Armata Pharmaceuticals, Inc. (ARMP) — Institutional Holders, Q2 2026
53 institutional investment managers reported a ARMP position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $32.3M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
ARMP in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- BlackRockAdded · +494,936 sh+$3.2M
- MILLENNIUM MANAGEMENTAdded · +212,508 sh+$1.4M
- GEODE CAPITAL MANAGEMENTAdded · +155,995 sh+$1.0M
- VANGUARD CAPITAL MANAGEMENTAdded · +121,940 sh+$790.2K
- Dauntless Investment GroupAdded · +113,311 sh+$734.3K
Biggest sellers
- 683 Capital ManagementSold out · -137,000 sh-$887.8K
- SEI INVESTMENTSSold out · -74,192 sh-$480.8K
- SUSQUEHANNA INTERNATIONAL GROUP, LLPSold out · -64,759 sh-$419.6K
- Informed MomentumSold out · -60,955 sh-$395.0K
- GOLDMAN SACHS GROUPSold out · -60,953 sh-$395.0K
ARMP 13F holders ranked 1–53 of 53
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Madison Asset Management#1 · 2,107,175 sh | 2,107,175 | $13.7M | 0.16% | 0.0% |
| 2 | BlackRock#2 · 559,986 sh | 559,986 | $3.6M | <0.01% | +760.9% |
| 3 | VANGUARD CAPITAL MANAGEMENT#3 · 487,968 sh | 487,968 | $3.2M | <0.01% | +33.3% |
| 4 | MILLENNIUM MANAGEMENT#4 · 470,500 sh | 470,500 | $3.0M | <0.01% | +82.4% |
| 5 | GEODE CAPITAL MANAGEMENT#5 · 270,550 sh | 270,550 | $1.8M | <0.01% | +136.2% |
| 6 | Dauntless Investment Group#6 · 203,891 sh | 203,891 | $1.3M | 1.04% | +125.1% |
| 7 | STATE STREET#7 · 129,600 sh | 129,600 | $839.8K | 0.00% | +155.1% |
| 8 | NORTHERN#8 · 89,791 sh | 89,791 | $581.8K | <0.01% | +264.3% |
| 9 | VANGUARD PORTFOLIO MANAGEMENT#9 · 81,354 sh | 81,354 | $527.2K | 0.00% | New |
| 10 | EDGEWOOD MANAGEMENT#10 · 80,000 sh | 80,000 | $518.4K | <0.01% | -20.0% |
| 11 | VANGUARD FIDUCIARY#11 · 79,495 sh | 79,495 | $515.1K | <0.01% | +17.1% |
| 12 | Grey Ledge Advisors#12 · 50,000 sh | 50,000 | $324.0K | 0.07% | +66.7% |
| 13 | RENAISSANCE TECHNOLOGIES#13 · 48,318 sh | 48,318 | $313.1K | <0.01% | +25.5% |
| 14 | BRIDGEWAY CAPITAL MANAGEMENT#14 · 44,682 sh | 44,682 | $289.5K | <0.01% | 0.0% |
| 15 | SeaCrest Wealth Management#15 · 41,524 sh | 41,524 | $269.1K | — | 0.0% |
| 16 | Bank of New York Mellon#16 · 29,749 sh | 29,749 | $192.8K | 0.00% | New |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT#17 · 28,857 sh | 28,857 | $187.0K | 0.00% | New |
| 18 | Hudson Bay Capital Management#18 · 17,584 sh | 17,584 | $113.9K | <0.01% | 0.0% |
| 19 | Nuveen#19 · 15,905 sh | 15,905 | $103.1K | 0.00% | New |
| 20 | NEW YORK STATE COMMON RETIREMENT FUND#20 · 15,400 sh | 15,400 | $99.8K | <0.01% | New |
| 21 | UBS Group AG#21 · 13,697 sh | 13,697 | $88.8K | 0.00% | +214.9% |
| 22 | CAPTRUST FINANCIAL ADVISORS#22 · 13,140 sh | 13,140 | $85.1K | <0.01% | 0.0% |
| 23 | DEUTSCHE BANK AG\#23 · 11,966 sh | 11,966 | $77.5K | 0.00% | New |
| 24 | BANK OF AMERICA#24 · 11,305 sh | 11,305 | $73.3K | 0.00% | -3.5% |
