Micron Technology, Inc.
PE ˙ BVL ˙ LU1650489385
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityPE:MU / Micron Technology, Inc.
InstitutionPrimecap Management Co/ca/
Latest Disclosed Ownership55,877,289 shares
Ownership 5.03%
Primecap Management Co/ca/ ownership in MU / Micron Technology, Inc.

2020-02-12 - Primecap Management Co/ca/ has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 55,877,289 shares of Micron Technology, Inc. (PE:MU). This represents 5.03 percent ownership of the company. In their previous filing dated 2019-02-08 , Primecap Management Co/ca/ had reported owning 57,930,885 shares, indicating a decrease of -3.54 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2020-02-12 2020-02-12 13G/A 57,930,885 55,877,289 -3.54 5.03 -2.71
2019-02-08 2019-02-08 13G/A 58,390,611 57,930,885 -0.79 5.17 2.17
2018-02-27 2018-02-27 13G/A 62,122,100 58,390,611 -6.01 5.06 -10.44
2017-02-09 2017-02-09 13G/A 55,658,616 62,122,100 11.61 5.65 5.41
2016-02-04 2016-02-04 13G 55,658,616 5.36

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-11 2026-03-31 13F MICRON TECHNOLOGY COM 595112103 21,874,204 -2,920,732 -11.78 7,389,981 4.43 5.8184
2026-02-11 2025-12-31 13F MICRON TECHNOLOGY COM 595112103 24,794,936 -4,860,499 -16.39 7,076,723 42.62 5.3567
2025-11-12 2025-09-30 13F MICRON TECHNOLOGY COM 595112103 29,655,435 -1,810,441 -5.75 4,961,948 27.95 3.8002
2025-08-11 2025-06-30 13F MICRON TECHNOLOGY COM 595112103 31,465,876 -5,814,892 -15.60 3,878,169 19.72 3.0733
2025-05-09 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 37,280,768 -315,693 -0.84 3,239,326 2.38 2.6780
2025-02-10 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 37,596,461 -35,399 -0.09 3,164,118 -18.93 2.4505
2024-11-08 2024-09-30 13F MICRON TECHNOLOGY COM 595112103 37,631,860 206,499 0.55 3,902,800 -20.72 2.8695
2024-08-09 2024-06-30 13F MICRON TECHNOLOGY COM 595112103 37,425,361 -184,101 -0.49 4,922,558 11.02 3.5638
2024-05-14 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 37,609,462 117,951 0.31 4,433,779 38.58 3.3069
2024-02-09 2023-12-31 13F MICRON TECHNOLOGY COM 595112103 37,491,511 -147,390 -0.39 3,199,526 24.95 2.5330
2023-11-13 2023-09-30 13F MICRON TECHNOLOGY COM 595112103 37,638,901 -375,830 -0.99 2,560,574 6.73 2.1614
2023-08-11 2023-06-30 13F MICRON TECHNOLOGY COM 595112103 38,014,731 -935,206 -2.40 2,399,110 2.08 2.0046
2023-05-15 2023-03-31 13F MICRON TECHNOLOGY COM 595112103 38,949,937 -789,660 -1.99 2,350,239 18.33 2.0493
2023-02-13 2022-12-31 13F MICRON TECHNOLOGY COM 595112103 39,739,597 -694,530 -1.72 1,986,185 -1.95 1.8184
2022-11-14 2022-09-30 13F MICRON TECHNOLOGY COM 595112103 40,434,127 13,911 0.03 2,025,750 -9.34 1.9602
2022-08-11 2022-06-30 13F MICRON TECHNOLOGY COM 595112103 40,420,216 -408,370 -1.00 2,234,430 -29.74 1.9973
2022-05-11 2022-03-31 13F MICRON TECHNOLOGY COM 595112103 40,828,586 -382,090 -0.93 3,180,139 -17.16 2.3987
2022-02-11 2021-12-31 13F MICRON TECHNOLOGY COM 595112103 41,210,676 -2,143,470 -4.94 3,838,774 24.75 2.6571
2021-11-12 2021-09-30 13F MICRON TECHNOLOGY COM 595112103 43,354,146 -298,117 -0.68 3,077,277 -17.04 2.1721
2021-08-10 2021-06-30 13F MICRON TECHNOLOGY COM 595112103 43,652,263 -1,776,326 -3.91 3,709,569 -7.43 2.4923
2021-05-14 2021-03-31 13F MICRON TECHNOLOGY COM 595112103 45,428,589 -3,121,670 -6.43 4,007,256 9.79 2.7943
