Olin director granted 7,023 phantom stock units

Olin Corp director William H. Weideman received a grant of 7,023 Phantom Stock Units as part of annual director compensation.

Rhea-AI Filing Summary

Olin Corp director William H. Weideman received a grant of 7,023 Phantom Stock Units as part of annual director compensation. These Phantom Stock Units were awarded under the Olin Corporation Non-Employee Director Deferred Compensation Plan and convert into an equal number of shares of common stock on a one-to-one basis.

After this grant, Weideman holds a total of 53,657 Phantom Stock Units directly, all tied to Olin common stock. This is a routine, compensation-related award rather than an open-market stock purchase or sale.

Insider Trade Summary

Grant/Award: 7,023 shares

Grant/Award 1 txn

Insider Weideman William H

Role Director

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

Holdings After Transaction: Phantom Stock Units — 53,657 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 Reference price per unit: $28.48 per unit Total Phantom Stock Units after grant: 53,657 units +2 more

5 metrics

Phantom Stock Units granted 7,023 units Director compensation grant on 2026-05-01

Reference price per unit $28.48 per unit Reported transaction price for Phantom Stock Units

Total Phantom Stock Units after grant 53,657 units Holdings following reported transaction

Conversion ratio to common stock 1 unit : 1 share Security converts to common stock on a one-to-one basis

Underlying common shares 7,023 shares Underlying Olin common stock linked to granted units

Key Terms

Phantom Stock Units, Non-Employee Director Deferred Compensation Plan, Grant, award, or other acquisition, one-to-one basis

4 terms

Phantom Stock Units financial

"Security title is reported as Phantom Stock Units linked to common stock"

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 is Grant, award, or other acquisition"

one-to-one basis financial

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

FAQ

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

What did Olin (OLN) director William H. Weideman report in this Form 4?

He reported receiving 7,023 Phantom Stock Units as a compensation grant. These units were awarded under Olin’s Non-Employee Director Deferred Compensation Plan and are linked to Olin common stock, representing a routine, non-market, compensation-related acquisition rather than a stock market trade.

How many Olin (OLN) Phantom Stock Units does William H. Weideman hold after this grant?

After the grant, William H. Weideman holds 53,657 Phantom Stock Units directly. This total reflects his updated deferred equity-based compensation position tied to Olin common stock, as reported in the Form 4 insider filing for this compensation-related transaction.

What are Phantom Stock Units in the context of Olin (OLN)?

Phantom Stock Units are deferred compensation instruments tracking Olin common stock. In this case, each unit converts into one share of common stock on a one-to-one basis, giving directors equity-linked value without an immediate open-market stock purchase or sale.

Is the Olin (OLN) Form 4 transaction a stock purchase or sale?

No, the filing shows a grant of Phantom Stock Units, not a market purchase or sale. The transaction code is “A” for a grant or award, reflecting routine director compensation under Olin’s Non-Employee Director Deferred Compensation Plan, rather than discretionary trading activity.

How is the value of the Olin (OLN) Phantom Stock Unit grant measured in this Form 4?

The 7,023 Phantom Stock Units are reported with a reference price of $28.48 per unit. This figure is used for reporting purposes and, combined with the one-to-one conversion to common stock, helps indicate the notional value of the compensation-related equity grant.

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

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Accepted by SEC EDGAR 05/05/2026 - 01:35 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^*

Weideman William H

(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	53,657	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)