| $314M | ||
| $164M | ||
| $92M | ||
| $80M | ||
| $77M | ||
| $76M |
Buys | $0 | 0 | 0 |
Sells | $50,856,696 | 24 | 100 |
| Blachier Olivier | SVP, Chief Strategy Officer | 0 | $0 | 4 | $568,447 | $-568,447 |
| LEDERER JAMES P | director | 0 | $0 | 2 | $698,895 | $-698,895 |
| LaGorga Linda | SVP, Chief Financial Officer | 0 | $0 | 1 | $1.54M | $-1.54M |
| Colella Joseph | SVP and General Counsel | 0 | $0 | 4 | $1.59M | $-1.59M |
| Haris Clinton M. | SVP & President, APS Division | 0 | $0 | 4 | $2.89M | $-2.89M |
| Rice Susan G. | SVP, Global Human Resources | 0 | $0 | 2 | $3.35M | $-3.35M |
| Woodland Daniel D. | SVP & President, MS Division | 0 | $0 | 1 | $3.98M | $-3.98M |
| LOY BERTRAND | Executive Chair | 0 | $0 | 6 | $36.23M | $-36.23M |
Entegris, Inc. develops, manufactures, and supplies microcontamination control products, specialty chemicals, and advanced materials handling solutions in North America, Taiwan, China, South Korea, Japan, Europe, and Southeast Asia. It operates in three segments: Specialty Chemicals and Engineered Materials (SCEM); Microcontamination Control (MC); and Advanced Materials Handling (AMH). The SCEM segment offers high-performance and high-purity process chemistries, gases, and materials, as well as delivery systems to support semiconductor and other advanced manufacturing processes. The MC segment provides solutions to filter and purify critical liquid chemistries and gases used in semiconductor manufacturing processes and other high-technology industries. The AMH segment develops solutions to monitor, protect, transport, and deliver critical liquid chemistries, wafers, and other substrates for application in the semiconductor, life sciences, and other high-technology industries. The company's customers include logic and memory semiconductor device manufacturers, semiconductor equipment makers, gas and chemical manufacturing companies, and wafer grower companies; and flat panel display equipment makers, panel manufacturers, and manufacturers of hard disk drive components and devices, as well as their related ecosystems. It also serves manufacturers and suppliers in the solar industries, electrical discharge machining customers, glass and glass container manufacturers, aerospace manufacturers, and manufacturers of biomedical implantation devices. Entegris, Inc. was founded in 1966 and is headquartered in Billerica, Massachusetts.
Over the last 12 months, insiders at Entegris, Inc. have bought $0 and sold $50.86M worth of Entegris, Inc. stock.
On average, over the past 5 years, insiders at Entegris, Inc. have bought $0 and sold $26.16M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 123,600 shares for transaction amount of $1.34M was made by GMT CAPITAL CORP (10 percent owner) on 2014‑10‑20.
| 2026-06-03 | Sale | LEDERER JAMES P | director | 3,569 0.0024% | $143.59 | $512,473 | -4.04% | |
| 2026-05-27 | Sale | Haris Clinton M. | SVP & President, APS Division | 6,848 0.0048% | $149.23 | $1.02M | +1.21% | |
| 2026-05-15 | Sale | Rice Susan G. | SVP, Global Human Resources | 19,893 0.013% | $132.84 | $2.64M | +2.89% | |
| 2026-05-14 | Sale | Haris Clinton M. | SVP & President, APS Division | 5,830 0.004% | $144.57 | $842,843 | -2.27% | |
