- Corporate Officers - L
- Loy Bertrand
Insider Trading History of Loy Bertrand
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Loy Bertrand since 2015.
This trader's CIK number is 1197452.
At the time of last reporting, Loy Bertrand was the Executive Chair of Entegris Inc. (stock ticker symbol ENTG).
Also see all insider trading activities at Entegris Inc.
Note that in the past
LOY BERTRAND also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Harvard Bioscience Inc (HBIO) by Loy Bertrand
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2022 | HBIO | 67,106 | $216,619 | 0 | $0 | 0 | $0 |
| 2019 | HBIO | 70,409 | $197,217 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Entegris Inc (ENTG) by Loy Bertrand
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | ENTG | 0 | $0 | 57,570 | $4,434,444 | 57,570 | $1,918,808 |
| 2024 | ENTG | 0 | $0 | 27,044 | $3,821,046 | 27,044 | $841,068 |
| 2021 | ENTG | 0 | $0 | 820,138 | $99,303,983 | 300,444 | $10,647,134 |
| 2020 | ENTG | 0 | $0 | 194,463 | $13,833,965 | 428,916 | $5,453,349 |
| 2018 | ENTG | 0 | $0 | 175,000 | $5,859,106 | 581,902 | $5,986,025 |
| 2016 | ENTG | 0 | $0 | 0 | $0 | 143,570 | $1,016,475 |
| 2015 | ENTG | 0 | $0 | 49,348 | $665,309 | 70,000 | $494,900 |
Yearly summary of insider trading at Btu International Inc (BTUI) by Loy Bertrand
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2016 | BTUI | 0 | $0 | 0 | $0 | 9,701 | $22,055 |
Insider trading activities at 3 companies by Loy Bertrand:
1. Harvard Bioscience Inc (HBIO)
2. Entegris Inc (ENTG)
3. Btu International Inc (BTUI)
Table 1. Insider trading of Harvard Bioscience Inc (HBIO) by Loy Bertrand
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2022-08-24 | HBIO | Buy | 17,291 | 3.23 | 55,849 |
| 2022-08-25 | HBIO | Buy | 8,244 | 3.34 | 27,534 |
| 2022-08-23 | HBIO | Buy | 8,939 | 3.23 | 28,872 |
| 2022-08-22 | HBIO | Buy | 4,918 | 3.16 | 15,540 |
| 2022-08-23 | HBIO | Buy | 8,939 | 3.23 | 28,872 |
| 2022-08-22 | HBIO | Buy | 4,918 | 3.16 | 15,540 |
| 2022-08-23 | HBIO | Buy | 8,939 | 3.23 | 28,872 |
| 2022-08-22 | HBIO | Buy | 4,918 | 3.16 | 15,540 |
| 2019-11-13 | HBIO | Buy | 6,100 | 2.52 | 15,372 |
| 2019-11-12 | HBIO | Buy | 10,579 | 2.51 | 26,553 |
| 2019-11-11 | HBIO | Buy | 12,855 | 2.59 | 33,294 |
| 2019-11-08 | HBIO | Buy | 6,616 | 2.64 | 17,466 |
| 2019-09-13 | HBIO | Buy | 7,372 | 3.11 | 22,926 |
| 2019-09-12 | HBIO | Buy | 11,297 | 3.07 | 34,681 |
| 2019-09-11 | HBIO | Buy | 15,590 | 3.01 | 46,925 |
Table 2. Insider trading of Entegris Inc (ENTG) by Loy Bertrand
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-12-01 | ENTG | Option Ex | 57,570 | 33.33 | 1,918,808 |
| 2025-12-01 | ENTG | Sale | 57,570 | 77.03 | 4,434,444 |
| 2024-07-03 | ENTG | Option Ex | 27,044 | 31.10 | 841,068 |
| 2024-07-03 | ENTG | Sale | 27,044 | 141.29 | 3,821,046 |
| 2021-08-11 | ENTG | Sale | 23,710 | 118.08 | 2,799,676 |
| 2021-08-10 | ENTG | Sale | 65,000 | 120.75 | 7,848,750 |
| 2021-08-09 | ENTG | Sale | 74,806 | 121.64 | 9,099,551 |
| 2021-08-04 | ENTG | Sale | 56,178 | 125.75 | 7,064,608 |
| 2021-04-12 | ENTG | Sale | 100,000 | 119.77 | 11,976,900 |
| 2021-04-13 | ENTG | Sale | 100,000 | 118.52 | 11,851,600 |
| 2021-04-14 | ENTG | Sale | 100,000 | 118.53 | 11,852,500 |
| 2021-04-05 | ENTG | Option Ex | 300,444 | 35.44 | 10,647,134 |
| 2021-04-05 | ENTG | Sale | 300,444 | 122.52 | 36,810,398 |
| 2020-07-31 | ENTG | Sale | 118,520 | 72.04 | 8,538,536 |
| 2020-07-30 | ENTG | Option Ex | 257,928 | 12.20 | 3,146,721 |
| 2020-07-24 | ENTG | Option Ex | 170,988 | 13.49 | 2,306,628 |
| 2020-07-27 | ENTG | Sale | 75,943 | 69.73 | 5,295,429 |
| 2018-02-20 | ENTG | Option Ex | 581,902 | 10.29 | 5,986,025 |
| 2018-02-21 | ENTG | Sale | 172,976 | 33.49 | 5,792,274 |
| 2018-02-22 | ENTG | Sale | 2,024 | 33.02 | 66,832 |
| 2016-08-01 | ENTG | Option Ex | 143,570 | 7.08 | 1,016,475 |
| 2015-02-19 | ENTG | Option Ex | 70,000 | 7.07 | 494,900 |
| 2015-02-19 | ENTG | Sale | 49,348 | 13.48 | 665,309 |
Table 3. Insider trading of Btu International Inc (BTUI) by Loy Bertrand
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2016-01-26 | BTUI | Option Ex | 3,440 | 2.18 | 7,499 |
| 2015-01-26 | BTUI | Option Ex | 6,261 | 2.33 | 14,556 |
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 Loy Bertrand
(Executive Chair of Entegris Inc at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.