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 Q4 2025?

53 institutional investors reported PMTR - Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value for Q4 2025. Use the holders table for investor-level position and value details.

CUSIP: G7010A129

Q4 2025 13F Holders as of 31 Dec 2025

Type / Class: Equity / Class A Ordinary Shares, $0.0001 par value
Shares outstanding: 24,979,111
Total 13F shares: 21,496,777
Share change: -803,456
Total reported value: $220,974,003
Price per share: $10.28
Number of holders: 53
Value change: -$8,250,682
Number of buys: 20
Number of sells: 16

Quarterly Holders Quick Answers

What is CUSIP G7010A129?
CUSIP G7010A129 identifies PMTR - Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value in SEC institutional holdings data.

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Newer quarter: Q1 2026
Previous quarter: Q3 2025

Recent filing periods for CUSIP G7010A129:

Q1 2026 Q4 2025 Q3 2025 Q2 2025

Top shareholders 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. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Exor N.V.	13F	Company	617%	182,543,970	$4,976,148,622	—	30 Sep 2025	13F
Westwood Global Investments, LLC	13F	Company	677%	200,333,763	$2,002,575,576	—	30 Sep 2025	13F
WGI DM, LLC	13F	Company	38%	11,191,147	$1,340,451,793	—	30 Sep 2025	13F
Douglas Lane & Associates, LLC	13F	Company	5.1%	1,498,905	$51,517,381	—	30 Sep 2025	13F
Harraden Circle Investments, LLC	13D/G 13F	Company	9.3%	2,300,498	$23,649,119	$0	31 Dec 2025	13D/G 13F
LINDEN ADVISORS LP	13F	Company	— mixed-class rows	2,350,000 mixed-class rows	$15,880,835	—	30 Sep 2025	13F
Alberta Investment Management Corp	13F 13D/G	Company	6.1% from 13D/G	2,250,000 mixed-class rows	$15,825,000	—	30 Sep 2025	13F 13D/G
Magnetar Financial LLC	13F 13D/G	Company	6% from 13D/G	2,250,000 mixed-class rows	$15,821,288	—	30 Sep 2025	13F 13D/G
TORONTO DOMINION BANK	13F	Company	— mixed-class rows	1,859,266 mixed-class rows	$14,096,042	—	30 Sep 2025	13F
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	13F 13D/G	Company	1.8% from 13D/G	2,000,000 mixed-class rows	$13,285,000	—	30 Sep 2025	13F 13D/G
MOORE CAPITAL MANAGEMENT, LP	13F	Company	— mixed-class rows	1,800,000 mixed-class rows	$12,564,000	—	30 Sep 2025	13F
ORBIMED ADVISORS LLC	13F	Company	21%	6,210,899	$12,504,779	—	30 Sep 2025	13F
METEORA CAPITAL, LLC	13F	Company	— mixed-class rows	1,368,888 mixed-class rows	$12,330,396	—	30 Sep 2025	13F
Governors Lane LP	13F	Company	— mixed-class rows	1,619,528 mixed-class rows	$12,139,907	—	30 Sep 2025	13F
Saba Capital Management, L.P.	13F	Company	— mixed-class rows	1,610,715 mixed-class rows	$11,071,133	—	30 Sep 2025	13F
Fort Baker Capital Management LP	13F	Company	— mixed-class rows	1,199,999 mixed-class rows	$8,375,999	—	30 Sep 2025	13F
Sculptor Capital LP	13F	Company	2.6%	660,249	$6,714,732	—	30 Sep 2025	13F
Codex Capital Asset Management L.L.C.	13F	Company	0.09%	26,000	$6,642,830	—	30 Sep 2025	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	2.2%	537,309	$5,464,433	—	30 Sep 2025	13F
D. E. Shaw & Co., Inc.	13F	Company	— mixed-class rows	750,000 mixed-class rows	$5,285,200	—	30 Sep 2025	13F
Ghisallo Capital Management LLC	13F	Company	2%	500,000	$5,125,000	—	30 Sep 2025	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	— mixed-class rows	447,357 mixed-class rows	$4,567,544	—	30 Sep 2025	13F
HBK INVESTMENTS L P	13F	Company	— mixed-class rows	600,000 mixed-class rows	$4,188,000	—	30 Sep 2025	13F
HGC Investment Management Inc.	13F	Company	1.6%	388,400	$3,996,636	—	30 Sep 2025	13F
