Security key
G7010A129
Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value (PMTR)
CUSIP: G7010A129
Q1 2026 13F Holders as of 31 Mar 2026
- Type / Class
- Equity / Class A Ordinary Shares, $0.0001 par value
- Shares outstanding
- 24,979,111
- Total 13F shares
- 21,922,487
- Share change
- +414,390
- Total reported value
- $224,848,032
- Price per share
- $10.26
- Number of holders
- 52
- Value change
- +$4,249,968
- Number of buys
- 16
- Number of sells
- 19
Report period
Q1 2026
Institutions
52
Top holders
10
PMTR full security history
Previous quarter: Q4 2025
Perimeter Acquisition Corp. I SEC filings
Perimeter Acquisition Corp. I company facts
Broader feeds
Reporting periods
Holder history for CUSIP G7010A129
Recent filing periods:
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 first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings 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 |
|---|---|---|---|---|---|---|---|---|
| Harraden Circle Investments, LLC |
13F
13D/G
|
Company |
9.3%
from 13D/G
|
3,462,249
mixed-class rows
|
$24,471,290 | — | 31 Dec 2025 | |
| Fort Baker Capital Management LP |
13D/G
13F
|
Company |
6.3%
|
1,573,684
|
$16,135,926 | $0 | 31 Mar 2026 | |
| Alberta Investment Management Corp |
13F
13D/G
|
Company |
6.1%
from 13D/G
|
2,250,000
mixed-class rows
|
$15,950,775 | — | 31 Dec 2025 | |
| Linden Capital L.P. |
13D/G
|
Linden Advisors LP |
6.1%
|
1,500,000
|
— | $0 | 14 May 2025 | |
| Magnetar Financial LLC |
13F
13D/G
|
Company |
6%
from 13D/G
|
2,250,000
mixed-class rows
|
$15,997,500 | — | 31 Dec 2025 | |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND |
13F
13D/G
|
Company |
1.8%
from 13D/G
|
1,200,000
mixed-class rows
|
$5,156,775 | — | 31 Dec 2025 | |
| Exor N.V. |
13F
|
Company |
617%
|
182,543,970
|
$4,943,290,708 | — | 31 Dec 2025 | |
| SCHRODER INVESTMENT MANAGEMENT GROUP |
13F
|
Company |
80%
|
23,669,250
|
$1,487,093,592 | — | 31 Dec 2025 | |
| ORBIMED ADVISORS LLC |
13F
|
Company |
21%
|
6,210,899
|
$20,134,459 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
2.2%
|
537,309
|
$5,523,537 | — | 31 Dec 2025 | |
| Ghisallo Capital Management LLC |
13F
|
Company |
2%
|
500,000
|
$5,140,000 | — | 31 Dec 2025 | |
| Sculptor Capital LP |
13F
|
Company |
2%
|
500,000
|
$5,140,000 | — | 31 Dec 2025 | |
| Financial Gravity Asset Management, Inc. |
13F
|
Company |
1.4%
|
419,517
|
$475,044 | — | 31 Dec 2025 | |
| GLAZER CAPITAL, LLC |
13F
|
Company |
1.4%
|
351,615
|
$3,615,000 | — | 31 Dec 2025 | |
| Centiva Capital, LP |
13F
|
Company |
1.4%
|
338,000
|
$3,474,640 | — | 31 Dec 2025 | |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS |
13F
|
Company |
1.1%
|
272,907
|
$2,805,484 | — | 31 Dec 2025 | |
| LMR Partners LLP |
13F
|
Company |
1%
|
250,000
|
$2,650,000 | — | 31 Dec 2025 | |
| CITIGROUP INC |
13F
|
Company |
0.73%
|
181,946
|
$1,870,405 | — | 31 Dec 2025 | |
| Westchester Capital Management, LLC |
13F
|
Company |
0.6%
|
150,000
|
$1,599,000 | — | 31 Dec 2025 | |
| BERKLEY W R CORP |
13F
|
Company |
0.6%
|
148,830
|
$1,529,972 | — | 31 Dec 2025 | |
| FIFTH LANE CAPITAL, LP |
13F
|
Company |
0.5%
|
125,000
|
$1,285,000 | — | 31 Dec 2025 | |
| MIZUHO SECURITIES USA LLC |
13F
|
Company |
0.4%
|
99,465
|
$1,009,570 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.39%
|
98,304
|
$1,010,565 | — | 31 Dec 2025 | |
| Alpine Global Management, LLC |
13F
|
Company |
0.34%
|
84,057
|
$864,106 | — | 31 Dec 2025 | |
| Pensionfund Sabic |
13F
|
Company |
0.15%
|
45,300
|
$5,234,000 | — | 31 Dec 2025 | |
| SIH Partners, LLLP |
13F
|
Company |
0.14%
|
34,078
|
$350,322 | — | 31 Dec 2025 | |
