Best Spac I Acquisition (BSAA): which funds own it
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Sections with a free account
No concentrated manager holds it.
Who owns Best Spac I Acquisition?
Holders that filed a Schedule 13D or 13G with the SEC for owning more than 5% of the Class A shares: Tsang Claudius (13D filed Sep 29, 2026) and BEST SPAC I (Holdings) (13G filed Aug 1, 2025). As of Jun 30, 2026, the largest holders of Class A reported on Form 13F were Mizuho Securities USA (8.9% of Class A), Susquehanna International Group, LLP (0.2%) and UBS Group (0.1%).
Which institutions hold the most Best Spac I Acquisition shares?
Per Form 13F filings as of Jun 30, 2026, as a share of Class A:
- 1. Mizuho Securities USA: 8.9%
- 2. Susquehanna International Group, LLP: 0.2%
- 3. UBS Group: 0.1%
- 4. Clear Street Group: 0.0%
- 5. Morgan Stanley: 0.0%
How much of Best Spac I Acquisition do institutions own?
The 5 institutions that file 13F reported 9.2% of the Class A shares as of Jun 30, 2026.
Sources:13D by Tsang Claudius (Sep 29, 2026) ↗13G by BEST SPAC I (Holdings) (Aug 1, 2025) ↗All of the company's proxy statements on EDGAR ↗
13F percentages divide the shares each institution reports by the Class A shares outstanding on the cover of the company's latest report before the quarter end (Apr 28, 2026). Entities of the same group file separately and are not added up. With more than one share class, a 13D or 13G counts shares convertible from another class as owned, so we do not show its percentage. We hold 13D and 13G filings made since Dec 23, 2024: a holder above 5% that has not filed since then does not appear here.
Quarter flow (concentrated managers)
Concentrated managers holding it
None in the latest quarter.
Largest holders of BSAA (all 13F filers)
- Mizuho Securities USA534 KBank or trading desk · 8.86% of the company0
- Susquehanna International Group, LLP14 KBank or trading desk · 0.24% of the company+520
- UBS Group4,480Bank or trading desk · 0.07% of the company+1,243
- Clear Street Group397Bank or trading desk · 0.01% of the company−165 K
- Morgan Stanley28Bank or trading desk · 0.00% of the company−6
- Shares
- 534 K
- Change
- 0
- % of the company
- 8.86%
See more
- Type
- Bank or trading desk
- Value
- $5.4M
- Shares
- 14 K
- Change
- +520
- % of the company
- 0.24%
See more
- Type
- Bank or trading desk
- Value
- $167K
- Shares
- 4,480
- Change
- +1,243
- % of the company
- 0.07%
See more
- Type
- Bank or trading desk
- Value
- $53.2K
- Shares
- 397
- Change
- −165 K
- % of the company
- 0.01%
See more
- Type
- Bank or trading desk
- Value
- $4.7K
- Shares
- 28
- Change
- −6
- % of the company
- 0.00%
See more
- Type
- Bank or trading desk
- Value
- $332
The 10 13F filers with the most shares as of Jun 30, 2026, whatever their type (index firms usually come first). “Change”: shares added or cut versus the previous quarter, split-adjusted; “no data” = there is no comparable portfolio for the previous quarter (no filing, or a filing with its holdings under confidential treatment). “% of the company” only where shares outstanding are up to date. Entities of the same group file separately and some 13F filings include other managers: there may be double counting. With a free account: the top 25, the largest buyers and the largest sellers.
Fundamentals
12-month figures to Jun 30, 2026 · balance sheet as of Jun 30, 2026.
- Operating margin
- —
- Net margin
- —
- ROE
- 120.1%
- Revenue (TTM)
- —
- Revenue growth
- —
- Net income (TTM)
- $1.2M
- Net debt / EBITDA
- —
- Free cash flow (TTM)
- —
- Quality vs sector
- —
This company's sector comes from its SIC code, unreviewed, or has too few comparable companies: we do not compare it with its sector.
Figures from the statements the company filed with the SEC (10-K, 10-Q). Free cash flow = operating cash flow − capital expenditures; empty if the company does not report capex. “Quality vs sector”: 0 to 100, the average of its percentiles in ROE, operating margin, free-cash-flow margin, revenue and earnings growth and net debt / EBITDA (at least 3 needed) against companies in its sector above $300M. How each figure is calculated
Earnings quality and debt
164.4% of net income does not come from operations.
- Operating cash flow ÷ net income (12 months)
- -0.49
- Interest coverage (operating income ÷ interest)
- no data
- Debt due within 12 months
- no data
From the figures the company filed with the SEC. Cash flow over net income near or above 1 means earnings are collected in cash; far below, that part is accounting. Coverage says how many times operating income pays the latest fiscal year's interest. Maturities come from the debt note of the latest annual report, counted from its closing date. “No data” never means zero.
Insiders (Form 4)
Open-market purchases, excluding 10b5-1 plans. Officers and directors only; joint filers of the same purchase count as one. 10% owners with no role are shown separately. 0 = nobody bought; “no data” = we do not have its Form 4 filings.
Each of the company's Form 4 filings, on EDGAR ↗Latest trades, with date and filing →
Above 5% (13D/13G)
Disclosed stakes, with their amendments. A filing is not always a purchase: there are also reductions and changes of filing entity.
This list may be incomplete: we hold 13D and 13G filings made since Dec 23, 2024. A holder above 5% that has not filed anything since then is not shown here.
Above 5% over time (13D/13G)
Each holder with its filings in order. History since December 2024.
Flagged material events (8-K)
Notice of delisting or failure to meet a listing rule (Item 3.01)
Alert items the company itself flagged in its 8-K filings with the SEC, most serious first. It is the form's label, with no interpretation from us: Item 5.02 covers routine appointments as well as a chief executive's departure; open the filing. The quoted headline is the original press release's.
All material events (8-K)
Earnings, agreements, financing, management changes and announcements from the last year, with a filter by type and a link to each filing.
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