$SSAC

$10.14 +$0.02 (0.2%) Close

$SSAC Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 18.2M shares outstanding

Who owns SSAC?

By type of holder

Institutions 90.4% Everyone else 9.6%

No insider has reported a holding in the last two years, so insiders are counted in "Everyone else".

Concentration Top 10 holders own 60.2%

Mizuho Securities USA LLC 8.3% · Polar Asset Management Partners Inc. 8.2%

Institutional ownership

90.4%

+4.9 pts vs last qtr

Institutional holders

-9 vs last qtr

Net shares bought

+896.8K

by institutions in Q2 2026

New / sold out

2 / 11

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Mizuho Securities USA LLC +1.0M
Crossingbridge Advisors, LLC +745.1K

Biggest sellers in Q2 2026

Lineage Point Capital LP SOLD OUT −570.0K
Meteora Capital, LLC SOLD OUT −316.7K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Spacsphere Acquisition Corp in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Spacsphere Acquisition Corp.

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years0% Under 1 year100%

Quarterly turnover

15.2%

of institutional shares changed hands

Top 10 managers, median time held

1 quarter

Super Investors

Investment managers reporting SSAC on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
MS Mizuho Securities USA LLC	1.5M	8.26%	+1.0M (+206.0%)	Q1 '26	0.1%
Shares held by quarter Peak holding1.5M (Q2'26) Change over 8 quarters+1.5M Share of the company8.260% Mizuho Securities USA LLC's full portfolio →
PA Polar Asset Management Partners Inc.	1.5M	8.19%	Unchanged	Q1 '26	0.2%
Shares held by quarter Peak holding1.5M (Q1'26) Change over 8 quarters+1.5M Share of the company8.190% Polar Asset Management Partners Inc.'s full portfolio →

Mizuho Securities USA LLC

1.5M

% of company

8.26%

Change vs last qtr

+1.0M (+206.0%)

Held since

Q1 '26

Polar Asset Management Partners Inc.

1.5M

% of company

8.19%

Change vs last qtr

Unchanged

Held since

Q1 '26

28 more super investors behind a free account

See every manager holding Spacsphere Acquisition Corp, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting SSAC on Form N-PORT; together they hold 0.9% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
RO RiverNorth Opportunities Fund Inc. Rivernorth Opportunities Fund Inc.	$998K	100.0K	0.55%	0.30%	June 30, 2026
TC TrueShares ConVequity ETF Elevation Series Trust	$248K	24.7K	0.14%	0.45%	July 31, 2026

RiverNorth Opportunities Fund Inc.

Rivernorth Opportunities Fund Inc.

Position value

$998K

% of company

0.55%

% of the fund

0.30%

As of

June 30, 2026

TrueShares ConVequity ETF

Elevation Series Trust

Position value

$248K

% of company

0.14%

% of the fund

0.45%

As of

July 31, 2026

2 more funds behind a free account

See every fund holding Spacsphere Acquisition Corp and how much of the fund the position is.

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