Micron Technology, Inc.
MX ˙ BMV ˙ LU1650489385
SecurityMX:MU / Micron Technology, Inc.
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership318,244 shares
Latest Disclosed Value $ 107,526,601
Rockefeller Capital Management L.P. reports 13.44% decrease in ownership of MU / Micron Technology, Inc.

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 318,244 shares of Micron Technology, Inc. (MX:MU) valued at $107,526,601 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 367,655 shares of Micron Technology, Inc.. This represents a change in shares of -13.44% 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)
2026-05-14 2026-03-31 13F MICRON TECHNOLOGY COM 595112103 318,244 -49,411 -13.44 107,527 2.47 0.0988
2026-03-16 2025-12-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 367,655 -112,423 -23.42 104,933 30.63 0.1890
2026-02-14 2025-12-31 13F MICRON TECHNOLOGY COM 595112103 367,659 -112,419 104,940 0.0958
2025-11-14 2025-09-30 13F MICRON TECHNOLOGY COM 595112103 480,078 1,594 0.33 80,327 36.21 0.1571
2025-08-14 2025-06-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 478,484 124,547 35.19 58,973 91.76 0.1293
2025-08-08 2025-06-30 13F MICRON TECHNOLOGY COM 595112103 338,569 -15,368 41,729 0.0526
2025-05-14 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 353,937 35,677 11.21 30,754 14.70 0.0759
2025-02-13 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 318,260 -53,268 -14.34 26,812 -30.44 0.0694
2024-11-14 2024-09-30 13F MICRON TECHNOLOGY COM 595112103 371,528 -310,870 -45.56 38,542 -57.05 0.1037
2024-08-12 2024-06-30 13F MICRON TECHNOLOGY COM 595112103 682,398 -84,244 -10.99 89,745 -0.70 0.2551
2024-05-14 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 766,642 -18,327 -2.33 90,379 34.92 0.2638
2024-02-14 2023-12-31 13F MICRON TECHNOLOGY COM 595112103 784,969 10,295 1.33 66,989 27.11 0.2238
2023-11-14 2023-09-30 13F MICRON TECHNOLOGY COM 595112103 774,674 22,843 3.04 52,701 11.07 0.2033
2023-08-14 2023-06-30 13F MICRON TECHNOLOGY COM 595112103 751,831 -143,745 -16.05 47,448 87,766.67 0.1838
2023-05-16 2023-03-31 13F MICRON TECHNOLOGY COM 595112103 895,576 -48,105 -5.10 54 -99.89 0.2324
2023-03-06 2022-12-31 13F MICRON TECHNOLOGY COM 595112103 943,681 -139,406 -12.87 47,162 -13.08 0.2370
2022-11-02 2022-09-30 13F MICRON TECHNOLOGY COM 595112103 1,083,087 -135,287 -11.10 54,260 -19.44 0.2804
2022-08-12 2022-06-30 13F MICRON TECHNOLOGY COM 595112103 1,218,374 48,207 4.12 67,350 -26.11 0.3579
2022-05-13 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 1,170,167 135,932 13.14 91,143 -5.39 0.4395
2022-02-14 2021-12-31 13F MICRON TECHNOLOGY COM 595112103 1,034,235 5,449 0.53 96,337 31.93 0.4496
2021-11-12 2021-09-30 13F MICRON TECHNOLOGY COM 595112103 1,028,786 58,790 6.06 73,021 -11.41 0.3837
2021-08-10 2021-06-30 13F MICRON TECHNOLOGY COM 595112103 969,996 110,880 12.91 82,429 8.77 0.4644
2021-05-11 2021-03-31 13F MICRON TECHNOLOGY COM 595112103 859,116 83,828 10.81 75,781 30.02 0.5128
2021-02-12 2020-12-31 13F MICRON TECHNOLOGY COM 595112103 775,288 34,995 4.73 58,285 67.66 0.4414
2020-11-13 2020-09-30 13F MICRON TECHNOLOGY COM 595112103 740,293 -3,398 -0.46 34,763 -9.27 0.3256
2020-08-12 2020-06-30 13F MICRON TECHNOLOGY COM 595112103 743,691 169,360 29.49 38,316 58.62 0.4009
2020-05-12 2020-03-31 13F MICRON TECHNOLOGY COM 595112103 574,331 -12,721 -2.17 24,156 -23.49 0.3169
2020-02-07 2019-12-31 13F MICRON TECHNOLOGY COM 595112103 587,052 20,359 3.59 31,572 30.02 0.3936
2019-11-12 2019-09-30 13F MICRON TECHNOLOGY COM 595112103 566,693 -452 -0.08 24,282 10.95 0.3294
2019-08-09 2019-06-30 13F MICRON TECHNOLOGY COM 595112103 567,145 90,306 18.94 21,886 11.05 0.3052
2019-05-10 2019-03-31 13F MICRON TECHNOLOGY COM 595112103 476,839 476,014 57,698.67 19,708 72,892.59 0.2809
2019-02-12 2018-12-31 13F MICRON TECHNOLOGY COM 595112103 825 650 371.43 27 237.50 0.0005
2018-11-02 2018-09-30 13F Micron Technology Common 595112103 175 0 0.00 8 -11.11 0.0001
2018-07-31 2018-06-30 13F Micron Technology Common 595112103 175 175 9 0.0001
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.