| 2026-05-14 | Sale | Colella Joseph | SVP and General Counsel | 6,326 0.0042% | $140.17 | $886,715 | -2.27% | |
| 2026-05-14 | Sale | Blachier Olivier | SVP, Chief Strategy Officer | 2,000 0.0013% | $140.04 | $280,080 | -2.27% | |
| 2026-04-17 | Sale | LOY BERTRAND | Executive Chair | 44,138 0.0287% | $144.41 | $6.37M | -2.48% | |
| 2026-04-14 | Sale | LOY BERTRAND | Executive Chair | 17,396 0.0121% | $140.22 | $2.44M | +3.60% | |
| 2026-04-07 | Sale | Colella Joseph | SVP and General Counsel | 1,592 0.001% | $115.57 | $183,987 | +19.15% | |
| 2026-04-07 | Sale | Blachier Olivier | SVP, Chief Strategy Officer | 275 0.0002% | $115.57 | $31,782 | +19.15% | |
| 2026-02-25 | Sale | LOY BERTRAND | Executive Chair | 50,322 0.0331% | $137.41 | $6.91M | -2.98% | |
| 2026-02-24 | Sale | LOY BERTRAND | Executive Chair | 59,516 0.04% | $138.95 | $8.27M | -2.15% | |
| 2026-02-20 | Sale | Colella Joseph | SVP and General Counsel | 1,580 0.001% | $131.49 | $207,754 | +0.62% | |
| 2026-02-20 | Sale | LaGorga Linda | SVP, Chief Financial Officer | 11,438 0.0076% | $135.00 | $1.54M | +0.62% | |
| 2026-02-20 | Sale | Blachier Olivier | SVP, Chief Strategy Officer | 1,664 0.0011% | $131.49 | $218,799 | +0.62% | |
| 2026-02-12 | Sale | Woodland Daniel D. | SVP & President, MS Division | 30,474 0.0201% | $130.65 | $3.98M | +1.80% | |
| 2026-02-02 | Sale | LOY BERTRAND | Executive Chair | 65,250 0.0431% | $119.61 | $7.8M | +11.02% | |
| 2026-01-21 | Sale | Haris Clinton M. | SVP & President, APS Division | 5,830 0.0039% | $120.00 | $699,600 | +10.05% | |
| 2025-12-10 | Sale | LEDERER JAMES P | director | 2,008 0.0013% | $92.84 | $186,423 | +29.64% | |
| 2025-12-01 | Sale | LOY BERTRAND | Executive Chair | 57,570 0.0383% | $76.88 | $4.43M | +58.94% |
| LOY BERTRAND | Executive Chair | 227527 0.1494% | $28.53M | 0 | 59 | |
| Rice Susan G. | SVP, Global Human Resources | 69038 0.0453% | $8.66M | 0 | 4 | |
| Haris Clinton M. | SVP & President, APS Division | 54961 0.0361% | $6.89M | 0 | 9 | |
| Colella Joseph | SVP and General Counsel | 50121 0.0329% | $6.29M | 0 | 8 | |
| Woodland Daniel D. | SVP & President, MS Division | 46904 0.0308% | $5.88M | 0 | 4 | |
| Blachier Olivier | SVP, Chief Strategy Officer | 34897 0.0229% | $4.38M | 0 | 8 | |
| LaGorga Linda | SVP, Chief Financial Officer | 33810 0.0222% | $4.24M | 0 | 1 | |
| LEDERER JAMES P | director | 18277 0.012% | $2.29M | 0 | 7 | |
| GMT CAPITAL CORP | 10 percent owner | 14052510 9.2269% | $1.76B | 12 | 11 | +17.38% |
| WCB HOLDINGS LLC | 10 percent owner | 12365608 8.1192% | $1.55B | 0 | 31 | |
| ARGOV GIDEON | Pres & Chief Executive Officer | 716082 0.4702% | $89.8M | 2 | 3 | +214.64% |
| QUERNEMOEN DANIEL R | director | 710959 0.4668% | $89.16M | 0 | 10 | |
| VILLAS JOHN D | Former Employee of Entegris | 331665 0.2178% | $41.59M | 0 | 26 | |
| GEYER STAN | 272996 0.1792% | $34.24M | 0 | 17 | ||
| PANDRAUD JEAN MARC | Former employee of Issuer | 240309 0.1578% | $30.14M | 0 | 16 | |
| Goodman John B | 208834 0.1371% | $26.19M | 0 | 58 | ||
| CARNS MICHAEL P C | director | 205569 0.135% | $25.78M | 1 | 0 | +565.89% |
| Edlund Todd James | EVP & COO | 191578 0.1258% | $24.03M | 0 | 28 | |
| KLINGL GARY F | 115707 0.076% | $14.51M | 0 | 1 | ||
