Ownership history in RENAISSANCE TECHNOLOGIES LLC · 41 quarters on record
This page tracks every 13F SEC filing in which RENAISSANCE TECHNOLOGIES LLC reported a position in AC IMMUNE SA (ACIU). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | REDUCED | 668,867 | -101,552 | -13.2% | 0.00% | $2.1M | $3.14 |
| 2025 Q3 | REDUCED | 770,419 | -57,902 | -7.0% | 0.00% | $2.2M | $2.89 |
| 2025 Q2 | ADDED | 828,321 | +24,852 | +3.1% | 0.00% | $1.7M | $2.03 |
| 2025 Q1 | ADDED | 803,469 | +63,271 | +8.5% | 0.00% | $1.5M | $1.87 |
| 2024 Q4 | ADDED | 740,198 | +94,191 | +14.6% | 0.00% | $2.0M | $2.70 |
| 2024 Q3 | REDUCED | 646,007 | -6,072 | -0.9% | 0.00% | $2.4M | $3.78 |
| 2024 Q2 | ADDED | 652,079 | +136,300 | +26.4% | 0.00% | $2.6M | $3.99 |
| 2024 Q1 | ADDED | 515,779 | +98,200 | +23.5% | 0.00% | $1.5M | $2.96 |
| 2023 Q4 | REDUCED | 417,579 | -7,600 | -1.8% | 0.00% | $2.1M | $5.00 |
| 2023 Q3 | ADDED | 425,179 | +7,200 | +1.7% | 0.00% | $1.2M | $2.85 |
As of 2025 Q4 — sorted by position size