Micron Technology, Inc.
PE ˙ BVL ˙ LU1650489385
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityPE:MU / Micron Technology, Inc.
InstitutionLMR Partners LLP
Latest Disclosed Ownership483,001 shares
Latest Disclosed Value $ 163,177,059
LMR Partners LLP ownership in MU / Micron Technology, Inc.

On May 15, 2026 - LMR Partners LLP filed a 13F-HR form disclosing ownership of 483,001 shares of Micron Technology, Inc. (PE:MU) valued at $163,177,059 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 326,947 shares of Micron Technology, Inc.. This represents a change in shares of 47.73% during the quarter.

LMR Partners LLP 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 152,400 of underlying shares valued at $51,486,816 USD and put options representing 354,800 of underlying shares valued at $119,865,632 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.

PE: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)
2026-05-15 2026-03-31 13F MICRON TECHNOLOGY COM 595112103 483,001 156,054 47.73 163,177 74.87 0.2883
2026-02-17 2025-12-31 13F MICRON TECHNOLOGY COM 595112103 326,947 116,947 55.69 93,314 165.57 0.1756
2025-11-14 2025-09-30 13F MICRON TECHNOLOGY COM 595112103 210,000 204,706 3,866.75 35,137 5,289.11 0.1549
2025-08-14 2025-06-30 13F MICRON TECHNOLOGY COM 595112103 5,294 -104,130 -95.16 652 -93.14 0.0047
2025-05-15 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 109,424 62,743 134.41 9,508 142.03 0.0889
2025-02-14 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 46,681 -69,750 -59.91 3,929 -67.47 0.0330
2024-11-07 2024-09-30 13F MICRON TECHNOLOGY COM 595112103 116,431 116,431 12,075 0.0962
2024-05-15 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 0 -407,998 -100.00 0 -100.00
2024-02-14 2023-12-31 13F MICRON TECHNOLOGY COM 595112103 407,998 254,643 166.05 34,819 233.76 0.3976
2023-11-14 2023-09-30 13F MICRON TECHNOLOGY COM 595112103 153,355 153,355 10,433 0.1173
2023-05-15 2023-03-31 13F MICRON TECHNOLOGY COM 595112103 0 -175,053 -100.00 0 -100.00
2023-02-14 2022-12-31 13F MICRON TECHNOLOGY COM 595112103 175,053 49,042 38.92 8,749 38.59 0.1527
2022-11-14 2022-09-30 13F MICRON TECHNOLOGY COM 595112103 126,011 36,790 41.23 6,313 28.00 0.1161
2022-08-15 2022-06-30 13F MICRON TECHNOLOGY COM 595112103 89,221 59,867 203.95 4,932 115.75 0.0828
2022-05-16 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 29,354 -120,871 -80.46 2,286 -83.66 0.0265
2022-02-14 2021-12-31 13F MICRON TECHNOLOGY COM 595112103 150,225 150,225 13,993 0.1428
2021-11-15 2021-09-30 13F MICRON TECHNOLOGY COM 595112103 0 -82,649 -100.00 0 -100.00
2021-08-16 2021-06-30 13F MICRON TECHNOLOGY COM 595112103 82,649 54,941 198.29 7,024 187.40 0.1062
2021-05-17 2021-03-31 13F MICRON TECHNOLOGY COM 595112103 27,708 -215,310 -88.60 2,444 -86.62 0.0609
2021-02-16 2020-12-31 13F MICRON TECHNOLOGY COM 595112103 243,018 243,018 777.07 18,270 647.55 0.2839
2020-08-14 2020-03-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 0 -12,572 -100.00 0 -100.00
2020-02-14 2019-12-31 13F MICRON TECHNOLOGY COM 595112103 12,572 12,572 676 0.0011
2019-11-14 2019-09-30 13F MICRON TECHNOLOGY COM 595112103 0 -31,775 -100.00 0 -100.00
