HolderBook

SPACSPHERE ACQUISITION CORP (SSAC)

Institutional ownership reported to the SEC as of Q2 2026, across 2 quarters.

39
Reporting holders
$146.0M
Reported value
80.4%
Of shares outstanding
0.0%
Calls
0.0%
Puts
+7
Holder change

Institutions report 14,633,761 shares against 18,200,849 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Share count carried from an earlier filing (cy2026q1i).

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
MIZUHO SECURITIES USA LLC$14.9M1,504,0750.14%2q+206.0%+$10.0M
Polar Asset Management Partners Inc.$14.9M1,490,0000.24%2qHELD
HIGHBRIDGE CAPITAL MANAGEMENT LLC$14.2M1,425,0000.35%2q+2.5%+$348.1K
Karpus Management, Inc.$12.5M1,248,8750.36%2q+2.6%+$316.0K
WOLVERINE ASSET MANAGEMENT LLC$11.6M1,163,2300.10%2q+245.0%+$8.2M
Crossingbridge Advisors, LLC$8.4M845,1121.49%newNEW
BERKLEY W R CORP$7.7M768,9830.37%2q+34.1%+$2.0M
D. E. Shaw & Co., Inc.$5.2M517,0000.00%2qHELD
GLAZER CAPITAL, LLC$5.1M509,5890.13%2q+72.7%+$2.1M
Westchester Capital Management, LLC$5.0M500,0000.24%newNEW
Linden Advisors LP$4.5M450,0000.02%2qHELD
MANGROVE PARTNERS IM, LLC$4.5M450,0000.30%2qHELD
ARISTEIA CAPITAL, L.L.C.$4.0M402,4000.05%newNEW
RIVERNORTH CAPITAL MANAGEMENT, LLC$3.5M350,0000.17%2qHELD
SONA ASSET MANAGEMENT (US) LLC$3.5M350,0000.07%newNEW
Magnetar Financial LLC$3.0M300,0000.03%newNEW
Shaolin Capital Management LLC$2.7M272,1690.13%2q-32.0%-$1.3M
TWO SIGMA INVESTMENTS, LP$2.7M271,8750.00%2qHELD
Clear Street Group Inc.$2.5M249,4040.01%2q+277.1%+$1.8M
BNP PARIBAS FINANCIAL MARKETS$2.3M229,3560.00%2qHELD
WHITEBOX ADVISORS LLC$2.1M212,0430.03%2qHELD
Hudson Bay Capital Management LP$2.0M200,0000.01%2qHELD
Ghisallo Capital Management LLC$2.0M200,0000.04%newNEW
AQR Arbitrage LLC$1.7M172,9920.02%2q+1.4%+$23.5K
Periscope Capital Inc.$1.2M125,0000.11%2qHELD
TORONTO DOMINION BANK$998.0K100,0000.00%2q+218.5%+$684.7K
Radcliffe Capital Management, L.P.$748.5K75,0000.06%2qHELD
MMCAP International Inc. SPC$499.0K50,0000.04%newNEW
Virtu Financial LLC$328.0K32,8160.01%newNEW
Kepos Capital LP$299.0K30,0000.41%2qHELD
GEODE CAPITAL MANAGEMENT, LLC$295.7K29,6280.00%2qHELD
TrueMark Investments, LLC$254.9K25,5380.03%2q-1.8%-$4.6K
HEIGHTS CAPITAL MANAGEMENT, INC$249.5K25,0000.06%newNEW
Tuttle Capital Management, LLC$199.6K20,0000.13%newNEW
Schonfeld Strategic Advisors LLC$163.2K16,3570.00%2q-83.6%-$834.8K
SUSQUEHANNA INTERNATIONAL GROUP, LLP$102.2K10,2410.00%newNEW
L1 Global Manager Pty Ltd$99.8K10,0000.07%2qHELD
UBS Group AG$20.4K2,0460.00%newNEW
MORGAN STANLEY$319320.00%2q+300.0%

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-10-0613G/AWolverine Asset Management, LLCwith 3 co-filers5.2%
2026-09-0413G/AKARPUS MANAGEMENT, INC. SPAC5.0%
2026-08-1313GMizuho Financial Group, Inc. SPAC5.5%

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q2 202639$146.0M14,633,761121030.0%
Q1 202632$105.3M10,638,12532000.0%