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Perimeter Acquisition Corp. I

PMTR
Exchange
Nasdaq
Industry
Blank Checks
SEC CIK
0002061473

No open-market purchases or sales by Perimeter Acquisition Corp. I insiders were filed in the last 90 days; 56 institutions reported holding it in 13F filings for Q2 2026, worth $230.4M in total; no superinvestor holds it.

Other share classesPMTRUPMTRW

Q2 2025 vs. Q1 2025

How the institutions holding Perimeter Acquisition Corp. I changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of PMTR: Q1 2025 compared with Q2 2025
MeasureQ1 2025Q2 2025Change
Holders025+25
Shares016.8M+16.8M
Value$0$170.9M+$170.9M

New holders (25)

Institutions that held Perimeter Acquisition Corp. I at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to PMTR in Q2 2025
InstitutionSharesValue% of portfolio
Harraden Circle Investments, LLC1,899,998$19.3M5.00%
Linden Advisors LP1,500,000$15.3M0.09%
Alberta Investment Management Corp1,500,000$15.3M0.12%
Healthcare of Ontario Pension Plan Trust Fund1,500,000$15.3M0.03%
Magnetar Financial LLC1,500,000$15.3M0.07%
Governors Lane LP1,167,000$11.9M1.62%
Saba Capital Management, L.P.1,058,692$10.8M0.29%
Meteora Capital, LLC1,045,023$10.6M1.98%
Fort Baker Capital Management LP800,000$8.14M1.42%
Lighthouse Investment Partners, LLC750,000$7.63M0.33%
Shaolin Capital Management LLC626,435$6.37M0.28%
Two Sigma Investments, LP537,309$5.46M0.01%
D. E. Shaw & Co., Inc.500,000$5.10M0.01%
Sculptor Capital LP500,000$5.08M0.08%
Glazer Capital, LLC416,328$4.23M0.15%
Weiss Asset Management LP250,000$2.55M0.04%
K2 Principal Fund, L.P.247,237$2.51M0.46%
Periscope Capital Inc.204,400$2.08M0.79%
Context Capital Management, LLC200,000$2.03M0.07%
Aristeia Capital LLC150,000$1.53M0.04%
Berkley W R Corp148,830$1.51M0.09%
Mizuho Securities USA LLC126,934$1.27M0.03%
UBS Oconnor LLC100,000$1.02M0.03%
Clear Street LLC56,306$572.6K0.00%
Morgan Stanley56$5700.00%

Sold out (0)

Institutions that held Perimeter Acquisition Corp. I at the end of Q1 2025 and filed for Q2 2025 without it.

None.