Perimeter Acquisition Corp I
PMTR
43 hedge funds and large institutions have $222M invested in Perimeter Acquisition Corp I in 2025 Q3 according to their latest regulatory filings, with 19 funds opening new positions, 4 increasing their positions, 7 reducing their positions, and 1 closing their positions.
1,800% more first-time investments, than exits
New positions opened: 19 | Existing positions closed: 1
72% more funds holding
Funds holding: 25 → 43 (+18)
30% more capital invested
Capital invested by funds: $171M → $222M (+$51.2M)
18.32% more ownership
Funds ownership: 69.5% → 87.82% (+18%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
43% less repeat investments, than reductions
Existing positions increased: 4 | Existing positions reduced: 7
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Toronto Dominion Bank
Toronto, Ontario,
Ontario, Canada
|
+$12.3M |
| 2 |
MCM
Moore Capital Management
New York
|
+$12.3M |
| 3 |
GCM
Ghisallo Capital Management
Boston,
Massachusetts
|
+$5.11M |
| 4 |
HI
HBK Investments
Dallas,
Texas
|
+$4.09M |
| 5 |
PMAM
Picton Mahoney Asset Management
Toronto,
Ontario, Canada
|
+$3.32M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LIP
Lighthouse Investment Partners
Palm Beach Gardens,
Florida
|
-$7.63M |
| 2 |
SCM
Shaolin Capital Management
Miami,
Florida
|
-$2.9M |
| 3 |
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Toronto,
Ontario, Canada
|
-$2.55M |
| 4 |
WAM
Weiss Asset Management
Boston,
Massachusetts
|
-$1.46M |
| 5 |
GCL
Glazer Capital LLC
New York
|
-$420K |
PMTR Hedge Fund Activity: Q3 2025 in Review
43 of the 7,631 institutional investors tracked by Wall St. Rank reported a position in Perimeter Acquisition Corp I (PMTR) for Q3 2025, worth a combined $222M — up 30% from $171M a quarter earlier.
Buyers outnumbered sellers: 19 funds opened new PMTR positions and 1 closed out — a net gain of 18 holders — while 4 added to existing stakes and 7 trimmed.
The largest buyer was Toronto Dominion Bank, opening a new position worth an estimated $12.3M. The largest seller was Lighthouse Investment Partners, exiting entirely with an estimated $7.63M sold.
- 43 institutional investors held Perimeter Acquisition Corp I (PMTR) as of Q3 2025, up from 25 in Q2 2025.
- Funds reported $222M of Perimeter Acquisition Corp I stock for Q3 2025, up 30% quarter-over-quarter.
- 19 funds opened new Perimeter Acquisition Corp I positions in Q3 2025 and 1 closed out, a net change of +18 holders.
- The largest Perimeter Acquisition Corp I buyer in Q3 2025 was Toronto Dominion Bank, an estimated $12.3M added.
- The largest Perimeter Acquisition Corp I seller in Q3 2025 was Lighthouse Investment Partners, an estimated $7.63M sold.
Based on aggregated 13F filings for Q3 2025.