Who Owns PERIMETER ACQUISITION CORP I (PMTR)? -- Institutional Holders (2026-03-31)
60 institutions reported holding $224.8M of PERIMETER ACQUISITION CORP I (PMTR) in SEC 13F filings for 2026-03-31. Largest institutional holders: Harraden Circle Investments, LLC ($25.0M), Fort Baker Capital Management LP ($16.1M), Alberta Investment Management Corp ($15.4M), Linden Advisors LP ($15.4M), Magnetar Financial LLC ($15.4M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | Harraden Circle Investments, LLC | $25.0M | 2.4M | Added |
| 2 | Fort Baker Capital Management LP | $16.1M | 1.6M | Added |
| 3 | Alberta Investment Management Corp | $15.4M | 1.5M | Hold |
| 4 | Linden Advisors LP | $15.4M | 1.5M | Hold |
| 5 | Magnetar Financial LLC | $15.4M | 1.5M | Hold |
| 6 | MOORE CAPITAL MANAGEMENT, LP | $12.3M | 1.2M | Hold |
| 7 | Governors Lane LP | $11.5M | 1.1M | Hold |
| 8 | TORONTO DOMINION BANK | $9.3M | 909,456 | Trimmed |
| 9 | Saba Capital Management, L.P. | $8.3M | 804,878 | Trimmed |
| 10 | Lineage Point Capital LP | $7.5M | 733,364 | Added |
| 11 | METEORA CAPITAL, LLC | $7.2M | 698,202 | Trimmed |
| 12 | TWO SIGMA INVESTMENTS, LP | $5.5M | 537,309 | Hold |
| 13 | Sculptor Capital LP | $5.1M | 500,000 | Hold |
| 14 | Ghisallo Capital Management LLC | $5.1M | 500,000 | Hold |
| 15 | D. E. Shaw & Co., Inc. | $5.1M | 500,000 | Hold |
| 16 | GLAZER CAPITAL, LLC | $3.9M | 379,931 | Added |
| 17 | HBK INVESTMENTS L P | $3.7M | 360,000 | Hold |
| 18 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $3.6M | 350,000 | Trimmed |
| 19 | Radcliffe Capital Management, L.P. | $3.5M | 338,534 | Added |
| 20 | Centiva Capital, LP | $3.5M | 338,000 | Hold |
| 21 | PICTON MAHONEY ASSET MANAGEMENT | $3.3M | 325,000 | Hold |
| 22 | Periscope Capital Inc. | $3.3M | 323,103 | Added |
| 23 | MILLENNIUM MANAGEMENT LLC | $3.2M | 314,650 | Added |
| 24 | K2 PRINCIPAL FUND, L.P. | $3.0M | 297,237 | Hold |
| 25 | AQR Arbitrage LLC | $2.9M | 283,119 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31