Entegris, Inc.
US ˙ NasdaqGS ˙ US29362U1043

SecurityENTG / Entegris, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership471,179 shares
Latest Disclosed Value $ 55,241
Natixis Advisors, L.p. reports 11.98% increase in ownership of ENTG / Entegris, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 471,179 shares of Entegris, Inc. (US:ENTG) valued at $55,241,026 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 420,758 shares of Entegris, Inc.. This represents a change in shares of 11.98% during the quarter. The current value of the position is $66,120,549 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)
2026-05-13 2026-03-31 13F ENTEGRIS COM 29362U104 471,179 50,421 11.98 55 57.14 0.0768
2026-02-10 2025-12-31 13F ENTEGRIS COM 29362U104 420,758 54,973 15.03 35 6.06 0.0502
2025-11-13 2025-09-30 13F ENTEGRIS INC COM 29362U104 365,785 100,784 38.03 34 57.14 0.0493
2025-08-13 2025-06-30 13F ENTEGRIS COM 29362U104 265,001 -92,576 -25.89 21 -32.26 0.0339
2025-05-08 2025-03-31 13F ENTEGRIS COM 29362U104 357,577 72,770 25.55 31 10.71 0.0578
2025-02-10 2024-12-31 13F ENTEGRIS COM 29362U104 284,807 29,063 11.36 28 0.00 0.0527
2024-11-06 2024-09-30 13F ENTEGRIS COM 29362U104 255,744 -8,762 -3.31 29 -20.00 0.0561
2024-08-01 2024-06-30 13F ENTEGRIS COM 29362U104 264,506 6,274 2.43 36 -2.78 0.0779
2024-04-25 2024-03-31 13F ENTEGRIS COM 29362U104 258,232 35,263 15.82 36 38.46 0.0834
2024-02-06 2023-12-31 13F ENTEGRIS COM 29362U104 222,969 -194,017 -46.53 27 -33.33 0.0703
2023-11-13 2023-09-30 13F ENTEGRIS COM 29362U104 416,986 -5,525 -1.31 39 -15.22 0.1198
2023-08-15 2023-06-30 13F ENTEGRIS COM 29362U104 422,511 42,346 11.14 47 48.39 0.1446
2023-05-11 2023-03-31 13F ENTEGRIS COM 29362U104 380,165 54,767 16.83 31 47.62 0.1073
2023-01-27 2022-12-31 13F ENTEGRIS COM 29362U104 325,398 -17,861 -5.20 21 -99.93 0.0807
2022-11-14 2022-09-30 13F ENTEGRIS COM 29362U104 343,259 -103,767 -23.21 28,498 -30.80 0.1206
2022-08-12 2022-06-30 13F ENTEGRIS COM 29362U104 447,026 1,504 0.34 41,185 -29.57 0.1811
2022-05-12 2022-03-31 13F ENTEGRIS COM 29362U104 445,522 -48,705 -9.85 58,479 -14.62 0.2230
2022-02-08 2021-12-31 13F ENTEGRIS COM 29362U104 494,227 74,173 17.66 68,490 29.51 0.2615
2021-11-15 2021-09-30 13F ENTEGRIS SPONSORED ADS 29362U104 420,054 112,154 36.43 52,885 39.68 0.2175
2021-08-12 2021-06-30 13F ENTEGRIS COM 29362U104 307,900 73,855 31.56 37,862 44.70 0.1767
2021-05-05 2021-03-31 13F ENTEGRIS COM 29362U104 234,045 -5,075 -2.12 26,165 13.86 0.1366
2021-02-12 2020-12-31 13F ENTEGRIS COM 29362U104 239,120 -25,532 -9.65 22,979 16.79 0.1324
2020-11-12 2020-09-30 13F ENTEGRIS COM 29362U104 264,652 197,665 295.08 19,675 397.35 0.1238
2020-08-11 2020-06-30 13F ENTEGRIS COM 29362U104 66,987 -120,152 -64.20 3,956 -52.78 0.0263
2020-04-27 2020-03-31 13F ENTEGRIS COM 29362U104 187,139 2,189 1.18 8,378 -9.56 0.0683
2020-02-10 2019-12-31 13F ENTEGRIS COM 29362U104 184,950 8,559 4.85 9,264 11.60 0.0653
2019-11-12 2019-09-30 13F ENTEGRIS COM 29362U104 176,391 91,395 107.53 8,301 161.70 0.0659
2019-08-12 2019-06-30 13F ENTEGRIS COM SH BEN INT 29362U104 84,996 84,996 3,172 0.0259
2018-02-14 2017-12-31 13F ENTEGRIS COM 29362U104 0 -74,826 -100.00 0 -100.00
2017-11-14 2017-09-30 13F ENTEGRIS COM 29362U104 74,826 74,826 2,157 0.0228
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.