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PMTR

Perimeter Acquisition Corp I

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
–

PMTR Hedge Fund Activity: Q4 2025 in Review

53 of the 8,282 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.