Cohu CEO sells 55,794 shares at $60 via plan

Cohu’s President & CEO sold 55,794 shares under a pre-arranged Rule 10b5-1 plan and now directly holds 871,825 shares including a large RSU component.

Rhea-AI Filing Summary

COHU INC (COHU) reported that President & CEO Luis A. Muller sold 55,794 shares of common stock on September 21, 2026 at $60.00 per share in an open-market or private transaction made under a Rule 10b5-1(c) trading plan adopted on May 28, 2026. Following this sale, he holds 871,825 shares directly, including 508,101 RSUs that may convert into common stock upon future vesting and performance conditions.

Insider Trade Summary 10b5-1

Net Seller: 55,794 shares

Net Sell 1 txn

Insider Muller Luis A

Role President & CEO

Sold 55,794 shs ($3.35M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2, F3	55,794	$60.00	$3.35M

Holdings After Transaction: Common Stock — 871,825 shares (Direct)

Footnotes (3)

1. F1. Adoption date of referenced 10b5-1(c) plan is: 05-28-2026
2. F2. The shares with respect to this transaction were sold at an exact execution price of $60.00.
3. F3. Number of shares includes 508,101 RSUs (excluding the impact of shares that will be withheld to cover tax obligations) previously reported that in the future will be converted on a one-for-one basis into shares of Cohu, Inc. Common Stock immediately upon the vesting dates (assuming continued service through the vesting dates and achievement of specified performance goals).

Key Figures

Shares sold: 55,794 shares Sale price per share: $60.00 per share Shares held after transaction: 871,825 shares +2 more

5 metrics

Shares sold 55,794 shares Common stock sale by President & CEO on September 21, 2026

Sale price per share $60.00 per share Exact execution price for the 55,794 shares sold

Shares held after transaction 871,825 shares Direct holdings of Luis A. Muller following the reported sale

RSUs included in holdings 508,101 RSUs RSUs that may convert into common stock upon vesting and performance conditions

Rule 10b5-1 plan adoption date May 28, 2026 Adoption date of the trading plan covering the reported transaction

Key Terms

Rule 10b5-1(c) plan, RSUs, vesting dates, performance goals

4 terms

Rule 10b5-1(c) plan regulatory

"Adoption date of referenced 10b5-1(c) plan is: 05-28-2026"

RSUs financial

"Number of shares includes 508,101 RSUs (excluding the impact of shares"

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

vesting dates financial

"converted on a one-for-one basis into shares of Cohu, Inc. Common Stock immediately upon the vesting dates"

performance goals financial

"assuming continued service through the vesting dates and achievement of specified performance goals"

Performance goals are specific, measurable targets a company sets for financial results, operational milestones, or individual roles—examples include revenue, profit, production levels, or completion of a project. They matter to investors because meeting or missing these targets influences management pay, future forecasts, deal-related payments and market confidence; think of them as a scoreboard that helps outsiders judge whether the business is performing as promised.

FAQ

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

What insider transaction did COHU’s President & CEO report on this Form 4?

Luis A. Muller reported a sale of 55,794 shares of COHU common stock on September 21, 2026 at an execution price of $60.00 per share in an open-market or private transaction.

Was the COHU (COHU) CEO’s September 21, 2026 stock sale under a Rule 10b5-1 plan?

Yes. The sale was made pursuant to a Rule 10b5-1(c) trading plan with an adoption date of May 28, 2026, as disclosed in the footnotes and affirmed by the plan checkbox.

How many COHU (COHU) shares does CEO Luis A. Muller hold after this transaction?

After the sale, Luis A. Muller directly holds 871,825 shares of COHU common stock. This total includes both currently held shares and certain unvested equity awards disclosed in the filing.

How many RSUs are included in the COHU CEO’s reported post-transaction holdings?

The total of 871,825 shares includes 508,101 RSUs that will convert on a one-for-one basis into COHU common stock upon future vesting dates, assuming continued service and achievement of specified performance goals.

What conditions affect the 508,101 COHU RSUs held by the CEO?

The 508,101 RSUs will convert into COHU common stock on a one-for-one basis upon their vesting dates, which are subject to continued service through those dates and the achievement of specified performance goals.

What is notable about the execution price in the COHU CEO’s reported stock sale?

The filing specifies that the exact execution price for the 55,794 shares sold was $60.00 per share, as clarified in a transaction footnote.

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

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Available on EDGAR 09/21/2026 - 08:46 PM Accepted by SEC EDGAR 09/21/2026 - 08:46 PM Learn about SEC filing dates

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^*

Muller Luis A

(Last) (First) (Middle)

17087 VIA DEL CAMPO

(Street)

SAN DIEGO CALIFORNIA 92127

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
COHU INC [ COHU ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/21/2026

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	09/21/2026(1)		S		55,794	D	$60(2)	871,825(3)	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. Adoption date of referenced 10b5-1(c) plan is: 05-28-2026

2. The shares with respect to this transaction were sold at an exact execution price of $60.00.

3. Number of shares includes 508,101 RSUs (excluding the impact of shares that will be withheld to cover tax obligations) previously reported that in the future will be converted on a one-for-one basis into shares of Cohu, Inc. Common Stock immediately upon the vesting dates (assuming continued service through the vesting dates and achievement of specified performance goals).

	/s/ Jeffrey D. Jones, by Power of Attorney	09/21/2026
	** 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)