13F Insight
DOSSIER · 13F Holders · Q2 2026

QUARTZSEA ACQUISITION CORP

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

CUSIP G7314B120·17 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$1M
visible holders
Holders
17
filers reporting
Concentration
40.91%
Harraden Circle Investments, LLC #1
top holder share
AI Holders Summary · Q2 2026

17 institutions reported QUARTZSEA ACQUISITION CORP in Q2 2026. Harraden Circle Investments, LLC leads at 40.9% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Harraden Circle Investments, LLC
CIK 0001910592
$561K2.5M0.07%Q2 202602
Shaolin Capital Management LLC
CIK 0001766806
$127K575K0.01%Q2 202603
MANGROVE PARTNERS IM, LLC
CIK 0001535392
$90K408K0.01%Q2 202604
HIGHBRIDGE CAPITAL MANAGEMENT LLC
CIK 0000919185
$84K383K0.00%Q2 202605
RIVERNORTH CAPITAL MANAGEMENT, LLC
CIK 0001447578
$80K500K0.00%Q1 202606
Polar Asset Management Partners Inc.
CIK 0001326389
$77K350K0.00%Q2 202607
AQR Arbitrage LLC
CIK 0001167456
$76K380K0.00%Q4 202508
TORONTO DOMINION BANK
CIK 0000947263
$74K336K0.00%Q2 202609
Clear Street Group Inc.
CIK 0001881567
$59K268K0.00%Q2 202610
D. E. Shaw & Co., Inc.
CIK 0001009207
$34K170K0.00%Q4 202511
LINDEN ADVISORS LP
CIK 0001279396
$33K175K0.00%Q2 202612
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$26K120K0.00%Q2 202613
Hudson Bay Capital Management LP
CIK 0001393825
$22K100K0.00%Q2 202614
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$16K74K0.00%Q2 202615
GLAZER CAPITAL, LLC
CIK 0001076809
$9K79K0.00%Q1 202616
MIZUHO SECURITIES USA LLC
CIK 0000812291
$2K10K0.00%Q2 202617
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025