HolderBook

HORIZON SPACE ACQUSTN I CORP (HSPOF)

Institutional ownership reported to the SEC as of Q3 2025, across 11 quarters.

13
Reporting holders
$21.4M
Reported value
41.7%
Of shares outstanding
0.0%
Held as options
+1
Holder change

Institutions report 1,737,560 shares against 4,168,739 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 (cy2025q2i).

Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.

Holders

FilerValueShares Their book Held Change
MIZUHO SECURITIES USA LLC$4.6M375,2090.09%2qHELD
WOLVERINE ASSET MANAGEMENT LLC$4.5M365,6550.03%11qHELD
First Trust Capital Management L.P.$3.7M300,0000.24%9qHELD
Westchester Capital Management, LLC$3.7M297,0000.17%8qHELD
BERKLEY W R CORP$2.5M205,1290.15%9qHELD
Polar Asset Management Partners Inc.$1.8M150,0000.02%11qHELD
Quarry LP$212.9K17,2370.05%2q+2.0%+$4.2K
UBS Group AG$143.5K11,6490.00%7q-2.1%-$3.1K
TORONTO DOMINION BANK$123.2K10,0000.00%3q-39.0%-$78.6K
Clear Street Group Inc.$58.7K4,7640.00%newFIRST
Crossingbridge Advisors, LLC$7.8K6330.00%newNEW
PenderFund Capital Management Ltd.$3.3K2690.00%2q+417.3%+$2.7K
MORGAN STANLEY$185150.00%3q+50.0%

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
Q3 202513$21.4M1,737,5601320.0%
Q2 202512$20.9M1,744,4972130.0%
Q1 202511$21.0M1,772,6194120.0%
Q4 20248$21.2M1,851,5240260.0%
Q3 202421$57.2M5,070,5890570.0%
Q2 202424$56.7M5,132,5913720.0%
Q1 202424$54.1M4,971,2417260.0%
Q4 202326$59.3M5,532,4892360.0%
Q3 202328$59.7M5,651,8319750.0%
Q2 202326$52.6M5,062,3766250.0%
Q1 202321$52.0M5,089,19721000.0%