Entegris, Inc.
US ˙ NasdaqGS ˙ US29362U1043

SecurityENTG / Entegris, Inc.
InstitutionShell Asset Management Co
Latest Disclosed Ownership6,195 shares
Latest Disclosed Value $ 573
Shell Asset Management Co reports 35.67% decrease in ownership of ENTG / Entegris, Inc.

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 6,195 shares of Entegris, Inc. (US:ENTG) valued at $572,790 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 9,630 shares of Entegris, Inc.. The current value of the position is $869,344 USD.

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)
2025-11-07 2025-09-30 13F ENTEGRIS COM 29362U104 6,195 -3,435 -35.67 1 0.0575
2025-07-23 2025-06-30 13F ENTEGRIS COM 29362U104 9,630 5,484 132.27 1 0.0268
2025-05-14 2025-03-31 13F ENTEGRIS COM 29362U104 4,146 57 1.39 0 0.0172
2025-02-14 2024-12-31 13F ENTEGRIS COM 29362U104 4,089 0 0.00 0 0.0177
2024-11-07 2024-09-30 13F ENTEGRIS COM 29362U104 4,089 0 0.00 0 0.0202
2024-07-25 2024-03-31 13F ENTEGRIS COM 29362U104 4,089 51 1.26 1 0.0252
2024-02-14 2023-12-31 13F ENTEGRIS COM 29362U104 4,038 2,474 158.18 0 0.0224
2023-11-08 2023-09-30 13F ENTEGRIS COM 29362U104 1,564 -11 -0.70 0 0.0061
2023-07-28 2023-06-30 13F ENTEGRIS COM 29362U104 1,575 -1,845 -53.95 0 0.0069
2023-05-15 2023-03-31 13F ENTEGRIS COM 29362U104 3,420 -86 -2.45 0 0.0116
2023-02-07 2022-12-31 13F ENTEGRIS COM 29362U104 3,506 -389 -9.99 0 -100.00 0.0101
2022-11-14 2022-09-30 13F ENTEGRIS COM 29362U104 3,895 -487 -11.11 323 -20.05 0.0126
2022-08-09 2022-06-30 13F ENTEGRIS COM 29362U104 4,382 -2,034 -31.70 404 -52.02 0.0120
2022-05-04 2022-03-31 13F ENTEGRIS COM 29362U104 6,416 -667 -9.42 842 -14.26 0.0199
2022-02-09 2021-12-31 13F ENTEGRIS COM 29362U104 7,083 -5,125 -41.98 982 -36.11 0.0201
2021-11-04 2021-09-30 13F ENTEGRIS COM 29362U104 12,208 -540 -4.24 1,537 -1.98 0.0345
2021-08-12 2021-06-30 13F ENTEGRIS COM 29362U104 12,748 680 5.63 1,568 16.23 0.0304
2021-05-10 2021-03-31 13F ENTEGRIS COM 29362U104 12,068 -70 -0.58 1,349 15.69 0.0270
2021-02-16 2020-12-31 13F ENTEGRIS COM 29362U104 12,138 -12,204 -50.14 1,166 -35.58 0.0241
2020-11-13 2020-09-30 13F ENTEGRIS COM 29362U104 24,342 0 0.00 1,810 25.96 0.0421
2020-08-10 2020-06-30 13F ENTEGRIS COM 29362U104 24,342 -300 -1.22 1,437 30.28 0.0359
2020-05-11 2020-03-31 13F ENTEGRIS COM 29362U104 24,642 -372 -1.49 1,103 -11.97 0.0307
2020-02-13 2019-12-31 13F ENTEGRIS COM 29362U104 25,014 -579 -2.26 1,253 4.07 0.0270
2019-11-12 2019-09-30 13F ENTEGRIS COM 29362U104 25,593 -221 -0.86 1,204 25.03 0.0275
2019-08-12 2019-06-30 13F ENTEGRIS COM 29362U104 25,814 -585 -2.22 963 2.23 0.0213
2019-05-09 2019-03-31 13F ENTEGRIS COM 29362U104 26,399 0 0.00 942 27.99 0.0208
2019-02-13 2018-12-31 13F ENTEGRIS COM 29362U104 26,399 -2,200 -7.69 736 -11.11 0.0183
2018-11-13 2018-09-30 13F ENTEGRIS COM 29362U104 28,599 0 0.00 828 -14.64 0.0163
2018-08-10 2018-06-30 13F ENTEGRIS COM 29362U104 28,599 -1,523 -5.06 970 -7.44 0.0199
2018-05-14 2018-03-31 13F ENTEGRIS COM 29362U104 30,122 0 0.00 1,048 14.29 0.0209
2018-02-09 2017-12-31 13F ENTEGRIS COM 29362U104 30,122 0 0.00 917 5.52 0.0182
2017-10-20 2017-09-30 13F/A-1 ENTEGRIS COM 29362U104 30,122 -600 -1.95 869 28.93 0.0193
2017-07-26 2017-06-30 13F ENTEGRIS COM 29362U104 30,722 0 0.00 674 -6.26 0.0167
2017-04-26 2017-03-31 13F ENTEGRIS COM 29362U104 30,722 -2,149 -6.54 719 22.28 0.0184
2017-01-10 2016-12-31 13F ENTEGRIS COM 29362U104 32,871 -287 -0.87 588 1.73 0.0159
2016-10-28 2016-09-30 13F ENTEGRIS COM 29362U104 33,158 33,158 578 0.0138
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.