Micron Technology, Inc.
PE ˙ BVL ˙ LU1650489385
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityPE:MU / Micron Technology, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership1,903,681 shares
Latest Disclosed Value $ 643,139,460
Rhumbline Advisers reports 2.39% decrease in ownership of MU / Micron Technology, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 1,903,681 shares of Micron Technology, Inc. (PE:MU) valued at $643,139,460 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,950,377 shares of Micron Technology, Inc.. This represents a change in shares of -2.39% during the quarter.

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)
2026-05-12 2026-03-31 13F MICRON TECHNOLOGY COM 595112103 1,903,681 -46,696 -2.39 643,139 15.54 0.5502
2026-02-13 2025-12-31 13F MICRON TECHNOLOGY COM 595112103 1,950,377 -86,867 -4.26 556,657 63.30 0.4500
2025-11-06 2025-09-30 13F MICRON TECHNOLOGY COM 595112103 2,037,244 -1,885 -0.09 340,872 35.63 0.2738
2025-08-12 2025-06-30 13F MICRON TECHNOLOGY COM 595112103 2,039,129 -7,620 -0.37 251,323 41.32 0.2152
2025-05-29 2025-03-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 2,046,749 30,143 1.49 177,842 4.79 0.1664
2025-04-08 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 2,046,749 30,143 177,842 0.1664
2025-05-29 2024-12-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 2,016,606 -27,425 -1.34 169,717 -19.94 0.1518
2025-01-30 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 2,016,606 -27,425 169,717 0.1518
2024-11-12 2024-09-30 13F MICRON TECHNOLOGY COM 595112103 2,044,031 -3,547 -0.17 211,986 -21.29 0.1912
2024-08-01 2024-06-30 13F MICRON TECHNOLOGY COM 595112103 2,047,578 763 0.04 269,318 11.61 0.2531
2024-05-09 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 2,046,815 13,953 0.69 241,299 39.09 0.2317
2024-02-08 2023-12-31 13F MICRON TECHNOLOGY COM 595112103 2,032,862 -56,448 -2.70 173,484 22.06 0.1818
2023-11-09 2023-09-30 13F MICRON TECHNOLOGY COM 595112103 2,089,310 -11,841 -0.56 142,136 7.19 0.1650
2023-08-08 2023-06-30 13F MICRON TECHNOLOGY COM 595112103 2,101,151 13,518 0.65 132,604 105,982.40 0.1485
2023-05-11 2023-03-31 13F MICRON TECHNOLOGY COM 595112103 2,087,633 -10,928 -0.52 126 -99.88 0.1554
2023-02-14 2022-12-31 13F MICRON TECHNOLOGY COM 595112103 2,098,561 59,418 2.91 104,886 2.67 0.1410
2022-11-10 2022-09-30 13F MICRON TECHNOLOGY COM 595112103 2,039,143 81,591 4.17 102,161 -5.59 0.1522
2022-08-11 2022-06-30 13F MICRON TECHNOLOGY COM 595112103 1,957,552 62,236 3.28 108,213 -26.70 0.1579
2022-05-12 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 1,895,316 31,893 1.71 147,626 -14.95 0.1900
2022-02-10 2021-12-31 13F MICRON TECHNOLOGY COM 595112103 1,863,423 7,509 0.40 173,578 31.77 0.2127
2021-11-12 2021-09-30 13F MICRON TECHNOLOGY COM 595112103 1,855,914 -55,301 -2.89 131,733 -18.89 0.1783
2021-08-05 2021-06-30 13F MICRON TECHNOLOGY COM 595112103 1,911,215 -62,175 -3.15 162,415 -6.70 0.2131
2021-05-06 2021-03-31 13F MICRON TECHNOLOGY COM 595112103 1,973,390 -156,031 -7.33 174,073 8.73 0.2365
2021-02-10 2020-12-31 13F MICRON TECHNOLOGY COM 595112103 2,129,421 -64,381 -2.93 160,090 55.40 0.2210
2020-11-12 2020-09-30 13F MICRON TECHNOLOGY COM 595112103 2,193,802 -17,877 -0.81 103,021 -9.59 0.1614
