KLA CORP (KLAC) CEO sells 4,512 shares under Rule 10b5-1 plan

Rhea-AI Filing Summary

KLA CORP President and CEO Richard P. Wallace sold 4,512 shares of common stock in an open-market transaction at $1,794 per share on May 12, 2026. The sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on November 19, 2025, indicating it was scheduled in advance rather than timed opportunistically.

After this transaction, Wallace directly holds 75,895.008 shares of KLA common stock. This figure includes 57,511.168 shares issuable upon vesting of restricted stock units, so a large portion of his exposure remains tied to equity-based compensation.

Insights

Equity analyst

CEO executes pre-planned sale of 4,512 KLA shares, retains sizable equity stake.

Richard P. Wallace, President and CEO of KLA CORP, completed an open-market sale of 4,512 common shares at $1,794 per share on May 12, 2026. The filing states this trade was made under a Rule 10b5-1 trading plan adopted on November 19, 2025, signaling it was scheduled in advance.

Following the sale, Wallace directly holds 75,895.008 shares, which the disclosure notes includes 57,511.168 shares tied to restricted stock units. This shows that, despite the sale, most of his economic interest in KLA still comes from equity holdings and stock-based awards. The pre-planned nature and remaining position make this look like routine portfolio management.

Insider Trade Summary 10b5-1

Net Seller: 4,512 shares ($8,094,528)

Net Sell 1 txn

Insider WALLACE RICHARD P

Role President and CEO

Sold 4,512 shs ($8.09M)

Type	Security	Shares	Price	Value
Sale	Common Stock	4,512	$1,794.00	$8.09M

Holdings After Transaction: Common Stock — 75,895.008 shares (Direct, null)

Footnotes (1)

1. This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on November 19, 2025. The number of shares of KLA common stock includes 57,511.168 shares issuable upon vesting of restricted stocck units ("RSUs").

Key Figures

Shares sold: 4,512 shares Sale price: $1,794 per share Shares held after: 75,895.008 shares +2 more

5 metrics

Shares sold 4,512 shares Open-market sale on May 12, 2026

Sale price $1,794 per share Price for common stock sold on May 12, 2026

Shares held after 75,895.008 shares Direct holdings following the reported sale

RSU-related shares 57,511.168 shares Included in holdings, issuable upon RSU vesting

Trading plan adoption date November 19, 2025 Rule 10b5-1 plan governing the sale

Key Terms

Rule 10b5-1 trading plan, restricted stock units ("RSUs"), open-market sale, Common Stock

4 terms

Rule 10b5-1 trading plan regulatory

"This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted..."

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.

restricted stock units ("RSUs") financial

"includes 57,511.168 shares issuable upon vesting of restricted stocck units ("RSUs")."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

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.

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 Insider Transactions: What Each Field Means →

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).

X

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^*

WALLACE RICHARD P

(Last) (First) (Middle)

ONE TECHNOLOGY DRIVE

(Street)

MILPITAS CALIFORNIA 95035

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
KLA CORP [ KLAC ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/12/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/12/2026		S		4,512(1)	D	$1,794	75,895.008(2)	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on November 19, 2025.

2. The number of shares of KLA common stock includes 57,511.168 shares issuable upon vesting of restricted stocck units ("RSUs").

	/s/ Jeffrey S. Cannon, as attorney-in-fact for Richard P. Wallace	05/12/2026
	** 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)

FAQ

How many KLA CORP (KLAC) shares did the CEO sell in this Form 4?

The President and CEO, Richard P. Wallace, sold 4,512 shares of KLA common stock. The transaction was reported as an open-market sale at a price of $1,794 per share on May 12, 2026.

At what price did KLA CORP (KLAC) shares sell in the reported CEO transaction?

The reported CEO sale occurred at $1,794 per share. This price applies to the 4,512 KLA common shares sold in the open market on May 12, 2026, as disclosed in the Form 4.

Was the KLA CORP (KLAC) CEO share sale under a Rule 10b5-1 plan?

Yes, the CEO sale was executed under a Rule 10b5-1 trading plan. The filing states the plan was adopted by Richard P. Wallace on November 19, 2025, indicating the transaction was pre-arranged rather than discretionary.

How many KLA CORP (KLAC) shares does the CEO hold after this Form 4 sale?

After the transaction, President and CEO Richard P. Wallace directly holds 75,895.008 KLA shares. The filing notes this total includes 57,511.168 shares that may be issued upon vesting of restricted stock units.

What portion of the KLA CORP (KLAC) CEO’s holdings are restricted stock units?

The filing reports 57,511.168 shares are tied to restricted stock units. These RSUs are part of the CEO’s total 75,895.008 share holding and will convert into common shares as they vest over time.