Security Snapshot

SPACSphere Acquisition Corp. - Common Shares (SSAC) Institutional Ownership

CUSIP: G8T088109

13F Institutional Holders and Ownership History from Q1 2026 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

39

Shares (Excl. Options)

14,142,253

Price

$9.98

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
+3,504,128
Value change
+$35,041,795
Number of holders
39
Issuer context Names, identifiers, and filing context for this profile. 2 identity fields
Shares outstanding
18,410,309
SEC-reported price per share
$9.98
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • SSAC - SPACSphere Acquisition Corp. - Common Shares is tracked under CUSIP G8T088109.
  • 39 institutions reported positions in Q2 2026.
  • 1 significant owner is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 32 to 39 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $105,281,703 to $141,137,705.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 39 institutions filings for Q2 2026.

Open SEC evidence

Security key

G8T088109

Latest holder period

Q2 2026

13F holders

39

13D/G owners

1

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
1
Security
SSAC
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
MIZUHO FINANCIAL GROUP INC 5.5% $10,105,419 1,012,567 Mizuho Financial Group, Inc. 30 Jun 2026

As of 30 Jun 2026, 39 institutional investors reported holding 14,142,253 shares of SPACSphere Acquisition Corp. - Common Shares (SSAC). This represents 77% of the company’s total 18,410,309 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
74%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Polar Asset Management Partners Inc. 8.1% 1,490,000 0% 0.27% $14,870,200
HIGHBRIDGE CAPITAL MANAGEMENT LLC 7.7% 1,425,000 +2.5% 0.48% $14,221,500
Karpus Management, Inc. 6.8% 1,248,875 +2.6% 0.36% $12,463,773
WOLVERINE ASSET MANAGEMENT LLC 6.3% 1,163,230 +245% 0.15% $11,609,035
MIZUHO SECURITIES USA LLC 5.5% 1,012,567 +106% 0.15% $10,075,042
Crossingbridge Advisors, LLC 4.6% 845,112 1.5% $8,434,218
BERKLEY W R CORP 4.2% 768,983 +34% 0.39% $7,674,450
D. E. Shaw & Co., Inc. 2.8% 517,000 0% 0% $5,159,660
GLAZER CAPITAL, LLC 2.8% 509,589 +73% 0.13% $5,086,000
Westchester Capital Management, LLC 2.7% 500,000 0.25% $4,990,000
MANGROVE PARTNERS IM, LLC 2.4% 450,000 0% 0.3% $4,491,000
Linden Advisors LP 2.4% 450,000 0% 0.02% $4,491,000
ARISTEIA CAPITAL, L.L.C. 2.2% 402,400 0.06% $4,015,952
RIVERNORTH CAPITAL MANAGEMENT, LLC 1.9% 350,000 0% 0.17% $3,521,000
SONA ASSET MANAGEMENT (US) LLC 1.9% 350,000 0.13% $3,493,000
Magnetar Financial LLC 1.6% 300,000 0.03% $2,994,000
Shaolin Capital Management LLC 1.5% 272,169 -32% 0.25% $2,716,247
TWO SIGMA INVESTMENTS, LP 1.5% 271,875 0% 0% $2,713,313
Clear Street Group Inc. 1.4% 249,404 +277% 0.01% $2,489,052
BNP PARIBAS FINANCIAL MARKETS 1.2% 229,356 0% 0% $2,288,973
WHITEBOX ADVISORS LLC 1.2% 212,043 0% 0.03% $2,116,189
Hudson Bay Capital Management LP 1.1% 200,000 0% 0.01% $1,996,000
Ghisallo Capital Management LLC 1.1% 200,000 0.04% $1,996,000
AQR Arbitrage LLC 0.94% 172,992 +1.4% 0.02% $1,726,460
Periscope Capital Inc. 0.68% 125,000 0% 0.2% $1,247,500

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
2
Latest
Q2 2026
Rows shown
1-2 of 2
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 14,142,253 $141,137,705 +$35,041,795 $9.98 39
2026 Q1 10,638,125 $105,281,703 +$103,011,079 $9.90 32
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