Pfeifer Andrea 4/A

What Happened
Andrea Pfeifer, CEO of AC Immune SA (ACIU), sold 10,000 common shares on April 15, 2026. The shares were disposed at a weighted average price of $3.14 each, for total proceeds of approximately $31,425. This was a sale (transaction code S), which is often routine insider selling rather than a bullish signal.

Key Details

• Transaction date: April 15, 2026 (reported on Form 4 filed April 16, 2026; amendment filed to correct direction)
• Price: weighted average $3.14; individual trade prices ranged $3.05–$3.19 (sold in multiple transactions)
• Amount: 10,000 shares sold; proceeds ≈ $31,425
• Holdings note: reporting person’s reported holdings include 1,921,005 common shares underlying outstanding restricted share units
• Amendment note: This Form 4/A corrects an earlier Form 4 that mistakenly reported a purchase of 10,000 shares — the corrected filing shows a sale
• Timeliness: initial filing was the day after the trade and later amended to correct the reported transaction; not indicated as late (no Section 16 delinquency shown)

Context
Insider sales can be for many personal or routine reasons (diversification, tax planning, etc.) and do not by themselves indicate company performance. The corrected filing is important for accurate public records; retail investors should consider this data alongside other fundamentals and insider activity trends.