc. $VRCA Nguyen Diem Not found A Stock Option (right to buy) 20000 $0.00 20,000.0000 0 9999.99% 0.00%
Jan. 27, 2024 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer A Performance Stock Units 177865 $0.00 177,865.0000 71,679,270 9999.99% 0.25%
Jan. 27, 2024 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer A Restricted Stock Units 167707 $0.00 167,707.0000 71,679,270 9999.99% 0.23%
Jan. 27, 2024 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer A Stock Option (Right to buy) 219212 $0.00 219,212.0000 71,679,270 9999.99% 0.31%
Jan. 27, 2024 SIGA TECHNOLOGIES INC $SIGA Nguyen Diem Chief Executive Officer A Stock Option (Right to buy) 109606 $0.00 109,606.0000 71,679,270 9999.99% 0.15%