FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * STEPAN F QUINN JR   2. Issuer Name and Ticker or Trading Symbol STEPAN CO [SCL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chairman, President & CEO (Last) (First) (Middle) 22 W. FRONTAGE ROAD 3. Date of Earliest Transaction (Month/Day/Year) 02/25/2019 (Street) NORTHFIELD, IL 60093 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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 02/25/2019   M   18,476 A $ 42.765 202,575.935 D   Common Stock 02/25/2019   D(1)   18,476 D $ 94.73 184,099.935 D   Common Stock               106,672 D (2)   Common Stock               160,000 I By Family LLC (3) Common Stock               48,000 I By Family Trust (3) Common Stock               71,382 I By Family Trust III Common Stock               40,000 I By Family Trust IV (3) Common Stock               358 I By Spouse Common Stock               11,274.429 I By Esop II Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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

Stock Appreciation Right

$ 42.765 (4)

02/25/2019

M

18,476

02/14/2014

02/13/2022

Common Stock

18,476

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
STEPAN F QUINN JR 22 W. FRONTAGE ROAD NORTHFIELD, IL 60093	X		Chairman, President & CEO

Signatures

/s/ Stephanie J. Pacitti, attorney-in-fact for F. Quinn Stepan, Jr.		02/27/2019
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The stock appreciation rights ("SARs") were settled in cash as per the terms of the award. For reporting purposes, however, the transaction is deemed to be a simultaneous acquisition and disposition of the underlying common stock and is reflected as such in this report.
(2)	Joint Tenancy with Spouse.
(3)	The Reporting Person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for the purpose of Section 16 or for any other purpose.
(4)	This award of SARs was previously reported as covering 9,238 shares of common stock at an exercise price of $85.53 per share, but has been adjusted to reflect the November 30, 2012 two-for-one stock split.

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