Olin (NYSE: OLN) CFO exercises 92,250 options and sells 92,250 shares

Rhea-AI Filing Summary

Olin Corporation’s VP & CFO Todd A. Slater reported a stock option exercise and share sale. On February 3, 2026, he exercised 92,250 employee stock options at an exercise price of $13.14 per share, receiving the same number of Olin common shares.

That same day, he sold 92,250 common shares at a weighted average price of $22.4815 per share across multiple trades. After these transactions, he directly held 44,291 common shares, plus 115,123 shares held indirectly through a joint revocable living trust and 96.7778 shares held indirectly in the Olin Retirement Savings Plan.

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

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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^*

Slater Todd A

(Last) (First) (Middle)

C/O OLIN CORPORATION

190 CARONDELET PLZ, STE 1530

(Street)

CLAYTON MO 63105

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP & CFO

3. Date of Earliest Transaction (Month/Day/Year)
02/03/2026

4. If Amendment, Date of 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

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	02/03/2026		M		92,250	A	$13.14	136,541	D
Common Stock	02/03/2026		S		92,250	D	$22.4815(1)	44,291	D
Common Stock								115,123	I	Joint Revocable Living Trust
Common Stock								96.7778(2)	I	By RSP Trustee

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
Employee Stock Options (Right to Buy)	$13.14	02/03/2026		M			92,250	02/12/2017(3)	02/12/2026	Common Stock	92,250	$0	0	D

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.21 to $22.885, inclusive. The reporting person undertakes to provide to Olin Corporation, any security holder of Olin Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

2. The figure represents shares of Olin Common Stock held under the Olin Corporation Retirement Savings Plan (RSP), a tax conditioned plan reflecting transactions exempt under Rule 16b-3, as reported by the RSP Plan Administrator as of February 3, 2026.

3. The option vested in three equal annual installments on February 12, 2017, 2018 and 2019.

Remarks:

	/s/ E.C. Tanner, Attorney-in-Fact	02/05/2026
	** 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.

FAQ

What insider transaction did Olin (OLN) report for its CFO?

Olin’s VP & CFO Todd A. Slater exercised 92,250 stock options and sold 92,250 common shares on February 3, 2026. The trade converts options into stock, then monetizes those shares through an open-market sale at a weighted average price of $22.4815 per share.

At what prices did the Olin (OLN) CFO exercise and sell shares?

The CFO exercised 92,250 employee stock options at an exercise price of $13.14 per share, then sold 92,250 common shares at a weighted average price of $22.4815, based on multiple trades between $22.21 and $22.885 per share.

How many Olin (OLN) shares does the CFO hold after this Form 4?

After the reported transactions, the CFO directly owned 44,291 Olin common shares. He also had indirect beneficial ownership of 115,123 shares through a joint revocable living trust and 96.7778 shares held under the Olin Corporation Retirement Savings Plan as of February 3, 2026.

What type of derivative security did the Olin (OLN) CFO exercise?

The CFO exercised employee stock options, described as a “Right to Buy” Olin common stock. These options covered 92,250 shares at a $13.14 exercise price and had originally vested in three equal installments on February 12 of 2017, 2018, and 2019.

Were the Olin (OLN) CFO’s Retirement Savings Plan shares part of the sale?

No. The 96.7778 Olin common shares reported under the Retirement Savings Plan are held indirectly by the RSP trustee. They reflect plan holdings as of February 3, 2026 and are associated with transactions exempt under Rule 16b-3, separate from the open-market sale.

How is the Olin (OLN) CFO’s trust ownership reported in this filing?

The filing shows 115,123 Olin common shares held indirectly through a joint revocable living trust. These shares are reported as indirect beneficial ownership, distinct from the CFO’s 44,291 directly held shares following the February 3, 2026 option exercise and sale.