SIGA
SIGA Technologies Inc
NASDAQ: SIGA · HEALTHCARE · DRUG MANUFACTURERS - SPECIALTY & GENERIC
$4.45
-2.93% today
Updated 2026-06-05
Market cap
$314.15M
P/E ratio
15.64
P/S ratio
3.35x
EPS (TTM)
$0.28
Dividend yield
—
52W range
$4 – $9
Volume
0.6M
SIGA Technologies Inc (SIGA) Insider transactions
Net insider activity
Net buying (882,285 shares)
Buy transactions
49
Sell transactions
51
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-25 | MILLER, LARRY R. | General Counsel | Sale | 6,920 | — | — |
| 2026-03-25 | MILLER, LARRY R. | General Counsel | Buy | 6,920 | — | — |
| 2026-03-25 | MILLER, LARRY R. | General Counsel | Sale | 3,526 | $4.99 | $17594.74 |
| 2026-03-13 | NGUYEN, DIEM | Director, Chief Executive Officer | Buy | 272,243 | — | — |
| 2026-03-13 | NGUYEN, DIEM | Director, Chief Executive Officer | Sale | 85,045 | — | — |
| 2026-03-13 | NGUYEN, DIEM | Director, Chief Executive Officer | Buy | 85,045 | — | — |
| 2026-03-13 | NGUYEN, DIEM | Director, Chief Executive Officer | Sale | 47,029 | $5.26 | $247372.54 |
| 2026-03-13 | MILLER, LARRY R. | General Counsel | Buy | 68,060 | — | — |
| 2026-03-13 | MILLER, LARRY R. | General Counsel | Sale | 21,261 | — | — |
| 2026-03-13 | MILLER, LARRY R. | General Counsel | Buy | 21,261 | — | — |
| 2026-03-13 | MILLER, LARRY R. | General Counsel | Sale | 11,187 | $5.26 | $58843.62 |
| 2026-03-13 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Buy | 55,228 | — | — |
| 2026-03-13 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Sale | 11,503 | — | — |
| 2026-03-13 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Buy | 11,503 | — | — |
| 2026-03-13 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Sale | 6,074 | $5.26 | $31949.24 |
| 2026-03-13 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Buy | 54,942 | — | — |
| 2026-03-13 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Sale | 11,445 | — | — |
| 2026-03-13 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Buy | 11,445 | — | — |
| 2026-03-13 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Sale | 3,955 | $5.26 | $20803.30 |
| 2026-01-27 | NGUYEN, DIEM | Director, Chief Executive Officer | Sale | 55,902 | — | — |
| 2026-01-27 | NGUYEN, DIEM | Director, Chief Executive Officer | Buy | 55,902 | — | — |
| 2026-01-27 | NGUYEN, DIEM | Director, Chief Executive Officer | Sale | 22,804 | $6.82 | $155523.28 |
| 2025-07-01 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Sale | 24,193 | — | — |
| 2025-07-01 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Buy | 24,193 | — | — |
| 2025-07-01 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Sale | 12,346 | $6.49 | $80125.54 |
| 2025-07-01 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Sale | 32,258 | — | — |
| 2025-07-01 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Buy | 32,258 | — | — |
| 2025-07-01 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Sale | 10,467 | $6.49 | $67930.83 |
| 2025-06-10 | PHILLIPS, HOLLY L. | Director | Buy | 24,116 | — | — |
| 2025-06-10 | PHILLIPS, HOLLY L. | Director | Sale | 19,084 | — | — |
