ARMP Armata Pharmaceuticals, Inc.
Armata Pharmaceuticals, Inc. (ARMP) Institutional Ownership
What the institutions did with ARMP last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Madison Asset Management, LLC | 2.1M | 42.3% |
| BlackRock, Inc. | 560.0K | 11.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 488.0K | 9.8% |
| MILLENNIUM MANAGEMENT LLC | 470.5K | 9.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 270.6K | 5.4% |
| Dauntless Investment Group, LLC | 203.9K | 4.1% |
| STATE STREET CORP | 129.6K | 2.6% |
| NORTHERN TRUST CORP | 89.8K | 1.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 81.4K | 1.6% |
| EDGEWOOD MANAGEMENT LLC | 80.0K | 1.6% |
| VANGUARD FIDUCIARY TRUST CO | 79.5K | 1.6% |
| Grey Ledge Advisors, LLC | 50.0K | 1.0% |
| RENAISSANCE TECHNOLOGIES LLC | 48.3K | 1.0% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 44.7K | 0.9% |
| SeaCrest Wealth Management, LLC | 41.5K | 0.8% |
| Bank of New York Mellon Corp | 29.7K | 0.6% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 28.9K | 0.6% |
| Hudson Bay Capital Management LP | 17.6K | 0.4% |
| Nuveen, LLC | 15.9K | 0.3% |
| NEW YORK STATE COMMON RETIREMENT FUND | 15.4K | 0.3% |
| UBS Group AG | 13.7K | 0.3% |
| CAPTRUST FINANCIAL ADVISORS | 13.1K | 0.3% |
| DEUTSCHE BANK AG\ | 12.0K | 0.2% |
| BANK OF AMERICA CORP /DE/ | 11.3K | 0.2% |
| XTX Topco Ltd | 10.8K | 0.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 65.1K | 560.0K | +494.9K |
| MILLENNIUM MANAGEMENT LLC | Increased | 258.0K | 470.5K | +212.5K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 114.6K | 270.6K | +156.0K |
| 683 Capital Management, LLC | Sold Out | 137.0K | 0 | -137.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 366.0K | 488.0K | +121.9K |
| Dauntless Investment Group, LLC | Increased | 90.6K | 203.9K | +113.3K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New | 0 | 81.4K | +81.4K |
| STATE STREET CORP | Increased | 50.8K | 129.6K | +78.8K |
| SEI INVESTMENTS CO | Sold Out | 74.2K | 0 | -74.2K |
| NORTHERN TRUST CORP | Increased | 24.6K | 89.8K | +65.1K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold Out | 64.8K | 0 | -64.8K |
| Informed Momentum Co LLC | Sold Out | 61.0K | 0 | -61.0K |
| GOLDMAN SACHS GROUP INC | Sold Out | 61.0K | 0 | -61.0K |
| Bank of New York Mellon Corp | New | 0 | 29.7K | +29.7K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | New | 0 | 28.9K | +28.9K |
| JANE STREET GROUP, LLC | Sold Out | 28.0K | 0 | -28.0K |
| Qube Research & Technologies Ltd | Sold Out | 26.6K | 0 | -26.6K |
| EDGEWOOD MANAGEMENT LLC | Reduced | 100.0K | 80.0K | -20.0K |
| Grey Ledge Advisors, LLC | Increased | 30.0K | 50.0K | +20.0K |
| Nuveen, LLC | New | 0 | 15.9K | +15.9K |
| NEW YORK STATE COMMON RETIREMENT FUND | New | 0 | 15.4K | +15.4K |
| DEUTSCHE BANK AG\ | New | 0 | 12.0K | +12.0K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 67.9K | 79.5K | +11.6K |
| XTX Topco Ltd | New | 0 | 10.8K | +10.8K |
| WELLS FARGO & COMPANY/MN | Increased | 1 | 10.8K | +10.8K |
| HRT FINANCIAL LP | Sold Out | 10.6K | 0 | -10.6K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 38.5K | 48.3K | +9.8K |
| UBS Group AG | Increased | 4.3K | 13.7K | +9.3K |
| RHUMBLINE ADVISERS | New | 0 | 8.5K | +8.5K |
| Police & Firemen's Retirement System of New Jersey | New | 0 | 6.1K | +6.1K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | New | 0 | 5.5K | +5.5K |
| JPMORGAN CHASE & CO | New | 0 | 4.9K | +4.9K |
| BNP PARIBAS FINANCIAL MARKETS | New | 0 | 3.0K | +3.0K |
| BARCLAYS PLC | Increased | 154 | 3.0K | +2.8K |
| STRS OHIO | New | 0 | 2.3K | +2.3K |
| Tower Research Capital LLC (TRC) | Increased | 277 | 2.0K | +1.8K |
| MORGAN STANLEY | Increased | 3.4K | 4.6K | +1.2K |
| Legal & General Group Plc | New | 0 | 1.2K | +1.2K |
| Ameritas Investment Partners, Inc. | New | 0 | 1.1K | +1.1K |
| Russell Investments Group, Ltd. | New | 0 | 969 | +969 |
| SIMPLEX TRADING, LLC | New | 0 | 794 | +794 |
| Madison Asset Management, LLC | Reduced | 2.1M | 2.1M | -500 |
| ROYAL BANK OF CANADA | New | 0 | 497 | +497 |
| CITIGROUP INC | Increased | 5.2K | 5.6K | +443 |
| BANK OF AMERICA CORP /DE/ | Reduced | 11.7K | 11.3K | -409 |
| OSAIC HOLDINGS, INC. | Sold Out | 357 | 0 | -357 |
| FMR LLC | Increased | 22 | 364 | +342 |
| MAI Capital Management | Sold Out | 71 | 0 | -71 |
| Team Financial Group, LLC | Sold Out | 71 | 0 | -71 |
| Sterling Capital Management LLC | New | 0 | 42 | +42 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.