SIGA — SIGA TECHNOLOGIES INC
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2018-03-22.
Performance
Technicals
Others in Healthcare
Measured signals that fired on SIGA
| date | signal | measured base rate |
|---|---|---|
| 2026-08-12 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-07-27 | Volume shock without a price move price | -1.33% over 21 days · t = -4.53 · n = 16,432 statistically distinguishable from its control group |
| 2026-07-15 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-04-13 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-03-11 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-06-09 | Phillips Holly L. Director | Disposition to issuer | 7.2K | 4.39 | 31.8K |
| 2026-06-09 | Ford Harold Eugene Jr. Director | Disposition to issuer | 7.2K | 4.39 | 31.8K |
| 2026-06-09 | Nemirovsky Julian Director | Disposition to issuer | 7.2K | 4.39 | 31.8K |
| 2026-06-09 | DURNAN JAYMIE A Director | Disposition to issuer | 7.2K | 4.39 | 31.8K |
| 2026-06-09 | KEANE JOHN M Director | Disposition to issuer | 7.2K | 4.39 | 31.8K |
| 2026-06-09 | Nabel Gary J. Director | Disposition to issuer | 7.2K | 4.39 | 31.8K |
| 2026-06-09 | Marshall Joseph W III Director | Disposition to issuer | 7.2K | 4.39 | 31.8K |
| 2026-06-09 | Marshall Joseph W III Director | Option exercise | 24.1K | — | — |
| 2026-06-09 | Ford Harold Eugene Jr. Director | Option exercise | 24.1K | — | — |
| 2026-06-09 | Nabel Gary J. Director | Option exercise | 24.1K | — | — |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 18.7M | 3.5M |
| DIMENSIONAL FUND ADVISORS LP | 14.5M | 2.7M |
| AltraVue Capital, LLC | 13.0M | 2.4M |
| VANGUARD CAPITAL MANAGEMENT LLC | 9.2M | 1.7M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 8.2M | 1.5M |
| AMERICAN CENTURY COMPANIES INC | 7.1M | 1.3M |
| GEODE CAPITAL MANAGEMENT, LLC | 7.0M | 1.3M |
| AQR CAPITAL MANAGEMENT LLC | 6.5M | 1.2M |
| STATE STREET CORP | 5.4M | 1.0M |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC | 4.8M | 890.5K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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