ACIU
AC IMMUNE N (ACIU)
NASDAQ
$2.44+$0.02 (+0.83%)
Price as of Jun 03, 2026 7:28 PM EDT
  • $292.9M
    Market Cap
  • 46.67%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BVF INC/IL
19.48%
19.8M
0 (0.00%)
Mar 31, 2026
BLACKROCK INC.
2.56%
2.6M
+65,479 (+2.51%)
Jun 30, 2024
BLACKROCK FUNDING, INC. /DE
2.17%
2.2M
-461,789 (-20.87%)
Dec 31, 2024
WELLS FARGO & COMPANY/MN
0.99%
1.0M
-2,005 (-0.20%)
Mar 31, 2026
MILLENNIUM MANAGEMENT LLC
0.78%
792,657
-140,685 (-17.75%)
Mar 31, 2026
RENAISSANCE TECHNOLOGIES LLC
0.61%
624,367
-44,500 (-7.13%)
Mar 31, 2026
BLACKROCK, INC.
0.52%
524,278
+22,109 (+4.22%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions401.1M (93.74%)
  • Mutual Funds22.9M (5.34%)
  • Insiders3.9M (0.91%)
  • Other0 (0.00%)

Insider Transactions

  • 0.91% (3.9M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 1
    Number of InsiderSelling (last 12 months)
  • $10.6M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Pfeifer Andrea
Chief Executive Officer
Sell
May 15, 2026
$27,935.00
10,000
$2.79
3.8M