Bertrand Loy insider trades: Entegris (ENTG) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Bertrand reports to the SEC
Open-market buys and sales
56 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 14, 2026 | ENTG | ↓ Sell10b5-1 | 17,396 | $140.22 | $2.4M | Direct | Apr 16, 2026 (2d) |
| Feb 25, 2026 | ENTG | ↓ Sell10b5-1 | 109,838 | $138.25 | $15.2M | Direct | Feb 26, 2026 (1d) |
| Feb 2, 2026 | ENTG | ↓ Sell10b5-1 | 65,250 | $119.61 | $7.8M | Direct | Feb 4, 2026 (2d) |
| Dec 1, 2025 | ENTG | ↓ Sell10b5-1 | 57,570 | $76.88 | $4.4M | Direct | Dec 3, 2025 (2d) |
| Jul 3, 2024 | ENTG | ↓ Sell | 27,044 | $140.63 | $3.8M | Direct | Jul 8, 2024 (5d) |
| Aug 26, 2022 | HBIO | ↑ Buy | 9,291 | $3.41 | $32K | Direct | Aug 29, 2022 (3d) |
| Aug 25, 2022 | HBIO | ↑ Buy | 25,535 | $3.27 | $83K | Direct | Aug 26, 2022 (1d) |
| Aug 23, 2022 | HBIO | ↑ Buy | 13,857 | $3.21 | $44K | Direct | Aug 24, 2022 (1d) |
| Aug 19, 2022 | HBIO | ↑ Buy | 10,759 | $3.27 | $35K | Direct | Aug 22, 2022 (3d) |
| Aug 11, 2021 | ENTG | ↓ Sell | 23,710 | $116.66 | $2.8M | By Family Trust | Aug 13, 2021 (2d) |
| Aug 10, 2021 | ENTG | ↓ Sell | 130,000 | $120.76 | $15.7M | By Family Trust | Aug 11, 2021 (1d) |
| Aug 9, 2021 | ENTG | ↓ Sell | 9,806 | $121.47 | $1.2M | Direct | Aug 11, 2021 (2d) |
| Aug 4, 2021 | ENTG | ↓ Sell | 39,178 | $125.44 | $4.9M | By Family Trust | Aug 6, 2021 (2d) |
| Aug 4, 2021 | ENTG | ↓ Sell | 17,000 | $125.42 | $2.1M | Direct | Aug 6, 2021 (2d) |
| Apr 14, 2021 | ENTG | ↓ Sell | 300,000 | $118.58 | $35.6M | Direct | Apr 14, 2021 (0d) |
| Apr 5, 2021 | ENTG | ↓ Sell | 300,444 | $120.69 | $36.3M | Direct | Apr 7, 2021 (2d) |
| Jul 31, 2020 | ENTG | ↓ Sell | 118,520 | $71.80 | $8.5M | Direct | Aug 3, 2020 (3d) |
| Jul 27, 2020 | ENTG | ↓ Sell | 75,943 | $69.64 | $5.3M | Direct | Jul 28, 2020 (1d) |
| Nov 13, 2019 | HBIO | ↑ Buy | 36,150 | $2.56 | $93K | Direct | Nov 13, 2019 (0d) |
| Sep 13, 2019 | HBIO | ↑ Buy | 34,259 | $3.05 | $105K | Direct | Sep 13, 2019 (0d) |
| Feb 22, 2018 | ENTG | ↓ Sell | 175,000 | $33.48 | $5.9M | Direct | Feb 22, 2018 (0d) |
| Feb 19, 2015 | ENTG | ↓ Sell10b5-1 | 49,348 | $13.48 | $665K | Direct | Feb 23, 2015 (4d) |
| Feb 20, 2013 | ENTG | ↓ Sell10b5-1 | 14,838 | $9.75 | $145K | Direct | Feb 22, 2013 (2d) |
| Feb 22, 2012 | ENTG | ↓ Sell | 77,752 | $9.32 | $724K | Direct | Feb 23, 2012 (1d) |
| Feb 16, 2012 | ENTG | ↓ Sell | 184,834 | $9.45 | $1.7M | Direct | Feb 21, 2012 (5d) |
| Jan 18, 2012 | ENTG | ↓ Sell10b5-1 | 82,122 | $9.20 | $756K | Direct | Jan 27, 2012 (9d) |
| Nov 8, 2011 | ENTG | ↓ Sell10b5-1 | 11,868 | $9.20 | $109K | Direct | Nov 10, 2011 (2d) |
| Jul 11, 2011 | ENTG | ↓ Sell10b5-1 | 22,666 | $9.49 | $215K | Direct | Jul 13, 2011 (2d) |
