Robert Joseph Haire - 03 Mar 2026 Form 4 Insider Report for STEPAN CO (SCL)

Role: EVP, Supply Chain
Signature: /s/ James A. Hart, attorney-in-fact for Robert Haire
Issuer symbol: SCL
Transactions as of: 03 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 05 Mar 2026, 19:26:01 UTC
Previous filing: 04 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Haire Robert Joseph	EVP, Supply Chain	1101 SKOKIE BOULEVARD, SUITE 500, NORTHBROOK	/s/ James A. Hart, attorney-in-fact for Robert Haire	05 Mar 2026	0001976755

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SCL	Common Stock	Options Exercise		+1,670	+66%	$48.98^*	4,209	03 Mar 2026	Direct	F1
transaction	SCL	Common Stock	Tax liability		-490	-12%	$48.98^*	3,719	03 Mar 2026	Direct	F2
transaction	SCL	Common Stock	Options Exercise		+571	+15%	$49.62^*	4,290	04 Mar 2026	Direct	F1
transaction	SCL	Common Stock	Tax liability		-168	-3.9%	$49.62^*	4,122	04 Mar 2026	Direct	F2
holding	SCL	Common Stock						90	03 Mar 2026	By ESOP II Trust

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SCL	Restricted Stock Units	Options Exercise		-1,670	-33%	$0.000000^*	3,342	03 Mar 2026	Restricted Stock Units	1,670		Direct	F1, F3, F4
transaction	SCL	Restricted Stock Units	Options Exercise		-571	-50%	$0.000000^*	572	04 Mar 2026	Restricted Stock Units	571		Direct	F1, F4, F5

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

Explanation of Responses:

Id	Content
F1	The restricted stock units ("RSUs") were settled in shares of common stock per the terms of the award.
F2	Withholding of shares to satisfy tax liability on the vesting of RSUs.
F3	Each RSU represents a contingent right to receive one share of Stepan Company common stock.
F4	Vest ratably over three years beginning on the date shown.
F5	Each RSU represents a contingent right to receive one share of Stepan Company common stock.