[Form 4] COHU INC Insider Trading Activity

Rhea-AI Filing Summary

Cohu, Inc. President & CEO Luis A. Muller reported an open-market sale of common stock. On May 22, 2026, he sold 45,154 shares of Cohu common stock at a weighted average price of $46.62 per share in multiple trades.

After this transaction, Muller directly holds 927,619 shares of Cohu common stock. His reported holdings also include 508,101 restricted stock units (RSUs) that are scheduled to convert into common shares on future vesting dates, subject to continued service and specified performance goals.

Insider Trade Summary

Net Seller: 45,154 shares ($2,105,079)

Net Sell 1 txn

Insider Muller Luis A

Role President & CEO

Sold 45,154 shs ($2.11M)

Type	Security	Shares	Price	Value
Sale	Common Stock	45,154	$46.62	$2.11M

Holdings After Transaction: Common Stock — 927,619 shares (Direct, null)

Footnotes (1)

1. The shares with respect to this transaction were sold in multiple trades at prices ranging from $46.14 to $47.08; the price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number shares sold at each separate price. 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: 45,154 shares Weighted average sale price: $46.62 per share Post-transaction direct holdings: 927,619 shares +2 more

5 metrics

Shares sold 45,154 shares Open-market sale on May 22, 2026

Weighted average sale price $46.62 per share Common stock sale on May 22, 2026

Post-transaction direct holdings 927,619 shares Directly held common stock after sale

RSUs outstanding 508,101 RSUs Convert one-for-one upon future vesting and performance

Sale price range $46.14–$47.08 per share Multiple trades, footnote F1

Key Terms

weighted average price, RSUs, vesting dates, performance goals

4 terms

weighted average price financial

"The shares with respect to this transaction were sold in multiple trades at prices ranging from $46.14 to $47.08; the price reported above reflects the 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.

RSUs financial

"Number of shares includes 508,101 RSUs (excluding the impact of shares that will be withheld to cover tax obligations) previously reported..."

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

"...in the future will be 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.

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).

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)
05/22/2026

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	05/22/2026		S		45,154	D	$46.62(1)	927,619(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. The shares with respect to this transaction were sold in multiple trades at prices ranging from $46.14 to $47.08; the price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number shares sold at each separate price.

2. 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	05/26/2026
	** 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

What did Cohu (COHU) CEO Luis A. Muller report in this Form 4?

Cohu President & CEO Luis A. Muller reported an open-market sale of 45,154 common shares on May 22, 2026 at a weighted average price of $46.62 per share, executed in multiple trades within a disclosed price range.

How many Cohu (COHU) shares did the CEO sell and at what price?

Luis A. Muller sold 45,154 shares of Cohu common stock at a weighted average price of $46.62 per share. Footnotes state the trades occurred between $46.14 and $47.08 per share across multiple executions.

How many Cohu (COHU) shares does the CEO hold after this transaction?

Following the reported sale, Luis A. Muller directly holds 927,619 shares of Cohu common stock. This figure reflects his direct ownership position immediately after the May 22, 2026 open-market transaction disclosed in the Form 4.

What RSU holdings for Cohu (COHU) does the CEO report in this filing?

The filing notes that Muller’s holdings include 508,101 restricted stock units (RSUs). These RSUs convert to Cohu common stock on a one-for-one basis upon future vesting dates, assuming continued service and achievement of specified performance goals.

Were Cohu (COHU) CEO Luis A. Muller’s shares sold in a single trade?

No. A footnote explains the 45,154 shares were sold in multiple trades at prices ranging from $46.14 to $47.08. The reported $46.62 per share reflects the weighted average price across those trades.