Entegris, Inc.
US ˙ NasdaqGS ˙ US29362U1043

SecurityENTG / Entegris, Inc.
InstitutionAmundi
Latest Disclosed Ownership300,008 shares
Latest Disclosed Value $ 35,172,938
Amundi reports 28.91% decrease in ownership of ENTG / Entegris, Inc.

On May 15, 2026 - Amundi filed a 13F-HR form disclosing ownership of 300,008 shares of Entegris, Inc. (US:ENTG) valued at $35,172,938 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 422,025 shares of Entegris, Inc.. This represents a change in shares of -28.91% during the quarter. The current value of the position is $42,100,123 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)
2026-05-15 2026-03-31 13F ENTEGRIS COM 29362U104 300,008 -122,017 -28.91 35,173 -1.08 0.0040
2026-02-17 2025-12-31 13F ENTEGRIS COM 29362U104 422,025 133,311 46.17 35,556 22.83 0.0097
2025-11-14 2025-09-30 13F ENTEGRIS COM 29362U104 288,714 79,265 37.84 28,946 59.85 0.0093
2025-08-13 2025-06-30 13F ENTEGRIS COM 29362U104 209,449 94,803 82.69 18,109 119.57 0.0063
2025-05-15 2025-03-31 13F ENTEGRIS COM 29362U104 114,646 -2,380 -2.03 8,248 -29.36 0.0030
2025-02-07 2024-12-31 13F ENTEGRIS COM 29362U104 117,026 -3,760 -3.11 11,675 -12.18 0.0041
2024-11-13 2024-09-30 13F ENTEGRIS COM 29362U104 120,786 25,740 27.08 13,294 -0.58 0.0049
2024-08-14 2024-06-30 13F ENTEGRIS COM 29362U104 95,046 -48,588 -33.83 13,371 -26.75 0.0051
2024-05-15 2024-03-31 13F ENTEGRIS COM 29362U104 143,634 -55,136 -27.74 18,254 -18.45 0.0078
2024-02-14 2023-12-31 13F ENTEGRIS COM 29362U104 198,770 -49,750 -20.02 22,383 -5.63 0.0101
2023-11-14 2023-09-30 13F ENTEGRIS COM 29362U104 248,520 103,273 71.10 23,719 48.41 0.0117
2023-08-14 2023-06-30 13F ENTEGRIS COM 29362U104 145,247 38,806 36.46 15,982 98.13 0.0081
2023-05-15 2023-03-31 13F ENTEGRIS COM 29362U104 106,441 40,450 61.30 8,066 54.55 0.0043
2023-02-14 2022-12-31 13F ENTEGRIS COM 29362U104 65,991 -55,908 -45.86 5,220 -52.60 0.0029
2022-11-14 2022-09-30 13F ENTEGRIS COM 29362U104 121,899 57,955 90.63 11,011 82.24 0.0065
2022-09-02 2022-06-30 13F/A-1 ENTEGRIS COM 29362U104 63,944 6,703 11.71 6,042 -8.01 0.0048
2022-08-15 2022-06-30 13F ENTEGRIS COM 29362U104 63,944 6,703 6,042 0.0003
2022-05-16 2022-03-31 13F ENTEGRIS COM 29362U104 57,241 6,613 13.06 6,568 -1.59 0.0044
2022-02-14 2021-12-31 13F ENTEGRIS COM 29362U104 50,628 50,628 6,674 0.0042
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.