Investigate / reported ownership
ENTG
Entegris Inc
8 tracked reported owners · snapshot updated 2026-10-04. Delayed disclosures, not live holdings or an investment recommendation.
Who reports owning ENTG?
Select a manager to inspect their portfolio. Reports may cover different quarters; portfolio weights describe disclosed long 13F holdings, not total economic exposure.
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Mairs & Power Funds | 2.1% | 19q | $234M | 1,301,640 |
| 2 | Henry Ellenbogen | 0.5% | 12q | $53M | 293,139 |
| 3 | Stanley Druckenmiller | 0.5% | 4q | $21M | 118,300 |
| 4 | William Von Mueffling | 2.7% | 28q | $18M | 99,756 |
| 5 | Joel Greenblatt | <0.1% | 35q | $8M | 46,784 |
Go beyond ownership.
A reviewed company brief is not available yet. You can inspect reported owners above and their filings below, then save this company for further research.
We have not generated a business case or inferred manager motives from these holdings.
Filing dates and original SEC sources
- Mairs & Power Funds · 2026Q2 · filed 2026-08-14 ↗
- Henry Ellenbogen · 2026Q2 · filed 2026-08-14 ↗
- Stanley Druckenmiller · 2026Q2 · filed 2026-08-14 ↗
- William Von Mueffling · 2026Q2 · filed 2026-07-29 ↗
- Joel Greenblatt · 2026Q2 · filed 2026-09-02 ↗
- Torray Funds · 2026Q2 · filed 2026-07-30 ↗
- First Eagle Investment Management · 2026Q2 · filed 2026-08-24 ↗
- Lee Ainslie · 2026Q2 · filed 2026-08-14 ↗
Your research workspace / ENTG
Ask better questions. Keep the evidence.
Explore the available sources for ENTEGRIS INC, then keep what deserves another look.
01 Investor activity
Reported evidence
Who reports owning it?
8 tracked reported owners in the snapshot generated 2026-10-04. Reports can cover different quarters. These are delayed disclosures, not live positions, total economic exposure, endorsements or reasons for investing.
02 Business evidence
No reviewed company brief is available. Business results, case and risks have not been established here.
03 Questions to investigate
Open saved takeaways →Reported position changes
Net disclosed share changes—not individual trades or execution dates. NEW has no prior-position percentage comparison; EXIT weight refers to the previous report.
| Manager | Move | % Port. | Δ Shares | Value | Filed |
|---|---|---|---|---|---|
| Henry Ellenbogen | TRIM | 0.5% | -70% | $53M | Aug 14, 2026 |
| Stanley Druckenmiller | NEW | 0.5% | New position | $21M | Aug 14, 2026 |
| Stephen Mandel | EXIT | 2.9% | -100% | $0 | Aug 14, 2026 |
| William Von Mueffling | TRIM | 2.7% | -95% | $18M | Jul 29, 2026 |
Keep your next step small.
Save the company and inspect its evidence. Recording a private view is optional and requires a separate, explicit save.
Record my own view →Optional email follow
Latticework Follow
Follow ENTG
Email me only when a reviewed weekly edition contains a material new decision about ENTG: a new position, exit, or a large share-count change that also clears the size threshold. There may be quiet weeks.
Confirm by email. Manage or stop follows in one click. See our privacy notice.
Long US 13F disclosures omit shorts and can be amended. CUSIP 29362U104. No current price, valuation or manager motive is inferred.