Armata Pharmaceuticals, Inc. - ARMP
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 6 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | History | Added to | 357,649 | 2,246 | 0.0% | 0.0% | 1 | +60,611 | 20.41% | Q4 2025 | Jan 29, 2026 |
| 683 Capital Management, LLC | History | New | 139,860 | 878 | 0.04% | — | 2 | +139,860 | New | Q4 2025 | Feb 17, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 109,888 | 690 | 0.0% | 0.0% | 3 | +5,342 | 5.11% | Q4 2025 | Feb 09, 2026 |
| EDGEWOOD MANAGEMENT LLC | History | No change | 100,000 | 628 | 0.0% | 0.0% | 4 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| BlackRock, Inc. | History | Added to | 72,764 | 456 | 0.0% | 0.0% | 5 | +46,098 | 172.87% | Q4 2025 | Feb 12, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 68,496 | 430 | 0.0% | 0.0% | 6 | +27,200 | 65.87% | Q4 2025 | Feb 12, 2026 |
| STATE STREET CORP | History | Added to | 50,800 | 319 | 0.0% | 0.0% | 7 | +10,500 | 26.05% | Q4 2025 | Feb 13, 2026 |
| GOLDMAN SACHS GROUP INC | History | New | 45,163 | 283 | 0.0% | — | 8 | +45,163 | New | Q4 2025 | Mar 25, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | No change | 44,682 | 280 | 0.01% | 0.0% | 9 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| SeaCrest Wealth Management, LLC | History | Added to | 40,988 | 273 | 0.03% | 0.01% | 10 | +6,034 | 17.26% | Q4 2025 | Jan 12, 2026 |
| Grey Ledge Advisors, LLC | History | No change | 30,000 | 188 | 0.04% | 0.02% | 11 | 0 | 0.0% | Q4 2025 | Feb 05, 2026 |
| OMERS ADMINISTRATION Corp | History | New | 28,125 | 176 | 0.0% | — | 12 | +28,125 | New | Q4 2025 | Feb 13, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | New | 26,088 | 163 | 0.0% | — | 13 | +26,088 | New | Q4 2025 | Feb 17, 2026 |
| NORTHERN TRUST CORP | History | Added to | 24,646 | 154 | 0.0% | 0.0% | 14 | +5,373 | 27.88% | Q4 2025 | Feb 17, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | New | 24,360 | 152 | 0.0% | — | 15 | +24,360 | New | Q4 2025 | Feb 17, 2026 |
| Qube Research & Technologies Ltd | History | New | 23,356 | 146 | 0.0% | — | 16 | +23,356 | New | Q4 2025 | Feb 17, 2026 |
| JANE STREET GROUP, LLC | History | New | 17,153 | 107 | 0.0% | — | 17 | +17,153 | New | Q4 2025 | Feb 12, 2026 |
| CAPTRUST FINANCIAL ADVISORS | History | No change | 13,140 | 82 | 0.0% | 0.0% | 18 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| CITADEL ADVISORS LLC | History | New | 10,786 | 67 | 0.0% | — | 19 | +10,786 | New | Q4 2025 | Feb 17, 2026 |
| Dauntless Investment Group, LLC | History | New | 6,131 | 38 | 0.03% | — | 20 | +6,131 | New | Q4 2025 | Feb 17, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 3,516 | 22 | 0.0% | — | 21 | +3,509 | 50128.57% | Q4 2025 | Feb 17, 2026 |
| MORGAN STANLEY | History | Added to | 2,269 | 14 | 0.0% | — | 22 | +2,267 | 113350.0% | Q4 2025 | Feb 13, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 1,604 | 10 | 0.0% | 0.0% | 23 | +1,249 | 351.83% | Q4 2025 | Feb 17, 2026 |
| Cornerstone National Bank & Trust Co | History | No change | 1,428 | 8 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| UBS Group AG | History | Added to | 1,021 | 6 | 0.0% | — | 25 | +977 | 2220.45% | Q4 2025 | Jan 29, 2026 |
| Measured Wealth Private Client Group, LLC | History | No change | 1,000 | 6 | 0.0% | 0.0% | 26 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | New | 710 | 4 | 0.0% | — | 27 | +710 | New | Q4 2025 | Feb 10, 2026 |
| Trifecta Capital Advisors, LLC | History | No change | 714 | 4 | 0.0% | 0.0% | 28 | 0 | 0.0% | Q4 2025 | Jan 30, 2026 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | History | No change | 571 | 3 | 0.0% | 0.0% | 29 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 357 | 2 | 0.0% | 0.0% | 30 | -100 | -21.88% | Q4 2025 | Feb 17, 2026 |
| GROUP ONE TRADING LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -3,000 | -100.0% | Q3 2025 | Nov 12, 2025 |
| WHITTIER TRUST CO | History | New | 100 | 0 | — | — | — | +100 | New | Q4 2025 | Jan 26, 2026 |
| SALEM INVESTMENT COUNSELORS INC | History | Closed out | 0 | 0 | — | — | — | -100 | -100.0% | Q3 2025 | Oct 07, 2025 |
| Geneos Wealth Management Inc. | History | New | 92 | 0 | — | — | — | +92 | New | Q4 2025 | Jan 28, 2026 |
| JPMORGAN CHASE & CO | History | Closed out | 0 | 0 | — | — | — | -24 | -100.0% | Q3 2025 | Nov 26, 2025 |
| BARCLAYS PLC | History | Closed out | 0 | 0 | — | — | — | -6 | -100.0% | Q3 2025 | Mar 31, 2026 |
| WELLS FARGO & COMPANY/MN | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| MAI Capital Management | History | No change | 71 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Team Financial Group, LLC | History | No change | 71 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 13, 2026 |
| SBI Securities Co., Ltd. | History | No change | 3 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 03, 2026 |