| May 20, 2011 | ENTG | ↓ Sell | 10,495 | $8.85 | $93K | Direct | May 24, 2011 (4d) |
| May 16, 2011 | ENTG | ↓ Sell | 58,333 | $8.86 | $517K | Direct | May 18, 2011 (2d) |
| Feb 22, 2011 | ENTG | ↓ Sell10b5-1 | 11,577 | $8.77 | $102K | Direct | Feb 23, 2011 (1d) |
| Feb 10, 2011 | ENTG | ↓ Sell | 100,000 | $8.70 | $870K | Direct | Feb 11, 2011 (1d) |
| Dec 2, 2010 | ENTG | ↓ Sell10b5-1 | 77,207 | $6.89 | $532K | Direct | Dec 3, 2010 (1d) |
| Feb 24, 2010 | ENTG | ↓ Sell10b5-1 | 7,107 | $4.66 | $33K | Direct | Feb 25, 2010 (1d) |
| Jan 21, 2010 | ENTG | ↓ Sell10b5-1 | 3,187 | $4.80 | $15K | Direct | Jan 22, 2010 (1d) |
| Jan 19, 2010 | ENTG | ↓ Sell10b5-1 | 8,020 | $4.87 | $39K | Direct | Jan 21, 2010 (2d) |
| Dec 15, 2009 | ENTG | ↓ Sell10b5-1 | 9,558 | $5.00 | $48K | Direct | Dec 15, 2009 (0d) |
| Feb 24, 2009 | ENTG | ↓ Sell10b5-1 | 2,168 | $0.73 | $2K | Direct | Feb 25, 2009 (1d) |
| Jan 22, 2009 | ENTG | ↓ Sell10b5-1 | 4,460 | $1.65 | $7K | Direct | Jan 23, 2009 (1d) |
| Jan 6, 2009 | ENTG | ↓ Sell10b5-1 | 3,155 | $2.11 | $7K | Direct | Jan 8, 2009 (2d) |
| Oct 3, 2008 | ENTG | ↓ Sell10b5-1 | 2,823 | $4.41 | $12K | Direct | Oct 6, 2008 (3d) |
| Jan 3, 2008 | ENTG | ↓ Sell10b5-1 | 3,160 | $8.55 | $27K | Direct | Jan 4, 2008 (1d) |
| Dec 12, 2007 | ENTG | ↓ Sell10b5-1 | 5,770 | $9.30 | $54K | Direct | Dec 13, 2007 (1d) |
| Oct 3, 2007 | ENTG | ↓ Sell10b5-1 | 3,315 | $8.77 | $29K | Direct | Oct 5, 2007 (2d) |
| Jul 5, 2007 | ENTG | ↓ Sell10b5-1 | 3,400 | $11.96 | $41K | Direct | Jul 6, 2007 (1d) |
| May 3, 2007 | ENTG | ↓ Sell10b5-1 | 44,124 | $12.00 | $530K | Direct | May 4, 2007 (1d) |
| Apr 26, 2007 | ENTG | ↓ Sell10b5-1 | 59,750 | $12.00 | $717K | Direct | Apr 27, 2007 (1d) |
| Apr 4, 2007 | ENTG | ↓ Sell10b5-1 | 2,540 | $10.97 | $28K | Direct | Apr 5, 2007 (1d) |
| Jan 23, 2007 | ENTG | ↓ Sell10b5-1 | 3,003 | $10.39 | $31K | Direct | Jan 24, 2007 (1d) |
| Jan 4, 2007 | ENTG | ↓ Sell10b5-1 | 3,050 | $10.61 | $32K | Direct | Jan 8, 2007 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ENTG insiders
Open-market trades in the last 12 months
About Bertrand Loy's insider trades
Bertrand Loy is Executive Chair at Entegris (ENTG). Since Dec 12, 2005, Bertrand has reported 6 open-market purchases worth $392K and 50 sales worth $160.3M on SEC Form 4. In the last 12 months: 4 sales ($29.9M).
34 sales (21% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include grants and awards (75 filings), shares withheld for taxes (27 filings), option exercises (19 filings), shares returned to the company (4 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ENTG insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.