2020-08-13 2020-06-30 13F MICRON TECHNOLOGY COM 595112103 2,211,679 -61,332 -2.70 113,946 19.19 0.1903
2020-05-06 2020-03-31 13F MICRON TECHNOLOGY COM 595112103 2,273,011 65,061 2.95 95,603 -19.49 0.2004
2020-02-05 2019-12-31 13F MICRON TECHNOLOGY COM 595112103 2,207,950 236,964 12.02 118,744 40.60 0.1986
2019-10-23 2019-09-30 13F MICRON TECHNOLOGY COM 595112103 1,970,986 45,574 2.37 84,457 13.67 0.1543
2019-08-14 2019-06-30 13F MICRON TECHNOLOGY COM 595112103 1,925,412 -71,191 -3.57 74,302 -9.96 0.1395
2019-05-01 2019-03-31 13F MICRON TECHNOLOGY COM 595112103 1,996,603 52,676 2.71 82,520 33.79 0.1598
2019-01-31 2018-12-31 13F MICRON TECHNOLOGY COM 595112103 1,943,927 -54,500 -2.73 61,681 -31.76 0.1342
2018-11-07 2018-09-30 13F MICRON TECHNOLOGY COM 595112103 1,998,427 -20,379 -1.01 90,389 -14.62 0.1746
2018-08-06 2018-06-30 13F MICRON TECHNOLOGY COM 595112103 2,018,806 71,252 3.66 105,866 4.26 0.2135
2018-05-02 2018-03-31 13F MICRON TECHNOLOGY COM 595112103 1,947,554 10,158 0.52 101,545 27.46 0.2121
2018-02-09 2017-12-31 13F MICRON TECHNOLOGY COM 595112103 1,937,396 95,133 5.16 79,666 9.95 0.1618
2017-11-06 2017-09-30 13F MICRON TECHNOLOGY COM 595112103 1,842,263 84,562 4.81 72,456 38.05 0.1575
2017-08-02 2017-06-30 13F MICRON TECHNOLOGY COM 595112103 1,757,701 -59,852 -3.29 52,485 -0.08 0.1198
2017-05-02 2017-03-31 13F MICRON TECHNOLOGY COM 595112103 1,817,553 49,867 2.82 52,527 35.56 0.1227
2017-01-27 2016-12-31 13F MICRON TECHNOLOGY COM 595112103 1,767,686 185,155 11.70 38,748 37.71 0.0982
2016-11-08 2016-09-30 13F MICRON TECHNOLOGY COM 595112103 1,582,531 71,055 4.70 28,137 35.29 0.0775
2016-08-11 2016-06-30 13F MICRON TECHNOLOGY COM 595112103 1,511,476 -8,556 -0.56 20,798 30.68 0.0616
2016-05-02 2016-03-31 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,520,032 60,721 4.16 15,915 -22.98 0.0494
2016-02-03 2015-12-31 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,459,311 -2,396 -0.16 20,664 -5.63 0.0665
2015-11-04 2015-09-30 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,461,707 31,976 2.24 21,896 -18.71 0.0745
2015-08-04 2015-06-30 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,429,731 -292,540 -16.99 26,936 -42.35 0.0859
2015-05-12 2015-03-31 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,722,271 -16,169 -0.93 46,725 -23.23 0.1348
2015-02-06 2014-12-31 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,738,440 -34,984 -1.97 60,863 0.17 0.1768
2014-11-12 2014-09-30 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,773,424 -29,035 -1.61 60,758 2.30 0.1825
2014-08-06 2014-06-30 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,802,459 406,141 29.09 59,391 79.77 0.1743
2014-05-06 2014-03-31 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,396,318 -19,500 -1.38 33,037 7.24 0.0980
2014-02-03 2013-12-31 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,415,818 -66,690 -4.50 30,808 18.95 0.0909
2013-11-05 2013-09-30 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,482,508 17,111 1.17 25,899 23.33 0.0802
2013-08-07 2013-06-30 13F MICRON TECHNOLOGY INC COMMON S COM 595112103 1,465,397 1,465,397 20,999 0.0675
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.