13F Insight
DOSSIER · 13F Holders · Q1 2026

SPACSPHERE ACQUISITION CORP

27 institutions still hold SPACSPHERE ACQUISITION CORP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G8T088109·27 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$90M
visible holders
Holders
27
filers reporting
Concentration
16.32%
Polar Asset Management Partners Inc. #1
top holder share
AI Holders Summary · Q1 2026

27 institutions reported SPACSPHERE ACQUISITION CORP in Q1 2026. Polar Asset Management Partners Inc. leads at 16.3% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Polar Asset Management Partners Inc.
CIK 0001326389
$15M1.5M0.29%Q1 202602
HIGHBRIDGE CAPITAL MANAGEMENT LLC
CIK 0000919185
$14M1.4M0.45%Q1 202603
Karpus Management, Inc.
CIK 0001048703
$12M1.2M0.38%Q1 202604
BERKLEY W R CORP
CIK 0000011544
$6M573K0.30%Q1 202605
MIZUHO SECURITIES USA LLC
CIK 0000812291
$5M492K0.11%Q2 202606
LINDEN ADVISORS LP
CIK 0001279396
$4M450K0.02%Q1 202607
MANGROVE PARTNERS IM, LLC
CIK 0001535392
$4M450K0.36%Q1 202608
Shaolin Capital Management LLC
CIK 0001766806
$4M400K0.15%Q1 202609
RIVERNORTH CAPITAL MANAGEMENT, LLC
CIK 0001447578
$3M350K0.17%Q1 202610
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$3M337K0.03%Q1 202611
METEORA CAPITAL, LLC
CIK 0001905106
$3M317K0.23%Q1 202612
GLAZER CAPITAL, LLC
CIK 0001076809
$3M295K0.06%Q1 202613
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$3M272K0.00%Q1 202614
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$2M229K0.00%Q1 202615
WHITEBOX ADVISORS LLC
CIK 0001257391
$2M212K0.03%Q1 202616
Hudson Bay Capital Management LP
CIK 0001393825
$2M200K0.01%Q1 202617
Parallax Volatility Advisers, L.P.
CIK 0001521001
$2M162K0.00%Q1 202618
PERISCOPE CAPITAL INC.
CIK 0001695320
$1M125K0.14%Q1 202619
Schonfeld Strategic Advisors LLC
CIK 0001665241
$990K100K0.01%Q1 202620
Radcliffe Capital Management, L.P.
CIK 0001218275
$743K75K0.06%Q1 2026
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