AC Immune Ownership & Insider Activity

AC Immune (ACIU) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 0.1% of shares outstanding. Institutional investors hold 1.0%.

Shares Outstanding

101.774M

Shares Float

48.807M

Insider Shares Owned

122.544K

Insider % Owned

0.1%

Institutional Shares Held

1.026M

Institutional % Held

1.0%

Ownership Breakdown

Net Insider Activity by Month

AC Immune Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
May 15, 2026	Andrea Pfeifer	CHIEF EXECUTIVE OFFICER	SELL	10.000K	$2.79	$28K