Aptorum Group
APM
APM was delisted on the 17th of July, 2026.
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.
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
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
+$51.8K |
| 2 |
Citigroup
New York
|
+$5.67K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
-$60.2K |
| 2 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$13.4K |
| 3 |
XT
XTX Topco
George Town,
Cayman Islands
|
-$12K |
| 4 |
Morgan Stanley
New York
|
-$10.6K |
| 5 |
Renaissance Technologies
New York
|
-$9.42K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
1
Jane Street
New York
| $45.7K | +$51.8K | +58,461 | New |
|
|
2
Citadel Advisors
Miami,
Florida
| $19.2K | -$60.2K | -67,928 | -73% |
|
|
3
Citigroup
New York
| $5K | +$5.67K | +6,398 | New |
|
4
Osaic Holdings
Scottsdale,
Arizona
| $4.29K | – | – | – |
|
|
SS
5
SBI Securities
Tokyo,
Japan
| $5 | – | – | – |
|
|
6
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
| – | -$13.4K | -16,777 | Closed |
|
|
XT
7
XTX Topco
George Town,
Cayman Islands
| – | -$12K | -15,061 | Closed |
|
|
8
Morgan Stanley
New York
| – | -$10.6K | -13,262 | Closed |
|
|
9
Renaissance Technologies
New York
| – | -$9.42K | -11,838 | Closed |
|
10
UBS Group
Zurich,
Switzerland
| – | -$1.3K | -1,629 | Closed |
|
APM Hedge Fund Activity: Q2 2026 in Review
5 of the 8,279 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.