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APM

Aptorum Group
APM

Delisted

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

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8 hedge funds and large institutions have $125K invested in Aptorum Group in 2026 Q1 according to their latest regulatory filings, with 3 funds opening new positions, increasing their positions, 4 reducing their positions, and 2 closing their positions.

New
Increased
Maintained
Reduced
Closed

50% more first-time investments, than exits

New positions opened: 3 | Existing positions closed: 2

14% more funds holding

Funds holding: 7 → 8 (+1)

0.03% more ownership

Funds ownership: 2.43% → 2.47% (+0.03%)

24% less capital invested

Capital invested by funds: $164K → $125K (-$39.1K)

100% less repeat investments, than reductions

Existing positions increased: 0 | Existing positions reduced: 4

Holders
8
Holders Change
+1
Holders Change %
+14.29%
% of All Funds
0.1%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
3
Increased
–
Reduced
4
Closed
2
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$15.1K
2
XT
XTX Topco
Cayman Islands
+$13.6K
3
Renaissance Technologies
Renaissance Technologies
New York
+$10.7K

Top Sellers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
-$20.9K
2
Two Sigma Investments
Two Sigma Investments
New York
-$18.5K
3
UBS Group
UBS Group
Switzerland
-$557
4
BNP Paribas Financial Markets
BNP Paribas Financial Markets
France
-$424
5
Morgan Stanley
Morgan Stanley
New York
-$34

APM Hedge Fund Activity: Q1 2026 in Review

8 of the 8,191 institutional investors tracked by Wall St. Rank reported a position in Aptorum Group (APM) for Q1 2026, worth a combined $125K — down 24% from $164K a quarter earlier.

Buyers outnumbered sellers: 3 funds opened new APM positions and 2 closed out — a net gain of 1 holder — while 0 added to existing stakes and 4 trimmed.

The largest buyer was Susquehanna International Group, opening a new position worth an estimated $15.1K. The largest seller was Citadel Advisors, cutting an estimated $20.9K.

  • 8 institutional investors held Aptorum Group (APM) as of Q1 2026, up from 7 in Q4 2025.
  • Funds reported $125K of Aptorum Group stock for Q1 2026, down 24% quarter-over-quarter.
  • 3 funds opened new Aptorum Group positions in Q1 2026 and 2 closed out, a net change of +1 holder.
  • The largest Aptorum Group buyer in Q1 2026 was Susquehanna International Group, an estimated $15.1K added.
  • The largest Aptorum Group seller in Q1 2026 was Citadel Advisors, an estimated $20.9K sold.

Based on aggregated 13F filings for Q1 2026.