Stepan corrects executive stock award to 140 shares

The amendment replaces the earlier 90-unit and 90-share figures with 140 each; the 50-share tax withholding remains as originally reported.

Available on EDGAR 11/05/2026 - 04:31 PM EST Accepted by SEC EDGAR 11/05/2026 - 04:27 PM EST Learn about SEC filing dates

This filing corrects an earlier one, and you can read the original Form 4 if you want to see what changed.

Rhea-AI Filing Summary

Stepan Co (SCL) reports that SVP and GM Surfactants-INT Robin Joseph Weitkamp disposed of 140 restricted stock units and acquired 140 common shares on May 11, 2026, when the units were settled in shares. The amendment corrects an earlier report of 90 RSUs and 90 shares; 50 common shares were withheld to satisfy tax liability, as originally reported.

Insider Trade Summary

140 shares exercised/converted

Exercise 3 txns

Insider Weitkamp Robin Joseph

Role SVP and GM Surfactants-INT

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units F4, F5	140	$0.00	$0.00
Exercise	Common Stock F1, F2	140	$52.58	$7K
Tax Withholding	Common Stock F3	50	$52.58	$3K

Holdings After Transaction: Restricted Stock Units — 140 contracts (Direct); Common Stock — 90 shares (Direct)

Holdings Before and After: Restricted Stock Units, 280 to 140 contracts (Direct)

Footnotes (5)

1. F1. The restricted stock units ("RSU") were settled in shares of common stock per the terms of the award.
2. F2. On May 12, 2026, the reporting person filed a Form 4 that inadvertently reported that he disposed of 90 RSUs and acquired 90 shares of Common Stock upon vesting of the RSUs. In fact, as reported in this amendment, the reporting person disposed of 140 RSUs and acquired 140 shares of Common Stock upon vesting of the RSUs. The original filing correctly reported the withholding of 50 shares of Common Stock to satisfy tax obligations arising from the settlement. This amendment also corrects the amounts of Common Stock and RSUs beneficially owned following the reported transactions to reflect the corrected transaction amounts.
3. F3. Withholding of shares to satisfy tax liability on the vesting of the RSUs.
4. F4. Each RSU represents a contingent right to receive one share of Stepan Company common stock.
5. F5. Vests ratably over three years beginning on the date shown.

Key Figures

Restricted stock units disposed: 140 units Common shares acquired: 140 shares Common shares withheld: 50 shares +1 more

4 metrics

Restricted stock units disposed 140 units Reported for May 11, 2026

Common shares acquired 140 shares RSU settlement reported for May 11, 2026

Common shares withheld 50 shares Withheld for tax liability on May 11, 2026

Reported per-share price $52.58 per share Common stock acquisition recorded May 11, 2026

Key Terms

restricted stock units, contingent right, vesting, tax liability

4 terms

restricted stock units financial

"The restricted stock units ("RSU") were settled in shares of common stock"

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.

contingent right financial

"Each RSU represents a contingent right to receive one share"

vesting financial

"acquired 140 shares of Common Stock upon vesting of the RSUs"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

tax liability financial

"Withholding of shares to satisfy tax liability"

FAQ

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

How many RSUs did Robin Joseph Weitkamp report settling at Stepan (SCL)?

The amendment reports that Robin Joseph Weitkamp disposed of 140 restricted stock units and acquired 140 common shares on May 11, 2026. The units were settled in common shares under the award terms.

How many Stepan (SCL) shares were withheld for tax?

50 common shares were withheld to satisfy tax liability arising from settlement of the restricted stock units on May 11, 2026. The original report had correctly included that withholding amount.

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

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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^*

Weitkamp Robin Joseph

(Last) (First) (Middle)

1101 SKOKIE BOULEVARD, SUITE 500

(Street)

NORTHBROOK ILLINOIS 60062

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
STEPAN CO [ SCL ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP and GM Surfactants-INT

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/11/2026

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)
05/12/2026

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	05/11/2026		M(1)		140(2)	A	$52.58	180	D
Common Stock	05/11/2026		F(3)		50	D	$52.58	90	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
Restricted Stock Units	(4)	05/11/2026		M			140	05/10/2025(5)	05/10/2027	Restricted Stock Units	140	$0	140	D

Explanation of Responses:

1. The restricted stock units ("RSU") were settled in shares of common stock per the terms of the award.

2. On May 12, 2026, the reporting person filed a Form 4 that inadvertently reported that he disposed of 90 RSUs and acquired 90 shares of Common Stock upon vesting of the RSUs. In fact, as reported in this amendment, the reporting person disposed of 140 RSUs and acquired 140 shares of Common Stock upon vesting of the RSUs. The original filing correctly reported the withholding of 50 shares of Common Stock to satisfy tax obligations arising from the settlement. This amendment also corrects the amounts of Common Stock and RSUs beneficially owned following the reported transactions to reflect the corrected transaction amounts.

3. Withholding of shares to satisfy tax liability on the vesting of the RSUs.

4. Each RSU represents a contingent right to receive one share of Stepan Company common stock.

5. Vests ratably over three years beginning on the date shown.

	/s/ Darina A. Koleva, attorney-in-fact for Robin Weitkamp	11/05/2026
	** 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)