美光科技公司
MX ˙ BMV ˙ LU1650489385
SecurityMX:MU / Micron Technology, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership219,439 shares
Latest Disclosed Value $ 74,135,146
Cwm, Llc ownership in MU / Micron Technology, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 219,439 shares of Micron Technology, Inc. (MX:MU) valued at $74,135,146 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 197,019 shares of Micron Technology, Inc.. This represents a change in shares of 11.38% during the quarter.

Cwm, Llc 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 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.

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)
2026-05-14 2026-03-31 13F MICRON TECHNOLOGY COM 595112103 219,439 22,420 11.38 74,135 132,283.93 0.1948
2026-01-26 2025-12-31 13F MICRON TECHNOLOGY COM 595112103 197,019 13,204 7.18 56 86.67 0.1524
2025-10-15 2025-09-30 13F MICRON TECHNOLOGY COM 595112103 183,815 72,582 65.25 31 130.77 0.0925
2025-07-25 2025-06-30 13F MICRON TECHNOLOGY COM 595112103 111,233 77,881 233.51 14 550.00 0.0483
2025-05-01 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 33,352 -2,610 -7.26 3 -33.33 0.0116
2025-02-04 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 35,962 498 1.40 3 0.00 0.0126
2024-10-08 2024-09-30 13F MICRON TECHNOLOGY COM 595112103 35,464 -9,866 -21.76 4 -40.00 0.0158
2024-07-10 2024-06-30 13F MICRON TECHNOLOGY COM 595112103 45,330 20,242 80.68 6 150.00 0.0281
2024-04-05 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 25,088 3,566 16.57 3 100.00 0.0144
2024-02-01 2023-12-31 13F MICRON TECHNOLOGY COM 595112103 21,522 1,375 6.82 2 0.00 0.0099
2023-10-11 2023-09-30 13F MICRON TECHNOLOGY COM 595112103 20,147 2,705 15.51 1 0.00 0.0084
2023-08-03 2023-06-30 13F MICRON TECHNOLOGY COM 595112103 17,442 -78,582 -81.84 1 -80.00 0.0068
2023-05-01 2023-03-31 13F MICRON TECHNOLOGY COM 595112103 96,024 4,321 4.71 6 25.00 0.0391
2023-02-01 2022-12-31 13F MICRON TECHNOLOGY COM 595112103 91,703 10,361 12.74 5 -99.90 0.0338
2022-10-27 2022-09-30 13F MICRON TECHNOLOGY COM 595112103 81,342 2,344 2.97 4,075 -6.69 0.0324
2022-07-28 2022-06-30 13F MICRON TECHNOLOGY COM 595112103 78,998 67,239 571.81 4,367 376.75 0.0338
2022-04-21 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 11,759 4,334 58.37 916 32.37 0.0065
2022-01-31 2021-12-31 13F MICRON TECHNOLOGY COM 595112103 7,425 2,454 49.37 692 63.98 0.0049
2021-09-15 2021-06-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 4,971 0 0.00 422 0.00 0.0034
2021-07-29 2021-06-30 13F MICRON TECHNOLOGY COM 595112103 4,971 0 422 0.0034
2021-09-15 2021-03-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 4,971 0 0.00 422 0.00 0.0034
2021-04-27 2021-03-31 13F MICRON TECHNOLOGY COM 595112103 3,910 -1,061 345 0.0030
2021-09-15 2020-12-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 4,971 0 0.00 422 0.00 0.0034
2021-01-27 2020-12-31 13F MICRON TECHNOLOGY COM 595112103 1,828 -3,143 137 0.0013
2021-09-15 2020-09-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 4,971 0 0.00 422 0.00 0.0034
2020-10-19 2020-09-30 13F MICRON TECHNOLOGY COM 595112103 1,328 -3,643 62 0.0007
2021-09-15 2020-06-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 4,971 0 0.00 422 0.00 0.0034
2020-07-22 2020-06-30 13F MICRON TECHNOLOGY COM 595112103 1,471 -3,500 76 0.0009
2021-09-15 2020-03-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 4,971 0 0.00 422 0.00 0.0034
2020-04-28 2020-03-31 13F MICRON TECHNOLOGY COM 595112103 2,041 -2,930 86 0.0013
2021-09-14 2019-12-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 4,971 0 0.00 422 0.00 0.0034
2020-01-27 2019-12-31 13F MICRON TECHNOLOGY COM 595112103 2,259 -2,712 121 0.0015
2021-09-14 2019-09-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 4,971 0 0.00 422 0.00 0.0034
2019-10-22 2019-09-30 13F MICRON TECHNOLOGY COM 595112103 1,835 -3,136 79 0.0011
2021-09-14 2019-06-30 13F/A-1 MICRON TECHNOLOGY COM 595112103 4,971 0 0.00 422 0.00 0.0034
2019-07-31 2019-06-30 13F MICRON TECHNOLOGY COM 595112103 2,329 -2,642 90 0.0015
2021-09-02 2019-03-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 4,971 3,633 271.52 422 904.76 0.0034
2019-04-22 2019-03-31 13F MICRON TECHNOLOGY COM 595112103 1,636 -693 68 0.0014
2019-01-25 2018-12-31 13F MICRON TECHNOLOGY COM 595112103 1,338 -45 -3.25 42 -33.33 0.0010
2018-10-29 2018-09-30 13F MICRON TECHNOLOGY COM 595112103 1,383 605 77.76 63 53.66 0.0016
2018-07-31 2018-06-30 13F MICRON TECHNOLOGY COM 595112103 778 514 194.70 41 192.86 0.0013
2018-04-26 2018-03-31 13F MICRON TECHNOLOGY COM 595112103 264 96 57.14 14 100.00 0.0006
2018-01-16 2017-12-31 13F MICRON TECHNOLOGY COM 595112103 168 -31 -15.58 7 -12.50 0.0003
2017-10-16 2017-09-30 13F MICRON TECHNOLOGY COM 595112103 199 -1,013 -83.58 8 -77.78 0.0004
2017-07-17 2017-06-30 13F MICRON TECHNOLOGY COM 595112103 1,212 901 289.71 36 300.00 0.0018
2017-04-17 2017-03-31 13F MICRON TECHNOLOGY COM 595112103 311 311 9 0.0005
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
(%)
2024-02-01 2023-12-31 13F MICRON TECHNOLOGY COM Call 0 -100.00 0 n/a n/a n/a
2023-10-11 2023-09-30 13F MICRON TECHNOLOGY COM Call 200 0.00 0 n/a n/a n/a
2023-08-03 2023-06-30 13F MICRON TECHNOLOGY COM Call 200 0.00 0 n/a n/a n/a
2023-05-01 2023-03-31 13F MICRON TECHNOLOGY COM Call 200 0.00 0 n/a n/a n/a
2023-02-01 2022-12-31 13F MICRON TECHNOLOGY COM Call 200 0.00 0 n/a n/a n/a
2022-10-27 2022-09-30 13F MICRON TECHNOLOGY COM Call 200 0.00 0 n/a n/a n/a
2022-07-28 2022-06-30 13F MICRON TECHNOLOGY COM Call 200 0.00 0 -100.00 n/a n/a n/a
2022-04-21 2022-03-31 13F MICRON TECHNOLOGY COM Call 200 2 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.