2019-08-14 2019-06-30 13F MICRON TECHNOLOGY COM 595112103 31,775 -1,200 -3.64 1,226 -10.05 0.0447
2019-05-15 2019-03-31 13F MICRON TECHNOLOGY COM 595112103 32,975 -26,177 -44.25 1,363 -27.38 0.0695
2019-02-14 2018-12-31 13F MICRON TECHNOLOGY COM 595112103 59,152 59,152 79.38 1,877 37.71 0.0920
2018-11-14 2018-09-30 13F MICRON TECHNOLOGY COM 595112103 0 -14,854 -100.00 0 -100.00
2018-08-03 2018-06-30 13F MICRON TECHNOLOGY COM 595112103 14,854 -33,929 -69.55 779 -61.17 0.0404
2018-05-04 2018-03-31 13F MICRON TECHNOLOGY COM 595112103 48,783 0 0.00 2,006 0.00 0.2060
2018-01-30 2017-12-31 13F MICRON TECHNOLOGY COM 595112103 48,783 21,130 76.41 2,006 84.38 0.2060
2017-11-09 2017-09-30 13F MICRON TECHNOLOGY COM 595112103 27,653 1,776 6.86 1,088 40.75 0.1178
2017-08-03 2017-06-30 13F MICRON TECHNOLOGY COM 595112103 25,877 12,106 87.91 773 94.22 0.0485
2017-05-11 2017-03-31 13F MICRON TECHNOLOGY COM 595112103 13,771 13,771 398 0.0382
2015-08-10 2015-06-30 13F MICRON TECHNOLOGY COM 595112103 0 -62,803 -100.00 0 -100.00
2015-04-20 2015-03-31 13F MICRON TECHNOLOGY COM 595112103 62,803 -66,495 -51.43 1,704 -62.36 0.2356
2015-01-20 2014-12-31 13F MICRON TECHNOLOGY COM 595112103 129,298 129,298 105.88 4,527 165.67 0.5916
2014-10-20 2014-09-30 13F MICRON TECHNOLOGY COM 595112103 0 -241,069 -100.00 0 -100.00
2014-07-10 2014-06-30 13F MICRON TECHNOLOGY COM 595112103 241,069 241,069 7,943 0.6606
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
(%)
2026-05-15 2026-03-31 13F MICRON TECHNOLOGY COM Call 152,400 401.32 51,487 493.43 n/a n/a n/a
2026-02-17 2025-12-31 13F MICRON TECHNOLOGY COM Call 30,400 -82.86 8,676 -70.77 n/a n/a n/a
2025-11-14 2025-09-30 13F MICRON TECHNOLOGY COM Call 177,400 137.48 29,683 222.42 n/a n/a n/a
2025-08-14 2025-06-30 13F MICRON TECHNOLOGY COM Call 74,700 31.98 9,207 87.23 n/a n/a n/a
2025-05-15 2025-03-31 13F MICRON TECHNOLOGY COM Call 56,600 4,918 n/a n/a n/a
2024-08-14 2024-06-30 13F MICRON TECHNOLOGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-15 2024-03-31 13F MICRON TECHNOLOGY COM Call 73,500 0.00 8,665 38.14 n/a n/a n/a
2024-02-14 2023-12-31 13F MICRON TECHNOLOGY COM Call 73,500 0.00 6,272 25.44 n/a n/a n/a
2023-11-14 2023-09-30 13F MICRON TECHNOLOGY COM Call 73,500 5,000 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
(%)
2026-05-15 2026-03-31 13F MICRON TECHNOLOGY COM Put 354,800 50,585.71 119,866 60,133.67 n/a n/a n/a
2026-02-17 2025-12-31 13F MICRON TECHNOLOGY COM Put 700 -98.89 200 -98.11 n/a n/a n/a
2025-11-14 2025-09-30 13F MICRON TECHNOLOGY COM Put 62,800 214.00 10,508 326.25 n/a n/a n/a
2025-08-14 2025-06-30 13F MICRON TECHNOLOGY COM Put 20,000 -87.45 2,465 -82.20 n/a n/a n/a
2025-05-15 2025-03-31 13F MICRON TECHNOLOGY COM Put 159,400 59.40 13,850 64.57 n/a n/a n/a
2025-02-14 2024-12-31 13F MICRON TECHNOLOGY COM Put 100,000 8,416 n/a n/a n/a
2024-08-14 2024-06-30 13F MICRON TECHNOLOGY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-15 2024-03-31 13F MICRON TECHNOLOGY COM Put 117,900 0.00 13,899 38.15 n/a n/a n/a
2024-02-14 2023-12-31 13F MICRON TECHNOLOGY COM Put 117,900 0.00 10,062 25.45 n/a n/a n/a
2023-11-14 2023-09-30 13F MICRON TECHNOLOGY COM Put 117,900 8,021 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.