AC Immune (ACIU) Insider Twyman Roy Ervin Buys 38,889 Shares

ACIU saw a flurry of insider buying activity on June 11, 2026. Key figures, including Interim CEO Martin Zuegel, purchased shares, signaling potential confidence in the company's future. The trades were not part of any pre-planned 10b5-1 plan.

Insider Buying and Selling at AC Immune SA

Several insiders bought shares of ACIU on June 11, 2026. Martin Zuegel, the Interim CEO, acquired 77,778 shares. Other notable transactions include Renee Aguiar-Lucander purchasing 38,889 shares and Carl Howard June buying 38,889 shares as well. These transactions were not executed under any pre-planned trading schemes.

Other Institutional Activity in ACIU

Institutional investors also showed interest in ACIU. BlackRock, Inc. increased its holdings by 22,109 shares, bringing its total to 524,278 shares valued at approximately $1.44 million. Meanwhile, Wells Fargo & Company reduced its position by 2,005 shares, holding 1,004,284 shares worth about $2.76 million. Millennium Management LLC significantly cut its stake by 140,685 shares, ending with 792,657 shares valued at around $2.18 million. Renaissance Technologies LLC decreased its position by 44,500 shares, now holding 624,367 shares worth approximately $1.72 million. Arrowstreet Capital, Limited Partnership added 30,035 shares to hold a total of 405,658 shares valued at about $1.12 million.

AC Immune SA Stock Down 10.6%

Shares of ACIU traded at $2.31. The stock has attracted attention from both insiders and institutional investors, reflecting varying levels of confidence in its performance.

Analysts Set New Price Targets

Analysts continue to show optimism for ACIU. On March 16, 2026, BTIG reiterated its 'buy' rating with a price target of $8. HC Wainwright & Co. maintained its 'buy' rating, setting a higher price target of $12 back in May 2025. These ratings suggest a positive outlook from the analyst community, with a consensus recommendation of 'buy' and a mean price target not specified in the data.

Bottom Line

The recent insider buying at ACIU, particularly by key executives, is noteworthy for investors tracking insider sentiment. Institutional movements also reflect a mixed but active interest in the stock. Analysts have maintained positive ratings, indicating potential for future growth. As always, it's important to remember that insider and institutional activities are backward-looking and may not reflect current positions.