Westfield Capital Management
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Westfield Capital Management’s Micron Technology MU Stock Holding History

Westfield Capital Management’s Portfolio MU Stock Details MU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$33.9M Buy
+100,434
New +$39.3M 0.14% 162
2024
Q4 		– Sell
-394,380
Closed -$40.9M – 262
2024
Q3 		$40.9M Buy
+394,380
New +$41.2M 0.18% 147
2021
Q4 		– Sell
-820,053
Closed -$58.2M – 256
2021
Q3 		$58.2M Sell
820,053
-29,817
-4% -$2.24M 0.35% 106
2021
Q2 		$72.2M Buy
+849,870
New +$71.7M 0.43% 86
2021
Q1 		– Sell
-717,918
Closed -$54M – 267
2020
Q4 		$54M Buy
+717,918
New +$43.3M 0.32% 110
2020
Q2 		– Sell
-684,891
Closed -$28.8M – 247
2020
Q1 		$28.8M Buy
+684,891
New +$35.6M 0.25% 118
2019
Q3 		– Sell
-1,418,588
Closed -$54.7M – 247
2019
Q2 		$54.7M Buy
+1,418,588
New +$54.1M 0.41% 85
2019
Q1 		– Sell
-1,913,272
Closed -$60.7M – 269
2018
Q4 		$60.7M Buy
1,913,272
+698,977
+58% +$26.5M 0.52% 72
2018
Q3 		$54.9M Buy
1,214,295
+271,872
+29% +$13.7M 0.39% 86
2018
Q2 		$49.4M Sell
942,423
-176,746
-16% -$9.56M 0.37% 92
2018
Q1 		$58.4M Sell
1,119,169
-365,674
-25% -$17.5M 0.45% 80
2017
Q4 		$61.1M Sell
1,484,843
-344,092
-19% -$14.8M 0.47% 81
2017
Q3 		$71.9M Buy
1,828,935
+386,019
+27% +$12.2M 0.55% 61
2017
Q2 		$43.1M Buy
1,442,916
+880,646
+157% +$25.8M 0.37% 98
2017
Q1 		$16.3M Buy
+562,270
New +$13.7M 0.14% 191
2015
Q2 		– Sell
-747,215
Closed -$20.3M – 301
2015
Q1 		$20.3M Sell
747,215
-889,736
-54% -$26.6M 0.12% 209
2014
Q4 		$57.3M Buy
+1,636,951
New +$54.2M 0.34% 101

Other funds holding MU

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Westfield Capital Management's MU Position: Q1 2026 in Review

Westfield Capital Management opened a new position in Micron Technology (MU) in Q1 2026: 100,434 shares worth $33.9M. The stake represents 0.14% of the portfolio and ranks #162 among its holdings. This is a return to the name: Westfield Capital Management previously reported a position in MU as recently as Q3 2024.

Westfield Capital Management first reported a position in MU in Q4 2014 and has held it in 17 quarters since. The position peaked at $72.2M in Q2 2021. 2,990 funds tracked by Wall St. Rank hold MU as of Q1 2026.

  • Westfield Capital Management held 100,434 shares of Micron Technology worth $33.9M as of Q1 2026.
  • Micron Technology was a new Westfield Capital Management position in Q1 2026.
  • Micron Technology made up 0.14% of Westfield Capital Management's portfolio in Q1 2026, its #162 holding.
  • Westfield Capital Management first reported a position in Micron Technology in Q4 2014 and has held it in 17 quarters since.
  • Westfield Capital Management's Micron Technology position peaked at $72.2M in Q2 2021.
  • 2,990 funds tracked by Wall St. Rank held Micron Technology as of Q1 2026.

Based on Westfield Capital Management's 13F filing for Q1 2026, filed 11 May 2026.