Micron Technology, Inc.
MX ˙ BMV ˙ LU1650489385
SecurityMX:MU / Micron Technology, Inc.
InstitutionDaiwa Securities Group Inc.
Latest Disclosed Ownership1,884,021 shares
Latest Disclosed Value $ 636,497,655
Daiwa Securities Group Inc. ownership in MU / Micron Technology, Inc.

On May 13, 2026 - Daiwa Securities Group Inc. filed a 13F-HR form disclosing ownership of 1,884,021 shares of Micron Technology, Inc. (MX:MU) valued at $636,497,655 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 662,155 shares of Micron Technology, Inc.. This represents a change in shares of 184.53% during the quarter.

Daiwa Securities Group Inc. has a history of taking positions in derivatives of the underlying security (MU) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:MU / Micron Technology, Inc. Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F MICRON TECHNOLOGY COM 595112103 1,884,021 1,221,866 184.53 636,498 336,670.90 1.8299
2026-02-10 2025-12-31 13F MICRON TECHNOLOGY COM 595112103 662,155 313,866 90.12 189 225.86 0.6038
2025-11-14 2025-09-30 13F MICRON TECHNOLOGY COM 595112103 348,289 52,044 17.57 58 61.11 0.1967
2025-08-14 2025-06-30 13F MICRON TECHNOLOGY COM 595112103 296,245 21,974 8.01 37 56.52 0.1348
2025-05-13 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 274,271 22,900 9.11 24 9.52 0.1007
2025-02-07 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 251,371 20,520 8.89 21 -8.70 0.0945
2024-11-12 2024-09-30 13F MICRON TECHNOLOGY COM 595112103 230,851 13,035 5.98 24 -17.86 0.1106
2024-08-07 2024-06-30 13F MICRON TECHNOLOGY COM 595112103 217,816 -10,477 -4.59 29 7.69 0.1524
2024-05-02 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 228,293 -323,470 -58.62 27 52.94 0.1519
2024-01-31 2023-12-31 13F MICRON TECHNOLOGY COM 595112103 551,763 265,725 92.90 18 41.67 0.1098
2023-11-01 2023-09-30 13F MICRON TECHNOLOGY COM 595112103 286,038 -90,180 -23.97 13 0.00 0.0919
2023-07-31 2023-06-30 13F MICRON TECHNOLOGY COM 595112103 376,218 -72,225 -16.11 13 33.33 0.0856
2023-05-02 2023-03-31 13F MICRON TECHNOLOGY COM 595112103 448,443 93,051 26.18 10 50.00 0.0677
2023-02-06 2022-12-31 13F MICRON TECHNOLOGY COM 595112103 355,392 234,755 194.60 7 -99.90 0.0534
2022-11-02 2022-09-30 13F MICRON TECHNOLOGY COM 595112103 120,637 1,885 1.59 6,044 -37.93 0.0502
2022-08-09 2022-06-30 13F MICRON TECHNOLOGY COM 595112103 118,752 -108,109 -47.65 9,738 -45.59 0.0744
2022-04-29 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 226,861 116,748 106.03 17,897 74.49 0.0828
2022-04-29 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 334,225 10,479
2022-02-03 2021-12-31 13F MICRON TECHNOLOGY COM 595112103 110,113 -92,409 -45.63 10,257 8.59 0.0603
2021-11-05 2021-09-30 13F MICRON TECHNOLOGY COM 595112103 202,522 8,720 4.50 9,446 -8.95 0.0621
2021-08-06 2021-06-30 13F MICRON TECHNOLOGY COM 595112103 193,802 182 0.09 10,375 1.85 0.0699
2021-05-03 2021-03-31 13F MICRON TECHNOLOGY COM 595112103 193,620 114,936 146.07 10,187 41.86 0.0758
2021-02-04 2020-12-31 13F MICRON TECHNOLOGY COM 595112103 78,684 -68,234 -46.44 7,181 -7.37 0.0555
2020-11-02 2020-09-30 13F MICRON TECHNOLOGY COM 595112103 146,918 42,210 40.31 7,752 22.58 0.0702
2020-08-11 2020-06-30 13F MICRON TECHNOLOGY COM 595112103 104,708 0 0.00 6,324 42.24 0.1334
2020-05-14 2020-03-31 13F MICRON TECHNOLOGY COM 595112103 104,708 56,730 118.24 4,446 -23.17 0.0461
