NasdaqConsumer DiscretionaryServices-Educational ServicesHONG KONG, Hong KongPrimary ticker: BSAA

BEST SPAC I Acquisition Corp. BSAAU

BSAAU is a BEST SPAC I Acquisition Corp. unit listed on Nasdaq. Its price is shown below; holders, insider trades and filings are for the company. The company’s common stock is BSAA →

CIK 2051587

Insider trades, 12 mo

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No open-market trades

Congress trades, 24 mo

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No disclosed trades

13F holders, Q2 2026

2.0% of shares · 0 added

13F holders

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Lobbying, 12 mo

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No lobbying filings

Federal contracts, 12 mo

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None matched

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Latest 10-Q

Q3 2026

What changed in BEST SPAC I Acquisition Corp.'s latest quarterly report, compared with the one before.

Filed Nov 5, 2026 · Quarter ended Sep 30, 2026

Compared with the 10-Q for the quarter ended Jun 30, 2026. Sections compared: management's discussion, risk factors, legal proceedings and controls and procedures.

Read the 10-Q on sec.gov ↗Filing index ↗

Latest 10-Q

What changed in BEST SPAC I Acquisition Corp.'s latest quarterly report, compared with the one before.

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Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

No open-market insider trades reported since Jun 16, 2025. Insiders have two business days to file.

Recent insider trades
Insider	Traded	Type	Value	Since trade
BEST SPAC I (Holdings) Corp. 10% owner	Jun 16, 2025 Form 4 ↗	Buy	— 277,000 sh	—

All BSAAU insider trades →Planned sales (Form 144): see notices

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

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13F holders

27,324 shares

3 funds report BSAAU. Values checked against market prices.

Reports for the quarter ending Sep 30, 2026 are still coming in (1 position so far, against 3 the quarter before), so we compare the two complete quarters before it.

Q2 2026. 0 new, 0 added to, 1 trimmed, 1 exited since Q1 2026.

Top 13F holders
#
1	Citadel Advisors LLC 13F ↗	25,000	$347.0K	unchanged
2	Clear Street Group Inc. 13F ↗	2,107	$25.3K	-98.8%
3	UBS Group AG 13F ↗	217	$2,344	unchanged

Download CSV Every fund that holds BSAAU, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

13F holders

Funds that report this stock, checked against market prices.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

No recent congressional trades for this company.

Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

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Lobbying

What BEST SPAC I Acquisition Corp. and its lobbying firms report each quarter.

No recent lobbying filings for this company.

Lobbying

What BEST SPAC I Acquisition Corp. and its lobbying firms report each quarter.

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Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

Funds holding the stock

Shares they report

Funds holding the stock by quarter

Q2 2025	34	—	4.87M	$48.8M
Q3 2025	13	-21	1.07M	$10.8M
Q4 2025	5	-8	314,731	$3.2M
Q1 2026	5	0	316,397	$3.3M
Q2 2026	3	-2	27,324	$374.6K
Q3 2026	1	-2	217	$2,365

Each point is a quarter-end, from Q2 2025 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.

Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.

The history follows the company's current CUSIP number (G1069P137). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q2 2025) can be later than the stock's first appearance in 13F reports.

Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.

A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

Ownership stakes11 in 12 mo 8-K events2 in 90 days PatentsNone on record Short interestFINRA · updated Oct 15 Planned insider salesNone in 12 mo Executive payNone on record Wikipedia attentionNone on record SEC enforcementNone on record IPO history1 registration Ownership stakes…8-K events…Patents…Short interest…Planned insider sales…Executive pay…Wikipedia attention…SEC enforcement…

About the company

The basics from the company’s SEC registration.

Legal name: BEST SPAC I Acquisition Corp.
Address: 701, 7/FLOOR, UNITED BUILDING, 17-19 JUBILEE STREET, HONG KONG, Hong Kong
Phone: 852-9828-3397
Fiscal year ends: Dec 31
Filer category: Non-accelerated filer, smaller reporting company, emerging growth company
Listed as: BSAA (Nasdaq), BSAAR (Nasdaq), BSAAU (Nasdaq)
Former names: BEST SPAC I Acquistion Corp. (until 2025)
SEC filings: All filings on SEC EDGAR ↗

About the company

The basics from the company’s SEC registration.

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Price of BSAAU, not of the company’s common stock

$10.50$0.00 (0.00%) Nov 13 close

1M3M1Y

Oct 13, 2026Low $10.50 · High $11.60Nov 13, 2026

Aug 13, 2026Low $10.41 · High $11.60Nov 13, 2026

Nov 13, 2025Low $10.12 · High $17.00Nov 13, 2026

Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. Where prices come from.

Live chart

Intraday and historical prices from TradingView. Quotes may be delayed.

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Information, not investment advice. Company matching is automatic; check the source before relying on one row.