Insider at company (NASDAQ: KLAC) plans Rule 144 sale of 21,831 shares

Rhea-AI Filing Summary

An affiliate of the issuer of KLAC common stock filed a notice of proposed sale under Rule 144. The notice covers 21,831 common shares held at Fidelity Brokerage Services LLC, with a proposed sale date of August 7, 2026 on NASDAQ, following restricted stock vesting classified as compensation.

Over the prior three months, the reporting person, Mary B. Wilkinson, reported sales of 14,392 common shares on July 1, 2026, 4,295 shares on August 4, 2026, and 13,802 shares on August 5, 2026.

Key Figures

Shares to be sold: 21,831 shares Reported value of proposed sale: 4,313,150.67 Reported figure: 1,306,546,783 +4 more

7 metrics

Shares to be sold 21,831 shares Common stock proposed for sale on August 7, 2026

Reported value of proposed sale 4,313,150.67 Value figure associated with 21,831 common shares

Reported figure 1,306,546,783 Large numerical figure listed with NASDAQ common stock details

Shares sold July 1, 2026 14,392 shares Common stock sale reported in past 3 months section

Reported value July 1, 2026 sale 4,106,037.60 Value figure linked to 14,392-share sale

Shares sold August 4, 2026 4,295 shares Common stock sale reported in past 3 months section

Shares sold August 5, 2026 13,802 shares Common stock sale reported in past 3 months section

Key Terms

Rule 144, restricted stock vesting, compensation

3 terms

Rule 144 regulatory

"An affiliate of the issuer of KLAC common stock filed a notice of proposed sale under Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

restricted stock vesting financial

"Common | 08/06/2026 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

compensation financial

"Common | 08/06/2026 | Restricted Stock Vesting | Issuer | | | 21831 | 08/06/2026 | Compensation"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/07/2026 - 05:34 PM Accepted by SEC EDGAR 08/07/2026 - 05:34 PM Learn about SEC filing dates

FAQ

What does the KLAC Form 144 filing disclose?

The filing discloses a planned Rule 144 sale of 21,831 KLAC common shares held at Fidelity Brokerage Services LLC, with a proposed sale date of August 7, 2026 on NASDAQ, following restricted stock vesting as compensation.

How many KLAC shares is the insider planning to sell under this Form 144?

The insider plans to sell 21,831 KLAC common shares. These shares are reported as common stock held at Fidelity Brokerage Services LLC and are associated with restricted stock vesting categorized as compensation.

Who is the reporting person in the KLAC Form 144 and what is their address?

The reporting person is Mary B. Wilkinson, with an address at One Technology Drive, Milpitas, CA 95035. She is identified in connection with sales of KLAC common stock over the past three months.

What KLAC stock sales occurred in the three months before the proposed Form 144 sale?

Over the prior three months, Mary B. Wilkinson reported selling 14,392 KLAC common shares on July 1, 2026, 4,295 shares on August 4, 2026, and 13,802 shares on August 5, 2026.

What is the nature of the KLAC shares to be sold under this Form 144?

The shares are KLAC common stock arising from restricted stock vesting. The transaction is described as compensation-related, with the issuer listed as the source of the restricted stock that vested on August 6, 2026.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	21831	4313150.67	1306546783	08/07/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/06/2026	Restricted Stock Vesting	Issuer			21831	08/06/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Mary B. Wilkinson One Technology Drive Milpitas CA 95035	Common	07/01/2026	14392	4106037.60
Mary B. Wilkinson One Technology Drive Milpitas CA 95035	Common	08/04/2026	4295	822879.05
Mary B. Wilkinson One Technology Drive Milpitas CA 95035	Common	08/05/2026	13802	2698291.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)