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AC Immune
ACIU

Fund managers haven’t disclosed any holdings of ACIU yet.

ACIU Hedge Fund Activity: Q1 2026 in Review

46 of the 8,128 institutional investors tracked by Wall St. Rank reported a position in AC Immune (ACIU) for Q1 2026, worth a combined $69M — down 15% from $80.9M a quarter earlier.

Buyers outnumbered sellers: 9 funds opened new ACIU positions and 4 closed out — a net gain of 5 holders — while 13 added to existing stakes and 16 trimmed.

The largest buyer was Citadel Advisors, adding an estimated $609K. The largest seller was Point72 Asset Management, exiting entirely with an estimated $1.2M sold.

  • 46 institutional investors held AC Immune (ACIU) as of Q1 2026, up from 41 in Q4 2025.
  • Funds reported $69M of AC Immune stock for Q1 2026, down 15% quarter-over-quarter.
  • 9 funds opened new AC Immune positions in Q1 2026 and 4 closed out, a net change of +5 holders.
  • The largest AC Immune buyer in Q1 2026 was Citadel Advisors, an estimated $609K added.
  • The largest AC Immune seller in Q1 2026 was Point72 Asset Management, an estimated $1.2M sold.

Based on aggregated 13F filings for Q1 2026.