OLIN Corp Insider Trading Activity

Olin Corp director Beverley A. Babcock received equity-based compensation in the form of common stock and phantom stock units.

Rhea-AI Filing Summary

Olin Corp director Beverley A. Babcock received equity-based compensation in the form of common stock and phantom stock units. On May 1, 2026, she was granted 2,107 shares of common stock at $28.48 per share, bringing her direct holdings to 5,625 shares.

She was also granted 4,916 phantom stock units at a reference price of $28.48, increasing her phantom stock balance to 38,508 units. Footnotes explain these awards represent portions of her annual director compensation under Olin’s Non-Employee Director Deferred Compensation Plan and that the phantom stock units convert into common stock on a one-to-one basis.

Insider Trade Summary

Grant/Award: 7,023 shares

Grant/Award 2 txns

Insider Babcock Beverley A

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock Units	4,916	$28.48	$140K
Grant/Award	Common Stock $1 par value	2,107	$28.48	$60K

Holdings After Transaction: Phantom Stock Units — 38,508 contracts (Direct); Common Stock $1 par value — 5,625 shares (Direct)

Footnotes (3)

1. F1. Represents a portion of the annual director compensation granted under the Olin Corporation Non-Employee Director Deferred Compensation Plan ("Directors Plan").
2. F2. Security converts to common stock on a one-to-one basis.
3. F3. Represents a portion of the annual director compensation grants that are credited to the reporting person's deferred stock account under the Directors Plan.

Key Figures

Common stock granted: 2,107 shares Grant price per share: $28.48 per share Shares held after grant: 5,625 shares +2 more

5 metrics

Common stock granted 2,107 shares Non-derivative award on May 1, 2026

Grant price per share $28.48 per share Reference price for stock and phantom units

Shares held after grant 5,625 shares Total common stock directly held post-transaction

Phantom units granted 4,916 units Derivative award on May 1, 2026

Phantom units after grant 38,508 units Total phantom stock units outstanding for the director

Key Terms

Phantom Stock Units, Non-Employee Director Deferred Compensation Plan, deferred stock account, converts to common stock on a one-to-one basis

4 terms

Phantom Stock Units financial

"security_title: "Phantom Stock Units""

Phantom stock units are company promises that pay a cash or stock-equivalent award tied to the firm’s share price or value growth, but they do not issue actual shares. Think of them as a bonus check that moves with the stock like a mirror rather than handing over an ownership slice. Investors care because these awards can affect a company’s future cash obligations, executive incentives and reported expenses without causing share dilution.

Non-Employee Director Deferred Compensation Plan financial

"granted under the Olin Corporation Non-Employee Director Deferred Compensation Plan ("Directors Plan")"

deferred stock account financial

"credited to the reporting person's deferred stock account under the Directors Plan"

converts to common stock on a one-to-one basis financial

"Security converts to common stock on a one-to-one basis."

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Accepted by SEC EDGAR 05/05/2026 - 01:39 PM EDT 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^*

Babcock Beverley A

(Last) (First) (Middle)

C/O OLIN CORPORATION

190 CARONDELET PLZ, STE 1530

(Street)

CLAYTON MISSOURI 63105

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026

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)

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 $1 par value	05/01/2026		A		2,107(1)	A	$28.48	5,625	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
Phantom Stock Units	(2)	05/01/2026		A		4,916		(3)	(3)	Common Stock	4,916	$28.48	38,508	D

Explanation of Responses:

1. Represents a portion of the annual director compensation granted under the Olin Corporation Non-Employee Director Deferred Compensation Plan ("Directors Plan").

2. Security converts to common stock on a one-to-one basis.

3. Represents a portion of the annual director compensation grants that are credited to the reporting person's deferred stock account under the Directors Plan.

Remarks:

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