Armata Pharmaceuticals, Inc.
ARMP- Exchange
- NYSE
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0000921114
No open-market purchases or sales by Armata Pharmaceuticals, Inc. insiders were filed in the last 90 days; 53 institutions reported holding it in 13F filings for Q2 2026, worth $32.3M in total; no superinvestor holds it.
Q1 2026 vs. Q4 2025
How the institutions holding Armata Pharmaceuticals, Inc. changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Of which not filed for Q1 2026 | Q1 2026 | Change |
|---|---|---|---|---|
| Holders | 36 | 1 | 45 | +10 |
| Shares | 1.25M | 357.6K | 3.93M | +3.04M (+341.3%) |
| Value | $7.85M | $2.25M | $40.2M | +$34.6M (+617.5%) |
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (13)
Institutions that held Armata Pharmaceuticals, Inc. at the end of Q1 2026 but not at the end of Q4 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Madison Asset Management, LLC | 2,107,675 | $21.6M | 0.27% |
| Vanguard Capital Management LLC | 366,028 | $3.75M | 0.00% |
| SEI Investments Co | 74,192 | $759.7K | 0.00% |
| Vanguard Fiduciary Trust Co | 67,864 | $694.9K | 0.00% |
| EAM Investors, LLC | 60,955 | $624.2K | 0.07% |
| Hudson Bay Capital Management LP | 17,584 | $180.1K | 0.00% |
| HRT Financial LP | 10,595 | $108.0K | 0.00% |
| Citigroup Inc | 5,160 | $52.8K | 0.00% |
| Vanguard Global Advisers, LLC | 3,964 | $40.6K | 0.00% |
| Silver Grove Financial Group, Inc. | 200 | $2.05K | 0.00% |
| Barclays PLC | 154 | $1.58K | 0.00% |
| Salem Investment Counselors Inc | 100 | $1.02K | 0.00% |
| FMR LLC | 22 | $225 | 0.00% |
Sold out (3)
Institutions that held Armata Pharmaceuticals, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Omers Administration Corp | 28,125 | $176.6K |
| Citadel Advisors LLC | 10,786 | $67.7K |
| BNP Paribas Arbitrage, SA | 710 | $4.46K |
Not filed for Q1 2026 yet (1)
Institutions that held Armata Pharmaceuticals, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Vanguard Group Inc | 357,649 | $2.25M |