Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| ACM Research, Inc.ACMR · Entity 3926 | Director | March 17, 2025 | March 19, 2025 |
| AMBARELLA INCAMBA · Entity 4248 | Director | September 08, 2026 | September 10, 2026 |
| Fortinet, Inc.FTNT · Entity 2890 | Director | September 30, 2020 | October 01, 2020 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
ACM Research, Inc.
Report date March 17, 2025 · Filed March 19, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 100,002 |
Reported balance
After 2025-03-17 transaction · row 1
1 source rowRow 1 · 2025-03-17 · Sale · Disposed 163,308 · Balance 100,002 F1: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 11, 2024. |
Filing footnotes · ownership attribution and instrument terms
F1: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 11, 2024.
AMBARELLA INC
Report date September 08, 2026 · Filed September 10, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Ordinary SharesSEC Table I · non-derivative | Direct | 32,667 |
Reported balance
After 2026-09-08 transaction · row 1
1 source rowRow 1 · 2026-09-08 · Grant · Acquired 3,151 · Balance 32,667 F1: Effective as of September 8, 2026, the Board of Directors approved an annual restricted stock unit grant of 3,151 Ordinary Shares to each independent director. The RSU grant vests as to 1/4th of the Ordinary Shares each three months following the vesting start date of September 15, 2026, so as to be 100% vested on September 15, 2027, subject to continued service with the Company. |
Filing footnotes · ownership attribution and instrument terms
F1: Effective as of September 8, 2026, the Board of Directors approved an annual restricted stock unit grant of 3,151 Ordinary Shares to each independent director. The RSU grant vests as to 1/4th of the Ordinary Shares each three months following the vesting start date of September 15, 2026, so as to be 100% vested on September 15, 2027, subject to continued service with the Company.
Fortinet, Inc.
Report date September 30, 2020 · Filed October 01, 2020
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 2,580 |
Reported balance
After 2020-09-30 transaction · row 1
1 source rowRow 1 · 2020-09-30 · Exercise / conversion · Acquired 448 · Balance 2,580 F1: Vesting of restricted stock units ("RSUs") granted to the Reporting Person on August 20, 2020. |
| Restricted Stock UnitsSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 | Direct | 1,344 |
Reported balance
After 2020-09-30 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2020-09-30 · Exercise / conversion · Disposed 448 · Balance 1,344 F2: Each RSU represents a contingent right to receive one share of the Issuer's common stock. F1: Vesting of restricted stock units ("RSUs") granted to the Reporting Person on August 20, 2020. F3: The RSUs will vest in substantially equal increments on each of September 30, 2020, December 31, 2020, March 31, 2021, and the earlier of (i) June 30, 2021 and (ii) the date immediately preceding the Issuer's 2021 annual meeting of shareholders, subject to the Reporting Person's provision of services to the Issuer on each vesting date. Shares of the Issuer's Common Stock will be delivered to the Reporting Person following vesting. F4: RSUs do not expire; they either vest or are canceled prior to vest date. |
Filing footnotes · ownership attribution and instrument terms
F1: Vesting of restricted stock units ("RSUs") granted to the Reporting Person on August 20, 2020.
F2: Each RSU represents a contingent right to receive one share of the Issuer's common stock.
F3: The RSUs will vest in substantially equal increments on each of September 30, 2020, December 31, 2020, March 31, 2021, and the earlier of (i) June 30, 2021 and (ii) the date immediately preceding the Issuer's 2021 annual meeting of shareholders, subject to the Reporting Person's provision of services to the Issuer on each vesting date. Shares of the Issuer's Common Stock will be delivered to the Reporting Person following vesting.
