Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2021-12-20 Sale | 2021-12-20 5:43 pm | CMC Materials Inc. | CCMP | Li David H President and CEO | 20,150 | $184.4 | $3,715,696 | 104,544 (Direct) | View |
| 2021-03-04 Sale | 2021-03-08 10:28 am | CMC Materials Inc. | CCMP | Li David H President and CEO | 38,000 | $164.67 | $6,257,459 | 168,901 (Direct) | View |
| 2020-02-10 Sale | 2020-02-11 10:39 am | CABOT MICROELECTRONICS CORP | CCMP | Li David H President and CEO | 38,850 | $160.69 | $6,242,861 | 144,695 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2022-07-06 Disposition | 2022-07-06 3:37 pm | 2017-12-05 2026-12-05 | CMC Materials Inc. | CCMP | Li David H President and CEO | 274,619 | $0 | 0 (Direct) | View |
| 2022-07-06 Option Award | 2022-07-06 3:37 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 74,535 | $0 | 0 (Direct) | View |
| 2022-06-24 Option Award | 2022-06-27 12:09 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 65 | $0 | 73,743 (Direct) | View |
| 2022-05-31 Gift | 2022-06-01 5:42 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 20,000 | $0 | 73,678 (Direct) | View |
| 2021-12-31 Option Award | 2022-01-04 08:13 am | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 84 | $0 | 93,678 (Direct) | View |
| 2021-12-20 Exercise | 2021-12-20 5:43 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 20,150 | $60.27 | 104,544 (Direct) | View |
| 2021-12-20 Exercise | 2021-12-20 5:43 pm | 2017-12-05 2026-12-05 | CMC Materials Inc. | CCMP | Li David H President and CEO | 20,150 | $0 | 104,544 (Direct) | View |
| 2021-12-12 Tax Withholding | 2021-12-14 1:25 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 175 | $144.99 | 93,594 (Direct) | View |
| 2021-12-03 Tax Withholding | 2021-12-07 2:24 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 740 | $136.65 | 114,874 (Direct) | View |
| 2021-12-06 Option Award | 2021-12-07 2:24 pm | 2022-12-06 2031-12-06 | CMC Materials Inc. | CCMP | Li David H President and CEO | 28,685 | $0 | 114,874 (Direct) | View |
| 2021-12-05 Tax Withholding | 2021-12-07 2:24 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 2,204 | $141.18 | 114,874 (Direct) | View |
| 2021-11-17 Tax Withholding | 2021-11-18 09:18 am | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 4,543 | $145.45 | 89,133 (Direct) | View |
| 2021-11-17 Option Award | 2021-11-18 09:18 am | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 10,255 | $0 | 89,133 (Direct) | View |
| 2021-06-30 Option Award | 2021-07-01 1:05 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 86 | $123.39 | 83,421 (Direct) | View |
| 2021-03-04 Exercise | 2021-03-08 10:28 am | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 38,000 | $60.27 | 168,901 (Direct) | View |
| 2021-03-04 Exercise | 2021-03-08 10:28 am | 2017-12-05 2026-12-05 | CMC Materials Inc. | CCMP | Li David H President and CEO | 38,000 | $0 | 168,901 (Direct) | View |
| 2020-12-31 Option Award | 2021-01-04 1:40 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 94 | $112.72 | 83,335 (Direct) | View |
| 2020-12-15 Option Award | 2020-12-16 1:26 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 502 | $149.04 | 83,240 (Direct) | View |
| 2020-12-11 Tax Withholding | 2020-12-14 10:38 am | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 240 | $144.66 | 82,738 (Direct) | View |
| 2020-12-05 Tax Withholding | 2020-12-08 1:25 pm | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 4,287 | $154.13 | 82,978 (Direct) | View |
| 2020-12-03 Option Award | 2020-12-07 4:13 pm | 2021-12-03 2030-12-03 | CMC Materials Inc. | CCMP | Li David H President and CEO | 29,876 | $145.58 | 110,461 (Direct) | View |
| 2020-11-18 Tax Withholding | 2020-11-19 09:36 am | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 7,879 | $141.76 | 80,585 (Direct) | View |
| 2020-11-18 Option Award | 2020-11-19 09:36 am | N/A N/A | CMC Materials Inc. | CCMP | Li David H President and CEO | 17,784 | $141.76 | 80,585 (Direct) | View |
| 2020-08-11 Gift | 2020-08-13 11:03 am | N/A N/A | CABOT MICROELECTRONICS CORP | CCMP | Li David H President and CEO | 5,000 | $0 | 70,680 (Direct) | View |
| 2020-06-30 Option Award | 2020-07-02 07:59 am | N/A N/A | CABOT MICROELECTRONICS CORP | CCMP | Li David H President and CEO | 86 | $118.61 | 75,680 (Direct) | View |
| 2020-02-10 Exercise | 2020-02-11 10:39 am | N/A N/A | CABOT MICROELECTRONICS CORP | CCMP | Li David H President and CEO | 10,000 | $60.27 | 144,695 (Direct) | View |
| 2020-02-10 Exercise | 2020-02-11 10:39 am | 2016-12-03 2025-12-03 | CABOT MICROELECTRONICS CORP | CCMP | Li David H President and CEO | 38,850 | $0 | 144,695 (Direct) | View |
| 2020-02-10 Exercise | 2020-02-11 10:39 am | N/A N/A | CABOT MICROELECTRONICS CORP | CCMP | Li David H President and CEO | 28,850 | $42.37 | 144,695 (Direct) | View |
| 2019-12-31 Option Award | 2020-01-02 1:33 pm | N/A N/A | CABOT MICROELECTRONICS CORP | CCMP | Li David H President and CEO | 111 | $96.09 | 75,595 (Direct) | View |