PMTR · Perimeter Acquisition Corp. I · Holdings

$10.44 +0.01 (+0.10%) At close · Oct 6

Market Cap

$321.20M

30.83M

Volume · Oct 5 315.6K Avg daily vol (3M) 69.53K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

Quarter:

Holders: 62

Total Value: $230,498,653

Total Shares: 33,397,881

Showing 1–100 of 104 holdings by value · page 1 of 2

Institutional Ownership Trend

5 quarters

Holder Concentration

Across 62 13F filers · Δ vs Mar 31, 2026

Top Holder

11.0%

+0.3 pts

Top 5

38.5%

+0.9 pts

Top 10

59.2%

−0.1 pts

HHI

465

Broadly held+8

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +3

Institutional value: -0.8%

Shares held: +0.2%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Large Centiva Capital, LP	+271,639	609,639
Mid METEORA CAPITAL, LLC	+194,153	965,419
Small Radcliffe Capital Management, L.P.	+182,991	577,825
Small Lineage Point Capital LP	+167,837	1,273,611
Mid BOOTHBAY FUND MANAGEMENT, LLC	+102,891	116,623

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Large TORONTO DOMINION BANK	−594,837	1,351,005
Mid Saba Capital Management, L.P.	−155,738	1,203,985
Mid Shaolin Capital Management LLC	−58,596	484,222
Mega JPMORGAN CHASE & CO	−53,426	126,566
Mega CITIGROUP INC	−53,381	209,964

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Large Verition Fund Management LLC	159,004	$1,656,821
Mid Shay Capital LLC	49,800	$518,916
Small Rangeley Capital, LLC	2,502	$26,070
Small Alpine Global Management, LLC	18,842	$0
Large Arax Advisory Partners	1,300	$0

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)	Open
Small PenderFund Capital Management Ltd.	8,000	$82,080
Mid Lighthouse Investment Partners, LLC	299,600	$0

Filter: New 5 Increased 16 Reduced 10 Sold out 2 Unchanged 31

Showing 100 of 104

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Harraden Circle Investments, LLC

$25,427,905

11.03%

2,440,298

Fort Baker Capital Management LP

$16,397,787

7.11%

1,573,684

Alberta Investment Management Corp

$15,630,000

6.78%

1,500,000

Linden Advisors LP

$15,630,000

6.78%

1,500,000

Magnetar Financial LLC

$15,630,000

6.78%

1,500,000

MOORE CAPITAL MANAGEMENT, LP

$12,504,000

5.42%

1,200,000

Governors Lane LP

$11,638,098

5.05%

1,116,900

METEORA CAPITAL, LLC

$9,434,465

4.09%

905,419

Lineage Point Capital LP

$7,294,000

3.16%

700,000

Saba Capital Management, L.P.

$6,772,374

2.94%

649,940

TORONTO DOMINION BANK

$6,253,042

2.71%

600,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	600,000	$6,252,000	100.0%	Defined
Held directly	100	$1,042	0.0%	Sole

TWO SIGMA INVESTMENTS, LP

$5,598,759

2.43%

537,309

Radcliffe Capital Management, L.P.

$5,434,290

2.36%

521,525

D. E. Shaw & Co., Inc.

$5,210,000

2.26%

500,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	500,000	$5,210,000	100.0%	Defined

Ghisallo Capital Management LLC

$5,210,000

2.26%

500,000

Sculptor Capital LP

$5,210,000

2.26%

500,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Sculptor Capital II LP joint	500,000	$5,210,000	100.0%	Sole

Centiva Capital, LP

$4,266,385

1.85%

409,442

GLAZER CAPITAL, LLC

$3,958,881

1.72%

379,931

HBK INVESTMENTS L P

$3,751,200

1.63%

360,000

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

$3,647,000

1.58%

350,000

Periscope Capital Inc.

$3,416,051

1.48%

327,836

PICTON MAHONEY ASSET MANAGEMENT

$3,386,500

1.47%

325,000

MILLENNIUM MANAGEMENT LLC

$3,278,653

1.42%

314,650

K2 PRINCIPAL FUND, L.P.

$3,097,209

1.34%

297,237

AQR Arbitrage LLC

$2,977,983

1.29%

285,795

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS

$2,633,665

1.14%

252,751

Context Capital Management, LLC

$2,605,000

1.13%

250,000

Shaolin Capital Management LLC

$2,344,406

1.02%

224,991

DLD Asset Management, LP

$2,077,237

0.90%

199,351

Schonfeld Strategic Advisors LLC

$1,671,211

0.73%

160,385

CITIGROUP INC

$1,667,200

0.72%

160,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	160,000	$1,667,200	100.0%	Defined

Verition Fund Management LLC

$1,656,821

0.72%

159,004

ARISTEIA CAPITAL, L.L.C.

$1,563,000

0.68%

150,000

Westchester Capital Management, LLC

$1,562,999

0.68%

150,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	1,402	$14,608	0.9%	Sole
Virtus Investment Advisers, LLC	136,148	$1,418,662	90.8%	Other
Held directly	12,450	$129,729	8.3%	Sole

BERKLEY W R CORP

$1,550,808

0.67%

148,830

READYSTATE ASSET MANAGEMENT LP

$1,452,693

0.63%

139,414

BOOTHBAY FUND MANAGEMENT, LLC

$1,097,715

0.48%

105,347

TENOR CAPITAL MANAGEMENT Co., L.P.

