Entegris, Inc.
MX ˙ BMV ˙ US29362U1043
SecurityMX:ENTG / Entegris, Inc.
InstitutionFenimore Asset Management Inc
Latest Disclosed Ownership497,838 shares
Latest Disclosed Value $ 58,366,527
Fenimore Asset Management Inc reports 9.69% decrease in ownership of ENTG / Entegris, Inc.

On May 15, 2026 - Fenimore Asset Management Inc filed a 13F-HR form disclosing ownership of 497,838 shares of Entegris, Inc. (MX:ENTG) valued at $58,366,527 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 551,246 shares of Entegris, Inc.. This represents a change in shares of -9.69% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-15 2026-03-31 13F Entegris COM 29362U104 497,838 -53,408 -9.69 58,367 25.68 1.3017
2026-02-02 2025-12-31 13F Entegris COM 29362U104 551,246 5,376 0.98 46,442 -7.98 0.9671
2025-10-20 2025-09-30 13F Entegris COM 29362U104 545,870 -2,013 -0.37 50,471 14.22 1.0119
2025-07-22 2025-06-30 13F Entegris COM 29362U104 547,883 26,806 5.14 44,187 -3.06 0.8818
2025-04-14 2025-03-31 13F Entegris COM 29362U104 521,077 15,895 3.15 45,584 -8.91 0.9654
2025-01-21 2024-12-31 13F Entegris COM 29362U104 505,182 5,885 1.18 50,043 -10.93 1.0514
2024-11-14 2024-09-30 13F Entegris COM 29362U104 499,297 28,094 5.96 56,186 -11.94 1.1318
2024-08-14 2024-06-30 13F Entegris COM 29362U104 471,203 20,730 4.60 63,801 0.78 1.3975
2024-04-30 2024-03-31 13F Entegris COM 29362U104 450,473 8,592 1.94 63,309 19.57 1.3371
2024-01-23 2023-12-31 13F Entegris COM 29362U104 441,881 730 0.17 52,946 27.80 1.2292
2023-10-19 2023-09-30 13F Entegris COM 29362U104 441,151 243 0.06 41,428 -15.21 1.0760
2023-07-25 2023-06-30 13F Entegris COM 29362U104 440,908 10,361 2.41 48,861 38.38 1.2190
2023-04-20 2023-03-31 13F Entegris COM 29362U104 430,547 5,955 1.40 35,309 130,674.07 0.9214
2023-01-17 2022-12-31 13F Entegris COM 29362U104 424,592 832 0.20 28 -99.92 0.7487
2022-10-25 2022-09-30 13F Entegris COM 29362U104 423,760 16,029 3.93 35,181 -6.34 1.0111
2022-07-26 2022-06-30 13F Entegris COM 29362U104 407,731 4,860 1.21 37,564 -28.97 1.0603
2022-04-12 2022-03-31 13F Entegris COM 29362U104 402,871 1,162 0.29 52,881 -5.01 1.2933
2022-01-13 2021-12-31 13F Entegris COM 29362U104 401,709 9,410 2.40 55,669 12.71 1.2364
2021-10-26 2021-09-30 13F Entegris COM 29362U104 392,299 539 0.14 49,390 2.52 1.2139
2021-07-15 2021-06-30 13F Entegris COM 29362U104 391,760 1,560 0.40 48,175 10.43 1.1669
2021-04-16 2021-03-31 13F Entegris COM 29362U104 390,200 -156,020 -28.56 43,624 -16.89 1.1262
2021-01-28 2020-12-31 13F Entegris COM 29362U104 546,220 -37,550 -6.43 52,492 20.96 1.4740
2020-10-13 2020-09-30 13F Entegris COM 29362U104 583,770 17,320 3.06 43,397 29.74 1.4015
2020-07-28 2020-06-30 13F Entegris COM 29362U104 566,450 7,055 1.26 33,449 33.56 1.1742
2020-04-24 2020-03-31 13F Entegris COM 29362U104 559,395 -925 -0.17 25,044 -10.77 1.0099
2020-01-16 2019-12-31 13F Entegris COM 29362U104 560,320 0 0.00 28,066 6.44 0.8558
2019-10-22 2019-09-30 13F Entegris COM 29362U104 560,320 23,440 4.37 26,369 31.61 0.8695
2019-07-16 2019-06-30 13F Entegris COM 29362U104 536,880 536,880 20,036 0.6658
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.