SEI Investments
ACIU icon

SEI Investments’s AC Immune ACIU Stock Holding History

SEI Investments’s Portfolio ACIU Stock Details ACIU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-15,884
Closed -$49.9K – 3229
2025
Q4 		$49.9K Hold
15,884
– – ﹤0.01% 3078
2025
Q3 		$45.9K Sell
15,884
-9,013
-36% -$20.4K ﹤0.01% 2787
2025
Q2 		$50.5K Hold
24,897
– – ﹤0.01% 2752
2025
Q1 		$46.6K Buy
+24,897
New +$62.7K ﹤0.01% 2682

Other funds holding ACIU

BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $617B AUM 30.33% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

SEI Investments's ACIU Position: Q1 2026 in Review

SEI Investments sold out of AC Immune (ACIU) in Q1 2026, closing a stake of 15,884 shares — an estimated $49.9K sold.

SEI Investments first reported a position in ACIU in Q1 2025 and held it in 4 quarters. The position peaked at $50.5K in Q2 2025. 46 funds tracked by Wall St. Rank hold ACIU as of Q1 2026.

  • SEI Investments reported no remaining AC Immune position as of Q1 2026 after selling out during the quarter.
  • SEI Investments sold 15,884 AC Immune shares in Q1 2026, an estimated $49.9K.
  • SEI Investments first reported a position in AC Immune in Q1 2025 and held it in 4 quarters.
  • SEI Investments's AC Immune position peaked at $50.5K in Q2 2025.
  • 46 funds tracked by Wall St. Rank held AC Immune as of Q1 2026.

Based on SEI Investments's 13F filing for Q1 2026, filed 13 May 2026.