PERIMETER ACQUISITION CORP I (PMTR)
Institutional ownership reported to the SEC as of Q2 2026, across 5 quarters.
53
Reporting holders
$227.8M
Reported value
0.0%
Held as options
+4
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Harraden Circle Investments, LLC | $25.4M | 2,440,298 | 3.24% | 5q | HELD |
| Fort Baker Capital Management LP | $16.4M | 1,573,684 | 1.20% | 5q | HELD |
| Linden Advisors LP | $15.6M | 1,500,000 | 0.08% | 5q | HELD |
| Magnetar Financial LLC | $15.6M | 1,500,000 | 0.14% | 5q | HELD |
| Alberta Investment Management Corp | $15.6M | 1,500,000 | 0.09% | 5q | HELD |
| MOORE CAPITAL MANAGEMENT, LP | $12.5M | 1,200,000 | 0.19% | 4q | HELD |
| Governors Lane LP | $11.6M | 1,116,900 | 0.97% | 5q | HELD |
| Meteora Capital, LLC | $9.4M | 905,419 | 0.78% | 5q | +29.7%+$2.2M |
| Lineage Point Capital LP | $7.3M | 700,000 | 1.50% | 3q | -4.5%-$347.7K |
| Saba Capital Management, L.P. | $6.8M | 649,940 | 0.17% | 5q | -19.2%-$1.6M |
| TORONTO DOMINION BANK | $6.3M | 600,100 | 0.01% | 4q | -34.0%-$3.2M |
| TWO SIGMA INVESTMENTS, LP | $5.6M | 537,309 | 0.00% | 5q | HELD |
| Radcliffe Capital Management, L.P. | $5.4M | 521,525 | 0.41% | 4q | +54.1%+$1.9M |
| Sculptor Capital LP | $5.2M | 500,000 | 0.04% | 5q | HELD |
| D. E. Shaw & Co., Inc. | $5.2M | 500,000 | 0.00% | 5q | HELD |
| Ghisallo Capital Management LLC | $5.2M | 500,000 | 0.10% | 4q | HELD |
| Centiva Capital, LP | $4.3M | 409,442 | 0.04% | 4q | +21.1%+$743.7K |
| HBK INVESTMENTS L P | $3.8M | 360,000 | 0.04% | 4q | HELD |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $3.6M | 350,000 | 0.01% | 5q | HELD |
| Periscope Capital Inc. | $3.4M | 327,836 | 0.30% | 5q | +1.5%+$49.3K |
| PICTON MAHONEY ASSET MANAGEMENT | $3.4M | 325,000 | 0.03% | 4q | HELD |
| Verition Fund Management LLC | $3.3M | 318,008 | 0.01% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $3.3M | 314,650 | 0.00% | 4q | HELD |
| K2 PRINCIPAL FUND, L.P. | $3.1M | 297,237 | 0.23% | 5q | HELD |
| AQR Arbitrage LLC | $3.0M | 285,795 | 0.04% | 4q | +0.9%+$27.9K |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $2.6M | 252,751 | 0.01% | 4q | HELD |
| Context Capital Management, LLC | $2.6M | 250,000 | 0.05% | 5q | HELD |
| Shaolin Capital Management LLC | $2.3M | 224,991 | 0.11% | 5q | -10.1%-$263.3K |
| DLD Asset Management, LP | $2.1M | 199,351 | 0.14% | 4q | HELD |
| Schonfeld Strategic Advisors LLC | $1.7M | 160,385 | 0.01% | 4q | +14.6%+$212.4K |
| CITIGROUP INC | $1.7M | 160,000 | 0.00% | 4q | -12.1%-$228.5K |
| ARISTEIA CAPITAL, L.L.C. | $1.6M | 150,000 | 0.02% | 5q | HELD |
| Westchester Capital Management, LLC | $1.6M | 150,000 | 0.08% | 2q | HELD |
| BERKLEY W R CORP | $1.5M | 148,830 | 0.07% | 5q | HELD |
| READYSTATE ASSET MANAGEMENT LP | $1.5M | 139,414 | 0.05% | 3q | +2.1%+$30.1K |
| BOOTHBAY FUND MANAGEMENT, LLC | $1.1M | 105,347 | 0.01% | new | NEW |
| TENOR CAPITAL MANAGEMENT Co., L.P. | $1.0M | 100,000 | 0.01% | 4q | HELD |
| GOLDMAN SACHS GROUP INC | $1.0M | 98,304 | 0.00% | 4q | HELD |
| SONA ASSET MANAGEMENT (US) LLC | $864.8K | 82,991 | 0.02% | 2q | HELD |
| StoneX Group Inc. | $821.8K | 79,594 | 0.03% | 2q | +61.4%+$312.6K |
| JPMORGAN CHASE & CO | $796.3K | 76,566 | 0.00% | 4q | -41.1%-$555.6K |
| HEIGHTS CAPITAL MANAGEMENT, INC | $613.4K | 58,925 | 0.14% | 4q | HELD |
| Shay Capital LLC | $518.4K | 49,800 | 0.03% | new | NEW |
| Walleye Capital LLC | $363.1K | 34,882 | 0.00% | 3q | HELD |
| Parallax Volatility Advisers, L.P. | $260.2K | 25,000 | 0.00% | new | NEW |
| SIH Partners, LLLP | $239.7K | 23,028 | 0.00% | 3q | -15.2%-$42.9K |
| CSS LLC/IL | $206.2K | 19,791 | 0.01% | 4q | -59.0%-$296.4K |
| Clear Street Group Inc. | $201.5K | 19,341 | 0.00% | 4q | -19.2%-$47.9K |
| CITADEL ADVISORS LLC | $143.6K | 13,792 | 0.00% | 2q | +26.1%+$29.7K |
| BNP PARIBAS FINANCIAL MARKETS | $117.8K | 11,320 | 0.00% | 2q | HELD |
| Rangeley Capital, LLC | $26.1K | 2,502 | 0.02% | new | NEW |
| GLAZER CAPITAL, LLC | $4.0K | 379,931 | 0.10% | 5q | HELD |
| UBS Group AG | $1.8K | 177 | 0.00% | 2q | -70.5%-$4.4K |
| MORGAN STANLEY | $490 | 47 | 0.00% | 5q | -31.9% |
| FNY Investment Advisers, LLC | $157 | 15,110 | 0.06% | 3q | HELD |
| Virtu Financial LLC | $151 | 14,485 | 0.00% | 2q | -63.2% |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | Harraden Circle Investments, LLC SPACwith 1 co-filers | 9.8% |
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 | 53 | $227.8M | 21,870,272 | 5 | 9 | 11 | 0.0% |
| Q1 2026 | 49 | $220.4M | 21,488,059 | 6 | 8 | 11 | 0.0% |
| Q4 2025 | 51 | $217.2M | 21,130,052 | 10 | 7 | 13 | 0.0% |
| Q3 2025 | 41 | $215.6M | 21,135,769 | 18 | 4 | 4 | 0.0% |
| Q2 2025 | 24 | $166.6M | 16,368,220 | 23 | 0 | 0 | 0.0% |