DOSSIER · 13F Holders · Q1 2025

QUARTZSEA ACQUISITION CORP

4 institutions still hold QUARTZSEA ACQUISITION CORP as of Q1 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G7314B112·4 13F holders·last filed Mar 31, 2025
Market cap
13F value held
$9M
visible holders
Holders
4
filers reporting
Concentration
96.40%
MIZUHO SECURITIES USA LLC #1
top holder share
AI Holders Summary · Q1 2025

4 institutions reported QUARTZSEA ACQUISITION CORP in Q1 2025. MIZUHO SECURITIES USA LLC leads at 96.4% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
MIZUHO SECURITIES USA LLC
CIK 0001513006
$9M856K0.19%Q1 2025
02
Clear Street Group Inc.
CIK 0001881567
$300K28K0.00%Q2 2026
03
UBS Group AG
CIK 0001610520
$21K2K0.00%Q2 2026
04
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025