Andrea Pfeifer - 18 Mar 2026 Form 3 Insider Report for AC Immune SA (ACIU)

Role
Chief Executive Officer, Director
Signature
/s/ Matthias Maurer, attorney-in-fact for Andrea Pfeifer
Issuer symbol
ACIU
Transactions as of
18 Mar 2026
Net transactions value
$0
Form type
3
Filing time
18 Mar 2026, 12:20:04 UTC
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Pfeifer Andrea Chief Executive Officer, Director EPFL INNOVATION PARK, BUILDING B, LAUSANNE, SWITZERLAND /s/ Matthias Maurer, attorney-in-fact for Andrea Pfeifer 18 Mar 2026 0001697107

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding ACIU Common Shares 3,840,288 18 Mar 2026 Direct F1
holding ACIU Common Shares 14,000 18 Mar 2026 By spouse

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding ACIU Share Option (right to buy) 18 Mar 2026 Common Shares 102,811 $9.53 Direct F2
holding ACIU Share Option (right to buy) 18 Mar 2026 Common Shares 132,075 $8.51 Direct F2
holding ACIU Share Option (right to buy) 18 Mar 2026 Common Shares 132,837 $5.39 Direct F2
holding ACIU Share Option (right to buy) 18 Mar 2026 Common Shares 174,251 $6.95 Direct F2
holding ACIU Share Option (right to buy) 18 Mar 2026 Common Shares 218,216 $7.23 Direct F2
holding ACIU Share Option (right to buy) 18 Mar 2026 Common Shares 172,500 $3.15 Direct F2
holding ACIU Share Option (right to buy) 18 Mar 2026 Common Shares 644,444 $2.03 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Includes 1,921,005 common shares underlying outstanding restricted share units.
F2 The share option is fully vested.

Remarks:

Exhibit 24 - Power of Attorney