| 2025-06-10 | PHILLIPS, HOLLY L. | Director | Buy | 19,084 | — | — |
| 2025-06-10 | PHILLIPS, HOLLY L. | Director | Sale | 5,725 | $6.22 | $35609.50 |
| 2025-06-10 | NEMIROVSKY, JULIAN | Director | Buy | 24,116 | — | — |
| 2025-06-10 | NEMIROVSKY, JULIAN | Director | Sale | 19,084 | — | — |
| 2025-06-10 | NEMIROVSKY, JULIAN | Director | Buy | 19,084 | — | — |
| 2025-06-10 | NEMIROVSKY, JULIAN | Director | Sale | 5,725 | $6.22 | $35609.50 |
| 2025-06-10 | NABEL, GARY J. | Director | Buy | 24,116 | — | — |
| 2025-06-10 | NABEL, GARY J. | Director | Sale | 19,084 | — | — |
| 2025-06-10 | NABEL, GARY J. | Director | Buy | 19,084 | — | — |
| 2025-06-10 | NABEL, GARY J. | Director | Sale | 5,725 | $6.22 | $35609.50 |
| 2025-06-10 | MARSHALL, JOSEPH W III | Director | Buy | 24,116 | — | — |
| 2025-06-10 | MARSHALL, JOSEPH W III | Director | Sale | 19,084 | — | — |
| 2025-06-10 | MARSHALL, JOSEPH W III | Director | Buy | 19,084 | — | — |
| 2025-06-10 | MARSHALL, JOSEPH W III | Director | Sale | 5,725 | $6.22 | $35609.50 |
| 2025-06-10 | KEANE, JOHN M | Director | Buy | 24,116 | — | — |
| 2025-06-10 | FORD, HAROLD EUGENE JR. | Director | Buy | 24,116 | — | — |
| 2025-06-10 | FORD, HAROLD EUGENE JR. | Director | Sale | 19,084 | — | — |
| 2025-06-10 | FORD, HAROLD EUGENE JR. | Director | Buy | 19,084 | — | — |
| 2025-06-10 | FORD, HAROLD EUGENE JR. | Director | Sale | 5,725 | $6.22 | $35609.50 |
| 2025-06-10 | DURNAN, JAYMIE A | Director | Buy | 24,116 | — | — |
| 2025-06-10 | DURNAN, JAYMIE A | Director | Sale | 19,084 | — | — |
| 2025-06-10 | DURNAN, JAYMIE A | Director | Buy | 19,084 | — | — |
| 2025-06-10 | DURNAN, JAYMIE A | Director | Sale | 5,725 | $6.22 | $35609.50 |
| 2025-04-18 | MILLER, LARRY R. | General Counsel | Buy | 13,841 | — | — |
| 2025-04-18 | MILLER, LARRY R. | General Counsel | Buy | 6,920 | — | — |
| 2025-04-18 | MILLER, LARRY R. | General Counsel | Buy | 6,920 | — | — |
| 2025-04-18 | MILLER, LARRY R. | General Counsel | Sale | 3,532 | $5.99 | $21156.68 |
| 2025-03-25 | MILLER, LARRY R. | General Counsel | Sale | 6,920 | — | — |
| 2025-03-25 | MILLER, LARRY R. | General Counsel | Buy | 6,920 | — | — |
| 2025-03-25 | MILLER, LARRY R. | General Counsel | Sale | 2,764 | $5.89 | $16279.96 |
| 2025-03-17 | KEANE, JOHN M | Director | Buy | 25,000 | — | — |
| 2025-03-13 | NGUYEN, DIEM | Director, Chief Executive Officer | Buy | 255,137 | — | — |
| 2025-03-13 | MILLER, LARRY R. | General Counsel | Buy | 63,784 | — | — |
| 2025-03-13 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Buy | 34,511 | — | — |
| 2025-03-13 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Buy | 34,336 | — | — |
| 2025-01-27 | NGUYEN, DIEM | Director, Chief Executive Officer | Sale | 55,902 | — | — |
| 2025-01-27 | NGUYEN, DIEM | Director, Chief Executive Officer | Buy | 55,902 | — | — |
| 2025-01-27 | NGUYEN, DIEM | Director, Chief Executive Officer | Sale | 23,644 | $6.34 | $149902.96 |
| 2024-10-25 | NGUYEN, DIEM | Director, Chief Executive Officer | Sale | 59,288 | — | — |
