Siga Technologies Inc
SIGA- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001010086
No open-market purchases or sales by Siga Technologies Inc insiders were filed in the last 90 days; 160 institutions reported holding it in 13F filings for Q2 2026, worth $126.9M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, −19 vs. previous quarter
- 160
- 13F valueReported value at the end of Q2 2026
- $126.9M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding SIGA, Q2 2026
No superinvestor reported holding SIGA at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Siga Technologies Inc insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Dec 10, 2021 (view filing) | Dec 9 | 1 day | Antal JamesDirector | SSaleCommon Stock, par value $.0001 per share | −30.0K | $7.82 | −$234.6K | −22.9%100.9K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Siga Technologies Inc at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,186,282 | $15.2M | 0.00% | +692,089+19.8% | Added |
| Dimensional Fund Advisors LP | 2,719,568 | $9.90M | 0.00% | +16,844+0.6% | Added |
| AltraVue Capital, LLC | 2,327,144 | $8.47M | 0.61% | −104,880−4.3% | Reduced |
| Vanguard Capital Management LLC | 1,712,701 | $6.23M | 0.00% | −1,679−0.1% | Reduced |
| American Century Companies Inc | 1,506,065 | $5.48M | 0.00% | +188,281+14.3% | Added |
| Arrowstreet Capital, Limited Partnership | 1,474,817 | $5.37M | 0.00% | −51,143−3.4% | Reduced |
| Geode Capital Management, LLC | 1,417,092 | $5.16M | 0.00% | +101,547+7.7% | Added |
| First Wilshire Securities Management Inc | 1,339,883 | $4.88M | 1.00% | +449,385+50.5% | Added |
| AQR Capital Management LLC | 1,245,992 | $4.54M | 0.00% | +26,315+2.2% | Added |
| State Street Corp | 1,133,989 | $4.13M | 0.00% | +122,051+12.1% | Added |