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Armata Pharmaceuticals
ARMP

45 hedge funds and large institutions have $40.2M invested in Armata Pharmaceuticals in 2026 Q1 according to their latest regulatory filings, with 13 funds opening new positions, 11 increasing their positions, 4 reducing their positions, and 3 closing their positions.

New
Increased
Maintained
Reduced
Closed

412% more capital invested

Capital invested by funds: $7.85M → $40.2M (+$32.4M)

333% more first-time investments, than exits

New positions opened: 13 | Existing positions closed: 3

175% more repeat investments, than reductions

Existing positions increased: 11 | Existing positions reduced: 4

25% more funds holding

Funds holding: 36 → 45 (+9)

7.29% more ownership

Funds ownership: 3.43% → 10.72% (+7.3%)

Holders
45
Holders Change
+9
Holders Change %
+25%
% of All Funds
0.55%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
13
Increased
11
Reduced
4
Closed
3
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
MAM
Madison Asset Management
Wisconsin
+$17.7M
2
Millennium Management
Millennium Management
New York
+$1.95M
3
DIG
Dauntless Investment Group
New Hampshire
+$711K
4
SEI Investments
SEI Investments
Pennsylvania
+$624K
5
EI
EAM Investors
California
+$513K

Top Sellers

Rank Fund Capital Flow
1
Renaissance Technologies
Renaissance Technologies
New York
-$252K
2
OAC
OMERS Administration Corp
Ontario, Canada
-$177K
3
Citadel Advisors
Citadel Advisors
Florida
-$67.7K
4
BlackRock
BlackRock
New York
-$64.9K
5
6CM
683 Capital Management
New York
-$24.1K
Name Holding Trade Value Shares
Change 		Change in
Stake
Citigroup
26
Citigroup
New York
$52.8K +$43.4K +5,160 New
UBS Group
27
UBS Group
Switzerland
$44.5K +$28K +3,328 +326%
VGA
28
Vanguard Global Advisers
Pennsylvania
$40.6K +$33.4K +3,964 New
Morgan Stanley
29
Morgan Stanley
New York
$34.5K +$9.24K +1,098 +48%
CNBT
30
Cornerstone National Bank & Trust
Illinois
$15.1K – – –
MWPCG
31
Measured Wealth Private Client Group
New Hampshire
$10.2K – – –
TCA
32
Trifecta Capital Advisors
Illinois
$7.31K – – –
Northwestern Mutual Wealth Management
33
Northwestern Mutual Wealth Management
Wisconsin
$5.85K – – –
Osaic Holdings
34
Osaic Holdings
Arizona
$3.66K – – –
TRCT
35
Tower Research Capital (TRC)
New York
$2.84K -$11.2K -1,327 -83%
SGFG
36
Silver Grove Financial Group
New York
$2.05K +$1.68K +200 New
Barclays
37
Barclays
United Kingdom
$1.58K +$1.3K +154 New
WT
38
Whittier Trust
California
$1.05K – – –
SIC
39
Salem Investment Counselors
North Carolina
$1.02K +$842 +100 New
GWM
40
Geneos Wealth Management
Colorado
$942 – – –
MCM
41
MAI Capital Management
Ohio
$728 – – –
TFG
42
Team Financial Group
California
$727 – – –
Fidelity Investments
43
Fidelity Investments
Massachusetts
$225 +$185 +22 New
SS
44
SBI Securities
Japan
$31 – – –
Wells Fargo
45
Wells Fargo
California
$5 – – –
OAC
46
OMERS Administration Corp
Ontario, Canada
– -$177K -28,125 Closed
Citadel Advisors
47
Citadel Advisors
Florida
– -$67.7K -10,786 Closed
BNP Paribas Financial Markets
48
BNP Paribas Financial Markets
France
– -$4.46K -710 Closed
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ARMP Hedge Fund Activity: Q1 2026 in Review

45 of the 8,128 institutional investors tracked by Wall St. Rank reported a position in Armata Pharmaceuticals (ARMP) for Q1 2026, worth a combined $40.2M — up 412% from $7.85M a quarter earlier.

Buyers outnumbered sellers: 13 funds opened new ARMP positions and 3 closed out — a net gain of 10 holders — while 11 added to existing stakes and 4 trimmed.

The largest buyer was Madison Asset Management, opening a new position worth an estimated $17.7M. The largest seller was Renaissance Technologies, cutting an estimated $252K.

  • 45 institutional investors held Armata Pharmaceuticals (ARMP) as of Q1 2026, up from 36 in Q4 2025.
  • Funds reported $40.2M of Armata Pharmaceuticals stock for Q1 2026, up 412% quarter-over-quarter.
  • 13 funds opened new Armata Pharmaceuticals positions in Q1 2026 and 3 closed out, a net change of +10 holders.
  • The largest Armata Pharmaceuticals buyer in Q1 2026 was Madison Asset Management, an estimated $17.7M added.
  • The largest Armata Pharmaceuticals seller in Q1 2026 was Renaissance Technologies, an estimated $252K sold.

Based on aggregated 13F filings for Q1 2026.