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APM

Aptorum Group
APM

Delisted

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

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7 hedge funds and large institutions have $164K invested in Aptorum Group in 2025 Q4 according to their latest regulatory filings, with 5 funds opening new positions, 0 increasing their positions, 0 reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

1,335% more capital invested

Capital invested by funds: $11.4K → $164K (+$152K)

400% more first-time investments, than exits

New positions opened: 5 | Existing positions closed: 1

133% more funds holding

Funds holding: 3 → 7 (+4)

2.33% more ownership

Funds ownership: 0.11% → 2.43% (+2.3%)

Holders
7
Holders Change
+4
Holders Change %
+133.33%
% of All Funds
0.08%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
5
Increased
–
Reduced
–
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
+$170K
2
Two Sigma Investments
Two Sigma Investments
New York
+$25.6K
3
Morgan Stanley
Morgan Stanley
New York
+$19.5K
4
UBS Group
UBS Group
Switzerland
+$3.3K
5
BNP Paribas Financial Markets
BNP Paribas Financial Markets
France
+$587

Top Sellers

Rank Fund Capital Flow
1
Citigroup
Citigroup
New York
-$560

APM Hedge Fund Activity: Q4 2025 in Review

7 of the 8,270 institutional investors tracked by Wall St. Rank reported a position in Aptorum Group (APM) for Q4 2025, worth a combined $164K — up 1,335% from $11.4K a quarter earlier.

Buyers outnumbered sellers: 5 funds opened new APM positions and 1 closed out — a net gain of 4 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Citadel Advisors, opening a new position worth an estimated $170K. The largest seller was Citigroup, exiting entirely with an estimated $560 sold.

  • 7 institutional investors held Aptorum Group (APM) as of Q4 2025, up from 3 in Q3 2025.
  • Funds reported $164K of Aptorum Group stock for Q4 2025, up 1,335% quarter-over-quarter.
  • 5 funds opened new Aptorum Group positions in Q4 2025 and 1 closed out, a net change of +4 holders.
  • The largest Aptorum Group buyer in Q4 2025 was Citadel Advisors, an estimated $170K added.
  • The largest Aptorum Group seller in Q4 2025 was Citigroup, an estimated $560 sold.

Based on aggregated 13F filings for Q4 2025.