F4: RSUs do not expire; they either vest or are canceled prior to vest date.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
INPHI Corp
Report date April 20, 2021 · Filed April 20, 2021
Section 16 reporting ended · disclosed 2021-04-20. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 1,478 |
Reported balance
After 2021-04-20 transaction · row 1
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 1 · 2021-04-20 · Disposition to issuer · Disposed 65,503 · Balance 1,478 F1: On April 20, 2021, pursuant to the Agreement and Plan of Merger and Reorganization, dated as of October 29, 2020 (the "Merger Agreement") by and among by and among Marvell Technology Group Ltd., a Bermuda exempted company ("Marvell"), Marvell Technology, Inc. (f/k/a Maui HoldCo, Inc.), a Delaware corporation and a wholly owned subsidiary of Marvell ("HoldCo"), Maui Acquisition Company Ltd, a Bermuda exempted company and a wholly owned subsidiary of HoldCo ("Bermuda Merger Sub"), Indigo Acquisition Corp., a Delaware corporation and a wholly owned subsidiary of HoldCo ("Delaware Merger Sub"), and Inphi Corporation, a Delaware corporation ("Inphi"), Bermuda Merger Sub merged with and into Marvell with Marvell as the surviving corporation and a wholly owned subsidiary of Holdco (the "Bermuda Merger"), F2: (continued from footnote 1) and Delaware Merger Sub merged with and into Inphi with Inphi as the surviving corporation and a wholly owned subsidiary of Holdco (the "Delaware Merger" and, together with the Bermuda Merger, the "Mergers"). At the effective time of the Mergers, the shares of Inphi Common Stock (the "Inphi Common Stock") were disposed pursuant to the Merger Agreement, whereby the outstanding Inphi Common Stock were automatically converted into the right to receive 2.323 shares of HoldCo Common Stock and $66.00 in cash, without interest (in addition to cash in lieu of fractional shares). |
| Common StockSEC Table I · non-derivative | Direct | 0 |
Reported balance
After 2021-04-20 transaction · row 2
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 2 · 2021-04-20 · Disposition to issuer · Disposed 1,478 · Balance 0 F3: Per the terms of the Merger Agreement, 1,478 RSUs that were outstanding and vested immediately prior to the effective time of the Mergers were cancelled in exchange for (subject to applicable withholding or other taxes), (i) an amount of cash equal to the product of (A) $66.00, multiplied by (B) the total number of shares of Inphi Common Stock subject to such RSU, and (ii) a number of shares of HoldCo Common Stock equal to the product of (A) 2.323, multiplied by (B) the total number of shares of Inphi Common Stock subject to such RSU. |
Filing footnotes · ownership attribution and instrument terms
F1: On April 20, 2021, pursuant to the Agreement and Plan of Merger and Reorganization, dated as of October 29, 2020 (the "Merger Agreement") by and among by and among Marvell Technology Group Ltd., a Bermuda exempted company ("Marvell"), Marvell Technology, Inc. (f/k/a Maui HoldCo, Inc.), a Delaware corporation and a wholly owned subsidiary of Marvell ("HoldCo"), Maui Acquisition Company Ltd, a Bermuda exempted company and a wholly owned subsidiary of HoldCo ("Bermuda Merger Sub"), Indigo Acquisition Corp., a Delaware corporation and a wholly owned subsidiary of HoldCo ("Delaware Merger Sub"), and Inphi Corporation, a Delaware corporation ("Inphi"), Bermuda Merger Sub merged with and into Marvell with Marvell as the surviving corporation and a wholly owned subsidiary of Holdco (the "Bermuda Merger"),
F2: (continued from footnote 1) and Delaware Merger Sub merged with and into Inphi with Inphi as the surviving corporation and a wholly owned subsidiary of Holdco (the "Delaware Merger" and, together with the Bermuda Merger, the "Mergers"). At the effective time of the Mergers, the shares of Inphi Common Stock (the "Inphi Common Stock") were disposed pursuant to the Merger Agreement, whereby the outstanding Inphi Common Stock were automatically converted into the right to receive 2.323 shares of HoldCo Common Stock and $66.00 in cash, without interest (in addition to cash in lieu of fractional shares).
F3: Per the terms of the Merger Agreement, 1,478 RSUs that were outstanding and vested immediately prior to the effective time of the Mergers were cancelled in exchange for (subject to applicable withholding or other taxes), (i) an amount of cash equal to the product of (A) $66.00, multiplied by (B) the total number of shares of Inphi Common Stock subject to such RSU, and (ii) a number of shares of HoldCo Common Stock equal to the product of (A) 2.323, multiplied by (B) the total number of shares of Inphi Common Stock subject to such RSU.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| December 18, 2017 Filed Dec 20, 2017 16:37 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionOrdinary Shares | 1,231 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001280263-17-000094 · edgardoc.xml · nonDerivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 30,411 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. Read SEC document |
| September 18, 2017 Filed Sep 20, 2017 16:17 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionRestricted Stock Units · Derivative | 726 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-17-000070 · edgardoc.xml · derivative · entry 2 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Ordinary Shares · 726 shares Expires 2017-09-15 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F2 · derivative.exercise_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2016, so as to be 100% vested on September 15, 2017. F2 · derivative.expiration_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2016, so as to be 100% vested on September 15, 2017. Read SEC document |
| September 18, 2017 Filed Sep 20, 2017 16:17 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionOrdinary Shares | 726 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001280263-17-000070 · edgardoc.xml · nonDerivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 29,180 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. Read SEC document |
