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Perimeter Acquisition Corp. I

PMTRU
Exchange
Nasdaq
Industry
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SEC CIK
0002061473

No open-market purchases or sales by Perimeter Acquisition Corp. I insiders were filed in the last 90 days; 8 institutions reported holding it in 13F filings for Q2 2026, worth $7.51M in total; no superinvestor holds it.

Other share classesPMTRPMTRW

Key figures

Market capNo recent share count in SEC filings
–
Insider buysOpen market, last 90 days
0
Insider sellsOpen market, last 90 days
0
13F holdersQ2 2026, 0 vs. previous quarter
8
13F valueReported value at the end of Q2 2026
$7.51M
Superinvestors holdingAt the end of Q2 2026
0

Price chart

From SEC filings, in USD.

Revenue, Q2 FY2026
–
No comparable prior period

Short interest

See short data

From FINRA, settlement date Oct 15, 2026.

Short interest
190
Shares sold short
Change
+94
+97.9% vs. previous
Days to cover
1.12
At average daily volume

Superinvestors holding PMTRU, Q2 2026

Go to the superinvestors tab

No superinvestor reported holding PMTRU at the end of Q2 2026.

Latest insider trades

See all insider trades

Open-market purchases and sales by Perimeter Acquisition Corp. I insiders from Form 4, newest first.

No open-market purchases or sales by Perimeter Acquisition Corp. I insiders are on file.

Top 10 13F holders, Q2 2026

See all 8 holders

The largest institutional positions in Perimeter Acquisition Corp. I at the end of Q2 2026; share changes are against Q1 2026.

Institutions holding PMTRU in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
LMR Partners LLP250,000$2.69M0.02%00.0%Unchanged
Millennium Management LLC148,857$1.60M0.00%00.0%Unchanged
Toronto Dominion Bank135,905$1.47M0.00%−5,595−4.0%Reduced
Clear Street Group Inc.69,809$752.5K0.00%+10,203+17.1%Added
JPMorgan Chase & Co50,000$540.0K0.00%00.0%Unchanged
Readystate Asset Management LP26,045$281.3K0.01%00.0%Unchanged
Parallax Volatility Advisers, L.P.15,478$172.3K0.01%00.0%Unchanged
UBS Group AG126$1.36K0.00%+32+34.0%Added

Holders of 5% or more of PMTRU

See all 2 holders and filings

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Perimeter Acquisition Corp. I.

Largest holders of PMTRU from 13D and 13G filings
HolderLatest formStakeChangeFirst filedLatest filingFiling
Harraden Circle Investments, LLC13G/A7.66%1.90M shares−1.15 ppfrom 8.81%May 16, 20252 filingsAug 14, 2025SEC
Linden Capital L.P.13G6.10%1.50M sharesNewMay 15, 20251 filingMay 15, 2025SEC