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 Q2 2026?

1 institutional investor reported PMTR - Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value for Q2 2026. Use the holders table for investor-level position and value details.

CUSIP: G7010A129

Q2 2026 13F Holders as of 30 Jun 2026

Security type / class: Equity / Class A Ordinary Shares, $0.0001 par value
Total 13F shares: 15,110
Total 13F value: $157,000
Share change: 0
SEC-reported price per share: $10.39
Number of holders: 1
Shares outstanding: 24,979,111

Security key

G7010A129

Report period

Q2 2026

Institutions

Top holders

PMTR full security history Ownership snapshot Full 13F holder table Previous quarter: Q1 2026 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

Previous quarter: Q1 2026

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

31 Mar 2026

13F 13D/G Lead comparable stake: 9.3% 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 9.3%.

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 9.3%

Fort Baker Capital Management LP 6.3%

Alberta Investment Management Corp 6.1%

Linden Capital L.P. 6.1%

Magnetar Financial LLC 6%

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	9.3% from 13D/G	$25,839,065 3,602,049 shares mixed-class rows	—	31 Mar 2026
Fort Baker Capital Management LP	13F 13D/G Company 13F 13D/G	6.3% from 13D/G	$16,329,641 1,839,833 shares mixed-class rows	—	31 Mar 2026
Alberta Investment Management Corp	13F 13D/G Company 13F 13D/G	6.1% from 13D/G	$15,892,500 2,250,000 shares mixed-class rows	—	31 Mar 2026
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	$15,825,000 2,250,000 shares mixed-class rows	—	31 Mar 2026
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	13D/G 13F Company 13D/G 13F	1.8%	$4,626,000 450,000 shares	-$8,224,000	31 Dec 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 Q2 2026

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

Institutions

15,110

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 Q2 2026 vs Q1 2026 Across Filers

Q1 2026 holders

Q2 2026 holders

Holder diff

-51

Investor	Q1 2026 Shares	Q2 2026 Shares	Share Diff	Share Chg %	Q1 2026 value	Q2 2026 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend