Armata Pharmaceuticals, Inc.: which funds bought and sold
Institutions that bought and sold Armata Pharmaceuticals shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 36 institutions that filed 13F reports for both quarters added to or opened positions in Armata Pharmaceuticals, and 14 cut or closed them. Together they added a net 1.1M shares, +26.9% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 39K shares (+6.3%); index fund managers were net buyers of 1.0M shares (+152.0%). 19 opened a new position and 11 sold out entirely.
Bought, Q2 2026 36 institutions, 19 of them new holders Sold, Q2 2026 14 institutions, 11 of them sold out
Net change, all compared +1.1M shares (+26.9%)
Net change, active managers +39K shares (+6.3%), 3 bought, 3 sold
Buyers versus sellers
36 bought 14 14 sold
Active managers and hedge funds 3 bought · 3 sold · +39K
Index fund managers 9 bought · 0 sold · +1.0M
Other institutions 24 bought · 11 sold · −31K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Blackrock, Inc. Index funds | +495K +760.9% | 560K | $3.6M |
| Millennium Management LLC Hedge fund | +213K +82.4% | 471K | $3M |
| Geode Capital Management, LLC Index funds | +156K +136.2% | 271K | $1.8M |
| Vanguard Capital Management LLC Index funds | +122K +33.3% | 488K | $3.2M |
| Dauntless Investment Group, LLC | +113K +125.1% | 204K | $1.3M |
| Vanguard Portfolio Management LLC Index funds | +81K New position | 81K | $527,174 |
| State Street Corp Index funds | +79K +155.1% | 130K | $839,808 |
| Northern Trust Corp Index funds | +65K +264.3% | 90K | $581,845 |
| Bank Of New York Mellon Corp | +30K New position | 30K | $192,774 |
| Charles Schwab Investment Management Inc Index funds | +29K New position | 29K | $186,993 |
| Grey Ledge Advisors, LLC | +20K +66.7% | 50K | $324,000 |
| Nuveen, LLC | +16K New position | 16K | $103,064 |
| New York State Common Retirement Fund | +15K New position | 15K | $99,792 |
| Deutsche Bank Ag\ | +12K New position | 12K | $77,540 |
| Vanguard Fiduciary Trust Co Index funds | +12K +17.1% | 79K | $515,128 |
| Xtx Topco Ltd | +11K New position | 11K | $70,152 |
| Wells Fargo & Company | +11K +1081800.0% | 11K | $70,104 |
| Renaissance Technologies LLC Hedge fund | +9,822 +25.5% | 48K | $313,101 |
| UBS Group AG | +9,348 +214.9% | 14K | $88,757 |
| Rhumbline Advisers Index funds | +8,453 New position | 8,453 | $54,770 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Millennium Management LLC Hedge fund | +213K +82.4% | 471K | $3M |
| Renaissance Technologies LLC Hedge fund | +9,822 +25.5% | 48K | $313,101 |
| FMR LLC Active manager | +342 +1554.5% | 364 | $2,360 |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| 683 Capital Management, LLC Hedge fund | −137K Sold out | 0 | — |
| Sei Investments Co | −74K Sold out | 0 | — |
| Susquehanna International Group, LLP | −65K Sold out | 0 | — |
| Informed Momentum Co LLC | −61K Sold out | 0 | — |
| Goldman Sachs Group Inc | −61K Sold out | 0 | — |
| Jane Street Group, LLC | −28K Sold out | 0 | — |
| Qube Research & Technologies Ltd Hedge fund | −27K Sold out | 0 | — |
| Edgewood Management LLC Active manager | −20K −20.0% | 80K | $518,400 |
| HRT Financial LP | −11K Sold out | 0 | — |
| Madison Asset Management, LLC | −500 0.0% | 2.1M | $13.7M |
| Bank Of America Corp | −409 −3.5% | 11K | $73,256 |
| Osaic Holdings, Inc. | −357 Sold out | 0 | — |
| Mai Capital Management | −71 Sold out | 0 | — |
| Team Financial Group, LLC | −71 Sold out | 0 | — |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| 683 Capital Management, LLC Hedge fund | −137K Sold out | 0 | — |
| Qube Research & Technologies Ltd Hedge fund | −27K Sold out | 0 | — |
| Edgewood Management LLC Active manager | −20K −20.0% | 80K | $518,400 |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Vanguard Portfolio Management LLCIndex funds | 81K | $527,174 |
| Bank Of New York Mellon Corp | 30K | $192,774 |
| Charles Schwab Investment Management IncIndex funds | 29K | $186,993 |
| Nuveen, LLC | 16K | $103,064 |
| New York State Common Retirement Fund | 15K | $99,792 |
| Deutsche Bank Ag\ | 12K | $77,540 |
| Xtx Topco Ltd | 11K | $70,152 |
| Rhumbline AdvisersIndex funds | 8,453 | $54,770 |
| Police & Firemen'S Retirement System Of New Jersey | 6,095 | $39,496 |
| Mirae Asset Global Etfs Holdings Ltd. | 5,461 | $35,387 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| 683 Capital Management, LLCHedge fund | 137K | $1.4M |
| Sei Investments Co | 74K | $759,726 |
| Susquehanna International Group, LLP | 65K | $663,132 |
| Informed Momentum Co LLC | 61K | $624,179 |
| Goldman Sachs Group Inc | 61K | $624,159 |
| Jane Street Group, LLC | 28K | $286,700 |
| Qube Research & Technologies LtdHedge fund | 27K | $272,671 |
| HRT Financial LP | 11K | $108,000 |
| Osaic Holdings, Inc. | 357 | $3,656 |
| Mai Capital Management | 71 | $728 |
Who holds the shares
- Institutions reporting
- 53
- Ten largest holders
- 89.9% of 13F-reported shares
- Index fund managers
- 34.8% of 13F-reported shares
- Active managers and hedge funds
- 13.3% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 3 | 3 | 0 | 2 | +39K | +6.3% |
| Index fund managers | 9 | 0 | 3 | 0 | +1.0M | +152.0% |
| Other institutions | 24 | 11 | 16 | 9 | −31K | −1.2% |
← Back to Armata Pharmaceuticals, Inc. · Insiders · Politicians