OLIN Corp (NYSE: OLN) director receives 7,023 phantom stock units as compensation

Rhea-AI Filing Summary

OLIN Corp director Julie A. Piggott received a grant of 7,023 Phantom Stock Units tied to OLIN common stock. The units were awarded at a reference price of $28.48 per unit as part of her annual director compensation under the Olin Corporation Non-Employee Director Deferred Compensation Plan.

Each Phantom Stock Unit converts to one share of common stock on a one-to-one basis. Following this award, Piggott holds a total of 21,494.751 Phantom Stock Units directly, representing deferred, stock-based compensation rather than an open-market purchase or sale.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider PIGGOTT JULIE A

Role null

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

Holdings After Transaction: Phantom Stock Units — 21,494.751 shares (Direct, null)

Footnotes (1)

1. Security converts to common stock on a one-to-one basis. 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 Units after grant: 21,494.751 units +1 more

4 metrics

Phantom Stock Units granted 7,023 units Director equity award on May 1, 2026

Grant reference price $28.48 per unit Phantom Stock Units valuation at grant

Total Phantom Units after grant 21,494.751 units Director’s Phantom Stock Units holding after 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

"Security title is listed as "Phantom Stock Units" with a one-to-one conversion"

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 A is described as "Grant, award, or other acquisition""

underlying security financial

"Underlying security title is listed as Common Stock with matching shares"

Form 4 Insider Transactions: What Each Field Means →

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^*

PIGGOTT JULIE A

(Last) (First) (Middle)

C/O OLIN CORPORATION

190 CARONDELET PLAZA, 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	21,494.751	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)

FAQ

What insider transaction did OLIN Corp (OLN) director Julie Piggott report?

Julie A. Piggott reported receiving 7,023 Phantom Stock Units linked to OLIN common stock. The award represents part of her annual director compensation and is structured as deferred stock-based pay rather than a cash salary component or an open-market share purchase.

How are Julie Piggott’s Phantom Stock Units at OLIN Corp (OLN) valued?

The 7,023 Phantom Stock Units were granted at a reference price of $28.48 per unit. This price is typically used to calculate the value of the equity-based compensation at grant and helps determine the dollar amount of the director’s deferred compensation.

How many Phantom Stock Units does Julie Piggott hold after this OLN grant?

After the May 1, 2026 award, Julie A. Piggott holds 21,494.751 Phantom Stock Units. These units track OLIN common stock value, providing equity-linked compensation that aligns a non-employee director’s interests with shareholders over time through deferred stock-based awards.

Do Julie Piggott’s Phantom Stock Units at OLIN Corp convert into common shares?

Yes. Each Phantom Stock Unit converts into one share of OLIN common stock on a one-to-one basis. This means the 7,023 newly awarded units are economically equivalent to 7,023 shares once they are ultimately settled according to the plan’s terms.

Is Julie Piggott’s OLN Phantom Stock Unit award an open-market stock purchase?

No. The 7,023 Phantom Stock Units were granted as compensation, coded as a grant or award acquisition. It is not an open-market purchase or sale but a deferred equity-based payment under the Olin Corporation Non-Employee Director Deferred Compensation Plan.