AC Immune SA: which funds bought and sold
Institutions that bought and sold AC Immune SA 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, 16 institutions that filed 13F reports for both quarters added to or opened positions in AC Immune SA, and 24 cut or closed them. Together they sold a net 503K shares, −2.0% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 95K shares (−4.0%); index fund managers were net sellers of 285K shares (−32.9%). 6 opened a new position and 8 sold out entirely.
Bought, Q2 2026 16 institutions, 6 of them new holders Sold, Q2 2026 24 institutions, 8 of them sold out
Net change, all compared −503K shares (−2.0%)
Net change, active managers −95K shares (−4.0%), 4 bought, 5 sold
Buyers versus sellers
16 bought 11 24 sold
Active managers and hedge funds 4 bought · 5 sold · −95K
Index fund managers 0 bought · 3 sold · −285K
Other institutions 12 bought · 16 sold · −123K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Renaissance Technologies LLC Hedge fund | +216K +34.6% | 840K | $2M |
| Qube Research & Technologies Ltd Hedge fund | +92K New position | 92K | $219,795 |
| Two Sigma Investments, LP Hedge fund | +64K +163.0% | 103K | $244,723 |
| Morgan Stanley | +43K +47.7% | 132K | $313,720 |
| Verdad Advisers, LP | +16K New position | 16K | $38,794 |
| Quadrature Capital Ltd Hedge fund | +13K New position | 13K | $30,919 |
| Jump Financial, LLC | +13K +116.3% | 24K | $57,272 |
| Axq Capital, LP | +10K New position | 10K | $24,747 |
| SG Americas Securities, LLC | +10K New position | 10K | $25,000 |
| Barclays PLC | +1,487 +25.7% | 7,278 | $17,322 |
| Citigroup Inc | +1,201 +42.7% | 4,012 | $9,549 |
| Sbi Securities Co., Ltd. | +1,197 New position | 1,197 | $2,849 |
| Royal Bank Of Canada | +428 +56.3% | 1,188 | $3,000 |
| BNP Paribas Financial Markets | +289 +12.0% | 2,699 | $6,424 |
| Jpmorgan Chase & Co | +158 +2.1% | 7,798 | $20,743 |
| Caitong International Asset Management Co., Ltd | +32 +1066.7% | 35 | $83 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Renaissance Technologies LLC Hedge fund | +216K +34.6% | 840K | $2M |
| Qube Research & Technologies Ltd Hedge fund | +92K New position | 92K | $219,795 |
| Two Sigma Investments, LP Hedge fund | +64K +163.0% | 103K | $244,723 |
| Quadrature Capital Ltd Hedge fund | +13K New position | 13K | $30,919 |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Northern Trust Corp Index funds | −279K Sold out | 0 | — |
| Arrowstreet Capital, Limited Partnership Hedge fund | −173K −42.6% | 233K | $554,428 |
| Marshall Wace, LLP Hedge fund | −131K Sold out | 0 | — |
| Acadian Asset Management LLC Active manager | −97K Sold out | 0 | — |
| Citadel Advisors LLC Hedge fund | −60K −22.3% | 208K | $494,103 |
| Dimensional Fund Advisors LP | −50K −12.8% | 340K | $812,145 |
| Jane Street Group, LLC | −38K −66.2% | 19K | $46,350 |
| Susquehanna International Group, LLP | −36K −40.2% | 53K | $127,018 |
| Millennium Management LLC Hedge fund | −19K −2.4% | 774K | $1.8M |
| Bank Of America Corp | −17K Sold out | 0 | — |
| HRT Financial LP | −17K Sold out | 0 | — |
| UBS Group AG | −16K −15.8% | 86K | $203,762 |
| Xtx Topco Ltd | −14K Sold out | 0 | — |
| Gsa Capital Partners LLP | −12K Sold out | 0 | — |
| Goldman Sachs Group Inc | −7,135 −33.0% | 14K | $34,503 |
| Simplex Trading, LLC | −6,620 Sold out | 0 | — |
| Blackrock, Inc. Index funds | −5,004 −1.0% | 519K | $1.2M |
| Tower Research Capital LLC (TRC) | −2,908 −41.5% | 4,101 | $9,760 |
| Geode Capital Management, LLC Index funds | −1,747 −2.7% | 62K | $147,212 |
| China Universal Asset Management Co., Ltd. | −1,655 −9.3% | 16K | $38,549 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Arrowstreet Capital, Limited Partnership Hedge fund | −173K −42.6% | 233K | $554,428 |
| Marshall Wace, LLP Hedge fund | −131K Sold out | 0 | — |
| Acadian Asset Management LLC Active manager | −97K Sold out | 0 | — |
| Citadel Advisors LLC Hedge fund | −60K −22.3% | 208K | $494,103 |
| Millennium Management LLC Hedge fund | −19K −2.4% | 774K | $1.8M |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Qube Research & Technologies LtdHedge fund | 92K | $219,795 |
| Verdad Advisers, LP | 16K | $38,794 |
| Quadrature Capital LtdHedge fund | 13K | $30,919 |
| SG Americas Securities, LLC | 10K | $25,000 |
| Axq Capital, LP | 10K | $24,747 |
| Sbi Securities Co., Ltd. | 1,197 | $2,849 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Northern Trust CorpIndex funds | 279K | $765,911 |
| Marshall Wace, LLPHedge fund | 131K | $361,511 |
| Acadian Asset Management LLCActive manager | 97K | $266,000 |
| Bank Of America Corp | 17K | $47,952 |
| HRT Financial LP | 17K | $47,000 |
| Xtx Topco Ltd | 14K | $39,336 |
| Gsa Capital Partners LLP | 12K | $32,000 |
| Simplex Trading, LLC | 6,620 | $18,205 |
Who holds the shares
- Institutions reporting
- 43
- Ten largest holders
- 98.0% of 13F-reported shares
- Index fund managers
- 2.4% of 13F-reported shares
- Active managers and hedge funds
- 9.2% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 4 | 5 | 2 | 2 | −95K | −4.0% |
| Index fund managers | 0 | 3 | 0 | 1 | −285K | −32.9% |
| Other institutions | 12 | 16 | 4 | 5 | −123K | −0.6% |