Micron Technology, Inc.
PE ˙ BVL ˙ LU1650489385
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityPE:MU / Micron Technology, Inc.
InstitutionPrincipal Financial Group Inc
Latest Disclosed Ownership1,572,997 shares
Latest Disclosed Value $ 531,421,305
Principal Financial Group Inc reports 26.18% increase in ownership of MU / Micron Technology, Inc.

On May 4, 2026 - Principal Financial Group Inc filed a 13F-HR form disclosing ownership of 1,572,997 shares of Micron Technology, Inc. (PE:MU) valued at $531,421,305 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 1,246,628 shares of Micron Technology, Inc.. This represents a change in shares of 26.18% 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)
2026-05-04 2026-03-31 13F MICRON TECHNOLOGY COM 595112103 1,572,997 326,369 26.18 531,421 49.36 0.1449
2026-02-02 2025-12-31 13F MICRON TECHNOLOGY COM 595112103 1,246,628 41,744 3.46 355,800 76.49 0.1817
2025-11-04 2025-09-30 13F MICRON TECHNOLOGY COM 595112103 1,204,884 -6,071 -0.50 201,601 35.08 0.1017
2025-08-08 2025-06-30 13F MICRON TECHNOLOGY COM 595112103 1,210,955 -35,112 -2.82 149,250 37.85 0.0789
2025-04-28 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 1,246,067 -1,322 -0.11 108,271 3.13 0.0608
2025-01-31 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 1,247,389 -8,542 -0.68 104,980 -19.40 0.0572
2024-10-31 2024-09-30 13F MICRON TECHNOLOGY COM 595112103 1,255,931 52,912 4.40 130,253 -17.68 0.0718
2024-07-29 2024-06-30 13F MICRON TECHNOLOGY COM 595112103 1,203,019 -16,523 -1.35 158,233 10.06 0.0940
2024-04-29 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 1,219,542 14,944 1.24 143,772 39.86 0.0845
2024-02-07 2023-12-31 13F MICRON TECHNOLOGY COM 595112103 1,204,598 -3,098 -0.26 102,800 25.12 0.0655
2023-11-02 2023-09-30 13F MICRON TECHNOLOGY COM 595112103 1,207,696 -3,808 -0.31 82,160 7.46 0.0590
2023-08-07 2023-06-30 13F MICRON TECHNOLOGY COM 595112103 1,211,504 -47,532 -3.78 76,458 0.64 0.0523
2023-05-09 2023-03-31 13F MICRON TECHNOLOGY COM 595112103 1,259,036 21,500 1.74 75,970 22.83 0.0543
2023-02-09 2022-12-31 13F MICRON TECHNOLOGY COM 595112103 1,237,536 -51,365 -3.99 61,852 -4.22 0.0466
2022-11-09 2022-09-30 13F MICRON TECHNOLOGY COM 595112103 1,288,901 -42,459 -3.19 64,574 -12.26 0.0513
2022-08-10 2022-06-30 13F MICRON TECHNOLOGY COM 595112103 1,331,360 24,051 1.84 73,597 -27.72 0.0545
2022-05-09 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 1,307,309 -11,796 -0.89 101,827 -17.13 0.0404
2022-05-09 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 1,270,699 98,975
2022-02-09 2021-12-31 13F MICRON TECHNOLOGY COM 595112103 1,319,105 -38,487 -2.83 122,875 27.51 0.0733
2021-11-09 2021-09-30 13F MICRON TECHNOLOGY COM 595112103 1,357,592 -18,181 -1.32 96,362 -17.58 0.0628
2021-08-10 2021-06-30 13F MICRON TECHNOLOGY COM 595112103 1,375,773 34,560 2.58 116,914 -1.18 0.0755
2021-05-10 2021-03-31 13F MICRON TECHNOLOGY COM 595112103 1,341,213 -70,037 -4.96 118,308 11.51 0.0835
2021-02-23 2020-12-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 1,411,250 -95,553 -6.34 106,098 49.94 0.0786
2021-02-08 2020-12-31 13F MICRON TECHNOLOGY COM 595112103 1,411,250 -95,553 106,098 41,740.5883
