Key facts
- This page summarizes Chi-Hong Ju's Form 4 filing for AMBARELLA INC (AMBA).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 18 Sep 2026, 16:50.
Chi-Hong Ju - 17 Sep 2026 Form 4 Insider Report for AMBARELLA INC (AMBA)
- Reporting relationship
- Senior VP, Systems & GM
- Issuer ticker
- AMBA
- Reported as of
- 17 Sep 2026
- Net transaction value
- -$130,243
- SEC form
- 4
- Accepted by SEC
- 18 Sep 2026, 16:50:46 UTC
- Prior SEC filing
- 02 Jul 2026
- Source filing
- View source filing
- Reporting owner signature
- By: /s/Michael Morehead, Attorney-in-Fact, For: Chi-Hong Ju
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Chi-Hong Ju filed Form 4 for AMBARELLA INC (AMBA) on 18 Sep 2026.
Change
- Previous filing in this sequence was filed on 02 Jul 2026.
- Current net transaction value: -$130,243.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001882831
Primary reporting owner
Ju Chi-Hong
- Relationship
- Senior VP, Systems & GM
- Address
- 3001 TASMAN DRIVE, SANTA CLARA
- Signature
- By: /s/Michael Morehead, Attorney-in-Fact, For: Chi-Hong Ju
- Signature date
- 18 Sep 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
AMBA
transaction
Ordinary Shares
Sale
- Transaction value
- $130,243
- Shares
- -2,009
- Change %
- -1.3%
- Price
- $64.83
- Shares after
- 154,153
- Date
- 17 Sep 2026
- Ownership
- Direct
- Footnotes
- F1, F2
AMBA
holding
Ordinary Shares
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 8,000
- Date
- 17 Sep 2026
- Ownership
- by Foundation
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 2 footnotes
Footnote F1
Shares sold to pay tax obligations resulting from the vesting of restricted stock units.
Footnote F2
Includes 238 shares acquired under the Company's employee stock purchase plan on September 15, 2026.