Klaus Ilgenfritz - 10 Mar 2026 Form 4 Insider Report for COHU INC (COHU)

Role: Sr. VP & Chief Product Officer
Signature: /s/ Jeffrey D. Jones, by Power of Attorney
Issuer symbol: COHU
Transactions as of: 10 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 12 Mar 2026, 18:27:09 UTC
Previous filing: 18 Mar 2025
Next filing: 13 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Ilgenfritz Klaus	Sr. VP & Chief Product Officer	17087 VIA DEL CAMPO, SAN DIEGO	/s/ Jeffrey D. Jones, by Power of Attorney	12 Mar 2026	0002061573

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	COHU	Performance Stock Units	Award		+13,076	+17%	$0.000000^*	90,461	10 Mar 2026	Direct	F1
transaction	COHU	Restricted Stock Units	Award		+13,076	+14%	$0.000000^*	103,537	10 Mar 2026	Direct	F2
transaction	COHU	Common Stock Units	Tax liability		-2,225	-2.1%	$0.000000^*	101,312	11 Mar 2026	Direct	F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents Performance Stock Units (also referred to as RSUs) that will be converted on a one-for-one basis into shares of Cohu, Inc. Common Stock upon vesting. These performance stock units will be earned only after the certification of achievement of specified performance goals (total shareholder return). Provided such goals are achieved and subject to continued service through the vesting date, performance is scheduled and measured in full on the third anniversary of the date of grant. The number of shares shown is the target award level. The actual number of shares that may vest ranges from 0% to 200% of the target amount, depending on achievement of specified performance goals.
F2	Each Restricted Stock Unit (RSU) represents a contingent right to receive one share of Cohu, Inc. Common Stock upon vesting. The RSUs vest in four equal annual installments beginning with the anniversary of the date of grant (assuming continued service through the vesting dates).
F3	Represents shares that were automatically withheld upon vesting of Restricted Stock Units (RSUs) to cover tax obligations in a transaction exempt under Rule 16(b)-3.
F4	Number of shares includes 84,896 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).