Security Snapshot

BEST SPAC I Acquisition Corp. - Class A Ordinary Shares, no par value (BSAA) Institutional Ownership

CUSIP: G1069P103

13F Institutional Holders and Ownership History from Q3 2025 to Q2 2026

13F reference period

Q2 2026

Institutions Reporting

5

Shares (Excl. Options)

553.04KFull value: 553,041 · shares · 30 Jun 2026

Price

$11.86

The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.

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Security type / class
Equity / Class A Ordinary Shares, no par value
Symbol
BSAA on Nasdaq
All holders as of 30 Jun 2026
Q2 2026
Total 13F shares
553,041
Latest holder snapshot 5 signals
Total 13F value
$5,626,725
Portfolio coverage rank
0%
Share change
-3,754,980
Value change
-$38,753,905
Number of holders
5
Security identity Names, identifiers, and filing context for this profile. 1 source field
Underlying class
Class A ordinary shares
Issuer context Names, identifiers, and filing context for this profile. 2 identity fields
Shares outstanding
2,065,000
SEC-reported price per share
$10.90
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • BSAA - BEST SPAC I Acquisition Corp. - Class A Ordinary Shares, no par value is tracked under CUSIP G1069P103.
  • 5 institutions reported positions in Q2 2026.
  • 2 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 29 to 5 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from
    $44.51MFull value: $44,505,121 · USD · 31 Mar 2026
    to
    $5.63MFull value: $5,626,725 · USD · 30 Jun 2026
    .

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 5 institutions filings for Q2 2026.

Open SEC evidence

Security key

G1069P103

13F reference period

Q2 2026

13F holders

5

13D/G owners

2

CIK / CUSIP context first

Open Q2 2026 holders BSAA full holder history BEST SPAC I Acquisition Corp. SEC filings BEST SPAC I Acquisition Corp. company facts BEST SPAC I Acquisition Corp. insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

13D/G owners

Significant owners

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

Rows
2
Security
BSAA
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BEST SPAC I (Holdings) Corp. 22% 1,652,000 BEST SPAC I (Holdings) Corp. 30 Jul 2025
Tsang Claudius 80% $18,304,160 1,652,000 Tsang Claudius 29 Sep 2026
As of 30 Jun 2026, 5 institutional investors reported holding
553.04KFull value: 553,041 · shares · 30 Jun 2026
shares of BEST SPAC I Acquisition Corp. - Class A Ordinary Shares, no par value (BSAA). This represents 27% of the company’s total
2.07MFull value: 2,065,000 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

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

Top holder share
27%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
MIZUHO SECURITIES USA LLC 26% 533,699 0% 0.08% $5,401,034
SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.7% 14,437 +3.7% 0% $167,469
UBS Group AG 0.22% 4,480 +38% 0% $53,178
Clear Street Group Inc. 0.02% 397 -100% 0% $4,712
MORGAN STANLEY 0% 28 -18% 0% $332
WOLVERINE ASSET MANAGEMENT LLC 0% 0 -100% $0
Dakota Wealth Management 0% 0 -100% $0
RLH Capital LLC 0% 0 -100% $0
Centiva Capital, LP 0% 0 -100% $0
L1 Global Manager Pty Ltd 0% 0 -100% $0
BERKLEY W R CORP 0% 0 -100% $0
TORONTO DOMINION BANK 0% 0 -100% $0
Karpus Management, Inc. 0% 0 -100% $0
ARISTEIA CAPITAL, L.L.C. 0% 0 -100% $0
HEIGHTS CAPITAL MANAGEMENT, INC 0% 0 -100% $0
AQR Arbitrage LLC 0% 0 -100% $0
Radcliffe Capital Management, L.P. 0% 0 -100% $0
MMCAP International Inc. SPC 0% 0 -100% $0
Polar Asset Management Partners Inc. 0% 0 -100% $0
Hudson Bay Capital Management LP 0% 0 -100% $0
RIVERNORTH CAPITAL MANAGEMENT, LLC 0% 0 -100% $0
Westchester Capital Management, LLC 0% 0 -100% $0
BOOTHBAY FUND MANAGEMENT, LLC 0% 0 -100% $0
Shaolin Capital Management LLC 0% 0 -100% $0
Quarry LP 0% 0 -100% $0

Quarter history

Institutional holders across reporting periods

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

Periods
4
Headline period
Q2 2026
Rows shown
1-4 of 4
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 553,041 $5,626,725 -$38,753,905 $11.86 5
2026 Q1 4,348,667 $44,505,121 +$184,903 $10.26 29
2025 Q4 4,287,077 $43,348,861 +$7,406,824 $10.13 28
2025 Q3 3,505,372 $35,147,655 +$32,774,928 $10.05 19
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