- Corporate Officers - H
- Hu Chenming
Insider Trading History of Hu Chenming
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Hu Chenming since 2011.
This trader's CIK number is 1316320.
At the time of last reporting, Hu Chenming was the Officer of Acm Research, Inc.. (stock ticker symbol ACMR).
Also see all insider trading activities at Acm Research, Inc..
Note that in the past
Hu Chenming also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Inphi Corp (IPHI) by Hu Chenming
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2019 | IPHI | 0 | $0 | 7,000 | $497,000 | 0 | $0 |
| 2011 | IPHI | 34,600 | $297,530 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Ambarella Inc (AMBA) by Hu Chenming
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2023 | AMBA | 0 | $0 | 0 | $0 | 779 | $0 |
| 2022 | AMBA | 0 | $0 | 0 | $0 | 1,910 | $0 |
| 2021 | AMBA | 0 | $0 | 11,666 | $1,626,560 | 2,294 | $0 |
| 2020 | AMBA | 0 | $0 | 15,818 | $1,255,334 | 4,644 | $11,108 |
| 2019 | AMBA | 0 | $0 | 10,000 | $630,000 | 4,793 | $0 |
| 2018 | AMBA | 0 | $0 | 0 | $0 | 5,007 | $0 |
| 2017 | AMBA | 0 | $0 | 0 | $0 | 3,409 | $0 |
| 2016 | AMBA | 0 | $0 | 0 | $0 | 5,338 | $0 |
| 2015 | AMBA | 0 | $0 | 15,000 | $1,668,990 | 34,345 | $362,005 |
| 2014 | AMBA | 0 | $0 | 0 | $0 | 2,083 | $0 |
| 2013 | AMBA | 0 | $0 | 0 | $0 | 1,389 | $0 |
Yearly summary of insider trading at Acm Research, Inc. (ACMR) by Hu Chenming
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | ACMR | 0 | $0 | 163,308 | $4,899,240 | 0 | $0 |
| 2021 | ACMR | 0 | $0 | 10,000 | $1,200,000 | 66,668 | $350,007 |
| 2020 | ACMR | 0 | $0 | 30,000 | $2,492,293 | 31,102 | $93,306 |
| 2018 | ACMR | 0 | $0 | 0 | $0 | 30,000 | $90,000 |
Yearly summary of insider trading at Sandisk Corp (SNDK) by Hu Chenming
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2013 | SNDK | 0 | $0 | 46,889 | $2,882,077 | 25,000 | $453,499 |
Yearly summary of insider trading at Fortinet, Inc. (FTNT) by Hu Chenming
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2020 | FTNT | 0 | $0 | 0 | $0 | 448 | $0 |
| 2015 | FTNT | 0 | $0 | 0 | $0 | 2,831 | $0 |
| 2014 | FTNT | 0 | $0 | 0 | $0 | 6,656 | $0 |
| 2013 | FTNT | 0 | $0 | 0 | $0 | 6,250 | $0 |
Insider trading activities at 5 companies by Hu Chenming:
1. Inphi Corp (IPHI)
2. Ambarella Inc (AMBA)
3. Acm Research, Inc. (ACMR)
4. Sandisk Corp (SNDK)
5. Fortinet, Inc. (FTNT)
Table 1. Insider trading of Inphi Corp (IPHI) by Hu Chenming
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2019-11-25 | IPHI | Sale | 7,000 | 71.00 | 497,000 |
| 2011-08-10 | IPHI | Buy | 11,700 | 8.50 | 99,450 |
| 2011-08-09 | IPHI | Buy | 15,000 | 8.68 | 130,140 |
| 2011-08-10 | IPHI | Buy | 7,900 | 8.60 | 67,940 |
Table 2. Insider trading of Ambarella Inc (AMBA) by Hu Chenming
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2023-03-15 | AMBA | Option Ex | 779 | .00 | 0 |
| 2022-12-16 | AMBA | Option Ex | 779 | .00 | 0 |
| 2022-09-16 | AMBA | Option Ex | 377 | .00 | 0 |
| 2022-06-16 | AMBA | Option Ex | 377 | .00 | 0 |
| 2022-03-16 | AMBA | Option Ex | 377 | .00 | 0 |
| 2021-12-16 | AMBA | Option Ex | 377 | .00 | 0 |
| 2021-09-22 | AMBA | Sale | 3,666 | 160.00 | 586,560 |
| 2021-09-16 | AMBA | Option Ex | 959 | .00 | 0 |
| 2021-09-09 | AMBA | Sale | 4,000 | 140.00 | 560,000 |
| 2021-09-01 | AMBA | Sale | 4,000 | 120.00 | 480,000 |
| 2021-03-16 | AMBA | Option Ex | 958 | .00 | 0 |
| 2020-12-16 | AMBA | Option Ex | 958 | .00 | 0 |
| 2020-12-03 | AMBA | Sale | 5,818 | 88.00 | 511,984 |
| 2020-11-27 | AMBA | Sale | 5,000 | 78.00 | 390,000 |
| 2020-11-24 | AMBA | Sale | 5,000 | 70.67 | 353,350 |
| 2020-09-16 | AMBA | Option Ex | 858 | .00 | 0 |
| 2020-06-23 | AMBA | Option Ex | 1,112 | 9.99 | 11,108 |
| 2020-06-16 | AMBA | Option Ex | 858 | .00 | 0 |
| 2020-03-17 | AMBA | Option Ex | 858 | .00 | 0 |
