Who owns Armata Pharmaceuticals, Inc.?
Institutional ownership of ARMP from SEC Form 13F filings across 45 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
45
13F holders
$16.0M
value, 2026 filers
6.7%
of shares outstanding (2.5M sh)
18
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of ARMP's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 559,986 | $3.6M | 0.0% | 1.5% | +760.9% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 487,968 | $3.2M | 0.0% | 1.3% | -33.3% |
| 3 | MILLENNIUM MANAGEMENT LLC | 470,500 | $3.0M | 0.0% | 1.3% | +82.4% |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | 270,550 | $1.8M | 0.0% | 0.7% | +136.2% |
| 5 | NORTHERN TRUST CORP | 89,791 | $581,845 | 0.0% | 0.2% | +264.3% |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLCNEW | 81,354 | $527,174 | 0.0% | 0.2% | new |
| 7 | EDGEWOOD MANAGEMENT LLC | 80,000 | $518,400 | 0.0% | 0.2% | -20.0% |
| 8 | VANGUARD FIDUCIARY TRUST CO | 79,495 | $515,128 | 0.0% | 0.2% | +17.1% |
| 9 | Grey Ledge Advisors, LLC | 50,000 | $324,000 | 0.1% | 0.1% | +66.7% |
| 10 | SeaCrest Wealth Management, LLC | 41,524 | $269,076 | 0.0% | 0.1% | 0.0% |
| 11 | Bank of New York Mellon CorpNEW | 29,749 | $192,774 | 0.0% | 0.1% | new |
| 12 | Sixth Street Partners Management Company, L.P.NEW | 28,857 | $186,993 | 0.0% | 0.1% | new |
| 13 | CHARLES SCHWAB INVESTMENT MANAGEMENT INCNEW | 28,857 | $186,993 | 0.0% | 0.1% | new |
| 14 | Hudson Bay Capital Management LP | 17,584 | $113,944 | 0.0% | 0% | 0.0% |
| 15 | Nuveen, LLCNEW | 15,905 | $103,064 | 0.0% | 0% | new |
| 16 | NEW YORK STATE COMMON RETIREMENT FUNDNEW | 15,400 | $99,792 | 0.0% | 0% | new |
| 17 | UBS Group AG | 13,697 | $88,757 | 0.0% | 0% | +214.9% |
| 18 | CAPTRUST FINANCIAL ADVISORS | 13,140 | $85,147 | 0.0% | 0% | 0.0% |
| 19 | DEUTSCHE BANK AG\NEW | 11,966 | $77,540 | 0.0% | 0% | new |
| 20 | BANK OF AMERICA CORP /DE/ | 11,305 | $73,256 | 0.0% | 0% | -3.5% |
| 21 | WELLS FARGO & COMPANY/MN | 10,819 | $70,104 | 0.0% | 0% | +1081800.0% |
| 22 | RHUMBLINE ADVISERSNEW | 8,453 | $54,770 | 0.0% | 0% | new |
| 23 | Police & Firemen's Retirement System of New JerseyNEW | 6,095 | $39,496 | 0.0% | 0% | new |
| 24 | CITIGROUP INC | 5,603 | $36,307 | 0.0% | 0% | +8.6% |
| 25 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.NEW | 5,461 | $35,387 | 0.0% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.