Carol A. Williams - 01 May 2026 Form 4 Insider Report for OLIN Corp (OLN)

Reporting relationship: Director
Issuer ticker: OLN
Reported as of: 01 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 May 2026, 14:14:18 UTC
Prior SEC filing: 19 May 2025
Next SEC filing: 15 May 2026
Source filing: View source filing
Reporting owner signature: /s/ E.C. Tanner, Attorney-in-Fact

Key filing fact

Carol A. Williams filed Form 4 for OLIN Corp (OLN) on 05 May 2026.

Key facts

This page summarizes Carol A. Williams's Form 4 filing for OLIN Corp (OLN).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 05 May 2026, 14:14.

Change

Previous filing in this sequence was filed on 19 May 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001398213 Primary reporting owner

Williams Carol A

Relationship: Director
Address: C/O OLIN CORPORATION, 190 CARONDELET PLZ, STE 1530, CLAYTON
Signature: /s/ E.C. Tanner, Attorney-in-Fact
Signature date: 05 May 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

OLN transaction Derivative

Phantom Stock Units

Award

Transaction value
Shares: +7,023
Change %: +14%
Price: $28.48^*
Shares after: 58,850
Date: 01 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 7,023
Exercise price
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

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

Footnote F2

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

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