13F reference 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 Q3 2026
Institutions Reporting
56
Shares (Excl. Options)
22.12M
Full value: 22,120,794 · shares · 30 Jun 2026Price
$10.42
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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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
- $10.39
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
Filing notes and source
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 to
$224.85M
Full value: $224,848,032 · USD · 31 Mar 2026.$230.41M
Full value: $230,410,852 · USD · 30 Jun 2026
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
13F reference 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
shares of
Perimeter Acquisition Corp. I - Class A (PMTR).
This represents
89%
of the company’s total
outstanding shares.
22.12M
Full value: 22,120,794 · shares · 30 Jun 202624.77M
Full value: 24,774,599 · shares · Stored outstanding share count13F 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 |
| Alberta Investment Management Corp | 6.1% | 1,500,000 | 0% | 0.09% | $15,615,000 |
| 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 |
| 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
6
Headline period
Q2 2026
Rows shown
1-6 of 6
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 15,110 | $157,000 | $10.39 | 1 | |
| 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 |