Perimeter Acquisition Corp. I Class A Ordinary Shares (PMTR)
Special purpose acquisition company
Perimeter Acquisition Corp. I Class A Ordinary Shares (PMTR) is listed on Nasdaq, where it has traded since June 20, 2025.
- Type
- Special purpose acquisition company
- Listed On
- Nasdaq
- Listed Since
- June 20, 2025
- Market Cap
- $323M
About Perimeter Acquisition Corp. I Class A Ordinary Shares
Perimeter Acquisition Corp I is a newly organized blank check company.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 55 institutions reported holding PMTR, with 22.0 million shares worth $228.9 million in aggregate. The largest reported holder was Harraden Circle Investments, with 2.4 million shares worth $25.4 million. Of the 5 largest holders listed below, all 5 held their positions unchanged during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| Harraden Circle Investments | 2,440,298 | $25M | Unchanged |
| Fort Baker Capital Management | 1,573,684 | $16M | Unchanged |
| Alberta Investment Management | 1,500,000 | $16M | Unchanged |
| Magnetar Financial | 1,500,000 | $16M | Unchanged |
| Linden Advisors | 1,500,000 | $16M | Unchanged |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is PMTR?
Perimeter Acquisition Corp. I Class A Ordinary Shares (PMTR) is listed on Nasdaq, where it has traded since June 20, 2025.
Who are the largest institutional holders of PMTR?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of PMTR were Harraden Circle Investments, Fort Baker Capital Management and Alberta Investment Management.
How many institutions own PMTR?
55 institutions reported a position in PMTR for the quarter ended June 30, 2026, worth $228.9 million in total.
Did institutions buy or sell PMTR last quarter?
Of the 5 largest reported holders, all 5 held their positions unchanged during the quarter. Every reported holder and its change is on the SentiSense ownership page for PMTR.
Every reported institutional holder, plus insider and congressional trades in PMTR, on SentiSense.