ARNZEN APRIL S 4

What Happened
April Arnzen, EVP and Chief People Officer of Micron Technology (MU), sold a total of 40,000 Micron shares in open-market transactions on April 1, 2026 for aggregate proceeds of $13,895,762. The sales were reported in four tranches:

• 8,630 shares at a weighted average price of $345.13 — $2,978,472 (footnote: prices in this tranche ranged ~$344.722–$345.7108)
• 5,766 shares at a weighted average price of $346.22 — $1,996,305 (footnote: prices in this tranche ranged ~$345.7221–$346.71)
• 604 shares at a weighted average price of $346.83 — $209,485 (footnote: prices in this tranche ranged ~$346.72–$346.90)
• 25,000 shares at $348.46 — $8,711,500

These were sales (not purchases). According to the filing, the transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by Arnzen on December 19, 2025, which generally indicates pre-arranged, scheduled trades rather than ad hoc market-timing.

Key Details

• Transaction date: April 1, 2026; Form 4 filed April 3, 2026 (timely filing).
• Total shares sold: 40,000; total proceeds: $13,895,762.
• Reported prices are weighted averages; footnotes provide price ranges and offer to disclose per-price breakdown on request.
• Footnote: F1 — sales pursuant to a 10b5-1 plan adopted 12/19/2025. F3 notes 229.064 shares were acquired Jan 30, 2026 under Micron’s ESPP (exempt from reporting).
• Shares owned after the transaction are not specified in the data provided in this summary.

Context

• 10b5-1 plans are pre-established trading arrangements that allow insiders to sell at predetermined times; such sales are often considered routine and do not necessarily reflect the insider’s current view of the company.
• For retail investors, purchases typically signal more actionable insider conviction than scheduled sales; this filing documents a sizeable, pre-arranged sale totaling roughly $13.9M.