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SIGA Technologies

167 hedge funds and large institutions have $192M invested in SIGA Technologies in 2025 Q1 according to their latest regulatory filings, with 21 funds opening new positions, 56 increasing their positions, 59 reducing their positions, and 23 closing their positions.

New
Increased
Maintained
Reduced
Closed

0.7% more ownership

Funds ownership: 48.47%49.16% (+0.7%)

5% less repeat investments, than reductions

Existing positions increased: 56 | Existing positions reduced: 59

9% less first-time investments, than exits

New positions opened: 21 | Existing positions closed: 23

2% less funds holding

Funds holding: 170167 (-3)

7% less capital invested

Capital invested by funds: $208M → $192M (-$15.5M)

22% less call options, than puts

Call options by funds: $621K | Put options by funds: $792K

100% less funds holding in top 10

Funds holding in top 10: 10 (-1)

Holders
167
Holders Change
-3
Holders Change %
-1.76%
% of All Funds
2.24%
Holding in Top 10
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
New
21
Increased
56
Reduced
59
Closed
23
Calls
$621K
Puts
$792K
Net Calls
-$171K
Net Calls Change
-$1.4M
Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$20.8M -$474K -80,071 -2%
Hotchkis & Wiley Capital Management
2
Hotchkis & Wiley Capital Management
California
$17.3M +$6.47M +1,093,080 +53%
Vanguard Group
3
Vanguard Group
Pennsylvania
$13.7M +$64.1K +10,817 +0.4%
AC
4
AltraVue Capital
Washington
$13.1M -$1.44M -242,570 -9%
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$12.9M +$1.34M +226,818 +11%
FWSM
6
First Wilshire Securities Management
California
$8.7M -$4.66M -787,487 -33%
American Century Companies
7
American Century Companies
Missouri
$7.51M +$584K +98,688 +8%
Citadel Advisors
8
Citadel Advisors
Florida
$6.36M +$645K +108,910 +10%
State Street
9
State Street
Massachusetts
$6.07M -$294K -49,700 -4%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$5.75M -$495K -83,572 -7%
JAM
11
Jupiter Asset Management
United Kingdom
$5.43M
RA
12
Royce & Associates
New York
$4.16M -$507K -85,644 -10%
Renaissance Technologies
13
Renaissance Technologies
New York
$3.44M +$1.24M +210,100 +50%
Arrowstreet Capital
14
Arrowstreet Capital
Massachusetts
$3.25M +$956K +161,500 +37%
New York State Common Retirement Fund
15
New York State Common Retirement Fund
New York
$3.23M
D.E. Shaw & Co
16
D.E. Shaw & Co
New York
$3M -$265K -44,805 -8%
GAI
17
General American Investors
New York
$2.96M
LCM
18
Legato Capital Management
California
$2.92M
UIC
19
Uniplan Investment Counsel
Wisconsin
$2.76M +$21.2K +3,572 +0.7%
Northern Trust
20
Northern Trust
Illinois
$2.57M +$28.3K +4,786 +1%
FP
21
Foundry Partners
Minnesota
$2.45M +$35.9K +6,054 +1%
DA
22
Denali Advisors
California
$2.14M +$71K +11,986 +3%
LSV Asset Management
23
LSV Asset Management
Illinois
$2.09M +$1.3M +219,000 +135%
Federated Hermes
24
Federated Hermes
Pennsylvania
$1.98M +$231 +39 +0%
Charles Schwab
25
Charles Schwab
California
$1.98M -$600K -101,404 -22%

SIGA Hedge Fund Activity: Q1 2025 in Review

167 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in SIGA Technologies (SIGA) for Q1 2025, worth a combined $192M — down 7.5% from $208M a quarter earlier.

Sellers outnumbered buyers: 23 funds closed out of SIGA and 21 opened new positions — a net loss of 2 holders — while 59 trimmed existing stakes and 56 added.

The largest buyer was Hotchkis & Wiley Capital Management, adding an estimated $6.47M. The largest seller was First Wilshire Securities Management, cutting an estimated $4.66M.

  • 167 institutional investors held SIGA Technologies (SIGA) as of Q1 2025, down from 170 in Q4 2024.
  • Funds reported $192M of SIGA Technologies stock for Q1 2025, down 7.5% quarter-over-quarter.
  • 21 funds opened new SIGA Technologies positions in Q1 2025 and 23 closed out, a net change of -2 holders.
  • The largest SIGA Technologies buyer in Q1 2025 was Hotchkis & Wiley Capital Management, an estimated $6.47M added.
  • The largest SIGA Technologies seller in Q1 2025 was First Wilshire Securities Management, an estimated $4.66M sold.

Based on aggregated 13F filings for Q1 2025.