| Codex Capital Asset Management L.L.C. |
13F
|
Company |
0.09%
|
26,700
|
$6,723,863 | — | 31 Dec 2025 | |
| FNY Investment Advisers, LLC |
13F
|
Company |
0.06%
|
15,110
|
$155,000 | — | 31 Dec 2025 | |
| Marex Group plc |
13F
|
Company |
0.06%
|
13,800
|
$141,864 | — | 31 Dec 2025 | |
| BlueCrest Capital Management Ltd |
13F
|
Company |
0.04%
|
10,000
|
$102,800 | — | 31 Dec 2025 | |
| Rangeley Capital, LLC |
13F
|
Company |
0.04%
|
10,000
|
$102,800 | — | 31 Dec 2025 | |
| PenderFund Capital Management Ltd. |
13F
|
Company |
0.03%
|
8,000
|
$82,240 | — | 31 Dec 2025 | |
| Douglas Lane & Associates, LLC |
13F
|
Company |
0.02%
|
6,010
|
$1,114,975 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0%
|
649
|
$6,879 | — | 31 Dec 2025 | |
| Strategic Investment Solutions, Inc. /IL |
13F
|
Company |
0%
|
127
|
$28,357 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0%
|
87
|
$894 | — | 31 Dec 2025 | |
| Jordan Andrew Blashek |
3/4/5
|
Executive Chairman, Director, 10%+ Owner |
—
class O/S missing
|
575,000
|
— | — | 12 May 2025 | |
| Perimeter Acquisition Sponsor LLC |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
575,000
|
— | — | 12 May 2025 | |
| LINDEN ADVISORS LP |
13F
|
Company |
—
mixed-class rows
|
2,350,000
mixed-class rows
|
$16,074,500 | — | 31 Dec 2025 | |
| MOORE CAPITAL MANAGEMENT, LP |
13F
|
Company |
—
mixed-class rows
|
1,800,000
mixed-class rows
|
$12,760,620 | — | 31 Dec 2025 | |
| TORONTO DOMINION BANK |
13F
|
Company |
—
mixed-class rows
|
1,816,993
mixed-class rows
|
$12,212,208 | — | 31 Dec 2025 | |
| Governors Lane LP |
13F
|
Company |
—
mixed-class rows
|
1,544,428
mixed-class rows
|
$11,810,929 | — | 31 Dec 2025 | |
| Saba Capital Management, L.P. |
13F
|
Company |
—
mixed-class rows
|
1,610,715
mixed-class rows
|
$11,281,575 | — | 31 Dec 2025 | |
| METEORA CAPITAL, LLC |
13F
|
Company |
—
mixed-class rows
|
808,770
mixed-class rows
|
$7,480,868 | — | 31 Dec 2025 | |
| Lineage Point Capital LP |
13F
|
Company |
—
mixed-class rows
|
875,977
mixed-class rows
|
$5,702,409 | — | 31 Dec 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
—
mixed-class rows
|
750,000
mixed-class rows
|
$5,316,925 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
—
mixed-class rows
|
446,578
mixed-class rows
|
$4,638,456 | — | 31 Dec 2025 | |
| HBK INVESTMENTS L P |
13F
|
Company |
—
mixed-class rows
|
560,000
mixed-class rows
|
$3,842,340 | — | 31 Dec 2025 | |
| PICTON MAHONEY ASSET MANAGEMENT |
13F
|
Company |
—
mixed-class rows
|
487,500
mixed-class rows
|
$3,456,001 | — | 31 Dec 2025 | |
| PERISCOPE CAPITAL INC. |
13F
|
Company |
—
mixed-class rows
|
488,003
mixed-class rows
|
$3,438,315 | — | 31 Dec 2025 |
Institutional Holders of Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value (PMTR) as of Q1 2026
As of 31 Mar 2026,
Perimeter Acquisition Corp. I - Class A Ordinary Shares, $0.0001 par value (PMTR) was held by
52 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
21,922,487 shares.
The largest 10 holders included
Harraden Circle Investments, LLC, Fort Baker Capital Management LP, Linden Advisors LP, Magnetar Financial LLC, Alberta Investment Management Corp, MOORE CAPITAL MANAGEMENT, LP, Governors Lane LP, TORONTO DOMINION BANK, Saba Capital Management, L.P., and Lineage Point Capital LP.
This page lists
52
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
53
Q1 2026 holders
52
Holder diff
-1
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q1 2026 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.
An asterisk sign (*) next to the price indicates that the price is likely invalid.