XTX Topco’s AC Immune ACIU Stock Holding History

XTX Topco’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	$39.3K	Buy	+14,304	New	+$44.4K	﹤0.01%	3389
2024 Q2	–	Sell	-11,644	Closed	-$34.5K	–	1795
2024 Q1	$34.5K	Buy	+11,644	New	+$41.7K	﹤0.01%	1533

Other funds holding ACIU

BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return

Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

XTX Topco's ACIU Position: Q1 2026 in Review

XTX Topco opened a new position in AC Immune (ACIU) in Q1 2026: 14,304 shares worth $39.3K. The stake represents ﹤0.01% of the portfolio and ranks #3389 among its holdings. This is a return to the name: XTX Topco previously reported a position in ACIU as recently as Q1 2024.

XTX Topco first reported a position in ACIU in Q1 2024 and has held it in 2 quarters since. 46 funds tracked by Wall St. Rank hold ACIU as of Q1 2026.

XTX Topco held 14,304 shares of AC Immune worth $39.3K as of Q1 2026.
AC Immune was a new XTX Topco position in Q1 2026.
AC Immune made up ﹤0.01% of XTX Topco's portfolio in Q1 2026, its #3389 holding.
XTX Topco first reported a position in AC Immune in Q1 2024 and has held it in 2 quarters since.
46 funds tracked by Wall St. Rank held AC Immune as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.