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.
Q4 2025 vs. Q3 2025
How the institutions holding Perimeter Acquisition Corp. I changed between Q3 2025 and Q4 2025.
All holders in Q4 2025All holders in Q3 2025
| Measure | Q3 2025 | Q4 2025 | Change |
|---|---|---|---|
| Holders | 43 | 53 | +10 |
| Shares | 21.8M | 21.5M | −272.5K (−1.3%) |
| Value | $222.0M | $221.0M | −$1.04M (−0.5%) |
New holders (12)
Institutions that held Perimeter Acquisition Corp. I at the end of Q4 2025 but not at the end of Q3 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Lineage Point Capital LP | 530,957 | $5.46M | 2.07% |
| HGC Investment Management Inc. | 238,400 | $2.45M | 0.52% |
| Fifth Lane Capital, LP | 125,000 | $1.28M | 1.51% |
| Readystate Asset Management LP | 93,925 | $965.5K | 0.04% |
| Alpine Global Management, LLC | 84,057 | $864.1K | 0.19% |
| Walleye Capital LLC | 34,882 | $358.6K | 0.00% |
| SIH Partners, LLLP | 34,078 | $350.3K | 0.02% |
| FNY Investment Advisers, LLC | 15,110 | $155.0K | 0.04% |
| Marex Group plc | 13,800 | $141.9K | 0.00% |
| Rangeley Capital, LLC | 10,000 | $102.8K | 0.09% |
| BlueCrest Capital Management Ltd | 10,000 | $102.8K | 0.00% |
| PenderFund Capital Management Ltd. | 8,000 | $82.2K | 0.01% |
Sold out (2)
Institutions that held Perimeter Acquisition Corp. I at the end of Q3 2025 and filed for Q4 2025 without it.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| Weiss Asset Management LP | 106,894 | $1.10M |
| UBS Oconnor LLC | 100,000 | $1.02M |