Micron Technology, Inc.
MX ˙ BMV ˙ LU1650489385
SecurityMX:MU / Micron Technology, Inc.
InstitutionFirst Dallas Securities Inc.
Latest Disclosed Ownership7,945 shares
Latest Disclosed Value $ 2,684,139
First Dallas Securities Inc. reports 38.30% decrease in ownership of MU / Micron Technology, Inc.

On April 27, 2026 - First Dallas Securities Inc. filed a 13F-HR form disclosing ownership of 7,945 shares of Micron Technology, Inc. (MX:MU) valued at $2,684,139 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 12,876 shares of Micron Technology, Inc.. This represents a change in shares of -38.30% 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)
2026-04-27 2026-03-31 13F Micron Technology COM 595112103 7,945 -4,931 -38.30 2,684 -26.95 0.9930
2026-02-11 2025-12-31 13F Micron Technology COM 595112103 12,876 221 1.75 3,675 73.55 1.3674
2026-02-11 2025-12-31 13F Micron Technology COM 595112103 12,876 3,675
2025-11-05 2025-09-30 13F Micron Technology COM 595112103 12,655 -1,050 -7.66 2,117 25.34 0.7932
2025-08-07 2025-06-30 13F Micron Technology COM 595112103 13,705 -925 -6.32 1,689 32.89 0.6676
2025-05-16 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 14,630 630 4.50 1,271 7.89 0.5311
2025-01-24 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 14,000 -900 -6.04 1,178 -23.75 0.4801
2024-11-18 2024-09-30 13F MICRON TECHNOLOGY COM 595112103 14,900 -650 -4.18 1,545 -24.45 0.6459
2024-08-02 2024-06-30 13F MICRON TECHNOLOGY COM 595112103 15,550 -2,125 -12.02 2,045 102,150.00 0.8977
2024-04-16 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 17,675 -6,575 -27.11 2 0.00 0.9586
2024-02-13 2023-12-31 13F MICRON TECHNOLOGY COM 595112103 24,250 -67,002 -73.43 2 -66.67 1.0660
2023-11-14 2023-09-30 13F MICRON TECHNOLOGY COM 595112103 91,252 68,202 295.89 6 500.00 1.4215
2023-08-07 2023-06-30 13F MICRON TECHNOLOGY COM 595112103 23,050 500 2.22 1 0.00 0.8117
2023-05-15 2023-03-31 13F MICRON TECHNOLOGY COM 595112103 22,550 200 0.89 1 0.00 0.8029
2023-02-03 2022-12-31 13F MICRON TECHNOLOGY COM 595112103 22,350 10,200 83.95 1 -99.84 0.6733
2022-10-21 2022-09-30 13F MICRON TECHNOLOGY COM 595112103 12,150 615 5.33 609 -4.55 0.4184
2022-07-28 2022-06-30 13F MICRON TECHNOLOGY COM 595112103 11,535 7,335 174.64 638 95.11 0.4300
2022-05-12 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 4,200 0 0.00 327 -16.37 0.1847
2022-02-07 2021-12-31 13F MICRON TECHNOLOGY IN COM 595112103 4,200 0 0.00 391 31.21 0.2564
2021-10-06 2021-09-30 13F MICRON TECHNOLOGY IN COM 595112103 4,200 0 0.00 298 -16.53 0.2057
2021-07-06 2021-06-30 13F MICRON TECHNOLOGY IN COM 595112103 4,200 200 5.00 357 1.13 0.2340
2021-05-26 2021-03-31 13F MICRON TECHNOLOGY IN COM 595112103 4,000 0 0.00 353 17.28 0.3002
2021-02-01 2020-12-31 13F MICRON TECHNOLOGY IN COM 595112103 4,000 4,000 0.00 301 -14.73 0.2718
2020-05-04 2020-03-31 13F MICRON TECHNOLOGY IN COM 595112103 0 -8,525 -100.00 0 -100.00
2020-02-04 2019-12-31 13F MICRON TECHNOLOGY IN COM 595112103 8,525 -2,000 -19.00 458 1.55 0.3909
2019-11-14 2019-09-30 13F MICRON TECHNOLOGY IN COM 595112103 10,525 -5,025 -32.32 451 -24.83 0.3999
2019-08-22 2019-06-30 13F MICRON TECHNOLOGY IN COM 595112103 15,550 -250 -1.58 600 -8.12 0.5248
2019-05-17 2019-03-31 13F Micron Technology COM 595112103 15,800 -1,650 -9.46 653 17.03 0.4696
2019-02-11 2018-12-31 13F Micron Technology COM 595112103 17,450 175 1.01 558 -28.64 0.4651
2018-10-31 2018-09-30 13F Micron Technology COM 595112103 17,275 2,150 14.21 782 -1.51 0.4886
2018-07-31 2018-06-30 13F Micron Technology COM 595112103 15,125 -2,525 -14.31 794 -13.03 0.5077
2018-05-04 2018-03-31 13F Micron Technology COM 595112103 17,650 175 1.00 913 26.98 0.5962
2018-02-07 2017-12-31 13F MICRON TECHNOLOGY COM 595112103 17,475 -900 -4.90 719 -0.55 0.4572
2017-11-07 2017-09-30 13F Micron Technology COM 595112103 18,375 -3,950 -17.69 723 8.40 0.5011
2017-08-14 2017-06-30 13F Micron Technology COM 595112103 22,325 -3,025 -11.93 667 -8.88 0.4873
2017-05-05 2017-03-31 13F Micron Technology COM 595112103 25,350 -11,850 -31.85 732 -10.29 0.5104
2017-01-11 2016-12-31 13F MICRON TECHNOLOGY COM 595112103 37,200 -15,150 -28.94 816 -12.26 0.5583
2016-11-15 2016-09-30 13F MICRON TECHNOLOGY COM 595112103 52,350 -19,200 -26.83 930 -5.58 0.6901
2016-07-26 2016-06-30 13F MICRON TECHNOLOGY COM 595112103 71,550 39,880 125.92 985 196.69 0.7605
2016-05-03 2016-03-31 13F MICRON TECHNOLOGY COM 595112103 31,670 1,500 4.97 332 -22.25 0.2686
2016-01-27 2015-12-31 13F MICRON TECHNOLOGY COM 595112103 30,170 -2,900 -8.77 427 -13.91 0.3497
2015-11-12 2015-09-30 13F MICRON TECHNOLOGY COM 595112103 33,070 21,450 184.60 496 126.48 0.4077
2015-07-27 2015-06-30 13F Micron Technology COM 595112103 11,620 -1,075 -8.47 219 -36.34 0.1579
2015-05-05 2015-03-31 13F/A-1 Micron Technology COM 595112103 12,695 -2,430 -16.07 344 -35.09 0.2399
2015-05-05 2015-03-31 13F Micron Technology COM 595112103 12,695 344
2015-02-17 2014-12-31 13F Micron Technology COM 595112103 15,125 675 4.67 530 7.07 0.3449
2014-11-12 2014-09-30 13F Micron Technology COM 595112103 14,450 -3,320 -18.68 495 -15.53 0.2940
2014-07-11 2014-06-30 13F MICRON TECHNOLOGY INC COM COM 595112103 17,770 -4,580 -20.49 586 10.78 0.3522
2014-04-15 2014-03-31 13F MICRON TECHNOLOGY INC COM COM 595112103 22,350 150 0.68 529 9.52 0.3532
2014-01-29 2013-12-31 13F MICRON TECHNOLOGY INC COM COM 595112103 22,200 22,200 483 0.3237
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.