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APM

Aptorum Group
APM

Delisted

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

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11 hedge funds and large institutions have $1.09M invested in Aptorum Group in 2021 Q4 according to their latest regulatory filings, with 4 funds opening new positions, 5 increasing their positions, 1 reducing their positions, and 2 closing their positions.

New
Increased
Maintained
Reduced
Closed

400% more repeat investments, than reductions

Existing positions increased: 5 | Existing positions reduced: 1

100% more first-time investments, than exits

New positions opened: 4 | Existing positions closed: 2

22% more funds holding

Funds holding: 9 → 11 (+2)

0.15% more ownership

Funds ownership: 0.4% → 0.55% (+0.15%)

19% less capital invested

Capital invested by funds: $1.35M → $1.09M (-$259K)

Holders
11
Holders Change
+2
Holders Change %
+22.22%
% of All Funds
0.17%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
4
Increased
5
Reduced
1
Closed
2
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Renaissance Technologies
Renaissance Technologies
New York
+$144K
2
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$109K
3
Citadel Advisors
Citadel Advisors
Florida
+$86.7K
4
Morgan Stanley
Morgan Stanley
New York
+$43.3K
5
VF
Virtu Financial
New York
+$30.4K

Top Sellers

Rank Fund Capital Flow
1
UBS Group
UBS Group
Switzerland
-$4K
2
SSA
Schonfeld Strategic Advisors
New York
-$214

APM Hedge Fund Activity: Q4 2021 in Review

11 of the 6,518 institutional investors tracked by Wall St. Rank reported a position in Aptorum Group (APM) for Q4 2021, worth a combined $1.09M — down 19% from $1.35M a quarter earlier.

Buyers outnumbered sellers: 4 funds opened new APM positions and 2 closed out — a net gain of 2 holders — while 5 added to existing stakes and 1 trimmed.

The largest buyer was Renaissance Technologies, adding an estimated $144K. The largest seller was UBS Group, exiting entirely with an estimated $4K sold.

  • 11 institutional investors held Aptorum Group (APM) as of Q4 2021, up from 9 in Q3 2021.
  • Funds reported $1.09M of Aptorum Group stock for Q4 2021, down 19% quarter-over-quarter.
  • 4 funds opened new Aptorum Group positions in Q4 2021 and 2 closed out, a net change of +2 holders.
  • The largest Aptorum Group buyer in Q4 2021 was Renaissance Technologies, an estimated $144K added.
  • The largest Aptorum Group seller in Q4 2021 was UBS Group, an estimated $4K sold.

Based on aggregated 13F filings for Q4 2021.