An2 Therapeutics, Inc.: which funds bought and sold
Institutions that bought and sold An2 Therapeutics 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, 43 institutions that filed 13F reports for both quarters added to or opened positions in An2 Therapeutics, and 28 cut or closed them. Together they added a net 2.7M shares, +12.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 1.4M shares (+18.3%); index fund managers were net buyers of 2.7M shares (+140.2%). 28 opened a new position and 14 sold out entirely.
Bought, Q2 2026 43 institutions, 28 of them new holders Sold, Q2 2026 28 institutions, 14 of them sold out
Net change, all compared +2.7M shares (+12.3%)
Net change, active managers +1.4M shares (+18.3%), 9 bought, 7 sold
Buyers versus sellers
43 bought 9 28 sold
Active managers and hedge funds 9 bought · 7 sold · +1.4M
Index fund managers 9 bought · 0 sold · +2.7M
Other institutions 25 bought · 21 sold · −1.4M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Blackrock, Inc. Index funds | +1.3M +422.5% | 1.7M | $8.1M |
| Citadel Advisors LLC Hedge fund | +797K +513.2% | 952K | $4.6M |
| Commodore Capital LP Hedge fund | +600K +25.7% | 2.9M | $14.2M |
| Summittx Capital, L.P. | +597K New position | 597K | $2.9M |
| Balyasny Asset Management L.P. Hedge fund | +556K New position | 556K | $2.7M |
| Geode Capital Management, LLC Index funds | +411K +143.5% | 698K | $3.4M |
| Vanguard Capital Management LLC Index funds | +228K +22.5% | 1.2M | $6M |
| State Street Corp Index funds | +196K +170.5% | 312K | $1.5M |
| Vanguard Portfolio Management LLC Index funds | +180K New position | 180K | $869,235 |
| Northern Trust Corp Index funds | +172K +397.5% | 215K | $1M |
| Millennium Management LLC Hedge fund | +96K +4.3% | 2.3M | $11.2M |
| Goldman Sachs Group Inc | +88K New position | 88K | $425,596 |
| Dimensional Fund Advisors LP | +76K New position | 76K | $368,058 |
| Walleye Capital LLC Hedge fund | +72K New position | 72K | $349,153 |
| Bank Of New York Mellon Corp | +68K New position | 68K | $327,552 |
| Charles Schwab Investment Management Inc Index funds | +64K New position | 64K | $310,825 |
| Vanguard Fiduciary Trust Co Index funds | +59K +43.0% | 197K | $953,093 |
| ADAR1 Capital Management, LLC Hedge fund | +45K +324.3% | 59K | $284,631 |
| Velan Capital Investment Management LP | +40K New position | 40K | $193,600 |
| Nuveen, LLC | +35K New position | 35K | $171,012 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Citadel Advisors LLC Hedge fund | +797K +513.2% | 952K | $4.6M |
| Commodore Capital LP Hedge fund | +600K +25.7% | 2.9M | $14.2M |
| Balyasny Asset Management L.P. Hedge fund | +556K New position | 556K | $2.7M |
| Millennium Management LLC Hedge fund | +96K +4.3% | 2.3M | $11.2M |
| Walleye Capital LLC Hedge fund | +72K New position | 72K | $349,153 |
| ADAR1 Capital Management, LLC Hedge fund | +45K +324.3% | 59K | $284,631 |
| Price T Rowe Associates Inc Active manager | +22K New position | 22K | $107,000 |
| Two Sigma Investments, LP Hedge fund | +16K New position | 16K | $77,019 |
| FMR LLC Active manager | +61 New position | 61 | $295 |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Woodline Partners LP Hedge fund | −534K −53.7% | 460K | $2.2M |
| Bank Of Nova Scotia | −459K Sold out | 0 | — |
| Jane Street Group, LLC | −304K Sold out | 0 | — |
| Bank Of Montreal | −260K Sold out | 0 | — |
| Bank Of America Corp | −248K −63.0% | 146K | $705,686 |
| Cantor Fitzgerald, L. P. | −200K Sold out | 0 | — |
| Morgan Stanley | −185K −78.9% | 49K | $238,995 |
| Stonepine Capital Management, LLC | −162K −22.7% | 552K | $2.7M |
| Ameriprise Financial Inc | −159K −22.9% | 537K | $2.6M |
| Landscape Capital Management, L.L.C. | −131K −43.8% | 167K | $810,438 |
| Sio Capital Management, LLC | −127K −19.4% | 530K | $2.6M |
| Centiva Capital, LP Hedge fund | −75K Sold out | 0 | — |
| Renaissance Technologies LLC Hedge fund | −69K −34.8% | 130K | $627,748 |
| Peapod Lane Capital LLC | −60K Sold out | 0 | — |
| Prosight Management, LP | −41K −8.0% | 475K | $2.3M |
| Persistent Asset Partners Ltd | −38K Sold out | 0 | — |
| Hudson Bay Capital Management LP Hedge fund | −35K Sold out | 0 | — |
| HRT Financial LP | −33K Sold out | 0 | — |
| Qube Research & Technologies Ltd Hedge fund | −24K Sold out | 0 | — |
| Xtx Topco Ltd | −22K Sold out | 0 | — |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Woodline Partners LP Hedge fund | −534K −53.7% | 460K | $2.2M |
| Centiva Capital, LP Hedge fund | −75K Sold out | 0 | — |
| Renaissance Technologies LLC Hedge fund | −69K −34.8% | 130K | $627,748 |
| Hudson Bay Capital Management LP Hedge fund | −35K Sold out | 0 | — |
| Qube Research & Technologies Ltd Hedge fund | −24K Sold out | 0 | — |
| Marshall Wace, LLP Hedge fund | −18K Sold out | 0 | — |
| Federated Hermes, Inc. Active manager | −7,873 −94.6% | 449 | $2,173 |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Summittx Capital, L.P. | 597K | $2.9M |
| Balyasny Asset Management L.P.Hedge fund | 556K | $2.7M |
| Vanguard Portfolio Management LLCIndex funds | 180K | $869,235 |
| Goldman Sachs Group Inc | 88K | $425,596 |
| Dimensional Fund Advisors LP | 76K | $368,058 |
| Walleye Capital LLCHedge fund | 72K | $349,153 |
| Bank Of New York Mellon Corp | 68K | $327,552 |
| Charles Schwab Investment Management IncIndex funds | 64K | $310,825 |
| Velan Capital Investment Management LP | 40K | $193,600 |
| Nuveen, LLC | 35K | $171,012 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Bank Of Nova Scotia | 459K | $1.6M |
| Jane Street Group, LLC | 304K | $1M |
| Bank Of Montreal | 260K | $889,634 |
| Cantor Fitzgerald, L. P. | 200K | $684,000 |
| Centiva Capital, LPHedge fund | 75K | $256,500 |
| Peapod Lane Capital LLC | 60K | $206,903 |
| Persistent Asset Partners Ltd | 38K | $130,490 |
| Hudson Bay Capital Management LPHedge fund | 35K | $118,349 |
| HRT Financial LP | 33K | $112,000 |
| Qube Research & Technologies LtdHedge fund | 24K | $82,655 |
Who holds the shares
- Institutions reporting
- 66
- Ten largest holders
- 69.7% of 13F-reported shares
- Index fund managers
- 18.7% of 13F-reported shares
- Active managers and hedge funds
- 37.9% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 9 | 7 | 5 | 4 | +1.4M | +18.3% |
| Index fund managers | 9 | 0 | 3 | 0 | +2.7M | +140.2% |
| Other institutions | 25 | 21 | 20 | 10 | −1.4M | −11.8% |