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Jeremy Grantham's Micron Technology, Inc. (MU) position

Not anymore: Jeremy Grantham fully exited MU in Q1 2026. The position peaked at $70M in Q1 2023.
View full portfolio →
Value at exit
$6.0M
Shares at exit
21K
Est. average buy price (i)
$90.18
est. since Q1 2021
Quarter-end price
$285.41

Estimated trade prices

Average price in quarters with purchases
$70.98
Average prices in quarters with sales
  • Q4 2025: $229.63 (136K shares sold)
  • Q3 2025: $127.81 (24K shares sold)
  • Q2 2025: $93.37 (56K shares sold)
  • Q1 2025: $96.05 (60K shares sold)
  • Q3 2024: $104.58 (48K shares sold)
  • Q2 2024: $126.02 (46K shares sold)
  • Q1 2024: $90.51 (63K shares sold)
  • Q4 2023: $74.29 (612K shares sold)
  • Q3 2023: $66.99 (93K shares sold)
  • Q2 2023: $64.28 (187K shares sold)
  • Q4 2021: $78.08 (21K shares sold)
  • Q2 2021: $84.41 (92K shares sold)

MU price vs Grantham's position

1Y 3Y 5Y MAX
Dates
$50$500$1,000$1,50020222023202420252026Added 49K shares (12.6%) · Q3 2021. Average closing price $75.09 · Price range $70.23–$82.0049KsharespurchasedSold 21K shares (4.9%) · Q4 2021. Average closing price $78.08 · Price range $66.38–$96.1721KsharessoldAdded 99K shares (24.0%) · Q1 2022. Average closing price $85.25 · Price range $69.40–$97.3699KsharespurchasedAdded 171K shares (33.2%) · Q2 2022. Average closing price $67.92 · Price range $55.01–$77.67171KsharespurchasedAdded 55K shares (8.1%) · Q3 2022. Average closing price $58.00 · Price range $48.88–$65.0455KsharespurchasedAdded 260K shares (35.1%) · Q4 2022. Average closing price $54.72 · Price range $49.12–$63.10260KsharespurchasedAdded 157K shares (15.7%) · Q1 2023. Average closing price $58.60 · Price range $50.37–$63.87157KsharespurchasedSold 187K shares (16.1%) · Q2 2023. Average closing price $64.28 · Price range $57.02–$73.93187KsharessoldSold 93K shares (9.6%) · Q3 2023. Average closing price $66.99 · Price range $60.65–$71.7993KsharessoldSold 612K shares (69.7%) · Q4 2023. Average closing price $74.29 · Price range $64.53–$87.06612KsharessoldSold 63K shares (23.5%) · Q1 2024. Average closing price $90.51 · Price range $79.50–$119.2563KsharessoldSold 46K shares (22.6%) · Q2 2024. Average closing price $126.02 · Price range $106.77–$153.4546KsharessoldSold 48K shares (30.2%) · Q3 2024. Average closing price $104.58 · Price range $86.27–$136.8248KsharessoldAdded 189K shares (171.5%) · Q4 2024. Average closing price $101.72 · Price range $84.16–$113.41189KsharespurchasedSold 60K shares (20.3%) · Q1 2025. Average closing price $96.05 · Price range $86.89–$109.3860KsharessoldSold 56K shares (23.7%) · Q2 2025. Average closing price $93.37 · Price range $64.72–$127.2556KsharessoldSold 24K shares (13.4%) · Q3 2025. Average closing price $127.81 · Price range $105.46–$168.8924KsharessoldSold 136K shares (86.7%) · Q4 2025. Average closing price $229.63 · Price range $180.22–$294.37136Ksharessold← Earlier —1 sell
Average closing price · filing quarter
$229.63
Price range · filing quarter
$180.22 – $294.37
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Exited −21K −$8.2M −100.0% 0 May 14, 2026
Q4 2025 Reduced −136K −$31M −86.7% 21K Feb 17, 2026
Q3 2025 Reduced −24K −$3.1M −13.4% 157K Nov 13, 2025
Q2 2025 Reduced −56K −$5.3M −23.7% 182K Aug 13, 2025
Q1 2025 Reduced −60K −$5.8M −20.3% 238K May 14, 2025
Q4 2024 Added +189K +$19M +171.5% 298K Feb 13, 2025
Q3 2024 Reduced −48K −$5.0M −30.2% 110K Nov 13, 2024
Q2 2024 Reduced −46K −$5.8M −22.6% 157K Aug 13, 2024
Q1 2024 Reduced −63K −$5.7M −23.5% 203K May 14, 2024
Q4 2023 Reduced −612K −$45M −69.7% 266K Feb 13, 2024
Q3 2023 Reduced −93K −$6.2M −9.6% 878K Nov 13, 2023
Q2 2023 Reduced −187K −$12M −16.1% 971K Aug 14, 2023
Q1 2023 Added +157K +$9.2M +15.7% 1.2M May 12, 2023
Q4 2022 Added +260K +$14M +35.1% 1.0M Feb 13, 2023
Q3 2022 Added +55K +$3.2M +8.1% 740K Nov 10, 2022
Q2 2022 Added +171K +$12M +33.2% 685K Aug 12, 2022
Q1 2022 Added +99K +$8.5M +24.0% 514K May 13, 2022
Q4 2021 Reduced −21K −$1.7M −4.9% 415K Feb 11, 2022
Q3 2021 Added +49K +$3.7M +12.6% 436K Nov 12, 2021
Q2 2021 Reduced −92K −$7.7M −19.1% 387K Aug 12, 2021
Q1 2021 First covered – – – 479K May 13, 2021
Data through Q1 2026 · filed May 14, 2026
21 grouped rows from 21 quarters

Who else owns MU

Capital World Investors
owns 3.7% of shares outstanding
Est. $12.0B · Shares: 42.1M

FMR LLC
owns 2.8% of shares outstanding
Est. $9.1B · Shares: 32.1M

Primecap Management Co
owns 1.9% of shares outstanding
Est. $6.2B · Shares: 21.9M

Morgan Stanley
owns 1.5% of shares outstanding
Est. $4.8B · Shares: 16.8M

See all owners of MU →

More Grantham positions

Microsoft Corporation(MSFT)
$2.3B
5.8% of portfolio

Alphabet Inc.(GOOGL)
$1.9B
5.1% of portfolio

Johnson & Johnson(JNJ)
$1.8B
4.6% of portfolio

Apple Inc.(AAPL)
$1.8B
4.5% of portfolio

Meta Platforms, Inc.(META)
$1.7B
4.5% of portfolio

Lam Research Corporation(LRCX)
$1.4B
3.8% of portfolio

Common questions

Does Jeremy Grantham own MU?

Not currently. Jeremy Grantham fully exited MU in Q1 2026, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jeremy Grantham buy MU?

Jeremy Grantham held MU since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jeremy Grantham sell MU?

Yes. Jeremy Grantham reduced and then fully exited MU by Q1 2026; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of MU does Jeremy Grantham own?

None as of the latest filing: Jeremy Grantham has exited MU. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jeremy Grantham pay for MU?

Jeremy Grantham began building the MU position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.