Entegris (ENTG) Held by Superinvestors
ENTEGRIS INC (ENTG) is currently held by 6 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $329.02M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Mairs & Power Growth Fund is currently the largest disclosed institutional shareholder of ENTG tracked by InsiderSet, reporting ownership valued at approximately $234.11M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $200.96M, representing an estimated loss of -14.16% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed ENTG value among the investors covered in this analysis. Major shareholders include Mairs & Power Growth Fund, Durable Capital Partners, Duquesne Family Office Llc, and several other long-term asset managers with concentrated positions in ENTEGRIS INC (ENTG).
This page ranks the largest institutional ENTG shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Mairs & Power Growth Fund | Andrew R. Adams | 2.15% | 1,301,640 | $234,112,970 | $200,960,200 | -$33,152,770 | -14.16% |
| Durable Capital Partners | Henry Ellenbogen | 0.51% | 293,139 | $52,723,981 | $45,257,730 | -$7,466,251 | -14.16% |
| Duquesne Family Office Llc | Stanley Druckenmiller | 0.49% | 118,300 | $21,277,000 | $18,264,337 | -$3,012,663 | -14.16% |
| Cantillon Capital Management | William Von Mueffling | 2.70% | 99,756 | $17,942,114 | $15,401,329 | -$2,540,785 | -14.16% |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.00% | 9,549 | $1,717,483 | $1,474,270 | -$243,213 | -14.16% |
| Sequoia Financial Advisors | 0.01% | 6,949 | $1,249,846 | $1,072,856 | -$176,990 | -14.16% |
Frequently asked questions about ENTG
Who are the largest superinvestors holding ENTG?
The largest superinvestors holding ENTG in the latest SEC Form 13F filings include Mairs & Power Growth Fund, Durable Capital Partners, Duquesne Family Office Llc, Cantillon Capital Management, and First Eagle U.S. Value. InsiderSet ranks these superinvestors by their latest reported ENTG position.
What does the ENTG superinvestors page include?
This page tracks ENTG positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. ENTEGRIS INC (ENTG) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold ENTG?
InsiderSet currently tracks 6 superinvestors reporting ENTG holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own ENTG.
How much ENTG stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $329.02M in ENTG holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were ENTG superinvestor holdings last updated?
The latest ENTG superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor ENTG holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its ENTG position after the reporting date.
Are superinvestors buying or selling ENTG?
Buying and selling can be analyzed by comparing ENTG positions across consecutive 13F reporting periods. InsiderSet's ENTG Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ENTG ownership changes.
How have superinvestor ENTG holdings changed over time?
InsiderSet tracks ENTG holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.