| 2024-10-25 | NGUYEN, DIEM | Director, Chief Executive Officer | Buy | 59,288 | — | — |
| 2024-10-25 | NGUYEN, DIEM | Director, Chief Executive Officer | Sale | 23,893 | $6.77 | $161755.61 |
| 2024-07-01 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Sale | 24,194 | — | — |
| 2024-07-01 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Buy | 24,194 | — | — |
| 2024-07-01 | LUCKSHIRE, DANIEL J | Executive VP & CFO | Sale | 12,347 | $7.55 | $93219.85 |
| 2024-07-01 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Sale | 32,258 | — | — |
| 2024-07-01 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Buy | 32,258 | — | — |
| 2024-07-01 | HRUBY, DENNIS E | EVP & Chief Scientific Officer | Sale | 10,467 | $7.55 | $79025.85 |
| 2024-06-11 | VARMA, JAY | Director, EVP & Chief Medical Officer | Sale | 24,712 | — | — |
| 2024-06-11 | VARMA, JAY | Director, EVP & Chief Medical Officer | Buy | 24,712 | — | — |
| 2024-06-11 | VARMA, JAY | Director, EVP & Chief Medical Officer | Sale | 7,414 | $7.86 | $58274.04 |
| 2024-06-11 | PHILLIPS, HOLLY L. | Director | Sale | 24,712 | — | — |
| 2024-06-11 | PHILLIPS, HOLLY L. | Director | Buy | 19,084 | — | — |
| 2024-06-11 | PHILLIPS, HOLLY L. | Director | Buy | 24,712 | — | — |
| 2024-06-11 | PHILLIPS, HOLLY L. | Director | Sale | 7,414 | $7.86 | $58274.04 |
| 2024-06-11 | NEMIROVSKY, JULIAN | Director | Sale | 24,712 | — | — |
| 2024-06-11 | NEMIROVSKY, JULIAN | Director | Buy | 19,084 | — | — |
| 2024-06-11 | NEMIROVSKY, JULIAN | Director | Buy | 24,712 | — | — |
| 2024-06-11 | NEMIROVSKY, JULIAN | Director | Sale | 7,414 | $7.86 | $58274.04 |
| 2024-06-11 | NABEL, GARY J. | Director | Sale | 24,712 | — | — |
| 2024-06-11 | NABEL, GARY J. | Director | Buy | 19,084 | — | — |
| 2024-06-11 | NABEL, GARY J. | Director | Buy | 24,712 | — | — |
| 2024-06-11 | NABEL, GARY J. | Director | Sale | 7,414 | $7.86 | $58274.04 |
| 2024-06-11 | MARSHALL, JOSEPH W III | Director | Sale | 24,712 | — | — |
| 2024-06-11 | MARSHALL, JOSEPH W III | Director | Buy | 19,084 | — | — |
| 2024-06-11 | MARSHALL, JOSEPH W III | Director | Buy | 24,712 | — | — |
| 2024-06-11 | MARSHALL, JOSEPH W III | Director | Sale | 7,414 | $7.86 | $58274.04 |
| 2024-06-11 | KNISELY, EVAN A. | Director | Sale | 24,712 | — | — |
| 2024-06-11 | KNISELY, EVAN A. | Director | Buy | 19,084 | — | — |
| 2024-06-11 | KNISELY, EVAN A. | Director | Buy | 24,712 | — | — |
| 2024-06-11 | KNISELY, EVAN A. | Director | Sale | 7,414 | $7.86 | $58274.04 |
Frequently asked questions
Are SIGA insiders buying or selling?
Over the transactions on record, SIGA insiders have been net sellers, with about $1.76M in stock sold across 51 sales. The entries tagged as buys are stock grants and option exercises recorded at $0, not open-market purchases.
Does insider selling at SIGA mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which SIGA insiders are selling the most?
Recent selling is concentrated in a few names. NGUYEN, DIEM accounts for the largest share on record, with about $714554.39 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.