| September 05, 2017 Filed Sep 7, 2017 17:32 UTC | AMBARELLA INC AMBA · Entity 4248 | GrantRestricted Stock Units · Derivative | 4,926 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-17-000057 · edgardoc.xml · derivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,926 Underlying: Ordinary Shares · 4,926 shares Expires 2018-09-15 F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F2 · derivative.exercise_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2017, so as to be 100% vested on September 15, 2018. F2 · derivative.expiration_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2017, so as to be 100% vested on September 15, 2018. Read SEC document |
| June 16, 2017 Filed Jun 20, 2017 17:04 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionRestricted Stock Units · Derivative | 726 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-17-000043 · edgardoc.xml · derivative · entry 2 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 726 Underlying: Ordinary Shares · 726 shares Expires 2017-09-15 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F2 · derivative.exercise_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2016, so as to be 100% vested on September 15, 2017. F2 · derivative.expiration_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2016, so as to be 100% vested on September 15, 2017. Read SEC document |
| June 16, 2017 Filed Jun 20, 2017 17:04 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionOrdinary Shares | 726 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001280263-17-000043 · edgardoc.xml · nonDerivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 28,454 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. Read SEC document |
| May 26, 2017 Filed May 31, 2017 11:37 UTC | INPHI Corp IPHI · Entity 140160 | GrantCommon Stock | 3,328 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-17-010370 · rdgdoc.xml · nonDerivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 83,339 F1 · shares: The restricted stock units will vest 100% of the shares on the earlier of (a) the first anniversary of the date of grant or (b) immediately preceding the issuer's next annual meeting of stockholders. Read SEC document |
| March 16, 2017 Filed Mar 17, 2017 18:03 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionRestricted Stock Units · Derivative | 726 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-17-000018 · edgardoc.xml · derivative · entry 2 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,452 Underlying: Ordinary Shares · 726 shares Expires 2017-09-15 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F2 · derivative.exercise_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2016, so as to be 100% vested on September 15, 2017. F2 · derivative.expiration_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2016, so as to be 100% vested on September 15, 2017. Read SEC document |
| March 16, 2017 Filed Mar 17, 2017 18:03 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionOrdinary Shares | 726 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001280263-17-000018 · edgardoc.xml · nonDerivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 27,728 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. Read SEC document |
| December 16, 2016 Filed Dec 16, 2016 19:17 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionRestricted Stock Units · Derivative | 726 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-16-000236 · edgardoc.xml · derivative · entry 2 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,178 Underlying: Ordinary Shares · 726 shares Expires 2017-09-15 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F2 · derivative.exercise_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2016, so as to be 100% vested on September 15, 2017. F2 · derivative.expiration_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2016, so as to be 100% vested on September 15, 2017. Read SEC document |
| December 16, 2016 Filed Dec 16, 2016 19:17 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionOrdinary Shares | 726 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001280263-16-000236 · edgardoc.xml · nonDerivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 27,002 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. Read SEC document |
| November 29, 2016 Filed Jan 11, 2017 12:58 UTC | INPHI Corp IPHI · Entity 140160 | GiftCommon Stock | 3,600 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-17-000514 · rdgdoc.xml · nonDerivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 80,011 Read SEC document |
| September 16, 2016 Filed Sep 20, 2016 17:07 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionRestricted Stock Units · Derivative | 1,153 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-16-000208 · edgardoc.xml · derivative · entry 2 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Ordinary Shares · 1,153 shares Expires 2016-09-15 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F2 · derivative.exercise_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2015, so as to be 100% vested on September 15, 2016. F2 · derivative.expiration_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2015, so as to be 100% vested on September 15, 2016. Read SEC document |
| September 16, 2016 Filed Sep 20, 2016 17:07 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionOrdinary Shares | 1,153 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001280263-16-000208 · edgardoc.xml · nonDerivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 26,276 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. Read SEC document |
| September 06, 2016 Filed Sep 8, 2016 19:12 UTC | AMBARELLA INC AMBA · Entity 4248 | GrantRestricted Stock Units · Derivative | 2,904 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-16-000191 · edgardoc.xml · derivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,904 Underlying: Ordinary Shares · 2,904 shares Expires 2017-09-15 F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F2 · derivative.exercise_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2016, so as to be 100% vested on September 15, 2017. F2 · derivative.expiration_date: The restricted stock units will vest as to 1/4th of the restricted stock units each three months following the vesting start date of September 15, 2016, so as to be 100% vested on September 15, 2017. Read SEC document |
| May 18, 2011 Filed Feb 6, 2018 14:38 UTC Amendment | INPHI Corp IPHI · Entity 140160 | GrantCommon Stock | 3,982 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-18-001801 · rdgdoc.xml · nonDerivative · entry 1 Hu Chenming · CIK 0001316320 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,124 Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.