GLAZER CAPITAL, LLC	13F	Company	— mixed-class rows	436,359 mixed-class rows	$3,853,000	—	30 Sep 2025	13F
PERISCOPE CAPITAL INC.	13F	Company	— mixed-class rows	530,100 mixed-class rows	$3,811,110	—	30 Sep 2025	13F
Shaolin Capital Management LLC	13F	Company	— mixed-class rows	660,046 mixed-class rows	$3,676,901	—	30 Sep 2025	13F
PICTON MAHONEY ASSET MANAGEMENT	13F	Company	— mixed-class rows	487,500 mixed-class rows	$3,403,000	—	30 Sep 2025	13F
AQR Arbitrage LLC	13F	Company	— mixed-class rows	452,538 mixed-class rows	$3,182,851	—	30 Sep 2025	13F
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	13F	Company	— mixed-class rows	438,871 mixed-class rows	$3,134,323	—	30 Sep 2025	13F
Pensionfund Sabic	13F	Company	0.13%	39,800	$2,785,000	—	30 Sep 2025	13F
K2 PRINCIPAL FUND, L.P.	13F	Company	— mixed-class rows	370,855 mixed-class rows	$2,588,571	—	30 Sep 2025	13F
LMR Partners LLP	13F	Company	1%	250,000	$2,572,500	—	30 Sep 2025	13F
Centiva Capital, LP	13F	Company	1%	250,000	$2,562,500	—	30 Sep 2025	13F
JPMORGAN CHASE & CO	13F	Company	— mixed-class rows	216,680 mixed-class rows	$2,258,470	—	30 Sep 2025	13F
Radcliffe Capital Management, L.P.	13F	Company	— mixed-class rows	259,357 mixed-class rows	$2,098,873	—	30 Sep 2025	13F
Context Capital Management, LLC	13F	Company	— mixed-class rows	300,000 mixed-class rows	$2,094,000	—	30 Sep 2025	13F
CITIGROUP INC	13F	Company	0.8%	200,000	$2,050,000	—	30 Sep 2025	13F
DLD Asset Management, LP	13F	Company	0.8%	199,150	$2,025,356	—	30 Sep 2025	13F
Westchester Capital Management, LLC	13F	Company	0.6%	150,000	$1,575,000	—	30 Sep 2025	13F
ARISTEIA CAPITAL, L.L.C.	13F	Company	— mixed-class rows	225,000 mixed-class rows	$1,570,504	—	30 Sep 2025	13F
BERKLEY W R CORP	13F	Company	0.6%	148,830	$1,513,601	—	30 Sep 2025	13F
Schonfeld Strategic Advisors LLC	13F	Company	— mixed-class rows	196,425 mixed-class rows	$1,331,570	—	30 Sep 2025	13F
MIZUHO SECURITIES USA LLC	13F	Company	0.49%	122,530	$1,243,680	—	30 Sep 2025	13F
Weiss Asset Management LP	13F	Company	— mixed-class rows	308,339 mixed-class rows	$1,216,531	—	30 Sep 2025	13F
TENOR CAPITAL MANAGEMENT Co., L.P.	13F	Company	— mixed-class rows	150,000 mixed-class rows	$1,047,000	—	30 Sep 2025	13F
Wealthspring Capital LLC	13F	Company	— mixed-class rows	146,850 mixed-class rows	$1,025,013	—	30 Sep 2025	13F
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)	13F	Company	0.4%	100,000	$1,025,000	—	30 Sep 2025	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.39%	98,304	$999,752	—	30 Sep 2025	13F
Clear Street Group Inc.	13F	Company	— mixed-class rows	84,005 mixed-class rows	$628,333	—	30 Sep 2025	13F

Institutional Holders of Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value (PMTR) as of Q4 2025

As of 31 Dec 2025, Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value (PMTR) was held by 53 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 21,496,777 shares. The largest 10 holders included Harraden Circle Investments, LLC, Alberta Investment Management Corp, Magnetar Financial LLC, Linden Advisors LP, MOORE CAPITAL MANAGEMENT, LP, Governors Lane LP, Saba Capital Management, L.P., TORONTO DOMINION BANK, Fort Baker Capital Management LP, and METEORA CAPITAL, LLC. This page lists 53 institutional shareholders reporting positions in this security for the Q4 2025 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2025 vs Q3 2025 Across Filers

Q3 2025 holders

Q4 2025 holders

Holder diff

Investor	Q3 2025 Shares	Q4 2025 Shares	Share Diff	Share Chg %	Q3 2025 Value $	Q4 2025 Value $	Value Diff $	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.