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HSPTU

Horizon Space Acquisition II Corp Units
HSPTU

Delisted

HSPTU was delisted on the 12th of June, 2026.

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7 hedge funds and large institutions have $16.5M invested in Horizon Space Acquisition II Corp Units in 2025 Q1 according to their latest regulatory filings, with 0 funds opening new positions, 1 increasing their positions, 2 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

50% less repeat investments, than reductions

Existing positions increased: 1 | Existing positions reduced: 2

67% less funds holding

Funds holding: 21 → 7 (-14)

71.87% less ownership

Funds ownership: 97.94% → 26.07% (-72%)

73% less capital invested

Capital invested by funds: $61.1M → $16.5M (-$44.6M)

100% less first-time investments, than exits

New positions opened: 0 | Existing positions closed: 13

Holders
7
Holders Change
-14
Holders Change %
-66.67%
% of All Funds
0.09%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
–
Increased
1
Reduced
2
Closed
13
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
UBS Group
UBS Group
Switzerland
+$1.01K

Top Sellers

Rank Fund Capital Flow
1
MSU
Mizuho Securities USA
New York
-$6.04M
2
ASM
ATW SPAC Management
New York
-$5.77M
3
BFM
Boothbay Fund Management
New York
-$5.77M
4
AA
AQR Arbitrage
Connecticut
-$5.53M
5
HCM
Highbridge Capital Management
New York
-$5.33M
Name Holding Trade Value Shares
Change 		Change in
Stake
RCM
1
Rivernorth Capital Management
Florida
$6.06M – – –
Hudson Bay Capital Management
2
Hudson Bay Capital Management
Connecticut
$4.07M – – –
GCWM
3
Graham Capital Wealth Management
District of Columbia
$2.92M -$47.4K -4,679 -2%
WAM
4
Wolverine Asset Management
Illinois
$2.29M – – –
UBS Group
5
UBS Group
Switzerland
$912K +$1.01K +100 +0.1%
HCM
6
Heights Capital Management
California
$204K – – –
CS
7
Clear Street
New York
$26.9K -$61.2K -6,050 -70%
MSU
8
Mizuho Securities USA
New York
– -$6.04M -603,771 Closed
ASM
9
ATW SPAC Management
New York
– -$5.77M -574,990 Closed
BFM
10
Boothbay Fund Management
New York
– -$5.77M -574,990 Closed
AA
11
AQR Arbitrage
Connecticut
– -$5.53M -550,000 Closed
HCM
12
Highbridge Capital Management
New York
– -$5.33M -530,000 Closed
PAMP
13
Polar Asset Management Partners
Ontario, Canada
– -$5.27M -525,000 Closed
HCI
14
Harraden Circle Investments
New York
– -$2.96M -295,000 Closed
Two Sigma Investments
15
Two Sigma Investments
New York
– -$2.18M -217,499 Closed
GCL
16
Glazer Capital LLC
New York
– -$2.04M -203,684 Closed
SCM
17
Shaolin Capital Management
Florida
– -$1.76M -175,000 Closed
FTCM
18
Fir Tree Capital Management
New York
– -$754K -75,000 Closed
WRBC
19
W.R. Berkley Corp
Connecticut
– -$571K -56,846 Closed
FTUS
20
Flow Traders U.S.
New York
– -$356K -35,500 Closed

HSPTU Hedge Fund Activity: Q1 2025 in Review

7 of the 7,459 institutional investors tracked by Wall St. Rank reported a position in Horizon Space Acquisition II Corp Units (HSPTU) for Q1 2025, worth a combined $16.5M — down 73% from $61.1M a quarter earlier.

Sellers outnumbered buyers: 13 funds closed out of HSPTU and 0 opened new positions — a net loss of 13 holders — while 2 trimmed existing stakes and 1 added.

The largest buyer was UBS Group, adding an estimated $1.01K. The largest seller was Mizuho Securities USA, exiting entirely with an estimated $6.04M sold.

  • 7 institutional investors held Horizon Space Acquisition II Corp Units (HSPTU) as of Q1 2025, down from 21 in Q4 2024.
  • Funds reported $16.5M of Horizon Space Acquisition II Corp Units stock for Q1 2025, down 73% quarter-over-quarter.
  • 0 funds opened new Horizon Space Acquisition II Corp Units positions in Q1 2025 and 13 closed out, a net change of -13 holders.
  • The largest Horizon Space Acquisition II Corp Units buyer in Q1 2025 was UBS Group, an estimated $1.01K added.
  • The largest Horizon Space Acquisition II Corp Units seller in Q1 2025 was Mizuho Securities USA, an estimated $6.04M sold.

Based on aggregated 13F filings for Q1 2025.