ACIU
AC Immune SA
$2.18
-0.18 (-7.63%)
At close · Jul 16
Market Cap
$220.85M
Shares
101,773,573
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
The Jun 30, 2026 filing window is
still open — showing the latest known positions. Funds that have not filed yet
carry their prior-quarter positions; a fund that filed without this stock counts
as sold out.
Holders: 47
Total Value: $70,046,526
Total Shares: 25,472,951
Institutional Ownership Trend
26 quarters
Holder Concentration
Across 47 13F filersTop Holder
77.8%
of institutional value
Top 5
89.4%
of institutional value
Top 10
95.9%
of institutional value
HHI
6,101
Highly concentrated
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid BVF INC/IL | $54,511,699 | 77.82% | 19,822,436 | Shares | Defined | 2026-05-15 | ||||
| Mega WELLS FARGO & COMPANY/MN | $2,761,781 | 3.94% | 1,004,284 | Shares | Defined | 2026-05-11 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $2,179,806 | 3.11% | 792,657 | Shares | Sole | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $1,717,009 | 2.45% | 624,367 | Shares | Sole | 2026-05-14 | ||||
| Mega BlackRock, Inc. | $1,441,763 | 2.06% | 524,278 | Shares | Sole | 2026-05-13 | ||||
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $1,115,559 | 1.59% | 405,658 | Shares | Defined | 2026-05-14 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $1,072,952 | 1.53% | 390,165 | Shares | Sole | 2026-05-07 | ||||
| Large Point72 Asset Management, L.P. | $806,300 | 1.15% | 293,200 | Call | Defined | 2026-05-15 | ||||
| Mega NORTHERN TRUST CORP Bank | $765,910 | 1.09% | 278,513 | Shares | Defined | 2026-05-14 | ||||
| Mega CITADEL ADVISORS LLC | $734,890 | 1.05% | 267,233 | Shares | Defined | 2026-05-15 | ||||
| Large MARSHALL WACE, LLP | $361,509 | 0.52% | 131,458 | Shares | Other | 2026-05-15 | ||||
| Micro Dauntless Investment Group, LLC | $295,594 | 0.42% | 107,489 | Shares | Sole | 2026-05-14 | ||||
| Mega UBS Group AG | $279,479 | 0.40% | 101,629 | Shares | Defined | 2026-05-05 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $266,494 | 0.38% | 96,907 | Shares | Defined | 2026-05-13 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $245,470 | 0.35% | 89,262 | Shares | Other | 2026-05-15 | ||||
| Mega MORGAN STANLEY | $245,444 | 0.35% | 89,253 | Shares | Defined | 2026-05-15 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $174,902 | 0.25% | 63,601 | Shares | Defined | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $158,664 | 0.23% | 57,696 | Shares | Defined | 2026-05-12 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $117,975 | 0.17% | 42,900 | Call | Other | 2026-05-15 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $107,500 | 0.15% | 39,091 | Shares | Sole | 2026-05-15 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $70,400 | 0.10% | 25,600 | Put | Other | 2026-05-15 | ||||
| Mega GOLDMAN SACHS GROUP INC | $59,488 | 0.08% | 21,632 | Shares | Defined | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $57,475 | 0.08% | 20,900 | Call | Defined | 2026-05-15 | ||||
| Mid China Universal Asset Management Co., Ltd. | $49,093 | 0.07% | 17,852 | Shares | Sole | 2026-04-28 | ||||
| Mega BANK OF AMERICA CORP /DE/ Bank | $47,951 | 0.07% | 17,437 | Shares | Defined | 2026-05-18 | ||||
| Large HRT FINANCIAL LP | $47,509 | 0.07% | 17,276 | Shares | Defined | 2026-05-14 | ||||
| Mid XTX Topco Ltd | $39,336 | 0.06% | 14,304 | Shares | Defined | 2026-05-15 | ||||
| Mid GSA CAPITAL PARTNERS LLP | $31,707 | 0.05% | 11,530 | Shares | Sole | 2026-05-08 | ||||
| Mid Jump Financial, LLC | $30,593 | 0.04% | 11,125 | Shares | Defined | 2026-05-14 | ||||
| Mid Quinn Opportunity Partners LLC | $27,775 | 0.04% | 10,100 | Shares | Sole | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $27,775 | 0.04% | 10,100 | Put | Defined | 2026-05-15 | ||||
| Mid EFG International AG | $27,225 | 0.04% | 9,900 | Shares | Defined | 2026-05-15 | ||||
| Small Silverberg Bernstein Capital Management LLC | $23,800 | 0.03% | 10,000 | Shares | Sole | 2026-07-07 | ||||
| Mega JPMORGAN CHASE & CO | $21,010 | 0.03% | 7,640 | Shares | Defined | 2026-05-13 | ||||
| Mid Banque Cantonale Vaudoise | $19,307 | 0.03% | 7,021 | Shares | Sole | 2026-04-20 | ||||
| Mid Tower Research Capital LLC (TRC) | $19,274 | 0.03% | 7,009 | Shares | Defined | 2026-05-15 | ||||
| Mid SIMPLEX TRADING, LLC | $18,205 | 0.03% | 6,620 | Shares | Sole | 2026-05-14 | ||||
| Mega BARCLAYS PLC | $15,924 | 0.02% | 5,791 | Shares | Defined | 2026-05-15 | ||||
| Large Mirae Asset Global Investments Co., Ltd. | $14,429 | 0.02% | 5,247 | Shares | Sole | 2026-05-04 | ||||
| Mega CITIGROUP INC | $7,730 | 0.01% | 2,811 | Shares | Defined | 2026-05-11 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $6,627 | 0.01% | 2,410 | Shares | Defined | 2026-05-12 | ||||
| Mid GF FUND MANAGEMENT CO. LTD. | $6,165 | 0.01% | 2,242 | Shares | Sole | 2026-04-15 | ||||
| Small Forum Finance Group S.A. | $5,500 | 0.01% | 2,000 | Shares | Sole | 2026-05-07 | ||||
| Mega PNC FINANCIAL SERVICES GROUP, INC. | $2,750 | 0.00% | 1,000 | Shares | Defined | 2026-05-08 | ||||
| Large Rockefeller Capital Management L.P. | $2,750 | 0.00% | 1,000 | Shares | Defined | 2026-05-14 | ||||
| Small Activest Wealth Management | $2,380 | 0.00% | 1,000 | Shares | Sole | 2026-07-16 | ||||
| Mega ROYAL BANK OF CANADA Bank | $2,365 | 0.00% | 860 | Shares | Defined | 2026-05-15 | ||||
| Large OSAIC HOLDINGS, INC. | $607 | 0.00% | 221 | Shares | Defined | 2026-05-15 | ||||
| Small Strengthening Families & Communities, LLC | $550 | 0.00% | 200 | Shares | Sole | 2026-05-11 | ||||
| Mid Farther Finance Advisors, LLC | $118 | 0.00% | 43 | Shares | Sole | 2026-04-07 | ||||
| Small Caitong International Asset Management Co., Ltd | $8 | 0.00% | 3 | Shares | Sole | 2026-05-11 | ||||
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