Allurion Technologies
ALUR
ALUR was delisted on the 6th of March, 2026.
24 hedge funds and large institutions have $4.44M invested in Allurion Technologies in 2025 Q1 according to their latest regulatory filings, with 9 funds opening new positions, 9 increasing their positions, 2 reducing their positions, and 10 closing their positions.
350% more repeat investments, than reductions
Existing positions increased: 9 | Existing positions reduced: 2
22.49% more ownership
Funds ownership: 0.9% → 23.39% (+22%)
4% less funds holding
Funds holding: 25 → 24 (-1)
10% less first-time investments, than exits
New positions opened: 9 | Existing positions closed: 10
29% less capital invested
Capital invested by funds: $6.3M → $4.44M (-$1.86M)
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RI
RTW Investments
New York
|
+$4.01M |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$335K |
| 3 |
HF
HRT Financial
New York
|
+$184K |
| 4 |
SM
Sabby Management
Miami Beach,
Florida
|
+$120K |
| 5 |
Geode Capital Management
Boston,
Massachusetts
|
+$90.6K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AC
Armistice Capital
New York
|
-$3.24M |
| 2 |
Jane Street
New York
|
-$97.2K |
| 3 |
State Street
Boston,
Massachusetts
|
-$51.8K |
| 4 |
Northern Trust
Chicago,
Illinois
|
-$32.9K |
| 5 |
BCM
Bridgeway Capital Management
Houston,
Texas
|
-$32.3K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
26
Jane Street
New York
| – | -$97.2K | -9,045 | Closed |
|
|
27
State Street
Boston,
Massachusetts
| – | -$51.8K | -4,821 | Closed |
|
|
28
Northern Trust
Chicago,
Illinois
| – | -$32.9K | -3,059 | Closed |
|
|
BCM
29
Bridgeway Capital Management
Houston,
Texas
| – | -$32.3K | -3,000 | Closed |
|
30
Focus Partners Wealth
Boston,
Massachusetts
| – | -$15.1K | -1,402 | Closed |
|
31
Bank of Montreal
Toronto,
Ontario, Canada
| – | -$13.8K | -1,280 | Closed |
|
32
Simplex Trading
Chicago,
Illinois
| – | -$8K | -779 | Closed |
|
|
YU
33
Yale University
New Haven,
Connecticut
| – | -$5.27K | -490 | Closed |
|
34
Royal Bank of Canada
Toronto,
Ontario, Canada
| – | -$2K | -178 | Closed |
|
ALUR Hedge Fund Activity: Q1 2025 in Review
24 of the 7,459 institutional investors tracked by Wall St. Rank reported a position in Allurion Technologies (ALUR) for Q1 2025, worth a combined $4.44M — down 29% from $6.3M a quarter earlier.
Sellers outnumbered buyers: 10 funds closed out of ALUR and 9 opened new positions — a net loss of 1 holder — while 2 trimmed existing stakes and 9 added.
The largest buyer was RTW Investments, adding an estimated $4.01M. The largest seller was Armistice Capital, exiting entirely with an estimated $3.24M sold.
- 24 institutional investors held Allurion Technologies (ALUR) as of Q1 2025, down from 25 in Q4 2024.
- Funds reported $4.44M of Allurion Technologies stock for Q1 2025, down 29% quarter-over-quarter.
- 9 funds opened new Allurion Technologies positions in Q1 2025 and 10 closed out, a net change of -1 holder.
- The largest Allurion Technologies buyer in Q1 2025 was RTW Investments, an estimated $4.01M added.
- The largest Allurion Technologies seller in Q1 2025 was Armistice Capital, an estimated $3.24M sold.
Based on aggregated 13F filings for Q1 2025.