ACIU
AC Immune S.A.
NASDAQ · Healthcare · Biotechnology · CH
$2.86
−2.39%0
Insider buys (3m)
0
Insider sells (3m)
$0.00
Net value (3m)
+25.8%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Jun 15, 2026 | June Carl Howard · director | A-Award | 38,889 | $2.62 |
| Jun 15, 2026 | Buetler Monika · director | A-Award | 17,751 | $0.00 |
| Jun 15, 2026 | Buetler Monika · director | A-Award | 41,667 | $2.62 |
| Jun 15, 2026 | June Carl Howard · director | A-Award | 16,568 | $0.00 |
| Jun 15, 2026 | Twyman Roy Ervin · director | A-Award | 16,568 | $0.00 |
| Jun 15, 2026 | Twyman Roy Ervin · director | A-Award | 38,889 | $2.62 |
| Jun 15, 2026 | AGUIAR-LUCANDER RENEE · director | A-Award | 16,568 | $0.00 |
| Jun 15, 2026 | AGUIAR-LUCANDER RENEE · director | A-Award | 38,889 | $2.62 |
| Jun 15, 2026 | Zuegel Martin · director, officer: Interim CEO | A-Award | 33,136 | $0.00 |
| Jun 15, 2026 | Zuegel Martin · director, officer: Interim CEO | A-Award | 77,778 | $2.62 |
| May 18, 2026 | Pfeifer Andrea · director, officer: Chief Executive Officer | Sale | 10,000 | $2.79 |
| Apr 16, 2026 | Pfeifer Andrea · director, officer: Chief Executive Officer | Purchase | 10,000 | $3.14 |
| Apr 16, 2026 | Pfeifer Andrea · director, officer: Chief Executive Officer | Sale | 10,000 | $3.14 |
Institutional positioning
13F filings over the trailing two quarters
New 15Increased 24Reduced 34Sold out 10
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BVF INC/IL | Unchanged | 19,822,436 | May 15, 2026 |
| BVF INC/IL | Unchanged | 19,822,436 | Aug 14, 2026 |
| WELLS FARGO & COMPANY/MN | Reduced | 1,004,284 | Jul 8, 2026 |
| WELLS FARGO & COMPANY/MN | Reduced | 1,004,041 | Aug 14, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 840,127 | Aug 13, 2026 |
| MILLENNIUM MANAGEMENT LLC | Reduced | 792,657 | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | Reduced | 773,594 | Aug 14, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 624,367 | May 14, 2026 |
| BLACKROCK, INC. | Increased | 524,278 | May 13, 2026 |
| BlackRock, Inc. | Reduced | 519,274 | Aug 7, 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 405,658 | May 14, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 390,165 | May 7, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 340,082 | Aug 11, 2026 |
| CITADEL ADVISORS LLC | Increased | 298,233 | May 15, 2026 |
| POINT72 ASSET MANAGEMENT, L.P. | Reduced | 293,200 | May 15, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Jun 15, 2026