Micron Technology, Inc.
US ˙ NasdaqGS ˙ US5951121038

SecurityMU / Micron Technology, Inc.
InstitutionNatixis
Latest Disclosed Ownership1,318,495 shares
Latest Disclosed Value $ 445,440,351
Natixis ownership in MU / Micron Technology, Inc.

On May 14, 2026 - Natixis filed a 13F-HR form disclosing ownership of 1,318,495 shares of Micron Technology, Inc. (US:MU) valued at $445,440,351 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 997,753 shares of Micron Technology, Inc.. This represents a change in shares of 32.15% during the quarter. The current value of the position is $1,423,407,647 USD.

Natixis has a history of taking positions in derivatives of the underlying security (MU) in the form of stock options. The firm currently holds call options representing 100,000 of underlying shares valued at $33,784,000 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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.

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)
2026-05-14 2026-03-31 13F MICRON TECHNOLOGY COM 595112103 1,318,495 320,742 32.15 445,440 56.42 1.5927
2026-02-13 2025-12-31 13F MICRON TECHNOLOGY COM 595112103 997,753 459,384 85.33 284,769 216.13 1.0111
2025-11-14 2025-09-30 13F MICRON TECHNOLOGY COM 595112103 538,369 144,751 36.77 90,080 85.68 0.4176
2025-08-13 2025-06-30 13F MICRON TECHNOLOGY COM 595112103 393,618 -94,658 -19.39 48,513 16.27 0.2151
2025-07-18 2025-03-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 488,276 -997,645 -67.14 41,723 -66.64 0.2272
2025-05-14 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 488,276 -997,645 41,723 0.2289
2025-02-13 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 1,485,921 -544,173 -26.81 125,055 -40.60 0.7640
2024-11-13 2024-09-30 13F MICRON TECHNOLOGY COM 595112103 2,030,094 1,091,623 116.32 210,541 70.57 1.1867
2024-08-13 2024-06-30 13F MICRON TECHNOLOGY COM 595112103 938,471 -244,660 -20.68 123,437 -11.50 0.7066
2024-05-13 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 1,183,131 -88,728 -6.98 139,479 28.50 0.7251
2024-02-13 2023-12-31 13F MICRON TECHNOLOGY COM 595112103 1,271,859 312,952 32.64 108,540 66.39 0.7884
2023-11-14 2023-09-30 13F MICRON TECHNOLOGY COM 595112103 958,907 332,310 53.03 65,234 64.97 0.4993
2023-08-11 2023-06-30 13F MICRON TECHNOLOGY COM 595112103 626,597 467,812 294.62 39,545 312.73 0.3212
2023-05-12 2023-03-31 13F MICRON TECHNOLOGY COM 595112103 158,785 -834,296 -84.01 9,581 -80.70 0.0864
2023-02-24 2022-12-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 993,081 564,093 131.49 49,634 128.84 0.2785
2023-02-13 2022-12-31 13F Micron Technology COM 595112103 1,278,696 849,708 63,820 0.0002
2022-11-14 2022-09-30 13F Micron Technology COM 595112103 428,988 158,273 58.46 21,689 44.31 0.1015
2022-08-12 2022-06-30 13F Micron Technology COM 595112103 270,715 124,176 84.74 15,029 31.66 0.0545
2022-05-13 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 146,539 -483,168 -76.73 11,415 -80.54 0.0398
2022-02-14 2021-12-31 13F MICRON TECHNOLOGY COM 595112103 629,707 160,808 34.29 58,657 76.24 0.2002
2021-11-12 2021-09-30 13F MICRON TECHNOLOGY COM 595112103 468,899 -104,048 -18.16 33,283 -31.64 0.1150
2021-08-13 2021-06-30 13F MICRON TECHNOLOGY COM 595112103 572,947 303,996 113.03 48,690 105.24 0.2127
2021-05-14 2021-03-31 13F MICRON TECHNOLOGY CO 595112103 268,951 -128,429 -32.32 23,724 -20.59 0.0776
2021-02-12 2020-12-31 13F MICRON TECHNOLOGY COM 595112103 397,380 376,532 1,806.08 29,875 2,951.58 0.1085
