Entegris, Inc.
MX ˙ BMV ˙ US29362U1043
SecurityMX:ENTG / Entegris, Inc.
InstitutionAssenagon Asset Management S.A.
Latest Disclosed Ownership203,558 shares
Latest Disclosed Value $ 23,865,140
Assenagon Asset Management S.A. reports 18.35% increase in ownership of ENTG / Entegris, Inc.

On April 20, 2026 - Assenagon Asset Management S.A. filed a 13F-HR form disclosing ownership of 203,558 shares of Entegris, Inc. (MX:ENTG) valued at $23,865,140 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 172,000 shares of Entegris, Inc.. This represents a change in shares of 18.35% 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)
2026-04-20 2026-03-31 13F ENTEGRIS COM 29362U104 203,558 31,558 18.35 23,865 64.69 0.0362
2026-01-09 2025-12-31 13F ENTEGRIS COM 29362U104 172,000 -7,766 -4.32 14,491 -12.82 0.0199
2025-10-07 2025-09-30 13F ENTEGRIS COM 29362U104 179,766 -33,884 -15.86 16,621 -3.53 0.0227
2025-07-11 2025-06-30 13F ENTEGRIS COM 29362U104 213,650 -417,440 -66.15 17,231 -68.79 0.0256
2025-04-15 2025-03-31 13F ENTEGRIS COM 29362U104 631,090 -429,288 -40.48 55,208 -47.44 0.0921
2025-01-14 2024-12-31 13F ENTEGRIS COM 29362U104 1,060,378 137,046 14.84 105,041 1.10 0.1694
2024-10-23 2024-09-30 13F ENTEGRIS COM 29362U104 923,332 844,837 1,076.29 103,903 877.63 0.1912
2024-07-18 2024-06-30 13F ENTEGRIS COM 29362U104 78,495 -276,012 -77.86 10,628 -78.67 0.0237
2024-04-24 2024-03-31 13F ENTEGRIS COM 29362U104 354,507 333,973 1,626.44 49,822 1,925.28 0.1179
2024-01-17 2023-12-31 13F ENTEGRIS COM 29362U104 20,534 -46,090 -69.18 2,460 -60.68 0.0065
2023-11-06 2023-09-30 13F ENTEGRIS COM 29362U104 66,624 62,831 1,656.50 6,257 1,389.52 0.0194
2023-07-25 2023-06-30 13F ENTEGRIS COM 29362U104 3,793 -39,950 -91.33 420 -88.29 0.0015
2023-04-18 2023-03-31 13F ENTEGRIS COM 29362U104 43,743 39,582 951.26 3,587 0.0127
2023-01-12 2022-12-31 13F ENTEGRIS COM 29362U104 4,161 -2,668 -39.07 0 -100.00 0.0010
2022-10-27 2022-09-30 13F ENTEGRIS COM 29362U104 6,829 -1,259,184 -99.46 567 -99.51 0.0022
2022-07-27 2022-06-30 13F ENTEGRIS COM 29362U104 1,266,013 1,266,013 116,638 0.4323
2022-04-25 2022-03-31 13F ENTEGRIS COM 29362U104 0 -35,662 -100.00 0 -100.00
2022-02-01 2021-12-31 13F ENTEGRIS COM 29362U104 35,662 -14,019 -28.22 4,942 -20.99 0.0143
2021-10-19 2021-09-30 13F ENTEGRIS COM 29362U104 49,681 -206,204 -80.58 6,255 -80.12 0.0200
2021-07-15 2021-06-30 13F ENTEGRIS COM 29362U104 255,885 216,381 547.74 31,466 612.38 0.1068
2021-04-26 2021-03-31 13F ENTEGRIS COM 29362U104 39,504 39,504 4,417 0.0179
2021-02-01 2020-12-31 13F ENTEGRIS COM 29362U104 0 -80,177 -100.00 0 -100.00
2020-10-07 2020-09-30 13F ENTEGRIS COM 29362U104 80,177 36,748 84.62 5,960 132.45 0.0334
2020-07-21 2020-06-30 13F ENTEGRIS COM 29362U104 43,429 530 1.24 2,564 33.47 0.0164
2020-04-17 2020-03-31 13F ENTEGRIS COM 29362U104 42,899 42,899 1,921 0.0154
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.