Perimeter Acquisition Corp. I
PMTR- 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; 56 institutions reported holding it in 13F filings for Q2 2026, worth $230.4M in total; no superinvestor holds it.
13F holders, Q2 2025
Institutional positions in Perimeter Acquisition Corp. I as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 25
- +25 vs. Q1 2025
- Shares held
- 16.8M
- +16.8M vs. Q1 2025
- Total value
- $170.9M
- +$170.9M vs. Q1 2025
- New holders
- 25
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q1 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting PMTR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 56 | $230.4M |
| Q1 2026 | 52 | $224.8M |
| Q4 2025 | 53 | $221.0M |
| Q3 2025 | 43 | $222.0M |
| Q2 2025 | 25 | $170.9M |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Perimeter Acquisition Corp. I; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Harraden Circle Investments, LLC | 1,899,998 | $19.3M | 5.00% | +1,899,998 | New |
| Linden Advisors LP | 1,500,000 | $15.3M | 0.09% | +1,500,000 | New |
| Alberta Investment Management Corp | 1,500,000 | $15.3M | 0.12% | +1,500,000 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 1,500,000 | $15.3M | 0.03% | +1,500,000 | New |
| Magnetar Financial LLC | 1,500,000 | $15.3M | 0.07% | +1,500,000 | New |
| Governors Lane LP | 1,167,000 | $11.9M | 1.62% | +1,167,000 | New |
| Saba Capital Management, L.P. | 1,058,692 | $10.8M | 0.29% | +1,058,692 | New |
| Meteora Capital, LLC | 1,045,023 | $10.6M | 1.98% | +1,045,023 | New |
| Fort Baker Capital Management LP | 800,000 | $8.14M | 1.42% | +800,000 | New |
| Lighthouse Investment Partners, LLC | 750,000 | $7.63M | 0.33% | +750,000 | New |
| Shaolin Capital Management LLC | 626,435 | $6.37M | 0.28% | +626,435 | New |
| Two Sigma Investments, LP | 537,309 | $5.46M | 0.01% | +537,309 | New |
| D. E. Shaw & Co., Inc. | 500,000 | $5.10M | 0.01% | +500,000 | New |
| Sculptor Capital LP | 500,000 | $5.08M | 0.08% | +500,000 | New |
| Glazer Capital, LLC | 416,328 | $4.23M | 0.15% | +416,328 | New |
| Weiss Asset Management LP | 250,000 | $2.55M | 0.04% | +250,000 | New |
| K2 Principal Fund, L.P. | 247,237 | $2.51M | 0.46% | +247,237 | New |
| Periscope Capital Inc. | 204,400 | $2.08M | 0.79% | +204,400 | New |
| Context Capital Management, LLC | 200,000 | $2.03M | 0.07% | +200,000 | New |
| Aristeia Capital LLC | 150,000 | $1.53M | 0.04% | +150,000 | New |
| Berkley W R Corp | 148,830 | $1.51M | 0.09% | +148,830 | New |
| Mizuho Securities USA LLC | 126,934 | $1.27M | 0.03% | +126,934 | New |
| UBS Oconnor LLC | 100,000 | $1.02M | 0.03% | +100,000 | New |
| Clear Street LLC | 56,306 | $572.6K | 0.00% | +56,306 | New |
| Morgan Stanley | 56 | $570 | 0.00% | +56 | New |