Entegris, Inc.
US ˙ NasdaqGS ˙ US29362U1043

SecurityENTG / Entegris, Inc.
InstitutionOssiam
Latest Disclosed Ownership166 shares
Latest Disclosed Value $ 19,462
Ossiam reports 96.41% decrease in ownership of ENTG / Entegris, Inc.

On May 14, 2026 - Ossiam filed a 13F-HR form disclosing ownership of 166 shares of Entegris, Inc. (US:ENTG) valued at $19,462 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,621 shares of Entegris, Inc.. This represents a change in shares of -96.41% during the quarter. The current value of the position is $23,295 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)
2026-05-14 2026-03-31 13F ENTEGRIS COM 29362U104 166 -4,455 -96.41 19 -95.12 0.0003
2026-02-13 2025-12-31 13F ENTEGRIS COM 29362U104 4,621 1,509 48.49 389 35.54 0.0078
2025-11-14 2025-09-30 13F ENTEGRIS COM 29362U104 3,112 -3,148 -50.29 288 -43.06 0.0037
2025-08-13 2025-06-30 13F ENTEGRIS COM 29362U104 6,260 3 0.05 505 -7.86 0.0057
2025-05-14 2025-03-31 13F ENTEGRIS COM 29362U104 6,257 -1,307 -17.28 547 -26.97 0.0076
2025-02-13 2024-12-31 13F ENTEGRIS COM 29362U104 7,564 919 13.83 749 0.27 0.0129
2024-11-13 2024-09-30 13F ENTEGRIS COM 29362U104 6,645 1,717 34.84 748 11.99 0.0145
2024-08-13 2024-06-30 13F ENTEGRIS COM 29362U104 4,928 807 19.58 667 15.20 0.0126
2024-05-13 2024-03-31 13F ENTEGRIS COM 29362U104 4,121 473 12.97 579 32.49 0.0101
2024-02-13 2023-12-31 13F ENTEGRIS COM 29362U104 3,648 0 0.00 437 27.78 0.0070
2023-11-14 2023-09-30 13F ENTEGRIS COM 29362U104 3,648 -594 -14.00 343 -27.23 0.0061
2023-08-11 2023-06-30 13F ENTEGRIS COM 29362U104 4,242 2,286 116.87 470 193.75 0.0084
2023-05-12 2023-03-31 13F ENTEGRIS COM 29362U104 1,956 618 46.19 160 83.91 0.0033
2023-02-13 2022-12-31 13F ENTEGRIS COM 29362U104 1,338 0 0.00 88 -21.62 0.0023
2022-11-14 2022-09-30 13F ENTEGRIS COM 29362U104 1,338 1,338 111 0.0032
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.