ENTEGRIS INC insider transactions

What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78. — In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

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2026-08-18	2026-08-14	Blachier Olivier	S	2,000	$160.66	Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-08-14 and its public availability date is 2026-08-18. Subtracting those calendar dates gives 4 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC accession 0001891661-26-000002 ↗SEC accession 0001811061-26-000002 ↗SEC accession 0001101302-26-000152 ↗

Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

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2026-08-18	2026-08-14	Blachier Olivier	S	2,000	$160.66	Not reported
2026-08-15	2026-08-13	Colella Joseph	S	3,916	$164.48	Not reported
2026-08-13	2026-08-11	Rice Susan G.	S	2,062	$149.52	Not reported
2026-08-05	2026-08-03	BRUGGEWORTH ROBERT A	A	1,329	$0	Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 38 displayed rows: Officers and directors in the directory

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Sullivan Brian F.	0000940454	29
Sauer Michael	0001552780	10
Blake Lynn Larson	0001485478	25
GENTILCORE JAMES	0001217378	15
BRADLEY MICHAEL A	0001198621	214
O'Neill James Anthony	0001786291	11
Tison Stuart	0001678021	9
Rice Susan G.	0001716139	7
LEDERER JAMES P	0001434807	244
Rucci Corey	0001607953	24
Haris Clinton M.	0001483553	11
Beckman Bruce W.	0001731462	6
LOY BERTRAND	0001197452	242
ARGOV GIDEON	0001187514	34
Besnard Michael	0001932881	3
Blachier Olivier	0001891661	11
Burns Robert Nicholas	0001520367	9
CARNS MICHAEL P C	0001130485	2
CHRISTMAN DANIEL W	0001199143	76
Colella Joseph	0001811061	11
DAUWALTER JAMES E	0001134619	453
Edlund Todd James	0001485429	55
Goodman John B	0001321965	214
GRAVES GREGORY B	0001208109	251
KLINGL GARY F	0001192787	1
LaGorga Linda	0001977397	1
Marshall Gregory Bryan	0001607961	5
MCDANIEL ROGER D	0001192788	97
Morris Gregory Colburn	0001485479	30
Murphy John J	0001343148	70
OLSON PAUL L H	0001226867	43
PANDRAUD JEAN MARC	0001197450	58
PYLE THOMAS O	0001035501	1
Richards Neil	0001932852	1
Shaner William James	0001485428	63
VILLAS JOHN D	0001192792	76
WALCOTT PETER W	0001197453	306
Woodland Daniel D.	0001630039	28

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

Strategy eligibility is held while filing coverage is unresolved.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.