AC Immune (ACIU)
Develops protein-misfolding therapies and diagnostics for neurodegenerative diseases.
$2.73
After hours−0.01 (−0.36%)
At close$2.74(+3.20%)
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13F · 13D/G · Form 4
| Institutions | 24.05% | 24.47M ADS | |
|---|---|---|---|
| 47 holders · as of Jun 30, 2026 | |||
| Insiders | 4.41% | 4.49M ADS | |
| 8 holders · as of Jun 15, 2026 | |||
| Other | 71.54% | 72.79M ADS | |
| remainder | |||
101.74M ADS as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
47 holders · 24.47M shares · 6 new positions · 17 increased · 15 reduced · 10 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BVF Inc/IL | 19.82M | 19.48% | 0 | Aug 14, 2026 |
| Wells Fargo & Company/MN | 1.00M | 0.99% | −243 | Aug 14, 2026 |
| Renaissance Technologies LLC | 840.1K | 0.83% | +215.8K | Aug 13, 2026 |
| Millennium Management LLC | 773.6K | 0.76% | −19.1K | Aug 14, 2026 |
| BlackRock, Inc. | 519.3K | 0.51% | −5.0K | Aug 7, 2026 |
| Dimensional Fund Advisors LP | 340.1K | 0.33% | −50.1K | Aug 11, 2026 |
| Arrowstreet Capital, Limited Partnership | 233.0K | 0.23% | −172.7K | Aug 13, 2026 |
| Citadel Advisors LLC | 207.6K | 0.20% | −59.6K | Sep 2, 2026 |
13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| May 15, 2026 | Andrea Pfeiferdirector, officer: Chief Executive Officer | Sale | 10,000 | $2.79 | 3,820,288 |
| Apr 15, 2026 | Andrea Pfeiferdirector, officer: Chief Executive Officer | Purchase | 10,000 | $3.14 | 3,830,288 |
| Apr 15, 2026 | Andrea Pfeiferdirector, officer: Chief Executive Officer | Sale | 10,000 | $3.14 | 3,830,288 |
House and Senate disclosures
Not reported.