Armata Pharmaceuticals, Inc. (ARMP) Institutional Ownership

Institutions by Trading Activity

36,193,479Shares Outstanding

735,692Shares held by institutions

$6,540,302Value of institutional holdings

2.03%Institutional ownership %

6.10%Shares Changed QoQ

29No. of institutional investors

Armata Pharmaceuticals, Inc. (NYSE:ARMP) is held by 36 institutional investors per 13F filings through December 2025.

They owned 3.4% of outstanding stock in December 2025, up from 2.1% the prior quarter.
They increased total shares held in ARMP by 64.91% quarter over quarter, and investors in Armata Pharmaceuticals increased 44.0% from a year ago.
Among the 36 funds, 24 bought more Armata Pharmaceuticals shares, 1 sold down, and 11 held their ground.
The aggregate institutional position in Armata Pharmaceuticals amounted to 1.25Mn shares as of December 2025, up by 491.12K shares quarter on quarter, and down 154.24K shares year over year.
VANGUARD GROUP INC leads ownership in ARMP with 357.65K shares as of December 31, 2025, equal to 0.99% of outstanding shares.
The biggest buyers of Armata Pharmaceuticals for the quarter ending December 2025 included 683 Capital Management, LLC (139.86K), VANGUARD GROUP INC (60.61K), BlackRock, Inc. (46.1K), Goldman Sachs Group Inc (45.16K), OMERS ADMINISTRATION Corp (28.12K).
The largest sales of ARMP for the quarter ending December 2025 came from OSAIC HOLDINGS, INC. (100).
Business Quant data shows the 10 biggest positions in Armata Pharmaceuticals as of December 2025 are held by VANGUARD GROUP INC (357.65K), 683 Capital Management, LLC (139.86K), GEODE CAPITAL MANAGEMENT, LLC (109.89K), EDGEWOOD MANAGEMENT LLC (100.0K), BlackRock, Inc. (72.76K), RENAISSANCE TECHNOLOGIES LLC (68.5K), State Street Corp (50.8K), Goldman Sachs Group Inc (45.16K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (44.68K), SeaCrest Wealth Management, LLC (40.99K).

735,692 Total Shares Held

Rows:

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	72,764	46,098	172.87%	$456,958.00
VANGUARD GROUP INC	31 Dec, 2025	357,649	60,611	20.41%	$2,246,036.00
SeaCrest Wealth Management, LLC	31 Dec, 2025	40,988	6,034	17.26%	$273,800.00
683 Capital Management, LLC	31 Dec, 2025	139,860	139,860	0.00%	$878,321.00
Grey Ledge Advisors, LLC	31 Dec, 2025	30,000	0	0.00%	$188,400.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	109,888	5,342	5.11%	$690,280.00
Qube Research & Technologies Ltd	31 Dec, 2025	23,356	23,356	0.00%	$146,676.00
EDGEWOOD MANAGEMENT LLC	31 Dec, 2025	100,000	0	0.00%	$628,000.00
Dauntless Investment Group, LLC	31 Dec, 2025	6,131	6,131	0.00%	$38,503.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	68,496	27,200	65.87%	$430,155.00
Cornerstone National Bank & Trust Co	31 Dec, 2025	1,428	0	0.00%	$8,968.00
State Street Corp	31 Dec, 2025	50,800	10,500	26.05%	$319,024.00
UBS Group AG	31 Dec, 2025	1,021	977	2,220.45%	$6,412.00
Goldman Sachs Group Inc	31 Dec, 2025	45,163	45,163	0.00%	$283,624.00
Measured Wealth Private Client Group, LLC	31 Dec, 2025	1,000	0	0.00%	$6,280.00
BRIDGEWAY CAPITAL MANAGEMENT, LLC	31 Dec, 2025	44,682	0	0.00%	$280,603.00
Trifecta Capital Advisors, LLC	31 Dec, 2025	714	0	0.00%	$4,484.00
OMERS ADMINISTRATION Corp	31 Dec, 2025	28,125	28,125	0.00%	$176,625.00
OSAIC HOLDINGS, INC.	31 Dec, 2025	357	-100	-21.88%	$2,242.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	26,088	26,088	0.00%	$163,833.00

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