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.
Holders of 5% or more of SIGA
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Siga Technologies Inc, largest stake first. The change is against the holder's previous filing.
No holder currently reports owning 5% or more of Siga Technologies Inc on Schedule 13D or 13G.
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
12 Schedule 13D and 13G filings on Siga Technologies Inc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Apr 25, 20256:41 PM ET | BlackRock, Inc. | 13G/A | 4.70%3.39M shares | –Below 5% | Mar 31, 2025 | SEC |
| Feb 1, 2024 | Lewis John Latane IV | 13GOld format | – | New | – | SEC |
| Feb 14, 2023 | D. E. Shaw & Co, L.P. | 13G/AOld format | – | – | – | SEC |
| Jun 24, 2022 | D. E. Shaw & Co, L.P. | 13GOld format | – | New | – | SEC |
| Feb 9, 20225:22 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 1, 20225:08 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Nov 22, 2021 | Esopus Creek Value Series Fund LP - Series A | 13D/AOld format | – | – | – | SEC |
| Sep 17, 2021 | MacAndrews & Forbes Inc. | 13D/AOld format | – | – | – | SEC |
| Aug 17, 2021 | Esopus Creek Value Series Fund LP - Series A | 13D/AOld format | – | – | – | SEC |
| Feb 23, 2021 | Esopus Creek Value Series Fund LP - Series A | 13DOld format | – | – | – | SEC |
| Feb 1, 20218:30 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 4, 2021 | Esopus Creek Value Series Fund LP - Series A | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Siga Technologies Inc shares.
No Form 144 notices for Siga Technologies Inc are on file.