AC IMMUNE SA (ACIU)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
43
Reporting holders
$58.7M
Reported value
24.0%
Of shares outstanding
0.8%
Held as options
-1
Holder change
Institutions report 24,457,392 shares against 101,742,231 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Share count carried from an earlier filing (cy2025q4i).
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BVF INC/IL | $47.2M | 19,822,436 | 1.21% | 31q | HELD |
| WELLS FARGO & COMPANY/MN | $2.4M | 1,004,041 | 0.00% | 30q | -50.0%-$2.4M |
| RENAISSANCE TECHNOLOGIES LLC | $2.0M | 840,127 | 0.00% | 31q | +34.6%+$513.5K |
| MILLENNIUM MANAGEMENT LLC | $1.8M | 773,594 | 0.00% | 9q | -2.4%-$45.4K |
| BlackRock, Inc. | $1.2M | 519,274 | 0.00% | 8q | -1.0%-$11.9K |
| DIMENSIONAL FUND ADVISORS LP | $812.1K | 340,082 | 0.00% | 14q | -12.8%-$119.6K |
| CITADEL ADVISORS LLC | $603.1K | 207,606 | 0.00% | 16q | -22.3%-$173.2K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $554.4K | 232,953 | 0.00% | 3q | -42.6%-$411.0K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $378.6K | 53,369 | 0.00% | 4q | -40.2%-$254.6K |
| MORGAN STANLEY | $313.7K | 131,815 | 0.00% | 35q | +47.7%+$101.3K |
| TWO SIGMA INVESTMENTS, LP | $244.7K | 102,825 | 0.00% | 5q | +163.0%+$151.7K |
| Qube Research & Technologies Ltd | $219.8K | 92,351 | 0.00% | new | NEW |
| UBS Group AG | $203.8K | 85,614 | 0.00% | 31q | -15.8%-$38.1K |
| GEODE CAPITAL MANAGEMENT, LLC | $147.2K | 61,854 | 0.00% | 31q | -2.7%-$4.2K |
| SIMPLEX TRADING, LLC | $105.7K | options only | 0.00% | 4q | OPTIONS |
| Jump Financial, LLC | $57.3K | 24,064 | 0.00% | 2q | +116.3%+$30.8K |
| JANE STREET GROUP, LLC | $46.4K | 19,475 | 0.00% | 3q | -66.2%-$91.0K |
| Verdad Advisers, LP | $38.8K | 16,300 | 0.04% | new | NEW |
| China Universal Asset Management Co., Ltd. | $38.5K | 16,197 | 0.00% | 11q | -9.3%-$3.9K |
| GOLDMAN SACHS GROUP INC | $34.5K | 14,497 | 0.00% | 5q | -33.0%-$17.0K |
| Quadrature Capital Ltd | $30.9K | 12,991 | 0.00% | new | NEW |
| GROUP ONE TRADING LLC | $28.3K | options only | 0.00% | 3q | OPTIONS |
| AXQ CAPITAL, LP | $24.7K | 10,398 | 0.00% | new | NEW |
| Quinn Opportunity Partners LLC | $24.0K | 10,100 | 0.00% | 7q | HELD |
| Silverberg Bernstein Capital Management LLC | $23.8K | 10,000 | 0.01% | 9q | HELD |
| EFG International AG | $23.6K | 9,900 | 0.00% | 3q | HELD |
| JPMORGAN CHASE & CO | $20.7K | 7,798 | 0.00% | 21q | +2.1% |
| BARCLAYS PLC | $17.3K | 7,278 | 0.00% | 8q | +25.7%+$3.5K |
| Banque Cantonale Vaudoise | $17.0K | 7,021 | 0.00% | 26q | HELD |
| Mirae Asset Global Investments Co., Ltd. | $10.8K | 4,552 | 0.00% | 9q | -56.6%-$14.1K |
| Tower Research Capital LLC (TRC) | $9.8K | 4,101 | 0.00% | 14q | -41.5%-$6.9K |
| CITIGROUP INC | $9.5K | 4,012 | 0.00% | 11q | +42.7%+$2.9K |
