PERIMETER ACQUISITION CORP I (PMTRW)
Institutional ownership reported to the SEC as of Q2 2026, across 5 quarters.
39
Reporting holders
$9.8M
Reported value
2.7%
Calls
0.0%
Puts
+3
Holder change
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Harraden Circle Investments, LLC | $1.0M | 1,161,751 | 0.13% | 5q | HELD |
| Linden Advisors LP | $786.2K | 850,000 | 0.00% | 5q | HELD |
| Magnetar Financial LLC | $712.4K | 750,000 | 0.01% | 5q | HELD |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $712.4K | 750,000 | 0.00% | 5q | HELD |
| Alberta Investment Management Corp | $675.0K | 750,000 | 0.00% | 5q | HELD |
| TORONTO DOMINION BANK | $553.5K | 615,000 | 0.00% | 5q | -31.3%-$251.9K |
| MOORE CAPITAL MANAGEMENT, LP | $540.0K | 600,000 | 0.01% | 4q | HELD |
| Lineage Point Capital LP | $516.2K | 573,611 | 0.11% | 3q | +54.0%+$181.1K |
| Saba Capital Management, L.P. | $512.4K | 554,045 | 0.01% | 5q | HELD |
| Walleye Capital LLC | $438.2K | 486,889 | 0.00% | 5q | +20.3%+$73.9K |
| HBK INVESTMENTS L P | $360.0K | 400,000 | 0.00% | 4q | +100.0%+$180.0K |
| Governors Lane LP | $336.3K | 373,679 | 0.03% | 5q | -1.0%-$3.5K |
| Fort Baker Capital Management LP | $239.5K | 266,149 | 0.02% | 5q | HELD |
| D. E. Shaw & Co., Inc. | $237.4K | 250,000 | 0.00% | 5q | HELD |
| Shaolin Capital Management LLC | $233.3K | 259,231 | 0.01% | 5q | -11.4%-$30.0K |
| MILLENNIUM MANAGEMENT LLC | $217.4K | options only | 0.00% | 5q | OPTIONS |
| Centiva Capital, LP | $190.1K | 200,197 | 0.00% | new | NEW |
| HGC Investment Management Inc. | $174.8K | 194,200 | 0.03% | 3q | HELD |
| PICTON MAHONEY ASSET MANAGEMENT | $154.3K | 162,500 | 0.00% | 4q | HELD |
| Periscope Capital Inc. | $148.6K | 165,100 | 0.01% | 5q | HELD |
| AQR Arbitrage LLC | $121.1K | 148,557 | 0.00% | 4q | +0.9%+$1.1K |
| DLD Asset Management, LP | $119.5K | 132,764 | 0.01% | 4q | HELD |
| BOOTHBAY FUND MANAGEMENT, LLC | $117.5K | 11,276? | 0.00% | 2q | |
| K2 PRINCIPAL FUND, L.P. | $105.1K | 116,818 | 0.01% | 5q | HELD |
| Hudson Bay Capital Management LP | $95.0K | 100,000 | 0.00% | 4q | HELD |
| Context Capital Management, LLC | $90.0K | 100,000 | 0.00% | 5q | HELD |
| Westchester Capital Management, LLC | $71.2K | 74,998 | 0.00% | 2q | HELD |
| ARISTEIA CAPITAL, L.L.C. | $69.4K | 75,000 | 0.00% | 5q | HELD |
| Meteora Capital, LLC | $54.0K | 60,000 | 0.00% | 5q | -17.9%-$11.8K |
| Radcliffe Capital Management, L.P. | $52.1K | 56,300 | 0.00% | 4q | HELD |
| CITIGROUP INC | $47.5K | options only | 0.00% | 4q | OPTIONS |
| TENOR CAPITAL MANAGEMENT Co., L.P. | $45.0K | 50,000 | 0.00% | 4q | HELD |
| BNP PARIBAS FINANCIAL MARKETS | $44.2K | 49,152 | 0.00% | 4q | HELD |
| Wealthspring Capital LLC | $42.3K | 46,950 | 0.01% | 4q | HELD |
| Schonfeld Strategic Advisors LLC | $36.0K | 40,000 | 0.00% | 4q | -26.2%-$12.8K |
| HEIGHTS CAPITAL MANAGEMENT, INC | $28.0K | 29,462 | 0.01% | 4q | HELD |
| Alpine Global Management, LLC | $17.0K | 18,842 | 0.00% | new | NEW |
| Parallax Volatility Advisers, L.P. | $13.6K | 14,300 | 0.00% | 5q | HELD |
| Arax Advisory Partners | $1.2K | 1,300 | 0.00% | new | NEW |
| UBS Group AG | $1.1K | 1,235 | 0.00% | new | NEW |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 39 | $9.8M | 10,478,030 | 4 | 4 | 5 | 2.7% |
| Q1 2026 | 36 | $7.1M | 10,416,538 | 1 | 2 | 9 | 2.7% |
| Q4 2025 | 37 | $7.7M | 10,477,829 | 1 | 3 | 7 | 1.7% |
| Q3 2025 | 40 | $6.5M | 10,065,328 | 17 | 5 | 3 | 6.0% |
| Q2 2025 | 24 | $5.5M | 8,149,666 | 24 | 0 | 0 | 3.5% |