Summary
Updated Aug 31, 2026
Olivier Blachier is President, Materials Solutions of ENTEGRIS INC (ENTG). 12 SEC Form 4 filings on record going back to 2024, most recently on 17 August 2026. Most recent open-market trade: sold $321K of ENTG on 17 August 2026. Lifetime open-market sales: $958K.
Recent Transactions
20Every recent SEC Form 4 transaction Olivier Blachier has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Olivier Blachier go back to 2024: 12 primary Form 4 filings, an average of 4.0 per year. 12 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Olivier Blachier files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Bertrand Loy - $36.23M of ENTG open-market activity in the last 12 months
- Daniel D. Woodland - $3.98M of ENTG open-market activity in the last 12 months
- Susan G. Rice - $2.95M of ENTG open-market activity in the last 12 months
- Clinton M. Haris - $2.56M of ENTG open-market activity in the last 12 months
- Joseph Colella - $2.24M of ENTG open-market activity in the last 12 months
- Linda Lagorga - $1.54M of ENTG open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Olivier Blachier?
Olivier Blachier is a corporate insider, tracked as President, Materials Solutions of ENTEGRIS INC (ENTG). InsiderAlpha holds 12 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Olivier Blachier submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Olivier Blachier been buying or selling stock?
Recorded transactions: 0 open-market purchases and 9 open-market sales ($958K) across all tracked filings.
Where can I see all of Olivier Blachier's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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