| 25 | XTX Topco Ltd#25 · 10,826 sh | 10,826 | $70.2K | <0.01% | New |
| 26 | WELLS FARGO & COMPANY#26 · 10,819 sh | 10,819 | $70.1K | 0.00% | New |
| 27 | RHUMBLINE ADVISERS#27 · 8,453 sh | 8,453 | $54.8K | 0.00% | New |
| 28 | Police & Firemen's Retirement System of New Jersey#28 · 6,095 sh | 6,095 | $39.5K | <0.01% | New |
| 29 | CITIGROUP#29 · 5,603 sh | 5,603 | $36.3K | 0.00% | +8.6% |
| 30 | MIRAE ASSET GLOBAL ETFS Ltd.#30 · 5,461 sh | 5,461 | $35.4K | 0.00% | New |
| 31 | JPMORGAN CHASE#31 · 4,916 sh | 4,916 | $31.8K | 0.00% | New |
| 32 | MORGAN STANLEY#32 · 4,583 sh | 4,583 | $29.7K | 0.00% | +36.1% |
| 33 | Vanguard Global Advisers#33 · 3,964 sh | 3,964 | $25.7K | 0.00% | 0.0% |
| 34 | BNP PARIBAS FINANCIAL MARKETS#34 · 3,038 sh | 3,038 | $19.7K | 0.00% | New |
| 35 | BARCLAYS PLC#35 · 2,984 sh | 2,984 | $19.3K | 0.00% | +1837.7% |
| 36 | STRS OHIO#36 · 2,300 sh | 2,300 | $14.9K | <0.01% | New |
| 37 | Tower Research Capital (TRC)#37 · 2,034 sh | 2,034 | $13.2K | <0.01% | +634.3% |
| 38 | Cornerstone National Bank#38 · 1,428 sh | 1,428 | $8.4K | — | 0.0% |
| 39 | Legal & General Group Plc#39 · 1,161 sh | 1,161 | $7.5K | 0.00% | New |
| 40 | Ameritas Investment Partners#40 · 1,076 sh | 1,076 | $7.0K | <0.01% | New |
| 41 | Measured Wealth Private Client Group#41 · 1,000 sh | 1,000 | $6.5K | <0.01% | 0.0% |
| 42 | Russell Investments Group, Ltd.#42 · 969 sh | 969 | $6.3K | 0.00% | New |
| 43 | SIMPLEX TRADING#43 · 794 sh | 794 | $5.1K | 0.00% | New |
| 44 | Trifecta Capital Advisors#44 · 714 sh | 714 | $4.6K | — | 0.0% |
| 45 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT#45 · 571 sh | 571 | $3.7K | 0.00% | 0.0% |
| 46 | ROYAL BANK OF CANADA#46 · 497 sh | 497 | $3.0K | 0.00% | New |
| 47 | FMR#47 · 364 sh | 364 | $2.4K | 0.00% | +1554.5% |
| 48 | Silver Grove Financial Group#48 · 200 sh | 200 | $1.3K | <0.01% | 0.0% |
| 49 | SALEM INVESTMENT COUNSELORS#49 · 100 sh | 100 | $648.00 | — | 0.0% |
| 50 | Geneos Wealth Management#50 · 92 sh | 92 | $596.00 | 0.00% | 0.0% |
| 51 | WHITTIER#51 · 100 sh | 100 | $544.00 | 0.00% | 0.0% |
| 52 | Sterling Capital Management#52 · 42 sh | 42 | $272.00 | — | New |
| 53 | SBI Securities , Ltd.#53 · 3 sh | 3 | $19.00 | — | 0.0% |
Funds that sold out of ARMP in Q2 2026 (11)
Held ARMP at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| 683 Capital Management137,000 sh | 137,000 | $1.4M |
| SEI INVESTMENTS74,192 sh | 74,192 | $759.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP64,759 sh | 64,759 | $663.1K |
| Informed Momentum60,955 sh | 60,955 | $624.2K |
| GOLDMAN SACHS GROUP60,953 sh | 60,953 | $624.2K |
| JANE STREET GROUP27,998 sh | 27,998 | $286.7K |
| Qube Research & Technologies Ltd26,628 sh | 26,628 | $272.7K |
| HRT FINANCIAL10,595 sh | 10,595 | $108.0K |
| OSAIC357 sh | 357 | $3.7K |
| MAI Capital Management71 sh | 71 | $728.00 |
| Team Financial Group71 sh | 71 | $727.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.