Latest Period
Q2 2026
Security Snapshot
Perimeter Acquisition Corp. I - Class A (PMTR) Institutional Ownership
CUSIP: G7010A129
13F Institutional Holders and Ownership History from Q2 2025 to Q2 2026
Institutions Reporting
56
Shares (Excl. Options)
22,120,794
Price
$10.42
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- Security type / class
- Equity / Class A
- Symbol
- PMTR on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 22,120,794
- Total 13F value
- $230,410,852
- Portfolio coverage rank
- 0%
- Share change
- +198,307
- Value change
- +$2,062,913
- Number of holders
- 56
- Shares outstanding
- 24,774,599
- SEC-reported price per share
- $10.42
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- PMTR - Perimeter Acquisition Corp. I - Class A is tracked under CUSIP G7010A129.
- 56 institutions reported positions in Q2 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 52 to 56 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $224,848,032 to $230,410,852.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 56 institutions filings for Q2 2026.
Security key
G7010A129
Latest holder period
Q2 2026
13F holders
56
13D/G owners
4
CIK / CUSIP context first
Open Q2 2026 holders
PMTR full holder history
Perimeter Acquisition Corp. I SEC filings
Perimeter Acquisition Corp. I company facts
Perimeter Acquisition Corp. I insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G7010A129:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
PMTR
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Harraden Circle Investments, LLC | 9.8% | +6.3% | $25,403,502 | +$1,455,318 | 2,440,298 | +6.1% | Harraden Circle Investments, LLC | 30 Jun 2026 |
| Fort Baker Capital Management LP | 6.3% | $16,135,926 | 1,573,684 | Fort Baker Capital Management LP | 31 Mar 2026 | |||
| Magnetar Financial LLC | 6% | $15,195,000 | 1,500,000 | MAGNETAR FINANCIAL LLC | 30 Jun 2025 | |||
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1.8% | -64% | $4,626,000 | -$8,224,000 | 450,000 | -64% | Healthcare of Ontario Pension Plan Trust Fund | 31 Dec 2025 |
As of 30 Jun 2026, 56 institutional investors reported holding 22,120,794 shares of Perimeter Acquisition Corp. I - Class A (PMTR). This represents 89% of the company’s total 24,774,599 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
78%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Harraden Circle Investments, LLC | 9.8% | 2,440,298 | 0% | 3.2% | $25,427,905 |
| Fort Baker Capital Management LP | 6.4% | 1,573,684 | 0% | 1.3% | $16,397,788 |
| Linden Advisors LP | 6.1% | 1,500,000 | 0% | 0.08% | $15,615,000 |
| Magnetar Financial LLC | 6.1% | 1,500,000 | 0% | 0.14% | $15,615,000 |
| Alberta Investment Management Corp | 6.1% | 1,500,000 | 0% | 0.09% | $15,615,000 |
| MOORE CAPITAL MANAGEMENT, LP | 4.8% | 1,200,000 | 0% | 0.28% | $12,504,000 |
| Governors Lane LP | 4.5% | 1,116,900 | 0% | 1.2% | $11,638,098 |
| Meteora Capital, LLC | 3.7% | 905,419 | +30% | 0.78% | $9,434,466 |
| Lineage Point Capital LP | 2.8% | 700,000 | -4.5% | 1.5% | $7,294,000 |
| Saba Capital Management, L.P. | 2.6% | 649,940 | -19% | 0.21% | $6,772,375 |
| TORONTO DOMINION BANK | 2.4% | 600,100 | -34% | 0.01% | $6,253,041 |
| TWO SIGMA INVESTMENTS, LP | 2.2% | 537,309 | 0% | 0% | $5,598,760 |
| Radcliffe Capital Management, L.P. | 2.1% | 521,525 | +54% | 0.41% | $5,434,291 |
| Ghisallo Capital Management LLC | 2% | 500,000 | 0% | 0.1% | $5,205,000 |
| D. E. Shaw & Co., Inc. | 2% | 500,000 | 0% | 0% | $5,205,000 |
| Sculptor Capital LP | 2% | 500,000 | 0% | 0.05% | $5,210,000 |
| Centiva Capital, LP | 1.7% | 409,442 | +21% | 0.14% | $4,262,291 |
| GLAZER CAPITAL, LLC | 1.5% | 379,931 | 0% | 0.1% | $3,959,000 |
| HBK INVESTMENTS L P | 1.5% | 360,000 | 0% | 0.04% | $3,751,200 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1.4% | 350,000 | 0% | 0.01% | $3,643,500 |
| Periscope Capital Inc. | 1.3% | 327,836 | +1.5% | 0.54% | $3,416,051 |
| PICTON MAHONEY ASSET MANAGEMENT | 1.3% | 325,000 | 0% | 0.03% | $3,383,251 |
| MILLENNIUM MANAGEMENT LLC | 1.3% | 314,650 | 0% | 0% | $3,278,653 |
| K2 PRINCIPAL FUND, L.P. | 1.2% | 297,237 | 0% | 0.37% | $3,097,210 |
| AQR Arbitrage LLC | 1.2% | 285,795 | +0.95% | 0.04% | $2,975,126 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
5
Latest
Q2 2026
Rows shown
1-5 of 5
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 22,120,794 | $230,410,852 | +$2,062,913 | $10.42 | 56 |
| 2026 Q1 | 21,922,487 | $224,848,032 | +$4,249,968 | $10.26 | 52 |
| 2025 Q4 | 21,496,777 | $220,974,003 | -$8,250,682 | $10.28 | 53 |
| 2025 Q3 | 21,828,201 | $222,622,902 | +$51,383,284 | $10.17 | 44 |
| 2025 Q2 | 16,784,548 | $170,864,471 | +$169,595,131 | $10.17 | 25 |