Transaction · 0001213900-26-104721

Chen Yun

Chen Yun, 10%, reported a transaction classified as other at BEST SPAC I Acquisition Corp. involving 277000.000000 shares. Reported holdings after the transaction were 0.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

otherSEC transaction code J10%
BSAABEST SPAC I Acquisition Corp.
Filing timeSep 29
Trade dateSep 29, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position tradedUnavailableNot calculated for derivative securities.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
—
Pre-filing
1mo ago1w ago1d ago
Returns since
7d30d90d180d1y

BSAA price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
BSAA since 2026-09-29Filed yesterday · 1 day of post-filing data
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Derivative
Type
other
Code J
Identifier
0001213900-26-104721
Rights to receive Class A ordinary shares
Transaction date
Sep 29, 2026
Filed Sep 29, 2026, 08:45 PM · 0d delay
Shares
277k sh
Price unknown
Estimated value
—
Computed from shares × price
Holdings after
0 sh
Indirect · See Footnote

Filing warnings

Notes recorded with this filing
2 warnings
missing priceThe filing did not provide a usable price per share.
ambiguous transaction codeThe transaction code is missing or represents other activity; review the filing and footnotes.

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Derivative Transaction
-20score
Filing-only score

-20

Compact filing score computed from stored Form 4 facts. Version v1.

Low filing signal

This filing has a meaningfully negative filing-only score. It is likely less useful as a positive insider-activity signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector No10% YesOther No
Footnotes & amended
  1. F1

    On September 29, 2026, Naoda Investments Limited, of which Mr. Yun Chen serves as the sole director, sold 100% of its interests in BEST SPAC I (Holdings) Corp., the sponsor of BEST SPAC I Acquisition…

  2. F2

    The Class B ordinary shares will automatically convert into Class A ordinary shares at the time of the Issuer's initial business combination, or earlier at the option of the holder, on a one-for-one b…

  3. F3

    Each holder of a right will receive one-tenth (1/10) of one Class A ordinary share upon consummation of the Issuer's initial business combination. The rights will expire worthless if the Issuer does n…

Original filing · 0001213900-26-104721
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