| 2019-12-17 | AMBA | Option Ex | 857 | .00 | 0 |
| 2019-09-30 | AMBA | Sale | 10,000 | 63.00 | 630,000 |
| 2019-09-17 | AMBA | Option Ex | 1,312 | .00 | 0 |
| 2019-06-18 | AMBA | Option Ex | 1,312 | .00 | 0 |
| 2019-03-19 | AMBA | Option Ex | 1,312 | .00 | 0 |
| 2018-12-18 | AMBA | Option Ex | 1,312 | .00 | 0 |
| 2018-09-18 | AMBA | Option Ex | 1,232 | .00 | 0 |
| 2018-06-18 | AMBA | Option Ex | 1,231 | .00 | 0 |
| 2018-03-16 | AMBA | Option Ex | 1,232 | .00 | 0 |
| 2017-12-18 | AMBA | Option Ex | 1,231 | .00 | 0 |
| 2017-09-18 | AMBA | Option Ex | 726 | .00 | 0 |
| 2017-06-16 | AMBA | Option Ex | 726 | .00 | 0 |
| 2017-03-16 | AMBA | Option Ex | 726 | .00 | 0 |
| 2016-12-16 | AMBA | Option Ex | 726 | .00 | 0 |
| 2016-09-16 | AMBA | Option Ex | 1,153 | .00 | 0 |
| 2016-06-16 | AMBA | Option Ex | 1,153 | .00 | 0 |
| 2016-06-16 | AMBA | Option Ex | 1,153 | .00 | 0 |
| 2016-03-16 | AMBA | Option Ex | 1,153 | .00 | 0 |
| 2015-12-16 | AMBA | Option Ex | 1,152 | .00 | 0 |
| 2015-10-08 | AMBA | Option Ex | 16,109 | 13.17 | 212,155 |
| 2015-09-16 | AMBA | Option Ex | 695 | .00 | 0 |
| 2015-06-16 | AMBA | Option Ex | 694 | .00 | 0 |
| 2015-06-09 | AMBA | Option Ex | 15,000 | 9.99 | 149,850 |
| 2015-06-09 | AMBA | Sale | 15,000 | 111.27 | 1,668,990 |
| 2015-03-17 | AMBA | Option Ex | 695 | .00 | 0 |
| 2014-12-16 | AMBA | Option Ex | 694 | .00 | 0 |
| 2014-06-16 | AMBA | Option Ex | 695 | .00 | 0 |
| 2014-03-17 | AMBA | Option Ex | 694 | .00 | 0 |
| 2013-12-16 | AMBA | Option Ex | 695 | .00 | 0 |
| 2013-09-16 | AMBA | Option Ex | 694 | .00 | 0 |
Table 3. Insider trading of Acm Research, Inc. (ACMR) by Hu Chenming
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-03-17 | ACMR | Sale | 163,308 | 30.00 | 4,899,240 |
| 2021-05-04 | ACMR | Option Ex | 23,334 | 3.00 | 70,002 |
| 2021-03-30 | ACMR | Option Ex | 10,000 | 3.00 | 30,000 |
| 2021-03-08 | ACMR | Option Ex | 12,334 | 7.50 | 92,505 |
| 2021-03-04 | ACMR | Option Ex | 11,000 | 7.50 | 82,500 |
| 2021-03-02 | ACMR | Option Ex | 10,000 | 7.50 | 75,000 |
| 2021-02-12 | ACMR | Sale | 10,000 | 120.00 | 1,200,000 |
| 2020-09-08 | ACMR | Option Ex | 31,102 | 3.00 | 93,306 |
| 2020-08-03 | ACMR | Sale | 7,806 | 100.00 | 780,600 |
| 2020-07-13 | ACMR | Sale | 14,000 | 84.15 | 1,178,100 |
| 2020-06-03 | ACMR | Sale | 8,194 | 65.12 | 533,593 |
| 2018-08-30 | ACMR | Option Ex | 30,000 | 3.00 | 90,000 |
Table 4. Insider trading of Sandisk Corp (SNDK) by Hu Chenming
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2013-11-18 | SNDK | Sale | 22,889 | 69.44 | 1,589,389 |
| 2013-11-18 | SNDK | Option Ex | 22,889 | 18.14 | 415,206 |
| 2013-08-13 | SNDK | Option Ex | 2,111 | 18.14 | 38,293 |
| 2013-08-13 | SNDK | Sale | 12,000 | 58.00 | 696,000 |
| 2013-02-05 | SNDK | Sale | 12,000 | 49.72 | 596,688 |
Table 5. Insider trading of Fortinet, Inc. (FTNT) by Hu Chenming
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2020-09-30 | FTNT | Option Ex | 448 | .00 | 0 |
| 2015-05-08 | FTNT | Option Ex | 1,250 | .00 | 0 |
| 2015-02-13 | FTNT | Option Ex | 331 | .00 | 0 |
| 2015-02-08 | FTNT | Option Ex | 1,250 | .00 | 0 |
| 2014-11-13 | FTNT | Option Ex | 331 | .00 | 0 |
| 2014-11-08 | FTNT | Option Ex | 1,250 | .00 | 0 |
| 2014-08-13 | FTNT | Option Ex | 1,325 | .00 | 0 |
| 2014-08-08 | FTNT | Option Ex | 1,250 | .00 | 0 |
| 2014-05-08 | FTNT | Option Ex | 1,250 | .00 | 0 |
| 2014-02-08 | FTNT | Option Ex | 1,250 | .00 | 0 |
| 2013-11-08 | FTNT | Option Ex | 1,250 | .00 | 0 |
| 2013-08-08 | FTNT | Option Ex | 5,000 | .00 | 0 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above table cannot be completely guaranteed as to their accuracy.
For more information regarding the trades made by Hu Chenming
(Officer of Acm Research, Inc. at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.