Were April S. Arnzen’s Micron (MU) share sales under a 10b5-1 plan?

Yes. A footnote explains the sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on December 19, 2025 . Such plans allow insiders to schedule trades in advance under defined conditions.

Micron Technology (MU) HR chief sells 40,000 shares in preset plan

Q: How many Micron (MU) shares does April S. Arnzen hold after these sales?

After the reported sales, April S. Arnzen directly holds 125,737 shares of Micron common stock. Earlier rows in the filing show higher post-transaction balances, with the final listed transaction leaving this remaining direct ownership stake.

Q: How many Micron (MU) shares did April S. Arnzen sell in total?

Across four open-market transactions on April 1, 2026 , Arnzen sold a total of 40,000 shares of Micron common stock. The Form 4 transaction summary aggregates these sales into this single total share count.

Q: Did April S. Arnzen recently acquire Micron (MU) shares through an employee plan?

Yes. A footnote notes that her holdings include 229.064 shares acquired on January 30, 2026 under the Micron Technology, Inc. Employee Stock Purchase Plan , an acquisition exempt from separate reporting requirements.

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

Micron Technology EVP and Chief People Officer April S. Arnzen reported open-market sales of 40,000 shares of common stock on April 1, 2026, at prices around $345–$348 per share. The transactions were executed under a pre-arranged Rule 10b5-1 trading plan, and Arnzen now directly holds 125,737 shares of Micron stock.

Insider Trade Summary 10b5-1

Net Seller: 40,000 shares ($13,895,762)

Net Sell 4 txns

Insider ARNZEN APRIL S

Role EVP and Chief People Officer

Sold 40,000 shs ($13.90M)

Type	Security	Shares	Price	Value
Sale	Common Stock	8,630	$345.13	$2.98M
Sale	Common Stock	5,766	$346.22	$2.00M
Sale	Common Stock	604	$346.83	$209K
Sale	Common Stock	25,000	$348.46	$8.71M

Holdings After Transaction: Common Stock — 157,107 shares (Direct)

Footnotes (1)

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $344.722 to $345.7108 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Includes 229.064 shares acquired on January 30, 2026 under the Micron Technology, Inc. Employee Stock Purchase Plan, which acquisition is exempt from reporting under Rules 16a3(f)(1)(i)(B) and 16b-3(c). The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $345.7221 to $346.71 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $346.72 to $346.90 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Key Figures

Total shares sold: 40,000 shares Sale price lot 1: $345.13 per share Sale price lot 2: $346.22 per share +4 more

7 metrics

Total shares sold 40,000 shares Aggregate open-market sales on April 1, 2026

Sale price lot 1 $345.13 per share Weighted average price for 8,630-share sale

Sale price lot 2 $346.22 per share Weighted average price for 5,766-share sale

Sale price lot 3 $346.83 per share Weighted average price for 604-share sale

Sale price lot 4 $348.46 per share Price for 25,000-share sale

Shares held after final sale 125,737 shares Direct Micron common stock ownership post-transaction

ESPP acquisition 229.064 shares Shares acquired on January 30, 2026 under Employee Stock Purchase Plan

Key Terms

Rule 10b5-1 trading plan, weighted average price, open-market sale, Employee Stock Purchase Plan

4 terms

Rule 10b5-1 trading plan regulatory

"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The reported price in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open-market sale financial

"transaction_action: "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Employee Stock Purchase Plan financial

"acquired on January 30, 2026 under the Micron Technology, Inc. Employee Stock Purchase Plan"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

Form 4 Insider Transactions: What Each Field Means →

04/03/2026 - 07:01 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

ARNZEN APRIL S

(Last)

(First)

(Middle)

8000 S. FEDERAL WAY

(Street)

BOISE

IDAHO

83716

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MICRON TECHNOLOGY INC [ MU ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EVP and Chief People Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/01/2026		S⁽¹⁾		8,630	D	$345.13⁽²⁾	157,107⁽³⁾	D
Common Stock	04/01/2026		S⁽¹⁾		5,766	D	$346.22⁽⁴⁾	151,341	D
Common Stock	04/01/2026		S⁽¹⁾		604	D	$346.83⁽⁵⁾	150,737	D
Common Stock	04/01/2026		S⁽¹⁾		25,000	D	$348.46	125,737	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

2. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $344.722 to $345.7108 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

3. Includes 229.064 shares acquired on January 30, 2026 under the Micron Technology, Inc. Employee Stock Purchase Plan, which acquisition is exempt from reporting under Rules 16a3(f)(1)(i)(B) and 16b-3(c).

4. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $345.7221 to $346.71 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

5. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $346.72 to $346.90 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Remarks:

	Mai Lan Bui, Attorney-in-fact	04/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Micron (MU) report for April S. Arnzen?

Micron reported that EVP and Chief People Officer April S. Arnzen sold 40,000 shares of common stock on April 1, 2026. These were open-market sales executed in multiple trades at prices in the mid-$340s per share.

At what prices did April S. Arnzen sell Micron (MU) shares?

Arnzen’s reported weighted average sale prices ranged from about $345.13 to $348.46 per share. Footnotes note that each price reflects multiple trades executed within narrow ranges around these reported averages.

How many Micron (MU) shares does April S. Arnzen hold after these sales?

After the reported sales, April S. Arnzen directly holds 125,737 shares of Micron common stock. Earlier rows in the filing show higher post-transaction balances, with the final listed transaction leaving this remaining direct ownership stake.

How many Micron (MU) shares did April S. Arnzen sell in total?

Across four open-market transactions on April 1, 2026, Arnzen sold a total of 40,000 shares of Micron common stock. The Form 4 transaction summary aggregates these sales into this single total share count.

Did April S. Arnzen recently acquire Micron (MU) shares through an employee plan?

Yes. A footnote notes that her holdings include 229.064 shares acquired on January 30, 2026 under the Micron Technology, Inc. Employee Stock Purchase Plan, an acquisition exempt from separate reporting requirements.