AC Immune SA
ACIU- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001651625
No open-market purchases or sales by AC Immune SA insiders were filed in the last 90 days; 43 institutions reported holding it in 13F filings for Q2 2026, worth $75.2M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, −3 vs. previous quarter
- 43
- 13F valueReported value at the end of Q2 2026
- $75.2M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding ACIU, Q2 2026
No superinvestor reported holding ACIU at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by AC Immune SA insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 18, 2026 (view filing) | May 15 | 3 days | Pfeifer AndreaChief Executive Officer | SSaleCommon Share | −10.0K | $2.79 | −$27.9K | −0.3%3.82M after | 10b5-1 |
| Apr 16, 2026 (view filing) | Apr 15 | 1 day | Pfeifer AndreaChief Executive Officer | SSaleShare | −10.0K | $3.14 | −$31.4K | −0.3%3.83M after | Amended10b5-1 |
Top 10 13F holders, Q2 2026
The largest institutional positions in AC Immune SA at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BVF Inc | 19,822,436 | $47.2M | 1.21% | 00.0% | Unchanged |
| Banque Cantonale Vaudoise | 7,021 | $17.0M | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 1,004,041 | $2.39M | 0.00% | −2430.0% | Reduced |
| Renaissance Technologies LLC | 840,127 | $2.00M | 0.00% | +215,760+34.6% | Added |
| Millennium Management LLC | 773,594 | $1.84M | 0.00% | −19,063−2.4% | Reduced |
| BlackRock, Inc. | 519,274 | $1.24M | 0.00% | −5,004−1.0% | Reduced |
| Dimensional Fund Advisors LP | 340,082 | $812.1K | 0.00% | −50,083−12.8% | Reduced |
| Arrowstreet Capital, Limited Partnership | 232,953 | $554.4K | 0.00% | −172,705−42.6% | Reduced |
| Citadel Advisors LLC | 207,606 | $494.1K | 0.00% | −59,627−22.3% | Reduced |
| Morgan Stanley | 131,815 | $313.7K | 0.00% | +42,562+47.7% | Added |