Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value (PMTR)

Q: What does CUSIP G7010A129 represent in this 13F holders report?

CUSIP G7010A129 is the security identifier for PMTR - Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value used to aggregate holder disclosures.

Q: How many institutions held PMTR - Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value in Q3 2025?

44 institutional investors reported PMTR - Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value for Q3 2025. Use the holders table for investor-level position and value details.

CUSIP: G7010A129

Q3 2025 13F Holders as of 30 Sep 2025

Security type / class: Equity / Class A Ordinary Shares, $0.0001 par value
Total 13F shares: 21,828,201
Total 13F value: $222,622,902
Share change: +5,044,153
SEC-reported price per share: $10.17
Number of holders: 44
Value change: +$51,383,284
Number of buys: 24
Number of sells: 7
Shares outstanding: 24,979,111

Security key

G7010A129

Report period

Q3 2025

Institutions

Top holders

PMTR full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2025 Previous quarter: Q2 2025 Perimeter Acquisition Corp. I SEC filings Perimeter Acquisition Corp. I company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP G7010A129

Newer quarter: Q4 2025 Previous quarter: Q2 2025

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025

Ownership snapshot

Top reported holders of PMTR - Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Harraden Circle Investmen...

Disclosed value leader

Exor N.V.

Comparable rows

15/15

Latest evidence

30 Jun 2025

13F 13D/G Lead comparable stake: 7.7% 13D/G row: Harraden Circle Investments, LLC Showing 1-6 of 15 holder rows.

Quick read

Harraden Circle Investments, LLC leads the comparable SEC ownership view at 7.7%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Harraden Circle Investments, LLC's linked filing trail.

Comparable ownership Top 5

Harraden Circle Investments, LLC 7.7%

Alberta Investment Management Corp 6.1%

Linden Capital L.P. 6.1%

Magnetar Financial LLC 6%

Westwood Global Investments, LLC 698%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Harraden Circle Investments, LLC	13F 13D/G Company 13F 13D/G	7.7% from 13D/G	$19,958,398 2,892,838 shares mixed-class rows	—	30 Jun 2025
Alberta Investment Management Corp	13F 13D/G Company 13F 13D/G	6.1% from 13D/G	$15,787,500 2,250,000 shares mixed-class rows	—	30 Jun 2025
Linden Capital L.P.	13D/G Linden Advisors LP 13D/G	6.1%	— 1,500,000 shares	$0	14 May 2025
Magnetar Financial LLC	13F 13D/G Company 13F 13D/G	6% from 13D/G	$15,742,500 2,250,000 shares mixed-class rows	—	30 Jun 2025
Westwood Global Investments, LLC	13F Company 13F	698%	$1,853,932,381 206,604,197 shares	—	30 Jun 2025
Exor N.V.	13F Company 13F	617%	$4,377,404,401 182,543,970 shares	—	30 Jun 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

21,828,201

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2025 vs Q2 2025 Across Filers

Q2 2025 holders

Q3 2025 holders

Holder diff

Investor	Q2 2025 Shares	Q3 2025 Shares	Share Diff	Share Chg %	Q2 2025 value	Q3 2025 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend