美光科技公司
MX ˙ BMV ˙ LU1650489385
SecurityMX:MU / Micron Technology, Inc.
InstitutionSienna Gestion
Latest Disclosed Ownership37,311 shares
Latest Disclosed Value $ 12,095,168
Sienna Gestion reports 60.30% decrease in ownership of MU / Micron Technology, Inc.

On May 15, 2026 - Sienna Gestion filed a 13F-HR form disclosing ownership of 37,311 shares of Micron Technology, Inc. (MX:MU) valued at $12,095,168 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 93,986 shares of Micron Technology, Inc.. This represents a change in shares of -60.30% during the quarter.

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)
2026-05-15 2026-03-31 13F MICRON TECHNOLOGY COM 595112103 37,311 -56,675 -60.30 12,095 -55.80 0.7891
2026-02-13 2025-12-31 13F MICRON TECHNOLOGY COM 595112103 93,986 0 0.00 27,366 90.88 1.6253
2025-11-13 2025-09-30 13F MICRON TECHNOLOGY COM 595112103 93,986 43,822 87.36 14,338 154.02 1.0019
2025-08-06 2025-06-30 13F MICRON TECHNOLOGY COM 595112103 50,164 0 0.00 5,645 33.24 0.3884
2025-05-13 2025-03-31 13F MICRON TECHNOLOGY COM 595112103 50,164 -3,274 -6.13 4,237 -5.78 0.3427
2025-02-10 2024-12-31 13F MICRON TECHNOLOGY COM 595112103 53,438 53,438 4,497 0.3035
2024-08-12 2024-06-30 13F MICRON TECHNOLOGY COM 595112103 0 -3,924 -100.00 0 -100.00
2024-08-12 2024-03-31 13F/A-1 MICRON TECHNOLOGY COM 595112103 3,924 3,924 463 0.0398
2024-05-10 2024-03-31 13F MICRON TECHNOLOGY COM 595112103 3,924 3,924 463 0.0050
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.