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PMTR

Perimeter Acquisition Corp I
PMTR

53 hedge funds and large institutions have $221M invested in Perimeter Acquisition Corp I in 2025 Q4 according to their latest regulatory filings, with 12 funds opening new positions, 9 increasing their positions, 14 reducing their positions, and 2 closing their positions.

New
Increased
Maintained
Reduced
Closed

500% more first-time investments, than exits

New positions opened: 12 | Existing positions closed: 2

100% more funds holding in top 10

Funds holding in top 10: 1 → 2 (+1)

23% more funds holding

Funds holding: 43 → 53 (+10)

0% less capital invested

Capital invested by funds: $222M → $221M (-$1.04M)

1.1% less ownership

Funds ownership: 87.82% → 86.72% (-1.1%)

36% less repeat investments, than reductions

Existing positions increased: 9 | Existing positions reduced: 14

Holders
53
Holders Change
+10
Holders Change %
+23.26%
% of All Funds
0.64%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.02%
New
12
Increased
9
Reduced
14
Closed
2
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
HCI
Harraden Circle Investments
New York
+$4.13M
2
HIM
HGC Investment Management
Ontario, Canada
+$2.46M
3
FLC
Fifth Lane Capital
Texas
+$1.29M
4
RAM
Readystate Asset Management
Illinois
+$969K
5
CC
Centiva Capital
New York
+$908K

Top Sellers

Rank Fund Capital Flow
1
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
-$8.25M
2
MC
Meteora Capital
Florida
-$4.96M
3
Toronto Dominion Bank
Toronto Dominion Bank
Ontario, Canada
-$2.18M
4
SC
Sculptor Capital
New York
-$1.65M
5
SCM
Shaolin Capital Management
Florida
-$1.16M
Name Holding Trade Value Shares
Change 		Change in
Stake
COPPSERS
26
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$2.81M -$280K -27,093 -9%
CCM
27
Context Capital Management
California
$2.57M +$516K +50,000 +25%
HIM
28
HGC Investment Management
Ontario, Canada
$2.45M +$2.46M +238,400 New
SCM
29
Shaolin Capital Management
Florida
$2.37M -$1.16M -112,573 -33%
DAM
30
DLD Asset Management
New York
$2.05M +$2.07K +201 +0.1%
Citigroup
31
Citigroup
New York
$1.87M -$186K -18,054 -9%
AC
32
Aristeia Capital
Connecticut
$1.54M – – –
WRBC
33
W.R. Berkley Corp
Connecticut
$1.53M – – –
SSA
34
Schonfeld Strategic Advisors
New York
$1.46M +$162K +15,682 +12%
FLC
35
Fifth Lane Capital
Texas
$1.28M +$1.29M +125,000 New
JP Morgan Chase
36
JP Morgan Chase
New York
$1.2M +$514K +49,868 +75%
TCM
37
Tenor Capital Management
New York
$1.03M – – –
Goldman Sachs
38
Goldman Sachs
New York
$1.01M – – –
MSU
39
Mizuho Securities USA
New York
$1.01M -$238K -23,065 -19%
WC
40
Wealthspring Capital
New York
$1.01M – – –
RAM
41
Readystate Asset Management
Illinois
$966K +$969K +93,925 New
AGM
42
Alpine Global Management
New York
$864K +$867K +84,057 New
HCM
43
Heights Capital Management
California
$606K – – –
CS
44
Clear Street
New York
$546K -$27.9K -2,700 -5%
CL
45
CSS LLC
Illinois
$514K – – –
Walleye Capital
46
Walleye Capital
New York
$359K +$360K +34,882 New
SP
47
SIH Partners
Delaware
$350K +$352K +34,078 New
FIA
48
FNY Investment Advisers
New York
$155K +$156K +15,110 New
MG
49
Marex Group
$142K +$142K +13,800 New
BCM
50
BlueCrest Capital Management
Jersey
$103K +$103K +10,000 New
1
2
3

PMTR Hedge Fund Activity: Q4 2025 in Review

53 of the 8,256 institutional investors tracked by Wall St. Rank reported a position in Perimeter Acquisition Corp I (PMTR) for Q4 2025, worth a combined $221M — down 0.47% from $222M a quarter earlier.

Buyers outnumbered sellers: 12 funds opened new PMTR positions and 2 closed out — a net gain of 10 holders — while 9 added to existing stakes and 14 trimmed.

The largest buyer was Harraden Circle Investments, adding an estimated $4.13M. The largest seller was Healthcare of Ontario Pension Plan (HOOPP) Trust Fund, cutting an estimated $8.25M.

  • 53 institutional investors held Perimeter Acquisition Corp I (PMTR) as of Q4 2025, up from 43 in Q3 2025.
  • Funds reported $221M of Perimeter Acquisition Corp I stock for Q4 2025, down 0.47% quarter-over-quarter.
  • 12 funds opened new Perimeter Acquisition Corp I positions in Q4 2025 and 2 closed out, a net change of +10 holders.
  • The largest Perimeter Acquisition Corp I buyer in Q4 2025 was Harraden Circle Investments, an estimated $4.13M added.
  • The largest Perimeter Acquisition Corp I seller in Q4 2025 was Healthcare of Ontario Pension Plan (HOOPP) Trust Fund, an estimated $8.25M sold.

Based on aggregated 13F filings for Q4 2025.