A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 9 filings in this group are Form 4s for Entegris, Inc.
The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.
Across the 9 insider filings shown, the breakdown is 5 open-market sale, 1 compensation award and 1 tax withholding. The remaining 2 filings report no transaction line — a holdings statement, or a form whose transaction table could not be read — so they are left unclassified rather than guessed at. 5 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.
Form 4
Tax withholding
Tax / Compensation Filing
2026-08-19
ENTG insider Form 4 filed for equity award, exercise, or tax withholding
Reeder David (Director, President & CEO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
F |
Tax withholding on vested shares
|
5,386 |
$150.27 |
$809.4K |
Filing: Form 4 (Insider Transaction)
Insider: Reeder David (Director, President & CEO)
Shares: 5,386
Form 4
Open-market sale
Insider Selling
2026-08-17
ENTG insider Blachier Olivier (President, Materials Solutions) sold 2,000 shares (~$321.3K)
Blachier Olivier, listed as President, Materials Solutions at ENTEGRIS INC, reported an open-market sale of 2,000 ENTG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
2,000 |
$80.71 |
$161.4K |
S |
Open-market sale
|
2,000 |
$160.66 |
$321.3K |
M |
Option exercise
derivative · Employee Stock Option (Right to Buy)
|
2,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Blachier Olivier (President, Materials Solutions)
Shares: 2,000
Est. Value: $321.3K
Form 4
Open-market sale
Insider Selling
2026-08-14
ENTG insider Colella Joseph (SVP and General Counsel) sold 3,916 shares (~$644.1K)
Colella Joseph, listed as SVP and General Counsel at ENTEGRIS INC, reported an open-market sale of 3,916 ENTG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
3,916 |
$98.11 |
$384.2K |
S |
Open-market sale
|
3,916 |
$164.48 |
$644.1K |
M |
Option exercise
derivative · Employee Stock Option (Right to Buy)
|
3,916 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Colella Joseph (SVP and General Counsel)
Shares: 3,916
Est. Value: $644.1K
Form 4
Open-market sale
Insider Selling
2026-08-12
ENTG insider Rice Susan G. (SVP, Global Human Resources) sold 2,062 shares (~$308.3K)
Rice Susan G., listed as SVP, Global Human Resources at ENTEGRIS INC, reported an open-market sale of 2,062 ENTG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
2,062 |
$149.52 |
$308.3K |
Filing: Form 4 (Insider Transaction)
Insider: Rice Susan G. (SVP, Global Human Resources)
Shares: 2,062
Est. Value: $308.3K
Form 4
Tax / Compensation Filing
2026-08-04
ENTG insider Form 4 filed for equity award, exercise, or tax withholding
LOY BERTRAND (Director, Executive Chair) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Filing: Form 4 (Insider Transaction)
Insider: LOY BERTRAND (Director, Executive Chair)
Form 4
Compensation award
Tax / Compensation Filing
2026-08-04
ENTG insider Form 4 filed for equity award, exercise, or tax withholding
BRUGGEWORTH ROBERT A (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
1,329 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: BRUGGEWORTH ROBERT A (Director)
Shares: 1,329
Form 4
Tax / Compensation Filing
2026-06-04
ENTG insider Form 4 filed for equity award, exercise, or tax withholding
Woodland Daniel D. (SVP & President, MS Division) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Filing: Form 4 (Insider Transaction)
Insider: Woodland Daniel D. (SVP & President, MS Division)
Form 4
Open-market sale
Insider Selling
2026-06-04
ENTG insider LEDERER JAMES P (Director) sold 3,569 shares (~$512.5K)
LEDERER JAMES P, listed as Director at ENTEGRIS INC, reported an open-market sale of 3,569 ENTG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
3,569 |
$143.59 |
$512.5K |
Filing: Form 4 (Insider Transaction)
Insider: LEDERER JAMES P (Director)
Shares: 3,569
Est. Value: $512.5K
Form 4
Open-market sale
Insider Selling
2026-05-28
ENTG insider Haris Clinton M. (SVP & President, APS Division) sold 6,848 shares (~$1.02M)
Haris Clinton M., listed as SVP & President, APS Division at ENTEGRIS INC, reported an open-market sale of 6,848 ENTG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
6,848 |
$98.11 |
$671.9K |
S |
Open-market sale
|
6,848 |
$149.23 |
$1.02M |
M |
Option exercise
derivative · Employee Stock Option (Right to Buy)
|
6,848 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Haris Clinton M. (SVP & President, APS Division)
Shares: 6,848
Est. Value: $1.02M