Ac Immune SAACIU

13F holders, Q3 2025 (September 30)
40holders −2
4new positions
6sold out
3famous investors
$2.89avg. 13F price*

At the end of Q3 2025, 40 institutions reported holding Ac Immune SA (ACIU) in their 13F filings, down 2 from Q2 2025. 4 opened new positions and 6 sold out. The largest holders were BVF Inc. ($57.3M), Wells Fargo & Company ($2.9M) and Millennium Management ($2.6M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).

Company
Ac Immune SA
CUSIP
H00263105
Latest filing quarter
Q2 2026

History

Number of 13F holders

01020304050 Q1 2024: 37Q1 2024Q2 2024: 45Q2 2024Q3 2024: 43Q3 2024Q4 2024: 45Q4 2024Q1 2025: 41Q1 2025Q2 2025: 42Q2 2025Q3 2025: 40Q3 2025Q4 2025: 42Q4 2025Q1 2026: 47Q1 2026Q2 2026: 43Q2 2026

Total Exit/New Position Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions4$663K
Exits6$800K

All 13F filers, Q2 2025 → Q3 2025: 871,153 shares bought and 749,466 shares sold, net +121,687 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 40 holders

BVF Inc. 2.32% No change 19,822,436 $57.3M
Wells Fargo & Company 0.00% Reduce -1.4% 1,010,521 $2.9M
Millennium Management 0.00% Add +206.8% 894,532 $2.6M
Renaissance Technologies 0.00% Reduce -7.0% 770,419 $2.2M
BlackRock, Inc. 0.00% Add +0.1% 411,848 $1.2M
Acadian Asset Management LLC 0.00% Add +0.4% 413,237 $1.2M
Northern Trust Corp. 0.00% Reduce -26.1% 281,953 $815K
Deutsche Bank AG 0.00% No change 253,375 $732K
Assenagon Asset Management S.A. 0.00% New 189,892 $549K
Dimensional Fund Advisors LP 0.00% Reduce -10.9% 177,111 $513K
Morgan Stanley 0.00% Add +26.3% 92,033 $266K
Geode Capital Management, LLC 0.00% No change 63,601 $184K
Susquehanna International Group, LLP 0.00% New 21,840 $63K
Two Sigma Advisers, LP 0.00% Reduce -27.3% 20,938 $61K
Citadel Advisors 0.00% Reduce -86.2% 20,113 $58K
Banque Cantonale Vaudoise 0.00% No change 18,440 $53K
China Universal Asset Management Co., Ltd. 0.00% Reduce -12.7% 17,600 $51K
Two Sigma Investments, LP 0.00% Reduce -45.3% 16,775 $48K
Private Advisor Group, LLC 0.00% New 16,600 $48K
UBS Group AG 0.00% Add +120.0% 16,424 $47K
Sei Investments Co. 0.00% Reduce -36.2% 15,884 $46K
Goldman Sachs Group Inc. 0.00% Add +21.9% 12,635 $37K
Quinn Opportunity Partners LLC 0.00% No change 10,100 $29K
Silverberg Bernstein Capital Management LLC 0.02% No change 10,000 $29K
JPMorgan Chase & Co. 0.00% Add +18.8% 7,259 $21K
Bank of America Corp. 0.00% Add +6.2% 5,916 $17K
Barclays PLC 0.00% Reduce -33.1% 5,290 $15K
State of Tennessee, Department of Treasury 0.00% No change 5,126 $15K
Mirae Asset Global Investments Co., Ltd. 0.00% Add +0.1% 3,882 $11K
Tower Research Capital LLC (TRC) 0.00% Add +7.5% 3,306 $10K
Simplex Trading, LLC 0.00% Add +924.5% 3,258 $9K
BNP Paribas Financial Markets 0.00% Add +111.2% 2,803 $8K
GF Fund Management Co. LTD. 0.00% Reduce -12.0% 2,160 $6K
Citigroup Inc. 0.00% Add +0.8% 1,931 $6K
Royal Bank of Canada 0.00% Add +13.8% 1,808 $5K
Activest Wealth Management 0.00% No change 1,000 $3K
Rockefeller Capital Management L.P. 0.00% New 1,000 $3K
SBI Securities Co., Ltd. 0.00% Reduce -3.0% 548 $2K
Osaic Holdings, Inc. 0.00% No change 251 $724
Strengthening Families & Communities, LLC 0.00% No change 200 $578

"% of holder's portfolio" is ACIU's weight in each manager's 13F, not the share of Ac Immune SA the manager owns.