Micron Technology, Inc.
US ˙ NasdaqGS ˙ US5951121038

SecurityMU / Micron Technology, Inc.
InstitutionIng Groep Nv
Latest Disclosed Ownership874,175 shares
Latest Disclosed Value $ 295,331,282
Ing Groep Nv reports 136.45% increase in ownership of MU / Micron Technology, Inc.

On May 11, 2026 - Ing Groep Nv filed a 13F-HR form disclosing ownership of 874,175 shares of Micron Technology, Inc. (US:MU) valued at $295,331,282 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 369,708 shares of Micron Technology, Inc.. This represents a change in shares of 136.45% during the quarter. The current value of the position is $943,733,105 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)
2026-05-11 2026-03-31 13F MICRON TECHNOLOGY COM 595112103 874,175 504,467 136.45 295,331 179.89 1.8060
2026-02-11 2025-12-31 13F MICRON TECHNOLOGY COM 595112103 369,708 -266,808 -41.92 105,518 -0.92 0.6364
2025-11-06 2025-09-30 13F MICRON TECHNOLOGY COM 595112103 636,516 497,051 356.40 106,502 519.59 0.5762
2025-08-06 2025-06-30 13F MICRON TECHNOLOGY COM 595112103 139,465 114,711 463.40 17,189 699.49 0.1046
2025-05-09 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 24,754 -883,453 -97.27 2,151 -97.19 0.0149
2025-02-03 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 908,207 -118,602 -11.55 76,435 -28.22 0.5151
2024-11-06 2024-09-30 13F MICRON TECHNOLOGY COM 595112103 1,026,809 126,678 14.07 106,490 -10.05 0.6189
2024-08-13 2024-06-30 13F MICRON TECHNOLOGY COM 595112103 900,131 -263,375 -22.64 118,394 -13.68 0.7023
2024-05-10 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 1,163,506 132,603 12.86 137,166 55.91 0.9403
2024-02-08 2023-12-31 13F MICRON TECHNOLOGY COM 595112103 1,030,903 593,657 135.77 87,977 195.77 0.7067
2023-10-27 2023-09-30 13F MICRON TECHNOLOGY COM 595112103 437,246 -187,839 -30.05 29,746 -24.60 0.2625
2023-08-07 2023-06-30 13F MICRON TECHNOLOGY COM 595112103 625,085 102,250 19.56 39,449 25.05 0.2992
2023-05-09 2023-03-31 13F MICRON TECHNOLOGY COM 595112103 522,835 83,655 19.05 31,548 43.72 0.3063
2023-02-13 2022-12-31 13F MICRON TECHNOLOGY COM 595112103 439,180 28,219 6.87 21,950 6.61 0.2203
2022-11-14 2022-09-30 13F MICRON TECHNOLOGY COM 595112103 410,961 131,977 47.31 20,589 33.50 0.3446
2022-08-08 2022-06-30 13F MICRON TECHNOLOGY COM 595112103 278,984 32,319 13.10 15,422 -19.73 0.1783
2022-05-13 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 246,665 -1,073,813 -81.32 19,213 -84.38 0.1937
2022-02-11 2021-12-31 13F MICRON TECHNOLOGY COM 595112103 1,320,478 1,205,066 1,044.14 123,003 1,401.50 1.1002
2021-11-02 2021-09-30 13F MICRON TECHNOLOGY COM 595112103 115,412 3,534 3.16 8,192 -13.83 0.1052
2021-08-13 2021-06-30 13F MICRON TECHNOLOGY COM 595112103 111,878 37,811 51.05 9,507 45.52 0.1515
2021-05-12 2021-03-31 13F MICRON TECHNOLOGY COM 595112103 74,067 228 0.31 6,533 17.69 0.1354
