Coherent insider plans $1.05M stock sale

Rhea-AI Filing Summary

COHERENT CORP. (COHR) insider Sherri Luther filed a notice to sell common stock under Rule 144. The planned sale covers 3,000 shares of common stock issuable from restricted stock units originally acquired from the issuer on 10/11/2025. The filing lists an aggregate market value for the planned sale of $1,053,660.00 and references total common shares outstanding of 195,832,246, which is a baseline figure, not the amount being sold. A prior Rule 10b5‑1 sale by Sherri Luther of 1,000 shares for $306,680.00 on 07/22/2026 is also reported.

Key Figures

Planned shares to be sold: 3,000 shares Aggregate market value of planned sale: $1,053,660.00 Shares outstanding: 195,832,246 shares +3 more

6 metrics

Planned shares to be sold 3,000 shares Common stock covered by the Rule 144 notice linked to RSUs

Aggregate market value of planned sale $1,053,660.00 Estimated market value for the 3,000 COHR shares in the notice

Shares outstanding 195,832,246 shares Total COHERENT CORP. common shares outstanding referenced in the notice

RSU acquisition date 10/11/2025 Date the restricted stock units underlying the 3,000 shares were acquired

Prior 10b5-1 sale shares 1,000 shares COHR common shares sold for Sherri Luther on 07/22/2026

Proceeds from prior 10b5-1 sale $306,680.00 Value of 1,000 COHR shares sold on 07/22/2026

Key Terms

Rule 144, 10b5-1, Restricted Stock Units, aggregate market value

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of 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.

10b5-1 regulatory

"10b5-1 Sales for SHERRI LUTHER 375 Saxonburg Boulevard"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Restricted Stock Units financial

"Restricted Stock Units | Issuer | | | 3000 | 10/11/2025"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

aggregate market value financial

"| 3000 | 1053660.00 | 195832246 | 08/18/2026 |"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing mean for COHR and Sherri Luther?

The Form 144 reports Sherri Luther’s intent to sell 3,000 shares of COHERENT CORP. common stock under Rule 144. These shares relate to restricted stock units and follow a prior 1,000-share 10b5-1 sale on 07/22/2026.

How many COHR shares is Sherri Luther planning to sell under this notice?

Sherri Luther plans to sell 3,000 shares of COHERENT CORP. common stock. The notice ties these shares to restricted stock units acquired from the issuer on 10/11/2025 and provides pricing and market value data for the planned sale.

What is the reported market value of the COHR shares in this Form 144?

The filing lists an aggregate market value of $1,053,660.00 for the 3,000 COHR shares covered by the notice. This value reflects the estimated market worth for the planned Rule 144 sale, not an executed transaction amount.

How many COHERENT CORP. shares are outstanding according to this Form 144?

The Form 144 states that COHERENT CORP. has 195,832,246 common shares outstanding. This figure is provided as context about the company’s capital structure and is separate from the 3,000 shares covered by the planned sale.

What prior 10b5-1 sale by Sherri Luther in COHR stock is disclosed?

The filing notes a prior 10b5‑1 sale for Sherri Luther of 1,000 COHR common shares on 07/22/2026 for proceeds of $306,680.00. This transaction occurred within the three months preceding the current Rule 144 notice.

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

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Available on EDGAR 08/18/2026 - 04:28 PM Accepted by SEC EDGAR 08/18/2026 - 04:27 PM Learn about SEC filing dates

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	0001764515
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	COHERENT CORP.
SEC File Number	001-39375
Address of Issuer	375 Saxonburg Boulevard Saxonburg PENNSYLVANIA 16056
Phone	7243524455
Name of Person for Whose Account the Securities are To Be Sold	Sherri Luther
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	Officer

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3000	1053660.00	195832246	08/18/2026	NYSE

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	10/11/2025	Restricted Stock Units	Issuer			3000	10/11/2025	N/A

* 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
10b5-1 Sales for SHERRI LUTHER 375 Saxonburg Boulevard Saxonburg PA 16056	Common	07/22/2026	1000	306680.00

144: Remarks and Signature

Remarks
Date of Notice	08/18/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/13/2025
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	/s/ Sherri Luther
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)