ENTEGRIS INC (ENTG): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in ENTG · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
25
13F filers
Aggregate Value
$1.4B
Across holders
Last Price
$138.25
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity13 increased11 reduced5 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ CIK 0000763212 | Institutional Manager | 3.13M | $562.1M | 39.8% | 0.3% | Reduced | $-3.1M | Q2 2026 |
| Select Equity Group, L.P. CIK 0001592643 | Hedge Fund | 2.49M | $448.6M | 31.7% | 2.2% | Added | +$264.9M | Q2 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 624K | $112.2M | 7.9% | 0.1% | Added | +$108.8M | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 551K | $99.1M | 7.0% | 0.1% | Added | +$81.5M | Q2 2026 |
| Durable Capital Partners LP CIK 0001798849 | Hedge Fund | 293K | $52.7M | 3.7% | 0.5% | Reduced | $-122.0M | Q2 2026 |
| MAPLELANE CAPITAL, LLC CIK 0001512173 | Hedge Fund | 165K | $29.7M | 2.1% | 0.5% | Added | $-20.3M | Q2 2026 |
| Duquesne Family Office LLC CIK 0001536411 | Family Office | 118K | $21.3M | 1.5% | 0.4% | Added | — | Q2 2026 |
| Woodline Partners LP CIK 0001784547 | Hedge Fund | 74K | $13.3M | 0.9% | 0.0% | Added | +$1.8M | Q2 2026 |
| Grantham, Mayo, Van Otterloo & Co. LLC CIK 0001352662 | Institutional Manager | 73K | $13.1M | 0.9% | 0.0% | Reduced | $-8.7M | Q2 2026 |
| ArrowMark Colorado Holdings LLC CIK 0001483859 | Hedge Fund | 59K | $10.5M | 0.7% | 0.4% | Reduced | $-27.1M | Q2 2026 |
Reduced
Institutional Manager
$562.1M· 39.8% of total· 0.3% port· 3.13M sh· $-3.1M QoQ· Q2 2026
Added
Hedge Fund
$448.6M· 31.7% of total· 2.2% port· 2.49M sh· +$264.9M QoQ· Q2 2026
Added
Hedge Fund
$112.2M· 7.9% of total· 0.1% port· 624K sh· +$108.8M QoQ· Q2 2026
Added
Hedge Fund
$99.1M· 7.0% of total· 0.1% port· 551K sh· +$81.5M QoQ· Q2 2026
Reduced
Hedge Fund
$52.7M· 3.7% of total· 0.5% port· 293K sh· $-122.0M QoQ· Q2 2026
Added
Hedge Fund
$29.7M· 2.1% of total· 0.5% port· 165K sh· $-20.3M QoQ· Q2 2026
Added
Family Office
$21.3M· 1.5% of total· 0.4% port· 118K sh· — QoQ· Q2 2026
Added
Hedge Fund
$13.3M· 0.9% of total· 0.0% port· 74K sh· +$1.8M QoQ· Q2 2026
Reduced
Institutional Manager
$13.1M· 0.9% of total· 0.0% port· 73K sh· $-8.7M QoQ· Q2 2026
Reduced
Hedge Fund
$10.5M· 0.7% of total· 0.4% port· 59K sh· $-27.1M QoQ· Q2 2026
Added
Hedge Fund
$9.4M· 0.7% of total· 0.0% port· 52K sh· +$7.4M QoQ· Q2 2026
Reduced
Hedge Fund
$8.4M· 0.6% of total· 0.0% port· 47K sh· $-13.8M QoQ· Q2 2026
Reduced
Hedge Fund
$5.1M· 0.4% of total· 0.0% port· 28K sh· +$4.4M QoQ· Q2 2026
Added
Hedge Fund
$5.0M· 0.4% of total· 0.0% port· 28K sh· +$2.0M QoQ· Q2 2026
Added
Hedge Fund
$4.1M· 0.3% of total· 0.0% port· 24K sh· +$4.0M QoQ· Q2 2026
Added
Hedge Fund
$4.0M· 0.3% of total· 0.0% port· 22K sh· $-9.7M QoQ· Q2 2026
Unchanged
Institutional Manager
$3.6M· 0.3% of total· 0.0% port· 20K sh· +$0 QoQ· Q2 2026
Reduced
Hedge Fund
$3.3M· 0.2% of total· 0.0% port· 18K sh· +$1.9M QoQ· Q2 2026
Reduced
Hedge Fund
$2.5M· 0.2% of total· 0.0% port· 14K sh· +$1.4M QoQ· Q2 2026
Reduced
Hedge Fund
$2.2M· 0.2% of total· 0.0% port· 12K sh· $-8.8M QoQ· Q2 2026
Reduced
Institutional Manager
$1.7M· 0.1% of total· 0.0% port· 10K sh· $-1.9M QoQ· Q2 2026
Reduced
Hedge Fund
$864K· 0.1% of total· 0.0% port· 5K sh· $-1.4M QoQ· Q2 2026
Added
Hedge Fund
$549K· 0.0% of total· 0.0% port· 3K sh· — QoQ· Q2 2026
Added
Hedge Fund
$487K· 0.0% of total· 0.0% port· 3K sh· +$127K QoQ· Q2 2026
Added
Hedge Fund
$204K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q2 2026
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