AC Immune (ACIU) stock: insider trades, news & valuation
Net sellingShare price and insider trades
AC Immune insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 1 sold $59K of ACIU stock on the open market.
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ACIU insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | $31K | 1 | $59K | 2 |
Valuation, profit and volume
Summary
Over the past 12 months, 0 AC Immune SA insiders reported open-market purchases totaling $0, while 1 insider reported sales totaling $59K. 2 of 2 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| May 18SEC | Andrea PfeiferCEO | Sell Plan | 10,0003,820,288 held (−0%) | $2.79 | $28K | -10.4% | — |
| Apr 16SEC | Andrea PfeiferCEO | Buy | 10,0003,830,288 held (+0%) | $3.14 | $31K | -20.4% | — |
| Apr 16SEC | Andrea PfeiferCEO | Sell Plan | 10,0003,830,288 held (−0%) | $3.14 | $31K | -20.4% | — |
Insiders at AC Immune SA
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Andrea PfeiferCEO | $31K | $59K | May 18, 2026 | — |
ACIU stock: common questions
Are AC Immune SA insiders buying ACIU stock?
In the past 12 months, 0 insiders reported open-market purchases of ACIU worth $0. The latest was CEO Andrea Pfeifer bought $31K of ACIU at $3.14 — first open-market purchase in our records.
Are AC Immune SA insiders selling ACIU stock?
1 insiders reported sales worth $59K over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is ACIU's 52-week range?
Over the past year ACIU has traded between $2.12 and $3.84. It last closed at $2.50 on Oct 9, 2026.