Entegris, Inc.
MX ˙ BMV ˙ US29362U1043
SecurityMX:ENTG / Entegris, Inc.
InstitutionCantillon Capital Management Llc
Latest Disclosed Ownership2,166,428 shares
Latest Disclosed Value $ 253,992,019
Cantillon Capital Management Llc reports 11.90% decrease in ownership of ENTG / Entegris, Inc.

On May 7, 2026 - Cantillon Capital Management Llc filed a 13F-HR form disclosing ownership of 2,166,428 shares of Entegris, Inc. (MX:ENTG) valued at $253,992,019 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 2,459,153 shares of Entegris, Inc.. This represents a change in shares of -11.90% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F ENTEGRIS COM 29362U104 2,166,428 -292,725 -11.90 253,992 22.59 1.1205
2026-02-11 2025-12-31 13F ENTEGRIS COM 29362U104 2,459,153 19,434 0.80 207,184 -8.15 1.1203
2026-02-17 2025-09-30 13F/A-1 ENTEGRIS INC COM COMMON STOCK 29362U104 2,439,719 -26,054 -1.06 225,576 13.43 1.2420
2025-10-30 2025-09-30 13F ENTEGRIS COM 29362U104 2,439,719 -26,054 225,576 1.2420
2026-02-17 2025-06-30 13F/A-1 ENTEGRIS INC COM COMMON STOCK 29362U104 2,465,773 -72,402 -2.85 198,865 -10.44 1.1497
2025-07-30 2025-06-30 13F ENTEGRIS COM 29362U104 2,465,773 -72,402 198,865 1.1497
2026-02-17 2025-03-31 13F/A-1 ENTEGRIS INC COM COMMON STOCK 29362U104 2,538,175 -78,179 -2.99 222,040 -14.33 1.4379
2025-05-09 2025-03-31 13F ENTEGRIS COM 29362U104 2,538,175 -78,179 222,040 1.4379
2025-02-05 2024-12-31 13F ENTEGRIS COM 29362U104 2,616,354 291,893 12.56 259,176 -0.92 1.5663
2024-11-07 2024-09-30 13F ENTEGRIS COM 29362U104 2,324,461 -69,402 -2.90 261,572 -19.30 1.5995
2024-08-05 2024-06-30 13F ENTEGRIS COM 29362U104 2,393,863 -122,028 -4.85 324,129 -8.33 2.1672
2024-05-08 2024-03-31 13F ENTEGRIS COM 29362U104 2,515,891 -50,406 -1.96 353,583 14.99 2.2238
2024-02-07 2023-12-31 13F ENTEGRIS COM 29362U104 2,566,297 -61,560 -2.34 307,494 24.60 2.0545
2023-11-06 2023-09-30 13F ENTEGRIS COM 29362U104 2,627,857 -461,093 -14.93 246,782 -27.91 1.8305
2023-08-09 2023-06-30 13F ENTEGRIS COM 29362U104 3,088,950 184,469 6.35 342,317 43.71 2.3929
2023-05-04 2023-03-31 13F ENTEGRIS COM 29362U104 2,904,481 -51,733 -1.75 238,196 22.85 1.9398
2023-02-06 2022-12-31 13F ENTEGRIS COM 29362U104 2,956,214 399,570 15.63 193,898 -8.65 1.6422
2022-11-03 2022-09-30 13F ENTEGRIS COM 29362U104 2,556,644 472,922 22.70 212,253 10.56 1.9224
2022-08-03 2022-06-30 13F ENTEGRIS COM 29362U104 2,083,722 -1,929 -0.09 191,974 -29.88 1.6024
2022-05-03 2022-03-31 13F ENTEGRIS COM 29362U104 2,085,651 56,391 2.78 273,763 -2.65 1.9547
2022-01-27 2021-12-31 13F ENTEGRIS COM 29362U104 2,029,260 -152,313 -6.98 281,215 2.39 1.8576
2021-10-26 2021-09-30 13F ENTEGRIS COM 29362U104 2,181,573 -32,322 -1.46 274,660 0.89 1.8728
2021-07-27 2021-06-30 13F ENTEGRIS COM 29362U104 2,213,895 -23,553 -1.05 272,243 8.83 1.8336
2021-05-03 2021-03-31 13F ENTEGRIS COM 29362U104 2,237,448 -372,352 -14.27 250,146 -0.26 1.8210
2021-02-03 2020-12-31 13F ENTEGRIS COM 29362U104 2,609,800 -12,912 -0.49 250,802 28.63 1.8806
2020-10-30 2020-09-30 13F ENTEGRIS COM 29362U104 2,622,712 -38,193 -1.44 194,972 24.09 1.6302
2020-07-31 2020-06-30 13F ENTEGRIS COM 29362U104 2,660,905 17,543 0.66 157,127 32.77 1.3650
2020-04-30 2020-03-31 13F ENTEGRIS COM 29362U104 2,643,362 -7,739 -0.29 118,343 -10.88 1.3084
2020-02-07 2019-12-31 13F ENTEGRIS COM 29362U104 2,651,101 510,423 23.84 132,793 31.82 1.2349
2019-11-04 2019-09-30 13F ENTEGRIS COM 29362U104 2,140,678 2,140,678 100,740 0.9793
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.