| Sullivan Brian F. | director | 97521 0.064% | $12.23M | 1 | 10 | +5.6% |
| CHRISTMAN DANIEL W | director | 81689 0.0536% | $10.24M | 0 | 16 | |
| WALCOTT PETER W | SR V.P. & General Counsel | 74041 0.0486% | $9.29M | 0 | 43 | |
| Tison Stuart | SVP & GM, SCEM | 69037 0.0453% | $8.66M | 0 | 8 | |
| Murphy John J | SVP, Human Resources | 59961 0.0394% | $7.52M | 0 | 21 | |
| Blake Lynn Larson | Vice President, Finance, CAO | 57252 0.0376% | $7.18M | 0 | 7 | |
| DAUWALTER JAMES E | director | 56175 0.0369% | $7.04M | 0 | 38 | |
| BRADLEY MICHAEL A | director | 49803 0.0327% | $6.25M | 0 | 3 | |
| Kramer Christian | Sr. V.P. & CCO | 46659 0.0306% | $5.85M | 0 | 1 | |
| WRIGHT MICHAEL WILLIAM | Chief Operating Officer | 46127 0.0303% | $5.78M | 0 | 4 | |
| Burns Robert Nicholas | director | 42808 0.0281% | $5.37M | 0 | 9 | |
| MCDANIEL ROGER D | director | 40891 0.0268% | $5.13M | 0 | 15 | |
| Morris Gregory Colburn | Sr.VP.Chief Commerical Officer | 39742 0.0261% | $4.98M | 0 | 13 | |
| Beckman Bruce W. | SVP, Finance | 25921 0.017% | $3.25M | 0 | 5 | |
| Richards Neil | SVP, GOSCQ | 20744 0.0136% | $2.6M | 0 | 1 | |
| GRAVES GREGORY B | EVP & CFO | 19703 0.0129% | $2.47M | 5 | 66 | +176.19% |
| Shaner William James | SVP & President, AMH | 17912 0.0118% | $2.25M | 0 | 32 | |
| BERNARDS JAMES A | director | 17310 0.0114% | $2.17M | 0 | 1 | |
| OLSON PAUL L H | 15350 0.0101% | $1.93M | 0 | 24 | ||
| GENTILCORE JAMES | director | 13967 0.0092% | $1.75M | 0 | 3 | |
| O'Neill James Anthony | SVP & CTO | 13652 0.009% | $1.71M | 0 | 8 | |
| Marshall Gregory Bryan | SVP, Qual, EHS & EBS | 12435 0.0082% | $1.56M | 0 | 5 | |
| MCMAHON BRAD | Senior VP - Human Resources | 10677 0.007% | $1.34M | 0 | 2 | |
| Besnard Michael | SVP, Chief Commercial Officer | 10213 0.0067% | $1.28M | 0 | 1 | |
| Rucci Corey | SVP, Business Development | 8540 0.0056% | $1.07M | 0 | 20 | |
| SULLIVAN DONALD M | director | 6000 0.0039% | $752,460.00 | 1 | 0 | +4.2% |
| PYLE THOMAS O | director | 4167 0.0027% | $522,583.47 | 0 | 1 | |
| Sauer Michael | VP, Controller & CAO | 1779 0.0012% | $223,067.64 | 0 | 10 |
| Increased Positions | 284 | +41.4% | 15M | +8.28% |
| Decreased Positions | 300 | -43.73% | 20M | -11.45% |
| New Positions | 91 | New | 6M | New |
| Sold Out Positions | 72 | Sold Out | 8M | Sold Out |
| Total Postitions | 670 | -2.33% | 170M | -3.17% |
| Blackrock, Inc. | $1.53M | 11.22% | 17.06M | -678,348 | -3.82% | 2025-09-30 |
| Vanguard Group Inc | $1.43M | 10.54% | 16.02M | +443,518 | +2.85% | 2025-09-30 |
| Price T Rowe Associates Inc /Md/ | $1.37M | 10.1% | 15.34M | +205,263 | +1.36% | 2025-09-30 |
| Barrow Hanley Mewhinney & Strauss Llc | $667,932.00 | 4.91% | 7.46M | +412,121 | +5.85% | 2025-09-30 |
| Capital Research Global Investors | $624,603.00 | 4.59% | 6.97M | +7M | New | 2025-09-30 |
| Principal Financial Group Inc | $526,279.00 | 3.87% | 5.88M | +540,755 | +10.13% | 2025-09-30 |
| State Street Corp | $455,917.00 | 3.35% | 5.09M | +62,619 | +1.25% | 2025-09-30 |
| Durable Capital Partners Lp | $337,197.00 | 2.48% | 3.77M | +709,121 | +23.2% | 2025-09-30 |
| London Co Of Virginia | $316,696.00 | 2.33% | 3.54M | -138,814 | -3.78% | 2025-09-30 |
| Ubs Group Ag | $304,968.00 | 2.24% | 3.41M | +559,435 | +19.66% | 2025-09-30 |