2020-01-31 2019-12-31 13F MICRON TECHNOLOGY COM 595112103 47,978 -57,730 -54.61 5,787 27.78 0.0478
2019-11-04 2019-09-30 13F MICRON TECHNOLOGY COM 595112103 105,708 17,650 20.04 4,529 9.16 0.0384
2019-07-24 2019-06-30 13F MICRON TECHNOLOGY COM 595112103 88,058 8,319 10.43 4,149 25.88 0.0367
2019-04-26 2019-03-31 13F MICRON TECHNOLOGY COM 595112103 79,739 24,243 43.68 3,296 -6.89 0.0288
2019-02-05 2018-12-31 13F MICRON TECHNOLOGY COM 595112103 55,496 -67,415 -54.85 3,540 -66.04 0.0340
2018-11-01 2018-09-30 13F MICRON TECHNOLOGY COM 595112103 122,911 -26,451 -17.71 10,424 -1.93 0.0873
2018-07-30 2018-06-30 13F MICRON TECHNOLOGY COM 595112103 149,362 -5,326 -3.44 10,629 21.95 0.0837
2018-05-02 2018-03-31 13F MICRON TECHNOLOGY COM 595112103 154,688 -30,462 -16.45 8,716 14.49 0.0698
2018-02-06 2017-12-31 13F MICRON TECHNOLOGY COM 595112103 185,150 89,305 93.18 7,613 101.94 0.0538
2017-11-02 2017-09-30 13F MICRON TECHNOLOGY COM 595112103 95,845 22,195 30.14 3,770 71.44 0.0258
2017-07-28 2017-06-30 13F MICRON TECHNOLOGY COM 595112103 73,650 44,800 155.29 2,199 163.67 0.0142
2017-05-02 2017-03-31 13F MICRON TECHNOLOGY COM 595112103 28,850 -7,250 -20.08 834 5.44 0.0052
2017-02-01 2016-12-31 13F MICRON TECHNOLOGY COM 595112103 36,100 10,100 38.85 791 71.21 0.0051
2017-01-10 2016-09-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 26,000 1,100 4.42 462 34.69 0.0028
2016-11-04 2016-09-30 13F MICRON TECHNOLOGY COM 595112103 26,000 462
2016-07-25 2016-06-30 13F MICRON TECHNOLOGY COM 595112103 24,900 0 0.00 343 31.42 0.0021
2016-05-12 2016-03-31 13F MICRON TECHNOLOGY COM 595112103 24,900 0 0.00 261 -26.06 0.0016
2016-02-04 2015-12-31 13F MICRON TECHNOLOGY COM 595112103 24,900 -280,110 -91.84 353 -92.27 0.0023
2015-11-10 2015-09-30 13F MICRON TECHNOLOGY COM 595112103 305,010 280,110 1,124.94 4,569 874.20 0.0325
2015-08-05 2015-06-30 13F MICRON TECHNOLOGY COM 595112103 24,900 -8,000 -24.32 469 -47.48 0.0033
2015-05-12 2015-03-31 13F MICRON TECHNOLOGY COM 595112103 32,900 -50,600 -60.60 893 -69.45 0.0060
2015-02-13 2014-12-31 13F MICRON TECHNOLOGY COM 595112103 83,500 38,100 83.92 2,923 87.97 0.0206
2014-11-12 2014-09-30 13F MICRON TECHNOLOGY COM 595112103 45,400 3,600 8.61 1,555 12.93 0.0118
2014-08-13 2014-06-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 41,800 13,000 45.14 1,377 102.20 0.0103
2014-08-13 2014-06-30 13F MICRON TECHNOLOGY COM 595112103 41,800 1,377
2014-05-14 2014-03-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 28,800 -16,945 681 0.0053
2014-05-15 2014-03-31 13F/A-2 MICRON TECHNOLOGY COM 595112103 28,800 -16,945 -37.04 681 -30.93 0.0053
2014-05-13 2014-03-31 13F MICRON TECHNOLOGY COM 595112103 28,800 681
2014-02-13 2013-12-31 13F MICRON TECHNOLOGY COM 595112103 45,745 13,245 40.75 986 -84.52 0.0084
2013-11-14 2013-09-30 13F MICRON TECHNOLOGY NOTE 1.875% 6/0 595112AH6 6,371 1,267.17 0.0507
2013-11-14 2013-09-30 13F MICRON TECHNOLOGY COM 595112103 32,500 0 568 0.0045
2013-08-16 2013-06-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 32,500 32,500 466 0.0035
2013-08-13 2013-06-30 13F MICRON TECHNOLOGY COM 595112103 32,500 466
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F MICRON TECHNOLOGY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-10 2025-12-31 13F MICRON TECHNOLOGY COM Put 330,000 94 n/a n/a n/a
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.