Transactions
18
Insider / ENTEGRIS INC
Blachier Olivier
President, Materials Solutions at ENTEGRIS INC
- Company
- ENTEGRIS INC
- Ticker
- ENTG
- First filing on record
- November 18, 2025
- Latest trade on record
- August 14, 2026
- SEC filings
- EDGAR ↗
Blachier Olivier, President, Materials Solutions at ENTEGRIS INC, has disclosed 18 transactions in ENTG since November 18, 2025: 0 purchases (0 open-market buys) and 11 sales, worth about $1.5M at the reported prices. The latest was filed August 17, 2026, 3 days after the trade; 1 filing was late against the 2-business-day Form 4 deadline.
Open-market buys
0
Sales
11
Avg. disclosure lag
3.1d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Blachier Olivier made no purchases and 11 sales worth $1.2M, plus 7 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Blachier Olivier has traded 1 stock on record; the largest by dollars is ENTG.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
1 of 8 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| S | Open-market sale | 7 | 6,427 | $890K |
| F | Shares withheld for tax | 4 | 2,472 | $293K |
| M | Option exercise or conversion | 4 | 8,000 | $323K |
| A | Grant or award | 3 | 24,607 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 16 | 0 | 9 · $1.1M |
| 2025 | 2 | 0 | 2 · $73K |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| ENTG | Option / conversion M | August 14, 2026 | August 17, 2026 | 3d | 2,000 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| ENTG | Sell S | August 14, 2026 | August 17, 2026 | 3d | 2,000 | $161 | $321K | 10b5-1 plan | Form 4 ↗ | |
| ENTG | Option / conversion M | August 14, 2026 | August 17, 2026 | 3d | 2,000 | $81 | $161K | 10b5-1 plan | Form 4 ↗ | |
| ENTG | Option / conversion M | May 14, 2026 | May 18, 2026 | 4d | 2,000 | — | — | derivative | Form 4 ↗ | |
| ENTG | Sell S | May 14, 2026 | May 18, 2026 | 4d | 2,000 | $140 | $280K | Form 4 ↗ | ||
| ENTG | Option / conversion M | May 14, 2026 | May 18, 2026 | 4d | 2,000 | $81 | $161K | Form 4 ↗ | ||
| ENTG | Sell S | April 7, 2026 | April 8, 2026 | 1d | 275 | $116 | $32K | 10b5-1 plan | Form 4 ↗ | |
| ENTG | Sell F | April 5, 2026 | April 6, 2026 | 1d | 643 | $116 | $75K | Form 4 ↗ | ||
| ENTG | Other A | April 1, 2026 | April 2, 2026 | 1d | 6,318 | — | — | Form 4 ↗ | ||
| ENTG | Sell S | February 20, 2026 | February 23, 2026 | 3d | 394 | $131 | $52K | 10b5-1 plan | Form 4 ↗ | |
| ENTG | Sell S | February 20, 2026 | February 23, 2026 | 3d | 1,064 | $131 | $140K | 10b5-1 plan | Form 4 ↗ | |
| ENTG | Sell S | February 20, 2026 | February 23, 2026 | 3d | 206 | $131 | $27K | 10b5-1 plan | Form 4 ↗ | |
| ENTG | Sell F | February 19, 2026 | February 23, 2026 | 4d | 500 | $133 | $66K | 10b5-1 plan | Form 4 ↗ | |
| ENTG | Sell F | February 19, 2026 | February 23, 2026 | 4d | 884 | $133 | $117K | 10b5-1 plan | Form 4 ↗ | |
| ENTG | Other A | February 19, 2026 | February 23, 2026 | 4d | 3,011 | — | — | 10b5-1 plan | Form 4 ↗ | |
| ENTG | Other A | February 12, 2026 | February 17, 2026 | 5d | 15,278 | — | — | late | Form 4 ↗ | |
| ENTG | Sell S | November 17, 2025 | November 18, 2025 | 1d | 488 | $77 | $38K | 10b5-1 plan | Form 4 ↗ | |
| ENTG | Sell F | November 14, 2025 | November 18, 2025 | 4d | 445 | $78 | $35K | 10b5-1 plan | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| August 17, 2026 | Form 4 | 0001891661-26-000002 | 3 | published | EDGAR ↗ |
| May 18, 2026 | Form 4 | 0001101302-26-000122 | 3 | published | EDGAR ↗ |
| April 8, 2026 | Form 4 | 0001101302-26-000093 | 1 | published | EDGAR ↗ |
| April 6, 2026 | Form 4 | 0001101302-26-000087 | 1 | published | EDGAR ↗ |
| April 2, 2026 | Form 4 | 0001101302-26-000071 | 1 | published | EDGAR ↗ |
| February 23, 2026 | Form 4 | 0001101302-26-000041 | 6 | published | EDGAR ↗ |
| February 17, 2026 | Form 4 | 0001101302-26-000024 | 1 | published | EDGAR ↗ |
| November 18, 2025 | Form 4 | 0001891661-25-000011 | 2 | published | EDGAR ↗ |
Other insiders at ENTEGRIS INC
- LOY BERTRAND Director 34 rows
- Colella Joseph SVP and General Counsel 19 rows
- Haris Clinton M. SVP & President, APS Division 15 rows
- Woodland Daniel D. SVP & President, MS Division 15 rows
- Rice Susan G. SVP, Global Human Resources 11 rows
- SALEKI-GERHARDT AZITA EVP, CHIEF OPERATIONS OFFICER 7 rows
- LaGorga Linda SVP, Chief Financial Officer 5 rows
- Reeder David Director 5 rows
- BRUGGEWORTH ROBERT A Director 4 rows
- Sauer Michael VP, Controller & CAO 4 rows
Everyone on file, with contracts and lobbying under the company's name: ENTEGRIS INC.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 8 | 18 | November 18, 2025 | August 17, 2026 | Form 4 list on EDGAR |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.