Perimeter Acquisition Corp. IPMTRU
13F holders, Q4 2025 (December 31)9holders −1
1new positions
2sold out
1famous investor
$10.62avg. 13F price*
At the end of Q4 2025, 9 institutions reported holding Perimeter Acquisition Corp. I (PMTRU) in their 13F filings, down 1 from Q3 2025. 1 opened new positions and 2 sold out. The largest holders were LMR Partners LLP ($2.6M), Westchester Capital Management, LLC ($1.6M) and JPMorgan Chase & Co. ($1.6M). One famous investor held it Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Perimeter Acquisition Corp. I
- CUSIP
- G7010A103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $7K |
| Exits | 2 | $4.1M |
All 13F filers, Q3 2025 → Q4 2025: 4,958 shares bought and 405,406 shares sold, net −400,448 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 9 holders
| LMR Partners LLP | 0.03% | No change | 250,000 | $2.6M |
| Westchester Capital Management, LLC | 0.08% | No change | 150,000 | $1.6M |
| JPMorgan Chase & Co. | 0.00% | No change | 150,000 | $1.6M |
| Millennium Management | 0.00% | Reduce -0.3% | 148,857 | $1.6M |
| Toronto Dominion Bank | 0.00% | Reduce -4.4% | 141,694 | $1.5M |
| Readystate Asset Management LP | 0.02% | No change | 26,045 | $278K |
| Parallax Volatility Advisers, L.P. | 0.01% | No change | 15,478 | $164K |
| Clear Street Group Inc. | 0.00% | Add +95.2% | 8,836 | $94K |
| UBS Group AG | 0.00% | New | 649 | $7K |
"% of holder's portfolio" is PMTRU's weight in each manager's 13F, not the share of Perimeter Acquisition Corp. I the manager owns.