Armata Pharmaceuticals
ARMP · NYSE American
$3.20+$0.13 (+4.23%)TodayMarket closed ·
Prev close $3.07
Who owns ARMP
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 80.1% of ARMP’s shares.
- Innoviva Inc68.3%
- Madison Asset Management LLC5.7%
- BlackRock Institutional Trust Company, N.A.1.4%
- Vanguard Capital Management, LLC1.3%
- Next 6 largest institutions3.4%
- All other shareholders19.9%
| Holder | Shares | % of shares |
|---|---|---|
| Innoviva Inc | 25.08M | 68.31% |
| Madison Asset Management LLC | 2.11M | 5.74% |
| BlackRock Institutional Trust Company, N.A. | 500.10K | 1.36% |
| Vanguard Capital Management, LLC | 487.97K | 1.33% |
| Millennium Management LLC | 470.50K | 1.28% |
| Geode Capital Management, L.L.C. | 270.55K | 0.74% |
| Dauntless Investment Group, LLC | 203.89K | 0.56% |
| State Street Investment Management (US) | 129.60K | 0.35% |
| Northern Trust Investments, Inc. | 87.95K | 0.24% |
| Vanguard Portfolio Management, LLC | 81.35K | 0.22% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 349.60K | 0.95% |
| iShares Russell 2000 ETF | 196.21K | 0.53% |
| Fidelity Small Cap Index Fund | 127.10K | 0.35% |
| Vanguard Extended Market Index Fund | 125.87K | 0.34% |
| iShares Russell 2000 Growth ETF | 112.22K | 0.31% |
Insider trades
Form 4 filings by officers, directors and large holders
Insiders made no open-market buys or sales of ARMP in the last 6 months.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Birx Deborah | Tax withholding | 14.04K | $59.81K |
| Gilmer Daniel B. | Award | 51.28K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 964.19K
- Days to cover
- 5.99
- % of shares outstanding
- 2.63%
- Average daily volume
- 160.89K
- Change since last report
- +0.1%
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