| BNP PARIBAS FINANCIAL MARKETS | $6.4K | 2,699 | 0.00% | 11q | +12.0% |
| GF FUND MANAGEMENT CO. LTD. | $5.0K | 2,084 | 0.00% | 7q | -7.0% |
| ROYAL BANK OF CANADA | $3.0K | 1,289 | 0.00% | 24q | +69.6%+$1.2K |
| SBI Securities Co., Ltd. | $2.8K | 1,197 | 0.00% | new | NEW |
| PNC Financial Services Group, Inc. | $2.4K | 1,000 | 0.00% | 2q | HELD |
| Rockefeller Capital Management L.P. | $2.4K | 1,000 | 0.00% | 4q | HELD |
| Activest Wealth Management | $2.4K | 1,000 | 0.00% | 9q | HELD |
| OSAIC HOLDINGS, INC. | $523 | 220 | 0.00% | 5q | HELD |
| Strengthening Families & Communities, LLC | $476 | 200 | 0.00% | 13q | HELD |
| Farther Finance Advisors, LLC | $102 | 43 | 0.00% | 2q | HELD |
| Caitong International Asset Management Co., Ltd | $83 | 35 | 0.00% | 2q | +1066.7% |
| SG Americas Securities, LLC | $25 | 10,327 | 0.00% | new | NEW |
| Forum Finance Group S.A. | $4 | 2,000 | 0.00% | 2q | HELD |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 43 | $58.7M | 24,457,392 | 5 | 10 | 15 | 0.8% |
| Q1 2026 | 44 | $73.1M | 25,961,969 | 7 | 12 | 15 | 2.4% |
| Q4 2025 | 42 | $80.7M | 25,310,651 | 8 | 13 | 9 | 1.5% |
| Q3 2025 | 39 | $70.3M | 24,196,268 | 5 | 9 | 13 | 0.5% |
| Q2 2025 | 39 | $48.7M | 23,968,304 | 5 | 15 | 9 | 0.2% |
| Q1 2025 | 38 | $47.6M | 25,389,198 | 4 | 11 | 13 | 0.3% |
| Q4 2024 | 44 | $73.1M | 27,019,597 | 8 | 11 | 13 | 0.2% |
| Q3 2024 | 42 | $106.8M | 27,995,298 | 4 | 8 | 18 | 0.9% |
| Q2 2024 | 44 | $114.4M | 28,409,269 | 15 | 7 | 15 | 0.9% |
| Q1 2024 | 33 | $92.3M | 31,023,319 | 7 | 9 | 5 | 0.5% |
| Q4 2023 | 32 | $154.7M | 30,815,143 | 10 | 8 | 3 | 0.4% |
| Q3 2023 | 23 | $44.2M | 15,373,934 | 1 | 6 | 5 | 0.8% |
| Q2 2023 | 29 | $46.5M | 15,431,159 | 6 | 6 | 5 | 2.0% |
| Q1 2023 | 28 | $31.3M | 13,382,548 | 4 | 1 | 5 | 0.1% |
| Q4 2022 | 27 | $25.4M | 12,418,673 | 5 | 5 | 6 | 0.1% |
| Q3 2022 | 34 | $44.5M | 14,018,714 | 5 | 7 | 10 | 0.5% |
| Q2 2022 | 34 | $50.0M | 13,801,559 | 5 | 5 | 9 | 0.4% |
| Q1 2022 | 39 | $58.5M | 14,291,922 | 3 | 10 | 13 | 2.4% |
| Q4 2021 | 47 | $76.4M | 15,130,130 | 4 | 10 | 18 | 1.9% |
| Q3 2021 | 67 | $121.3M | 17,659,476 | 17 | 21 | 16 | 2.3% |
| Q2 2021 | 59 | $147.8M | 18,193,441 | 18 | 14 | 17 | 2.4% |
| Q1 2021 | 52 | $142.8M | 18,205,501 | 16 | 10 | 17 | 3.0% |
| Q4 2020 | 48 | $106.3M | 19,936,148 | 6 | 12 | 15 | 3.0% |
| Q3 2020 | 51 | $104.0M | 20,710,673 | 14 | 14 | 12 | 2.9% |
| Q2 2020 | 41 | $137.2M | 20,384,561 | 6 | 15 | 8 | 0.0% |
| Q1 2020 | 48 | $139.4M | 20,170,057 | 13 | 8 | 18 | 0.0% |
| Q4 2019 | 48 | $162.9M | 19,124,903 | 16 | 10 | 13 | 0.0% |
| Q3 2019 | 36 | $93.0M | 18,791,229 | 3 | 11 | 13 | 0.0% |
| Q2 2019 | 40 | $100.3M | 18,071,520 | 10 | 8 | 14 | 0.0% |
| Q1 2019 | 39 | $90.8M | 17,977,191 | 16 | 13 | 6 | 0.0% |
| Q4 2018 | 38 | $192.2M | 20,338,646 | 2 | 0 | 1 | 0.0% |