2021-02-11 2020-12-31 13F MICRON TECHNOLOGY COM 595112103 73,839 49,251 200.31 5,551 380.61 0.1239
2020-11-12 2020-09-30 13F MICRON TECHNOLOGY COM 595112103 24,588 15,181 161.38 1,155 138.14 0.0476
2020-08-13 2020-06-30 13F MICRON TECHNOLOGY COM 595112103 9,407 -10,852 -53.57 485 -43.08 0.0209
2020-05-06 2020-03-31 13F MICRON TECHNOLOGY COM 595112103 20,259 -56,438 -73.59 852 -79.35 0.0364
2020-02-10 2019-12-31 13F MICRON TECHNOLOGY COM 595112103 76,697 63,548 483.29 4,125 632.68 0.1255
2019-11-08 2019-09-30 13F MICRON TECHNOLOGY COM 595112103 13,149 -242,594 -94.86 563 -94.30 0.0143
2019-08-12 2019-06-30 13F MICRON TECHNOLOGY COM 595112103 255,743 255,743 1,844.96 9,869 1,652.93 0.1720
2019-05-13 2019-03-31 13F MICRON TECHNOLOGY COM 595112103 0 -278,956 -100.00 0 -100.00
2019-02-13 2018-12-31 13F MICRON TECHNOLOGY COM 595112103 278,956 233,779 517.47 8,851 333.24 0.1917
2018-11-06 2018-09-30 13F MICRON TECHNOLOGY COM 595112103 45,177 -109,907 -70.87 2,043 -74.88 0.0353
2018-08-10 2018-06-30 13F MICRON TECHNOLOGY COM 595112103 155,084 -9,771 -5.93 8,133 -5.39 0.1555
2018-05-07 2018-03-31 13F MICRON TECHNOLOGY COM 595112103 164,855 -1,281 -0.77 8,596 25.82 0.1556
2018-02-06 2017-12-31 13F MICRON TECHNOLOGY COM 595112103 166,136 166,136 0.78 6,832 -20.52 0.1139
2017-11-08 2017-09-30 13F MICRON TECHNOLOGY COM 595112103 0 -89,510 -100.00 0 -100.00
2017-07-25 2017-06-30 13F MICRON TECHNOLOGY COM 595112103 89,510 -52,759 -37.08 2,673 -35.00 0.0512
2017-05-01 2017-03-31 13F MICRON TECHNOLOGY COM 595112103 142,269 113,588 396.04 4,112 543.51 0.0746
2017-02-06 2016-12-31 13F MICRON TECHNOLOGY COM 595112103 28,681 28,681 -79.84 639 -84.46 0.0120
2016-11-14 2016-09-30 13F MICRON TECHNOLOGY COM 595112103 0 -147,467 -100.00 0 -100.00
2016-07-27 2016-06-30 13F MICRON TECHNOLOGY COM 595112103 147,467 10,487 7.66 2,028 41.42 0.0273
2016-05-12 2016-03-31 13F MICRON TECHNOLOGY COM 595112103 136,980 -31,041 -18.47 1,434 -39.77 0.0179
2016-02-12 2015-12-31 13F MICRON TECHNOLOGY COM 595112103 168,021 25,518 17.91 2,381 11.63 0.0143
2015-12-09 2015-09-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 142,503 -113,595 -44.36 2,133 -55.79 0.0148
2015-11-10 2015-09-30 13F MICRON TECHNOLOGY COM 595112103 142,503 2,133
2015-08-10 2015-06-30 13F MICRON TECHNOLOGY COM 595112103 256,098 -135,942 -34.68 4,825 -54.64 0.0261
2015-05-14 2015-03-31 13F MICRON TECHNOLOGY COM 595112103 392,040 372,452 1,901.43 10,636 1,450.44 0.0534
2015-02-17 2014-12-31 13F MICRON TECHNOLOGY COM 595112103 19,588 6,607 50.90 686 123.45 0.0032
2014-05-14 2014-03-31 13F MICRON TECHNOLOGY INC COM COM 595112103 12,981 -75,669 -85.36 307 -65.27 0.0016
2013-05-30 2013-03-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 88,650 88,650 884 0.0129
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.