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APM

Aptorum Group
APM

Delisted

APM was delisted on the 17th of July, 2026.

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5 hedge funds and large institutions have $74.2K invested in Aptorum Group in 2026 Q2 according to their latest regulatory filings, with 2 funds opening new positions, increasing their positions, 1 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed

0.97% less ownership

Funds ownership: 2.47% → 1.49% (-0.97%)

38% less funds holding

Funds holding: 8 → 5 (-3)

40% less capital invested

Capital invested by funds: $125K → $74.2K (-$50.4K)

60% less first-time investments, than exits

New positions opened: 2 | Existing positions closed: 5

100% less repeat investments, than reductions

Existing positions increased: 0 | Existing positions reduced: 1

Holders
5
Holders Change
-3
Holders Change %
-37.5%
% of All Funds
0.06%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
2
Increased
–
Reduced
1
Closed
5
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Jane Street
Jane Street
New York
+$51.8K
2
Citigroup
Citigroup
New York
+$5.67K

Top Sellers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
-$60.2K
2
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$13.4K
3
XT
XTX Topco
Cayman Islands
-$12K
4
Morgan Stanley
Morgan Stanley
New York
-$10.6K
5
Renaissance Technologies
Renaissance Technologies
New York
-$9.42K

APM Hedge Fund Activity: Q2 2026 in Review

5 of the 8,318 institutional investors tracked by Wall St. Rank reported a position in Aptorum Group (APM) for Q2 2026, worth a combined $74.2K — down 40% from $125K a quarter earlier.

Sellers outnumbered buyers: 5 funds closed out of APM and 2 opened new positions — a net loss of 3 holders — while 1 trimmed existing stakes and 0 added.

The largest buyer was Jane Street, opening a new position worth an estimated $51.8K. The largest seller was Citadel Advisors, cutting an estimated $60.2K.

  • 5 institutional investors held Aptorum Group (APM) as of Q2 2026, down from 8 in Q1 2026.
  • Funds reported $74.2K of Aptorum Group stock for Q2 2026, down 40% quarter-over-quarter.
  • 2 funds opened new Aptorum Group positions in Q2 2026 and 5 closed out, a net change of -3 holders.
  • The largest Aptorum Group buyer in Q2 2026 was Jane Street, an estimated $51.8K added.
  • The largest Aptorum Group seller in Q2 2026 was Citadel Advisors, an estimated $60.2K sold.

Based on aggregated 13F filings for Q2 2026.