Olin director granted 7,023 phantom stock units

OLIN Corp director Carol A. Williams received a grant of 7,023 Phantom Stock Units as part of her annual director compensation.

Rhea-AI Filing Summary

OLIN Corp director Carol A. Williams received a grant of 7,023 Phantom Stock Units as part of her annual director compensation. These units were awarded under the Olin Corporation Non-Employee Director Deferred Compensation Plan and are classified as a grant, award, or other acquisition.

Each Phantom Stock Unit is linked to one share of OLIN Corp common stock on a one-to-one basis. Following this grant, Williams directly holds a total of 58,850 Phantom Stock Units, reflecting her accumulated deferred equity-based board compensation.

Insider Trade Summary

Grant/Award: 7,023 shares

Grant/Award 1 txn

Insider Williams Carol A

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock Units	7,023	$28.48	$200K

Holdings After Transaction: Phantom Stock Units — 58,850 contracts (Direct)

Footnotes (2)

1. F1. Security converts to common stock on a one-to-one basis.
2. F2. Represents a portion of the annual director compensation granted under the Olin Corporation Non-Employee Director Deferred Compensation Plan.

Key Figures

Phantom Stock Units granted: 7,023 units Grant reference price: $28.48 per unit Total Phantom Stock Units after grant: 58,850 units +1 more

4 metrics

Phantom Stock Units granted 7,023 units Grant to director Carol A. Williams

Grant reference price $28.48 per unit Phantom Stock Units transaction price per unit

Total Phantom Stock Units after grant 58,850 units Holdings following transaction

Conversion ratio 1 unit : 1 share Phantom Stock Units to OLIN common stock

Key Terms

Phantom Stock Units, Non-Employee Director Deferred Compensation Plan, Grant, award, or other acquisition, underlying security

4 terms

Phantom Stock Units financial

"OLIN Corp director Carol A. Williams received a grant of 7,023 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"

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

underlying security financial

"underlying_security_title: Common Stock"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did OLIN Corp (OLN) disclose about Carol A. Williams in this Form 4?

OLIN Corp reported that director Carol A. Williams received 7,023 Phantom Stock Units as a grant. These units form part of her annual director compensation under the company’s Non-Employee Director Deferred Compensation Plan and are tied one-for-one to OLIN common stock.

How many Phantom Stock Units did Carol A. Williams receive from OLIN Corp (OLN)?

Carol A. Williams received a grant of 7,023 Phantom Stock Units. This award increases her deferred equity-based compensation balance and is classified as a grant, award, or other acquisition, rather than an open-market purchase of OLIN Corp common shares.

What is the relationship between OLIN Corp Phantom Stock Units and common stock?

Each OLIN Corp Phantom Stock Unit converts to common stock on a one-to-one basis. This means every unit represents the economic equivalent of one share of OLIN common stock, aligning director compensation with shareholder value over time through deferred equity awards.

What is Carol A. Williams’ Phantom Stock Unit balance after this OLIN (OLN) grant?

After the 7,023-unit grant, Carol A. Williams directly holds 58,850 Phantom Stock Units. This figure reflects her cumulative deferred compensation awards as a non-employee director, all of which are linked to OLIN Corp common stock on a one-to-one conversion basis.

Was the OLIN Corp (OLN) Phantom Stock Unit transaction a market buy or sell?

No, the transaction was reported as a grant, award, or other acquisition, not a market trade. The Form 4 classifies it under transaction code “A,” indicating compensation-related issuance of Phantom Stock Units rather than an open-market purchase or sale of OLIN shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/05/2026 - 02:14 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^*

Williams Carol 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

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	(1)	05/01/2026		A		7,023		(2)	(2)	Common Stock	7,023	$28.48	58,850	D

Explanation of Responses:

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

2. Represents a portion of the annual director compensation granted under the Olin Corporation Non-Employee Director Deferred Compensation 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)