DOSSIER · 13F Holders · Q2 2026

PERIMETER ACQUISITION CORP I

9 institutions still hold PERIMETER ACQUISITION CORP I as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G7010A103·9 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$8M
visible holders
Holders
9
filers reporting
Concentration
35.89%
LMR Partners LLP #1
top holder share
AI Holders Summary · Q2 2026

9 institutions reported PERIMETER ACQUISITION CORP I in Q2 2026. LMR Partners LLP leads at 35.9% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
LMR Partners LLP
CIK 0001578621
$3M250K0.01%Q2 2026
02
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$2M149K0.00%Q2 2026
03
TORONTO DOMINION BANK
CIK 0000947263
$1M136K0.00%Q2 2026
04
Clear Street Group Inc.
CIK 0001881567
$753K70K0.00%Q2 2026
05
JPMORGAN CHASE & CO
CIK 0000019617
$540K50K0.00%Q2 2026
06
READYSTATE ASSET MANAGEMENT LP
CIK 0001900923
$278K26K0.01%Q4 2025
07
Parallax Volatility Advisers, L.P.
CIK 0001521001
$172K15K0.00%Q2 2026
08
UBS Group AG
CIK 0001610520
$1K1260.00%Q2 2026
09
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025