SIGA SIGA Technologies, Inc.

NASDAQ
$3.29

SIGA Technologies, Inc. (SIGA) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
-5.88
8 buyers / 9 sellers
MIXED
Funds compared
17
funds with comparable SIGA positions
14 current holders · 16 prior-quarter holders
Net share change
-26.9K
+649.3K added, -676.2K cut
Position activity
1 new 7 increased 6 reduced 3 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
Tudor Investment Corporation Macro New +37.2K — $135.5K 0.0% 53
Trexquant Investment Quant Sold Out -93.4K -100.0% $340.1K 0.0% 51
Graham Capital Management Quant Macro Sold Out -29.9K -100.0% $108.9K 0.0% 49
Engineers Gate Quant Sold Out -26.0K -100.0% $94.6K 0.0% 48
Qube Research & Technologies Ltd Quant Increased +325.8K +78.5% $1.2M 0.0% 46
Schonfeld Strategic Advisors Long/Short Quant Increased +41.9K +163.5% $152.7K 0.0% 45
Aquatic Capital Management Quant Increased +21.4K +1541.4% $77.8K 0.0% 42
Point72 Asset Management, L.P. Increased +20.5K +54.3% $74.6K 0.0% 42
Man Group Event Long/Short Increased +62.8K +66.5% $228.7K 0.0% 37
D. E. Shaw & Co., Inc. Quant Reduced -191.5K -42.0% $697.0K 0.0% 37

Most significant buyers

By move score, not size.

  • Tudor Investment Corporation New · +37.2K
  • Qube Research & Technologies Ltd Increased · +325.8K
  • Schonfeld Strategic Advisors Increased · +41.9K
  • Aquatic Capital Management Increased · +21.4K
  • Point72 Asset Management, L.P. Increased · +20.5K

Most significant sellers

By move score, not size.

  • Trexquant Investment Sold Out · -93.4K
  • Graham Capital Management Sold Out · -29.9K
  • Engineers Gate Sold Out · -26.0K
  • D. E. Shaw & Co., Inc. Reduced · -191.5K
  • CITADEL ADVISORS LLC Reduced · -153.9K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Tudor Investment Corporation 2 37.2K 0 +37.2K — 0.0% New 53
Trexquant Investment 3 0 93.4K -93.4K -100.0% 0.0% Sold Out 51
Graham Capital Management 3 0 29.9K -29.9K -100.0% 0.0% Sold Out 49
Engineers Gate 4 0 26.0K -26.0K -100.0% 0.0% Sold Out 48
Qube Research & Technologies Ltd 2 740.9K 415.1K +325.8K +78.5% 0.0% Increased 46
Schonfeld Strategic Advisors 3 67.6K 25.6K +41.9K +163.5% 0.0% Increased 45
Aquatic Capital Management 4 22.8K 1.4K +21.4K +1541.4% 0.0% Increased 42
Point72 Asset Management, L.P. 1 58.2K 37.7K +20.5K +54.3% 0.0% Increased 42
Man Group 3 157.3K 94.5K +62.8K +66.5% 0.0% Increased 37
D. E. Shaw & Co., Inc. 1 264.9K 456.4K -191.5K -42.0% 0.0% Reduced 37
MILLENNIUM MANAGEMENT LLC 2 579.6K 466.3K +113.3K +24.3% 0.0% Increased 32
CITADEL ADVISORS LLC 1 551.2K 705.1K -153.9K -21.8% 0.0% Reduced 32
TWO SIGMA INVESTMENTS, LP 2 357.7K 433.7K -75.9K -17.5% 0.0% Reduced 30
RENAISSANCE TECHNOLOGIES LLC 1 425.8K 475.0K -49.2K -10.4% 0.0% Reduced 30
Winton Group 4 75.6K 124.4K -48.7K -39.2% 0.0% Reduced 27
Squarepoint Ops LLC 2 51.0K 58.6K -7.5K -12.9% 0.0% Reduced 27
AQR Capital Management 3 1.2M 1.2M +26.3K +2.2% 0.0% Increased 20

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.