Perimeter Solutions
285 hedge funds and large institutions have $3.58B invested in Perimeter Solutions in 2025 Q4 according to their latest regulatory filings, with 77 funds opening new positions, 89 increasing their positions, 85 reducing their positions, and 21 closing their positions.
1,328% more call options, than puts
Call options by funds: $12.3M | Put options by funds: $864K
267% more first-time investments, than exits
New positions opened: 77 | Existing positions closed: 21
26% more capital invested
Capital invested by funds: $2.84B → $3.58B (+$738M)
20% more funds holding
Funds holding: 237 → 285 (+48)
1.2% more ownership
Funds ownership: 86.75% → 87.95% (+1.2%)
5% more repeat investments, than reductions
Existing positions increased: 89 | Existing positions reduced: 85
0% more funds holding in top 10
Funds holding in top 10: 9 → 9 (0)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Janus Henderson Group
London,
|
+$33.1M |
| 2 |
DCM
Driehaus Capital Management
Chicago,
Illinois
|
+$22M |
| 3 |
Invesco
Atlanta,
Georgia
|
+$20M |
| 4 |
Morgan Stanley
New York
|
+$13.9M |
| 5 |
Focus Partners Wealth
Boston,
Massachusetts
|
+$11.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$24.9M |
| 2 |
Millennium Management
New York
|
-$15.4M |
| 3 |
JP Morgan Chase
New York
|
-$15.1M |
| 4 |
BBHC
Brown Brothers Harriman & Co
New York
|
-$12.8M |
| 5 |
Corient Private Wealth
Miami,
Florida
|
-$11M |
PRM Hedge Fund Activity: Q4 2025 in Review
285 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in Perimeter Solutions (PRM) for Q4 2025, worth a combined $3.58B — up 26% from $2.84B a quarter earlier.
Buyers outnumbered sellers: 77 funds opened new PRM positions and 21 closed out — a net gain of 56 holders — while 89 added to existing stakes and 85 trimmed.
The largest buyer was Janus Henderson Group, adding an estimated $33.1M. The largest seller was Fidelity Investments, cutting an estimated $24.9M.
- 285 institutional investors held Perimeter Solutions (PRM) as of Q4 2025, up from 237 in Q3 2025.
- Funds reported $3.58B of Perimeter Solutions stock for Q4 2025, up 26% quarter-over-quarter.
- 77 funds opened new Perimeter Solutions positions in Q4 2025 and 21 closed out, a net change of +56 holders.
- The largest Perimeter Solutions buyer in Q4 2025 was Janus Henderson Group, an estimated $33.1M added.
- The largest Perimeter Solutions seller in Q4 2025 was Fidelity Investments, an estimated $24.9M sold.
Based on aggregated 13F filings for Q4 2025.