Aptorum Group
APM
APM was delisted on the 17th of July, 2026.
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, 3 reducing their positions, and 2 closing their positions.
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% more ownership
Funds ownership: 0.24% → 0.25% (+0%)
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: 3
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$15.1K |
| 2 |
XT
XTX Topco
George Town,
Cayman Islands
|
+$13.6K |
| 3 |
Renaissance Technologies
New York
|
+$10.7K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
-$20.9K |
| 2 |
Two Sigma Investments
New York
|
-$18.5K |
| 3 |
UBS Group
Zurich,
Switzerland
|
-$558 |
| 4 |
BNP Paribas Financial Markets
Paris,
France
|
-$424 |
| 5 |
Morgan Stanley
New York
|
-$36 |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
1
Citadel Advisors
Miami,
Florida
| $73.6K | -$20.9K | -2,316 | -20% |
|
|
2
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
| $13.4K | +$15.1K | +1,678 | New |
|
|
XT
3
XTX Topco
George Town,
Cayman Islands
| $12K | +$13.6K | +1,506 | New |
|
|
4
Morgan Stanley
New York
| $10.6K | -$36 | -4 | -0.3% |
|
|
5
Renaissance Technologies
New York
| $9.42K | +$10.7K | +1,184 | New |
|
6
Osaic Holdings
Scottsdale,
Arizona
| $4.4K | – | – | – |
|
|
7
UBS Group
Zurich,
Switzerland
| $1.3K | -$558 | -62 | -28% |
|
|
SS
8
SBI Securities
Tokyo,
Japan
| $6 | – | – | – |
|
|
9
Two Sigma Investments
New York
| – | -$18.5K | -1,741 | Closed |
|
|
10
BNP Paribas Financial Markets
Paris,
France
| – | -$424 | -40 | Closed |
|
APM Hedge Fund Activity: Q1 2026 in Review
8 of the 8,128 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 3 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.