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).

1. Name and Address of Reporting Person* Ferguson Scott D. (Last) (First) (Middle) 250 WEST 55TH STREET 34TH FLOOR (Street) NEW YORK NY 10019 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol OLIN Corp [ OLN ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 03/02/2020
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

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, par value $1.00 ("Shares")	03/02/2020		A		2,460(1)	A	$16.265	2,460	D(2)

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
Phantom Stock Units(3)	(4)	03/02/2020		A		7,100		(3)	(3)	Common Stock	7,100	$16.265(4)	7,100	D(2)

1. Name and Address of Reporting Person* Ferguson Scott D. (Last) (First) (Middle) 250 WEST 55TH STREET 34TH FLOOR (Street) NEW YORK NY 10019 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Sachem Head Capital Management LP (Last) (First) (Middle) 250 WEST 55TH STREET 34TH FLOOR (Street) NEW YORK NY 10019 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Uncas GP LLC (Last) (First) (Middle) 250 WEST 55TH STREET 34TH FLOOR (Street) NEW YORK NY 10019 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Sachem Head GP LLC (Last) (First) (Middle) 250 WEST 55TH STREET, 34TH FLOOR (Street) NEW YORK NY 10019 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Shares granted under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors, the Company's formula director compensation plan.

2. Pursuant to an arrangement between Mr. Ferguson and Sachem Head Capital Management LP ("Sachem Head"), the Shares and Phantom Stock Units are held by Mr. Ferguson for the benefit of Sachem Head. Such units are included as directly beneficially owned by Mr. Ferguson, but may also be deemed to be beneficially owned by Sachem Head and Uncas GP LLC, Sachem Head's General Partner, as a result of such arrangements. Each of the Reporting Persons disclaims beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein.

3. Phantom shares of common stock are also credited periodically to a deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors and are settled in common stock or cash following the date the reporting person ceases to be a director.

4. Security converts to common stock on a one-for-one basis.

	/s/ Michael D. Adamski, as General Counsel	03/04/2020
	/s/ Michael D. Adamski, as Attorney-in-Fact	03/04/2020
	/s/ Michael D. Adamski, as General Counsel	03/04/2020
	/s/ Michael D. Adamski, as General Counsel	03/04/2020
	** 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).
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