$1,042,000

0.45%

100,000

GOLDMAN SACHS GROUP INC

$1,024,327

0.44%

98,304

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	98,304	$1,024,327	100.0%	Defined

SONA ASSET MANAGEMENT (US) LLC

$864,765

0.38%

82,991

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SONA ASSET MANAGEMENT (UK) LLP	82,991	$864,765	100.0%	Other

StoneX Group Inc.

$829,369

0.36%

79,594

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STONEX FINANCIAL INC.	79,594	$829,369	100.0%	Defined

JPMORGAN CHASE & CO

$797,817

0.35%

76,566

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	66,680	$694,805	87.1%	Defined
J.P. Morgan Securities LLC	9,886	$103,012	12.9%	Defined

HEIGHTS CAPITAL MANAGEMENT, INC

$613,998

0.27%

58,925

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	58,925	$613,998	100.0%	Other

Shay Capital LLC

$518,916

0.23%

49,800

Walleye Capital LLC

$363,470

0.16%

34,882

Parallax Volatility Advisers, L.P.

$260,500

0.11%

25,000

SIH Partners, LLLP

$239,951

0.10%

23,028

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Susquehanna International Group Ltd.	23,028	$239,951	100.0%	Other

CSS LLC/IL

$206,222

0.09%

19,791

Clear Street Group Inc.

$201,533

0.09%

19,341

FNY Investment Advisers, LLC

$157,446

0.07%

15,110

Virtu Financial LLC

$150,933

0.07%

14,485

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	14,485	$150,933	100.0%	Defined

CITADEL ADVISORS LLC

$143,712

0.06%

13,792

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	13,792	$143,712	100.0%	Defined

BNP PARIBAS ARBITRAGE, SA

$117,954

0.05%

11,320

Rangeley Capital, LLC

$26,070

0.01%

2,502

UBS Group AG

$1,844

0.00%

177

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	177	$1,844	100.0%	Defined

MORGAN STANLEY

$489

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	47	$489	100.0%	Defined

TORONTO DOMINION BANK PMTRW

—

615,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	615,000	$0	—	Defined

MILLENNIUM MANAGEMENT LLC PMTRW

—

241,597

Schonfeld Strategic Advisors LLC PMTRW

—

40,000

Harraden Circle Investments, LLC PMTRW

—

1,161,751

Radcliffe Capital Management, L.P. PMTRW

—

56,300

Magnetar Financial LLC PMTRW

—

750,000

DLD Asset Management, LP PMTRW

—

132,764

HBK INVESTMENTS L P PMTRW

—

200,000

TORONTO DOMINION BANK PMTRU

—

135,905

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	135,905	$0	—	Defined

Parallax Volatility Advisers, L.P. PMTRW

—

14,300

BNP PARIBAS ARBITRAGE, SA PMTRW

—

49,152

CITIGROUP INC PMTRW

—

49,964

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	49,964	$0	—	Defined

HGC Investment Management Inc. PMTRW

—

194,200

Parallax Volatility Advisers, L.P. PMTRU

—

15,478

METEORA CAPITAL, LLC PMTRW

—

60,000

Governors Lane LP PMTRW

—

373,679

K2 PRINCIPAL FUND, L.P. PMTRW

—

116,818

Saba Capital Management, L.P. PMTRW

—

554,045

Linden Advisors LP PMTRW

—

850,000

Shaolin Capital Management LLC PMTRW

—

259,231

Context Capital Management, LLC PMTRW

—

100,000

Walleye Capital LLC PMTRW

—

486,889

Wealthspring Capital LLC PMTRW

—

46,950

MILLENNIUM MANAGEMENT LLC PMTRU

—

148,857

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND PMTRW

—

750,000

JPMORGAN CHASE & CO PMTRU

—

50,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	50,000	$0	—	Defined

Lineage Point Capital LP PMTRW

—

573,611

Periscope Capital Inc. PMTRW

—

165,100

Alpine Global Management, LLC PMTRW

—

18,842

Clear Street Group Inc. PMTRU

—

69,809

ARISTEIA CAPITAL, L.L.C. PMTRW

—

75,000

UBS Group AG PMTRW

—

1,235

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	1,235	$0	—	Defined

HEIGHTS CAPITAL MANAGEMENT, INC PMTRW

—

29,462

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	29,462	$0	—	Other

READYSTATE ASSET MANAGEMENT LP PMTRU

—

26,045

UBS Group AG PMTRU

—

126

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	126	$0	—	Defined

TENOR CAPITAL MANAGEMENT Co., L.P. PMTRW

—

50,000

Westchester Capital Management, LLC PMTRW

—

74,998

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	701	$0	—	Sole
Virtus Investment Advisers, LLC	68,073	$0	—	Other
Held directly	6,224	$0	—	Sole

LMR Partners LLP PMTRU

—

250,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
LMR PARTNERS (DIFC) Ltd	250,000	$0	—	Sole

PICTON MAHONEY ASSET MANAGEMENT PMTRW

—

162,500

Hudson Bay Capital Management LP PMTRW

—

100,000

MOORE CAPITAL MANAGEMENT, LP PMTRW

—

600,000

Alberta Investment Management Corp PMTRW

—

750,000

AQR Arbitrage LLC PMTRW

—

148,557

Arax Advisory Partners PMTRW

—

1,300

Key facts CIK 2061473 CUSIP G7010A129 13F (30d) 1 filings 1 filers Visit website