2020-11-12 2020-09-30 13F MICRON TECHNOLOGY COM 595112103 20,848 -173,469 -89.27 979 -90.22 0.0072
2020-08-13 2020-06-30 13F MICRON TECHNOLOGY COM 595112103 194,317 -325,632 -62.63 10,011 -54.22 0.0777
2020-05-14 2020-03-31 13F MICRON TECHNOLOGY COM 595112103 519,949 -74,388 -12.52 21,869 -30.85 0.1718
2020-02-14 2019-12-31 13F MICRON TECHNOLOGY COM 595112103 594,337 -32,089 -5.12 31,625 17.82 0.1959
2019-11-13 2019-09-30 13F MICRON TECHNOLOGY COM 595112103 626,426 495,879 379.85 26,842 432.79 0.1728
2019-08-13 2019-06-30 13F MICRON TECHNOLOGY COM 595112103 130,547 58,189 80.42 5,038 68.44 0.0398
2019-05-15 2019-03-31 13F MICRON TECHNOLOGY COM 595112103 72,358 -991,198 -93.20 2,991 -91.14 0.0188
2019-02-14 2018-12-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 1,063,556 860,046 422.61 33,747 266.66 0.2780
2019-02-14 2018-12-31 13F MICRON TECHNOLOGY COM 595112103 1,063,556 860,046 33,747
2018-11-14 2018-09-30 13F MICRON TECHNOLOGY COM 595112103 203,510 -1,825,235 -89.97 9,204 -91.35 0.0532
2018-08-14 2018-06-30 13F MICRON TECHNOLOGY COM 595112103 2,028,745 1,573,549 345.69 106,388 348.25 0.5632
2018-05-15 2018-03-31 13F MICRON TECHNOLOGY COM 595112103 455,196 119,117 35.44 23,734 71.74 0.1457
2018-02-14 2017-12-31 13F MICRON TECHNOLOGY COM 595112103 336,079 -2,333,388 -87.41 13,820 -86.84 0.1063
2017-11-14 2017-09-30 13F MICRON TECHNOLOGY COM 595112103 2,669,467 999,072 59.81 104,990 110.49 0.9679
2017-08-14 2017-06-30 13F MICRON TECHNOLOGY COM 595112103 1,670,395 -386,858 -18.80 49,878 -16.11 0.5669
2017-05-15 2017-03-31 13F MICRON TECHNOLOGY COM 595112103 2,057,253 1,979,048 2,530.59 59,455 3,368.79 0.7410
2017-02-14 2016-12-31 13F MICRON TECHNOLOGY COM 595112103 78,205 -6,002,324 -98.71 1,714 -98.41 0.0177
2016-11-14 2016-09-30 13F MICRON TECHNOLOGY COM 595112103 6,080,529 -75,643 -1.23 108,112 27.63 1.2494
2016-08-15 2016-06-30 13F MICRON TECHNOLOGY COM 595112103 6,156,172 137,061 2.28 84,709 34.42 1.5754
2016-05-16 2016-03-31 13F MICRON TECHNOLOGY COM 595112103 6,019,111 2,862,897 90.71 63,020 41.01 1.0576
2016-02-16 2015-12-31 13F MICRON TECHNOLOGY INC COM COM 595112103 3,156,214 3,143,854 25,435.71 44,692 24,057.84 0.7444
2015-11-16 2015-09-30 13F MICRON TECHNOLOGY COM 595112103 12,360 -463,511 -97.40 185 -97.94 0.0039
2015-08-14 2015-06-30 13F MICRON TECHNOLOGY COM 595112103 475,871 65,885 16.07 8,965 -36.17 0.1213
2014-11-14 2014-09-30 13F MICRON TECHNOLOGY COM 595112103 409,986 222,075 118.18 14,046 126.84 0.2165
2014-08-14 2014-06-30 13F MICRON TECHNOLOGY COM 595112103 187,911 -99,657 -34.66 6,192 -8.99 0.0744
2014-05-14 2014-03-31 13F MICRON TECHNOLOGY COM 595112103 287,568 -658,000 -69.59 6,804 -66.93 0.0885
2014-02-14 2013-12-31 13F MICRON TECHNOLOGY COM 595112103 945,568 35,971 3.95 20,575 29.48 0.1765
2013-11-14 2013-09-30 13F MICRON TECHNOLOGY COM 595112103 909,597 -607,067 -40.03 15,890 -26.89 0.1697
2013-08-14 2013-06-30 13F MICRON TECHNOLOGY COM 595112103 1,516,664 1,516,664 21,734 0.3106
Disclosed Call 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
(%)
2026-05-14 2026-03-31 13F MICRON TECHNOLOGY COM Call 100,000 33,784 n/a n/a n/a
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
(%)
2023-05-12 2023-03-31 13F Micron Technology PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-13 2022-12-31 13F Micron Technology PUT Put 300,000 0.00 14,835 -3.44 n/a n/a n/a
2022-11-14 2022-09-30 13F Micron Technology PUT Put 300,000 0.00 15,363 -7.99 n/a n/a n/a
2022-08-12 2022-06-30 13F Micron Technology PUT Put 300,000 16,698 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.