2020-11-06 2020-09-30 13F MICRON TECHNOLOGY COM 595112103 1,506,803 -82,791 -5.21 70,759 -13.60 0.0595
2020-08-05 2020-06-30 13F MICRON TECHNOLOGY COM 595112103 1,589,594 62,646 4.10 81,896 27.52 0.0726
2020-05-12 2020-03-31 13F MICRON TECHNOLOGY COM 595112103 1,526,948 -18,281 -1.18 64,223 -22.72 0.0711
2020-02-05 2019-12-31 13F MICRON TECHNOLOGY COM 595112103 1,545,229 -20,991 -1.34 83,103 23.83 0.0692
2019-11-13 2019-09-30 13F MICRON TECHNOLOGY COM 595112103 1,566,220 -55,370 -3.41 67,112 7.25 0.0592
2019-08-12 2019-06-30 13F MICRON TECHNOLOGY COM 595112103 1,621,590 -1,449 -0.09 62,577 -6.71 0.0563
2019-05-10 2019-03-31 13F MICRON TECHNOLOGY COM 595112103 1,623,039 -80,371 -4.72 67,080 24.11 0.0625
2019-02-14 2018-12-31 13F MICRON TECHNOLOGY COM 595112103 1,703,410 -72,325 -4.07 54,049 -32.70 0.0576
2018-11-14 2018-09-30 13F MICRON TECHNOLOGY COM 595112103 1,775,735 -13,640 -0.76 80,316 -14.41 0.0708
2018-08-13 2018-06-30 13F MICRON TECHNOLOGY COM 595112103 1,789,375 20,507 1.16 93,835 1.74 0.0862
2018-05-14 2018-03-31 13F MICRON TECHNOLOGY COM 595112103 1,768,868 24,882 1.43 92,229 28.61 0.0886
2018-02-12 2017-12-31 13F MICRON TECHNOLOGY COM 595112103 1,743,986 -338,761 -16.27 71,713 -12.45 0.0660
2017-11-02 2017-09-30 13F MICRON TECHNOLOGY COM 595112103 2,082,747 493,767 31.07 81,915 72.65 0.0794
2017-08-08 2017-06-30 13F MICRON TECHNOLOGY COM 595112103 1,588,980 -8,976 -0.56 47,447 2.74 0.0476
2017-05-11 2017-03-31 13F MICRON TECHNOLOGY COM 595112103 1,597,956 13,177 0.83 46,182 32.94 0.0556
2017-02-13 2016-12-31 13F MICRON TECHNOLOGY COM 595112103 1,584,779 -17,387 -1.09 34,739 21.95 0.0441
2016-11-10 2016-09-30 13F MICRON TECHNOLOGY COM 595112103 1,602,166 50,561 3.26 28,487 33.43 0.0376
2016-08-09 2016-06-30 13F MICRON TECHNOLOGY COM 595112103 1,551,605 -81,258 -4.98 21,350 24.88 0.0298
2016-05-10 2016-03-31 13F MICRON TECHNOLOGY COM 595112103 1,632,863 208,481 14.64 17,096 -15.24 0.0248
2016-02-09 2015-12-31 13F MICRON TECHNOLOGY COM 595112103 1,424,382 4,945 0.35 20,170 -5.14 0.0300
2015-11-12 2015-09-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 1,419,437 -36,711 -2.52 21,263 -22.49 0.0334
2015-11-09 2015-09-30 13F MICRON TECHNOLOGY COM 595112103 1,419,437 21,263
2015-08-10 2015-06-30 13F MICRON TECHNOLOGY COM 595112103 1,456,148 -119,247 -7.57 27,434 -35.81 0.0409
2015-05-14 2015-03-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 1,575,395 -63,785 -3.89 42,739 -25.53 0.0637
2015-05-12 2015-03-31 13F MICRON TECHNOLOGY COM 595112103 1,575,395 42,740
2015-02-12 2014-12-31 13F MICRON TECHNOLOGY COM 595112103 1,639,180 67,246 4.28 57,388 6.56 0.0892
2014-11-13 2014-09-30 13F MICRON TECHNOLOGY COM 595112103 1,571,934 90,023 6.07 53,855 10.29 0.0914
2014-08-12 2014-06-30 13F MICRON TECHNOLOGY COM 595112103 1,481,911 -29,611 -1.96 48,829 36.53 0.0821
2014-05-13 2014-03-31 13F MICRON TECHNOLOGY COM 595112103 1,511,522 219,973 17.03 35,763 27.25 0.0638
2014-02-12 2013-12-31 13F MICRON TECHNOLOGY COM 595112103 1,291,549 15,015 1.18 28,104 26.02 0.0525
2013-11-05 2013-09-30 13F MICRON TECHNOLOGY COM 595112103 1,276,534 -58,556 -4.39 22,301 16.56 0.0461
2013-08-12 2013-06-30 13F MICRON TECHNOLOGY COM 595112103 1,335,090 1,335,090 19,132 0.0424
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.