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PMTR

Perimeter Acquisition Corp I
PMTR

25 hedge funds and large institutions have $171M invested in Perimeter Acquisition Corp I in 2025 Q2 according to their latest regulatory filings, with 25 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

69.5% more ownership

Funds ownership: 0% → 69.5% (+70%)

Holders
25
Holders Change
+25
Holders Change %
–
% of All Funds
0.33%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.01%
New
25
Increased
–
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
HCI
Harraden Circle Investments
New York
+$19.3M
2
AIMCA
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
+$15.2M
3
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
+$15.2M
4
LA
Linden Advisors
New York
+$15.2M
5
MF
Magnetar Financial
Illinois
+$15.2M

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
HCI
1
Harraden Circle Investments
New York
$19.3M +$19.3M +1,899,998 New
AIMCA
2
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$15.3M +$15.2M +1,500,000 New
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
3
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$15.3M +$15.2M +1,500,000 New
LA
4
Linden Advisors
New York
$15.3M +$15.2M +1,500,000 New
MF
5
Magnetar Financial
Illinois
$15.3M +$15.2M +1,500,000 New
GL
6
Governors Lane
New York
$11.9M +$11.8M +1,167,000 New
SCM
7
Saba Capital Management
New York
$10.8M +$10.7M +1,058,692 New
MC
8
Meteora Capital
Florida
$10.6M +$10.6M +1,045,023 New
FBCM
9
Fort Baker Capital Management
California
$8.14M +$8.12M +800,000 New
LIP
10
Lighthouse Investment Partners
Florida
$7.63M +$7.61M +750,000 New
SCM
11
Shaolin Capital Management
Florida
$6.37M +$6.36M +626,435 New
Two Sigma Investments
12
Two Sigma Investments
New York
$5.46M +$5.45M +537,309 New
D.E. Shaw & Co
13
D.E. Shaw & Co
New York
$5.1M +$5.07M +500,000 New
SC
14
Sculptor Capital
New York
$5.08M +$5.07M +500,000 New
GCL
15
Glazer Capital LLC
New York
$4.23M +$4.22M +416,328 New
WAM
16
Weiss Asset Management
Massachusetts
$2.55M +$2.54M +250,000 New
KPF
17
K2 Principal Fund
Ontario, Canada
$2.51M +$2.51M +247,237 New
PC
18
Periscope Capital
Ontario, Canada
$2.08M +$2.07M +204,400 New
CCM
19
Context Capital Management
California
$2.03M +$2.03M +200,000 New
AC
20
Aristeia Capital
Connecticut
$1.53M +$1.52M +150,000 New
WRBC
21
W.R. Berkley Corp
Connecticut
$1.51M +$1.51M +148,830 New
MSU
22
Mizuho Securities USA
New York
$1.27M +$1.29M +126,934 New
UOC
23
UBS O'Connor
Illinois
$1.02M +$1.01M +100,000 New
CS
24
Clear Street
New York
$573K +$571K +56,306 New
Morgan Stanley
25
Morgan Stanley
New York
$570 +$568 +56 New

PMTR Hedge Fund Activity: Q2 2025 in Review

25 of the 7,607 institutional investors tracked by Wall St. Rank reported a position in Perimeter Acquisition Corp I (PMTR) for Q2 2025, worth a combined $171M.

Buyers outnumbered sellers: 25 funds opened new PMTR positions and 0 closed out — a net gain of 25 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Harraden Circle Investments, opening a new position worth an estimated $19.3M.

  • 25 institutional investors held Perimeter Acquisition Corp I (PMTR) as of Q2 2025, up from 0 in Q1 2025.
  • Funds reported $171M of Perimeter Acquisition Corp I stock for Q2 2025.
  • 25 funds opened new Perimeter Acquisition Corp I positions in Q2 2025 and 0 closed out, a net change of +25 holders.
  • The largest Perimeter Acquisition Corp I buyer in Q2 2025 was Harraden Circle Investments, an estimated $19.3M added.

Based on aggregated 13F filings for Q2 2025.