Reporting Owner Activity for Chenming Hu

Form 3/4/5 issuer positions and transaction evidence for this reporting owner.

Issuer positions

2

Largest position

ACM Research, Inc.

Disclosed value

$4.86M

Transaction activity

Available

SEC ownership signals 1 signal
Reporting-owner position snapshot

Estimated reporting-owner position value

$4.86M

Estimated from parsed Forms 3/4/5 when filings disclose enough holding data.

Parsed issuer positions

2

Distinct issuers connected to this reporting owner in parsed SEC filings.

Latest reporting-owner filing date

04 Sep 2025

Most recent owner-level filing date in the parsed SEC record.

How to read Forms 3/4/5 positions
  • Reported values are estimates from parsed SEC Forms 3/4/5 when the filing includes enough price and share data.
  • Treat this as a filing-backed position snapshot, not as a live ownership feed.
Identity 1 identity field
Location
Alamo, CA
SEC source record 1 source field
Latest reporting-owner signature
By: /s/ Michael Morehead, Attorney-in-Fact For: Chenming Hu
SEC evidence 1 source field
SEC filing history
Open SEC filing history

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Reported issuer positions for Chenming Hu

ACMR Forms 3/4/5

ACM Research, Inc.

Relationship
Director
Holdings value
$3,000,060
Past year net change
Change %
Report period
17 Mar 2025
AMBA Forms 3/4/5

AMBARELLA INC

Relationship
Director
Holdings value
$1,856,261
Past year net change
Change %
Report period
02 Sep 2025

Recent insider transactions for Chenming Hu

Sym Company Class Transaction % SEC-reported value SEC-reported price Shares Shares after Date Ownership
* marks a reported price that did not pass the local price check.
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