2021-02-08 2020-12-31 13F MICRON TECHNOLOGY COM 595112103 48,550,259 -1,857,250 -3.68 3,650,008 54.20 2.7130
2020-11-13 2020-09-30 13F MICRON TECHNOLOGY COM 595112103 50,407,509 -1,057,170 -2.05 2,367,137 -10.72 1.9530
2020-08-13 2020-06-30 13F MICRON TECHNOLOGY COM 595112103 51,464,679 -2,002,730 -3.75 2,651,460 17.90 2.2751
2020-05-14 2020-03-31 13F MICRON TECHNOLOGY COM 595112103 53,467,409 -2,409,880 -4.31 2,248,839 -25.17 2.2051
2020-02-14 2019-12-31 13F MICRON TECHNOLOGY COM 595112103 55,877,289 -741,417 -1.31 3,005,081 23.86 2.1795
2019-11-13 2019-09-30 13F MICRON TECHNOLOGY COM 595112103 56,618,706 -1,121,803 -1.94 2,426,112 8.88 1.9404
2019-08-14 2019-06-30 13F MICRON TECHNOLOGY COM 595112103 57,740,509 -55,726 -0.10 2,228,206 -6.72 1.6476
2019-05-14 2019-03-31 13F MICRON TECHNOLOGY COM 595112103 57,796,235 -68,650 -0.12 2,388,718 30.10 1.7580
2019-02-12 2018-12-31 13F MICRON TECHNOLOGY COM 595112103 57,864,885 -240,750 -0.41 1,836,053 -30.14 1.4877
2018-11-13 2018-09-30 13F MICRON TECHNOLOGY COM 595112103 58,105,635 -64,900 -0.11 2,628,118 -13.85 1.7741
2018-08-13 2018-06-30 13F MICRON TECHNOLOGY COM 595112103 58,170,535 42,190 0.07 3,050,463 0.65 2.2617
2018-05-14 2018-03-31 13F MICRON TECHNOLOGY COM 595112103 58,128,345 -262,266 -0.45 3,030,812 26.23 2.2741
2018-02-13 2017-12-31 13F MICRON TECHNOLOGY COM 595112103 58,390,611 -191,189 -0.33 2,401,022 4.21 1.8426
2017-11-13 2017-09-30 13F MICRON TECHNOLOGY COM 595112103 58,581,800 -418,900 -0.71 2,304,022 30.78 1.9070
2017-08-11 2017-06-30 13F MICRON TECHNOLOGY COM 595112103 59,000,700 -3,155,100 -5.08 1,761,761 -1.92 1.5135
2017-05-12 2017-03-31 13F MICRON TECHNOLOGY COM 595112103 62,155,800 33,700 0.05 1,796,303 31.91 1.6304
2017-02-13 2016-12-31 13F MICRON TECHNOLOGY COM 595112103 62,122,100 -11,000 -0.02 1,361,716 23.26 1.3399
2016-11-14 2016-09-30 13F MICRON TECHNOLOGY COM 595112103 62,133,100 3,107,500 5.26 1,104,727 36.02 1.1026
2016-08-12 2016-06-30 13F MICRON TECHNOLOGY COM 595112103 59,025,600 1,882,584 3.29 812,192 35.75 0.8648
2016-05-12 2016-03-31 13F MICRON TECHNOLOGY COM 595112103 57,143,016 5,961,872 11.65 598,287 -17.45 0.6205
2016-02-12 2015-12-31 13F MICRON TECHNOLOGY COM 595112103 51,181,144 7,142,628 16.22 724,725 9.86 0.7409
2015-11-12 2015-09-30 13F MICRON TECHNOLOGY COM 595112103 44,038,516 6,054,767 15.94 659,697 -7.81 0.7323
2015-08-13 2015-06-30 13F MICRON TECHNOLOGY COM 595112103 37,983,749 2,933,014 8.37 715,614 -24.75 0.7039
2015-05-14 2015-03-31 13F MICRON TECHNOLOGY COM 595112103 35,050,735 148,600 0.43 950,926 -22.18 0.9286
2015-02-12 2014-12-31 13F MICRON TECHNOLOGY COM 595112103 34,902,135 81,700 0.23 1,221,924 2.43 1.2382
2014-11-13 2014-09-30 13F MICRON TECHNOLOGY COM 595112103 34,820,435 -42,900 -0.12 1,192,948 3.85 1.2764
2014-08-14 2014-06-30 13F MICRON TECHNOLOGY COM 595112103 34,863,335 -308,500 -0.88 1,148,747 38.04 1.2578
2014-05-14 2014-03-31 13F MICRON TECHNOLOGY COM 595112103 35,171,835 -110,200 -0.31 832,166 8.44 0.9419
2014-02-13 2013-12-31 13F MICRON TECHNOLOGY COM 595112103 35,282,035 -200,300 -0.56 767,384 23.80 0.9223
2013-11-13 2013-09-30 13F MICRON TECHNOLOGY COM 595112103 35,482,335 514,300 1.47 619,876 23.71 0.8155
2013-08-14 2013-06-30 13F MICRON TECHNOLOGY COM 595112103 34,968,035 34,968,035 501,092 0.7166
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.