Perimeter Acquisition Corp. I
PMTRU- 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; 8 institutions reported holding it in 13F filings for Q2 2026, worth $7.51M in total; no superinvestor holds it.
Holders of 5% or more of PMTRU
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Perimeter Acquisition Corp. I, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Harraden Circle Investments, LLC | 13G/A | 7.66%1.90M shares | −1.15 ppfrom 8.81% | May 16, 20252 filings | Aug 14, 2025 | SEC |
| Linden Capital L.P. | 13G | 6.10%1.50M shares | New | May 15, 20251 filing | May 15, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
3 Schedule 13D and 13G filings on Perimeter Acquisition Corp. I, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 20258:30 AM ET | Harraden Circle Investments, LLCand 6 others | 13G/A | 7.66%1.90M shares | −1.15 ppfrom 8.81% | Jun 30, 2025 | SEC |
| May 16, 20257:30 PM ET | Harraden Circle Investments, LLCand 6 others | 13G | 8.81%1.90M shares | New | May 13, 2025 | SEC |
| May 15, 202512:12 PM ET | Linden Capital L.P.and 3 others | 13G | 6.10%1.50M shares | New | May 14, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Perimeter Acquisition Corp. I shares.
No Form 144 notices for Perimeter Acquisition Corp. I are on file.