OLIN Corp Insider Trading Activity

Olin Corp VP & CFO Todd A. Slater reported equity compensation awards.

Rhea-AI Filing Summary

Olin Corp VP & CFO Todd A. Slater reported equity compensation awards. On February 18, 2026, he acquired 32,013 restricted stock units at $0.00 per unit, each representing a contingent right to receive one share of Olin common stock. These restricted stock units vest in three annual installments beginning on February 18, 2027, tying a significant portion of his compensation to the company’s future performance.

On the same date, he was also awarded 412 shares of Olin common stock at $0.00 per share as a direct grant. The filing additionally reflects indirect holdings of common stock through a joint revocable living trust and shares held under the Olin Corporation Retirement Savings Plan by the RSP trustee, but these are reported as positions rather than new open-market purchases or sales.

Insider Trade Summary

Grant/Award: 32,425 shares

Grant/Award 4 txns

Insider Slater Todd A

Role VP & CFO

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	32,013	$0.00	$0.00
Grant/Award	Common Stock	412	$0.00	$0.00
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Units — 32,013 contracts (Direct); Common Stock — 44,703 shares (Direct); Common Stock — 115,123 shares (Indirect, Joint Revocable Living Trust); Common Stock — 96.7778 shares (Indirect, By RSP Trustee)

Footnotes (3)

1. F1. 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 20, 2026.
2. F2. Each restricted stock unit represents a contingent right to receive one share of Olin Common Stock.
3. F3. The restricted stock units vest in three annual installments beginning on February 18, 2027.

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Accepted by SEC EDGAR 02/20/2026 - 04:15 PM EST Learn about SEC filing dates

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^*

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)
02/18/2026

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	02/18/2026		A		412	A	$0	44,703	D
Common Stock								115,123	I	Joint Revocable Living Trust
Common Stock								96.7778(1)	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
Restricted Stock Units	(2)	02/18/2026		A		32,013		(3)	(3)	Common Stock	32,013	$0	32,013	D

Explanation of Responses:

1. 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 20, 2026.

2. Each restricted stock unit represents a contingent right to receive one share of Olin Common Stock.

3. The restricted stock units vest in three annual installments beginning on February 18, 2027.

Remarks:

	/s/ E.C. Tanner, Attorney-in-Fact	02/20/2026
	** 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.