Which hedge funds own SIGA? SIGA TECHNOLOGIES INC, Q2 2026 13F holders
17 tracked hedge funds disclosed a position in SIGA (SIGA TECHNOLOGIES INC) in their Q2 2026 13F filings, worth $30.7m in total. The largest holder by portfolio weight is AltraVue Capital, LLC at 0.6% of its book. 2 opened a new position this quarter: Atom Investors LP, Tudor Investment Corp ET AL. 4 exited: Mirabella Financial Services LLP, Graham Capital Management, L.P., Trexquant Investment LP.
- 17
- Holders Tracked managers whose filing for the quarter reports a long equity position in the security.
- 2
- New this quarter Holders whose previous filing (at most two quarters earlier) did not report the security.
- 4
- Exited this quarter Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
- $345k
- Inflow, new holders Combined value of the positions the new holders reported for the quarter.
- $942k
- Outflow, exits Combined value the exiting managers reported for the security in their previous filing.
- $30.7m
- Combined value Sum of the holders' reported positions in the security.
- 1.4%
- Share of managers holding Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.
Holders, Q2 2026
| AltraVue Capital, LLC Hedge fund | 0.6% | −4.3% | reduced |
| EntryPoint Capital, LLC Hedge fund | 0.05% | +58% | added |
| Campbell & CO Investment Adviser LLC Hedge fund | 0.02% | +32% | added |
| Atom Investors LP Hedge fund | 0.02% | – | new |
| Qube Research & Technologies Ltd Hedge fund | 0.0% | +78% | added |
| Aquatic Capital Management LLC Hedge fund | 0.0% | +1541% | added |
| Arrowstreet Capital, Limited Partnership Hedge fund | 0.0% | −3.4% | reduced |
| Renaissance Technologies LLC Hedge fund | 0.0% | −10% | reduced |
| AQR Capital Management LLC Hedge fund | 0.0% | +2.2% | added |
| Millennium Management LLC Hedge fund | 0.0% | +24% | added |
| Schonfeld Strategic Advisors LLC Hedge fund | 0.0% | +164% | added |
| Citadel Advisors LLC Hedge fund | 0.0% | −22% | reduced |
| Two Sigma Investments, LP Hedge fund | 0.0% | −18% | reduced |
| D. E. Shaw & Co., Inc. Hedge fund | 0.0% | −42% | reduced |
| Tudor Investment Corp ET AL Hedge fund | 0.0% | – | new |
| Squarepoint Ops LLC Hedge fund | 0.0% | −13% | reduced |
| Point72 Asset Management, L.P. Hedge fund | 0.0% | +54% | added |
Exited since the previous filing
| Mirabella Financial Services LLP | 0.01% | $143k |
| Graham Capital Management, L.P. | 0.01% | $160k |
| Trexquant Investment LP | 0.0% | $500k |
| Engineers Gate Manager LP | 0.0% | $139k |
Ownership over time
Who discovered SIGA first? Beta
The run: Q4 2015 → Q2 2022, ×28
| Nantahala Capital Management, LLC | Q1 2018 | – | 0.0 pts |
Split-adjusted quarter-end prices, excluding dividends. They describe the stock while each manager held it, not the return it earned.