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PMTRW · Perimeter Acquisition Corp. I · Holdings

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$0.48 At close · Oct 23
Market Cap
$322.13M
Shares
30.83M
Volume · Oct 23 1045 Avg daily vol (3M) 6189

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.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
Holders: 40
Total Value: $9,462,072
Total Shares: 10,580,867

Institutional Ownership Trend

5 quarters

Holder Concentration

Across 40 13F filers · Δ vs Mar 31, 2026
Top Holder
11.1%
Jun 2025 → Jun 2026 · range 0.0% – 100.0%
−0.6 pts
Top 5
41.5%
Jun 2025 → Jun 2026 · range 0.0% – 100.0%
−1.3 pts
Top 10
68.6%
Jun 2025 → Jun 2026 · range 0.0% – 100.0%
+0.0 pts
HHI
562
Jun 2025 → Jun 2026 · range 0 – 10,000
Broadly held−17

Who Holds PMTRW

Last 5 quarters through Jun 30, 2026

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026: 38 filers, like-for-like change -1.4%; actively managed books -1.4%.

Holder type Share Filers Change
Registered adviser 63.7% 24 -1.0%
Exempt adviser 1.6% 1 0.0%
Adviser 6.2% 2 +42.2%
Bank 6.0% 2 -31.1%
Non-US 18.5% 5 0.0%
Broker-dealer 0.0% 0 —
Unknown 4.0% 4 +4.8%
How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

38 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders
2
5.26% of filers hold it in their top 10
Mar 31, 2026: 2
Holders above 5%
0
median weight —
Mar 31, 2026: 0
Crowding
—
shares outstanding is an issuer-wide count, not one listing's
Private-fund advisers
—
of shares outstanding
Institutional ownership
—
shares outstanding is an issuer-wide count, not one listing's
Top 10 holders
68.9%
of 13F shares, Herfindahl 0.057
Active holders
-1.4%
like-for-like share change of active filers
5% stakes on record
0
0 13D, 0 13G

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Shared Holders

Companies PMTRW's active holders also own, quarter ended Mar 31, 2026
# Company Shared holders
1 ATII Archimedes Tech SPAC Partners II Co. 3
2 GTEN Gores Holdings X, Inc. 3
3 ACAA Averin Capital Acquisition Corp. 3
4 BCSS Bain Capital GSS Investment Corp. 3
5 EVAC EQV Ventures Acquisition Corp. II 3
6 SARO StandardAero, Inc. 3
7 PEN Penumbra Inc 3
8 EA Electronic Arts Inc. 3
9 WBD Warner Bros. Discovery, Inc. 3
10 NSC Norfolk Southern Corp 3

Shareholder Targets

13F filers that own its peers but not PMTRW, quarter ended Mar 31, 2026

Found through its holder-overlap peers: ATII, GTEN, ACAA, BCSS, EVAC, SARO, PEN, EA, WBD, NSC, NVDA. 6,085 filers in all.

# Filer In peers
1 BlackRock, Inc. Holding company, Index-like $352,648,955,233 6 held
2 VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like $280,731,392,344 6 held
3 STATE STREET CORP Bank, Index-like $183,255,492,297 6 held
4 FMR LLC Holding company, Diversified active $175,284,864,291 6 held
5 GEODE CAPITAL MANAGEMENT, LLC Registered adviser, Index-like $110,139,124,602 8 held
6 VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active $95,953,894,379 6 held
7 PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active $66,347,185,915 6 held
8 NORTHERN TRUST CORP Bank, Index-like $46,165,543,863 6 held
9 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser, Index-like $36,027,221,530 7 held
10 Invesco Ltd. Adviser, Diversified active $35,492,077,709 6 held

Quarterly Activity

vs Mar 31, 2026
New
4
Increased
4
Decreased
8
Sold Out
1
Unchanged
24

New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.

Holder count: +3
Institutional value: +37.9%
Shares held: -1.3%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 40 of 40
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 2061473 CUSIP G7010A129 Visit website