Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 10 years
- Director since
- 2023
10 years of board service in total across 3 boards, counting each seat separately. Longest: Verrica Pharmaceuticals Inc., 3 years.
Chief executive roles
Weak · grade F
Out of 100, from shareholder return, dividends, growth and acquisitions.
Partial: only 50% of the scoring weight is on file.
- Dividends 15%
- 91
- Revenue growth 20%
- 0
- Earnings growth 15%
- 0
dividend grew 15.5% a year
-17.8% a year in revenue
-42% a year in earnings per share
50% of the scoring weight is on file. Figures cover December 2023 – December 2025.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
SIGA Technologies Inc. June 9, 202697.4%
-
SIGA Technologies Inc. June 10, 202597.8%
-
Verrica Pharmaceuticals Inc. June 5, 202592.2%
-
Candel Therapeutics Inc. June 26, 202495.7%
-
SIGA Technologies Inc. June 11, 202499.6%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 13, 2026 | SIGA Technologies Inc. | Option exercise | +85,045 | — | — |
| Mar 13, 2026 | SIGA Technologies Inc. | Shares withheld for tax | −47,029 | $5.26 | $247,373 |
| Jan 27, 2026 | SIGA Technologies Inc. | Option exercise | +55,902 | — | — |
| Jan 27, 2026 | SIGA Technologies Inc. | Shares withheld for tax | −22,804 | $6.82 | $155,523 |
| Jan 27, 2025 | SIGA Technologies Inc. | Option exercise | +55,902 | — | — |
| Jan 27, 2025 | SIGA Technologies Inc. | Shares withheld for tax | −23,644 | $6.34 | $149,903 |
| Oct 25, 2024 | SIGA Technologies Inc. | Option exercise | +59,288 | — | — |
| Oct 25, 2024 | SIGA Technologies Inc. | Shares withheld for tax | −23,893 | $6.77 | $161,756 |
Questions about Diem Nguyen
What boards is Diem Nguyen on?
Diem Nguyen sits on the boards of Candel Therapeutics Inc., SIGA Technologies Inc. and Verrica Pharmaceuticals Inc.
What company is Diem Nguyen the CEO of?
Diem Nguyen has been Chief Executive Officer of SIGA Technologies Inc. since January 2024.
How long has Diem Nguyen served on boards?
Our records show at least 10 years of board service across 3 boards, the earliest from 2023.
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