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PMTR · Perimeter Acquisition Corp. I

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$10.40 -0.01 (-0.10%) At close · Aug 21
Going-concern doubt — flagged Aug 13, 2026

Substantial doubt about the company's ability to continue as a going concern.

“In connection with our assessment of going concern considerations under applicable accounting standards, management has determined that our possible need for additional financing to enable us to negotiate and complete our initial Business Combination, as well as the deadline by which we may be required to liquidate our Trust Account, raise substantial doubt about our ability to continue as a going concern through approximately one year from the date the unaudited condensed financial statements included in Item 1. "Interim Financial Statements" of this Quarterly Report were issued.”
View the 10-Q filed Aug 13, 2026
Market Cap
$320.59M
Shares
30.83M

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.

Holders: 61
Total Value: $230,498,653
Total Shares: 33,250,931

Institutional Ownership Trend

5 quarters

Holder Concentration

Across 61 13F filers · Δ vs Mar 31, 2026
Top Holder
11.0%
Jun 2025 → Jun 2026 · range 8.2% – 11.0%
+0.3 pts
Top 5
38.5%
Jun 2025 → Jun 2026 · range 33.6% – 38.5%
+0.9 pts
Top 10
59.2%
Jun 2025 → Jun 2026 · range 57.0% – 59.3%
−0.1 pts
HHI
465
Jun 2025 → Jun 2026 · range 417 – 465
Broadly held+8

Quarterly Activity

vs Mar 31, 2026
New
5
Increased
16
Decreased
11
Sold Out
3
Unchanged
29
Holder count: +2
Institutional value: -0.8%
Shares held: -0.2%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open
Centiva Capital, LP +271,639 609,639
METEORA CAPITAL, LLC +194,153 965,419
Radcliffe Capital Management, L.P. +182,991 577,825
Lineage Point Capital LP +167,837 1,273,611
BOOTHBAY FUND MANAGEMENT, LLC +102,891 116,623

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open
TORONTO DOMINION BANK −594,837 1,351,005
Saba Capital Management, L.P. −155,738 1,203,985
Context Capital Management, LLC −100,000 250,000
Shaolin Capital Management LLC −58,596 484,222
JPMORGAN CHASE & CO −53,426 126,566

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open
Verition Fund Management LLC 159,004 $1,656,821
Shay Capital LLC 49,800 $518,916
Rangeley Capital, LLC 2,502 $26,070
Alpine Global Management, LLC 18,842 $0
Arax Advisory Partners 1,300 $0

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
PenderFund Capital Management Ltd. 8,000 $82,080
Wealthspring Capital LLC 46,950 $0
Lighthouse Investment Partners, LLC 299,600 $0
Filter: New 5 Increased 16 Reduced 11 Sold out 3 Unchanged 29
Showing 100 of 102
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
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
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
Ghisallo Capital Management LLC $5,210,000 2.26% 500,000
Sculptor Capital LP $5,210,000 2.26% 500,000
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
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
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
SONA ASSET MANAGEMENT (US) LLC $864,765 0.38% 82,991
StoneX Group Inc. $829,369 0.36% 79,594
JPMORGAN CHASE & CO $797,817 0.35% 76,566
HEIGHTS CAPITAL MANAGEMENT, INC $613,998 0.27% 58,925
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
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
CITADEL ADVISORS LLC $143,712 0.06% 13,792
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
MORGAN STANLEY $489 0.00% 47
TORONTO DOMINION BANK PMTRW — — 615,000
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
HBK INVESTMENTS L P PMTRW — — 200,000
DLD Asset Management, LP PMTRW — — 132,764
TORONTO DOMINION BANK PMTRU — — 135,905
Parallax Volatility Advisers, L.P. PMTRW — — 14,300
BNP PARIBAS ARBITRAGE, SA PMTRW — — 49,152
CITIGROUP INC PMTRW — — 49,964
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
Walleye Capital LLC PMTRW — — 486,889
MILLENNIUM MANAGEMENT LLC PMTRU — — 148,857
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND PMTRW — — 750,000
JPMORGAN CHASE & CO PMTRU — — 50,000
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
HEIGHTS CAPITAL MANAGEMENT, INC PMTRW — — 29,462
READYSTATE ASSET MANAGEMENT LP PMTRU — — 26,045
UBS Group AG PMTRU — — 126
TENOR CAPITAL MANAGEMENT Co., L.P. PMTRW — — 50,000
Westchester Capital Management, LLC PMTRW — — 74,998
LMR Partners LLP PMTRU — — 250,000
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
BOOTHBAY FUND MANAGEMENT, LLC PMTRW — — 11,276
Centiva Capital, LP PMTRW — — 200,197
Key facts CIK 2061473 CUSIP G7010A129 13F (30d) 60 filings 59 filers Visit website

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