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William von Mueffling’s Entegris ENTG Stock Holding History

William von Mueffling’s Portfolio ENTG Stock Details ENTG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$17.9M Sell
99,756
-2,066,672
-95% -$298M 2.7% 15
2026
Q1 		$254M Sell
2,166,428
-292,725
-12% -$34.6M 1.69% 27
2025
Q4 		$207M Buy
2,459,153
+19,434
+0.8% +$1.69M 1.12% 34
2025
Q3 		$226M Sell
2,439,719
-26,054
-1% -$2.22M 1.24% 32
2025
Q2 		$199M Sell
2,465,773
-72,402
-3% -$5.5M 1.15% 34
2025
Q1 		$222M Sell
2,538,175
-78,179
-3% -$7.89M 1.44% 32
2024
Q4 		$259M Buy
2,616,354
+291,893
+13% +$30.8M 1.57% 29
2024
Q3 		$262M Sell
2,324,461
-69,402
-3% -$8.22M 1.6% 31
2024
Q2 		$324M Sell
2,393,863
-122,028
-5% -$16.1M 2.17% 21
2024
Q1 		$354M Sell
2,515,891
-50,406
-2% -$6.44M 2.22% 25
2023
Q4 		$307M Sell
2,566,297
-61,560
-2% -$6.25M 2.05% 26
2023
Q3 		$247M Sell
2,627,857
-461,093
-15% -$46.2M 1.83% 31
2023
Q2 		$342M Buy
3,088,950
+184,469
+6% +$16.8M 2.39% 23
2023
Q1 		$238M Sell
2,904,481
-51,733
-2% -$4.19M 1.94% 30
2022
Q4 		$194M Buy
2,956,214
+399,570
+16% +$29.4M 1.64% 32
2022
Q3 		$212M Buy
2,556,644
+472,922
+23% +$46.2M 1.92% 30
2022
Q2 		$192M Sell
2,083,722
-1,929
-0.1% -$209K 1.6% 31
2022
Q1 		$274M Buy
2,085,651
+56,391
+3% +$7.25M 1.95% 29
2021
Q4 		$281M Sell
2,029,260
-152,313
-7% -$21.3M 1.86% 30
2021
Q3 		$275M Sell
2,181,573
-32,322
-1% -$3.9M 1.87% 30
2021
Q2 		$272M Sell
2,213,895
-23,553
-1% -$2.71M 1.83% 32
2021
Q1 		$250M Sell
2,237,448
-372,352
-14% -$38.3M 1.82% 30
2020
Q4 		$251M Sell
2,609,800
-12,912
-0.5% -$1.13M 1.88% 29
2020
Q3 		$195M Sell
2,622,712
-38,193
-1% -$2.56M 1.63% 29
2020
Q2 		$157M Buy
2,660,905
+17,543
+0.7% +$974K 1.37% 30
2020
Q1 		$118M Sell
2,643,362
-7,739
-0.3% -$401K 1.31% 29
2019
Q4 		$133M Buy
2,651,101
+510,423
+24% +$24.6M 1.23% 29
2019
Q3 		$101M Buy
+2,140,678
New +$90.3M 0.98% 33

Other funds holding ENTG

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

William von Mueffling's ENTG Position: Q2 2026 in Review

William von Mueffling reduced its Entegris (ENTG) stake by 95% in Q2 2026, selling an estimated $298M and leaving 99,756 shares worth $17.9M. The position accounts for 2.7% of the portfolio, ranked #15.

William von Mueffling first reported a position in ENTG in Q3 2019 and has held it in 28 quarters since. The position peaked at $354M in Q1 2024. 742 funds tracked by Wall St. Rank hold ENTG as of Q2 2026.

  • William von Mueffling held 99,756 shares of Entegris worth $17.9M as of Q2 2026.
  • William von Mueffling sold 2,066,672 Entegris shares in Q2 2026, an estimated $298M.
  • Entegris made up 2.7% of William von Mueffling's portfolio in Q2 2026, its #15 holding.
  • William von Mueffling first reported a position in Entegris in Q3 2019 and has held it in 28 quarters since.
  • William von Mueffling's Entegris position peaked at $354M in Q1 2024.
  • 742 funds tracked by Wall St. Rank held Entegris as of Q2 2026.

Based on Cantillon Capital Management's 13F filing for Q2 2026, filed 29 Jul 2026.