Micron Technology, Inc.
US ˙ NasdaqGS ˙ US5951121038

SecurityMU / Micron Technology, Inc.
InstitutionWhittier Trust Co
Latest Disclosed Ownership79,682 shares
Latest Disclosed Value $ 30,100,672
Whittier Trust Co reports 1,536.52% increase in ownership of MU / Micron Technology, Inc.

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 79,682 shares of Micron Technology, Inc. (US:MU) valued at $26,919,767 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 4,869 shares of Micron Technology, Inc.. This represents a change in shares of 1,536.52% during the quarter. The current value of the position is $86,022,297 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-28 2026-03-31 13F MICRON TECH common 595112103 79,682 74,813 1,536.52 30,101 1,700.24 0.1777
2026-01-26 2025-12-31 13F MICRON TECH common 595112103 4,869 357 7.91 1,672 97.40 0.0181
2025-10-31 2025-09-30 13F MICRON TECHNOLOGY common 595112103 4,512 214 4.98 847 60.11 0.0096
2025-07-30 2025-06-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 4,298 2,966 222.67 530 360.00 0.0064
2025-05-02 2025-03-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 1,332 -5 -0.37 116 2.68 0.0016
2025-02-11 2024-12-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 1,337 -144 -9.72 113 -26.80 0.0015
2024-10-21 2024-09-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 1,481 271 22.40 154 -3.77 0.0021
2024-07-29 2024-06-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 1,210 920 317.24 159 367.65 0.0023
2024-05-02 2024-03-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 290 0 0.00 34 41.67 0.0005
2024-01-11 2023-12-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 290 -580 -66.67 25 -59.32 0.0004
2023-10-27 2023-09-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 870 710 443.75 59 490.00 0.0011
2023-07-24 2023-06-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 160 -908 -85.02 10 -84.37 0.0002
2023-04-21 2023-03-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 1,068 1,068 64 0.0012
2023-01-25 2022-12-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 0 -78 -100.00 0 -100.00
2022-10-21 2022-09-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 78 -110 -58.51 4 -60.00 0.0001
2022-07-28 2022-06-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 188 5 2.73 10 -28.57 0.0002
2022-04-29 2022-03-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 183 113 161.43 14 100.00 0.0002
2022-01-19 2021-12-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 70 -300 -81.08 7 -73.08 0.0001
2021-11-01 2021-09-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 370 -10,200 -96.50 26 -97.10 0.0005
2021-07-29 2021-06-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 10,570 0 0.00 898 -3.65 0.0160
2021-04-26 2021-03-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 10,570 216 2.09 932 19.64 0.0181
2021-01-29 2020-12-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 10,354 0 0.00 779 60.29 0.0166
2020-10-30 2020-09-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 10,354 10,200 6,623.38 486 5,975.00 0.0116
2020-07-10 2020-06-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 154 -540 -77.81 8 -72.41 0.0002
2020-04-27 2020-03-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 694 -281 -28.82 29 -44.23 0.0009
2020-01-31 2019-12-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 975 181 22.80 52 52.94 0.0014
2019-10-18 2019-09-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 794 425 115.18 34 142.86 0.0010
2019-07-23 2019-06-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 369 150 68.49 14 55.56 0.0004
2019-04-29 2019-03-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 219 -181 -45.25 9 -30.77 0.0003
2019-02-07 2018-12-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 400 -163 -28.95 13 -48.00 0.0004
2018-10-23 2018-09-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 563 105 22.93 25 4.17 0.0008
2018-07-27 2018-06-30 13F/A-1 MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 458 224 95.73 24 100.00 0.0008
2018-07-20 2018-06-30 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 722 488 24
2018-05-01 2018-03-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 234 0 0.00 12 20.00 0.0004
2018-02-07 2017-12-31 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 234 0 0.00 10 11.11 0.0003
2017-10-23 2017-09-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 234 34 17.00 9 50.00 0.0003
2017-07-20 2017-06-30 13F MICRON TECHNOLOGY INC COM US LARGE-CAP EQUITIES 595112103 200 0 0.00 6 0.00 0.0002
2017-04-26 2017-03-31 13F MICRON TECHNOLOGY US LARGE CAP EQUITIES 595112103 200 0 0.00 6 50.00 0.0002
2017-01-18 2016-12-31 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 200 -272 -57.63 4 -50.00 0.0002
2016-11-10 2016-09-30 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 472 -115 -19.59 8 0.00 0.0003
2016-07-28 2016-06-30 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 587 0 0.00 8 33.33 0.0004
2016-04-28 2016-03-31 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 587 0 0.00 6 -25.00 0.0003
2016-02-10 2015-12-31 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 587 200 51.68 8 33.33 0.0004
2015-11-12 2015-09-30 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 387 0 0.00 6 -14.29 0.0003
2015-08-13 2015-06-30 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 387 0 0.00 7 -30.00 0.0003
2015-05-05 2015-03-31 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 387 387 0.00 10 42.86 0.0005
2015-02-04 2014-12-31 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 0 -722 -100.00 0 -100.00
2014-11-07 2014-09-30 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 722 0 0.00 25 4.17 0.0012
2014-08-04 2014-06-30 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 722 -700 -49.23 24 -29.41 0.0012
2014-05-01 2014-03-31 13F MICRON TECHNOLOGY INC COM US LARGE CAP EQUITIES 595112103 1,422 152 11.97 34 21.43 0.0017
2014-02-05 2013-12-31 13F MICRON TECHNOLOGY INC COM US SMALL AND MID-CAP EQUITIES 595112103 1,270 0 0.00 28 27.27 0.0014
2013-11-18 2013-09-30 13F MICRON TECHNOLOGY COM 595112103 1,270 0 0.00 22 22.22 0.0012
2013-08-14 2013-06-30 13F MICRON TECHNOLOGY COM 595112103 1,270 1,270 18 0.0010
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.