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Darnall Matthew S

Disclosed activity across 1 company

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49830
SEC CIK
0001887503

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
OLIN CorpOLN · Entity 4525DirectorMay 01, 2026May 05, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

OLIN Corp

Report date May 01, 2026 · Filed May 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Phantom Stock UnitsSEC Table II · derivative / convertible securityDirect42,721.809 Reported balance After 2026-05-01 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-05-01 · Grant · Acquired 10,535 · Balance 42,721.809

F1: Security converts to common stock on a one-to-one basis.

F2: Represents a portion of the annual director compensation granted under the Olin Corporation Non-Employee Director Deferred Compensation Plan.

Filing footnotes · ownership attribution and instrument terms

F1: Security converts to common stock on a one-to-one basis.

F2: Represents a portion of the annual director compensation granted under the Olin Corporation Non-Employee Director Deferred Compensation Plan.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 01, 2026 Filed May 5, 2026 17:46 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 10,535 $28.48 $300,036.80
Disclosure

SEC source: 0001887503-26-000002 · wk-form4_1778003182.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,721.809

Underlying: Common Stock · 10,535 shares

Expires not disclosed

F1 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F2 · derivative.exercise_date: Represents a portion of the annual director compensation granted under the Olin Corporation Non-Employee Director Deferred Compensation Plan.

F2 · derivative.expiration_date: Represents a portion of the annual director compensation granted under the Olin Corporation Non-Employee Director Deferred Compensation Plan.

Read SEC document
May 01, 2025 Filed May 5, 2025 20:29 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 13,751 $21.77 $299,359.27
Disclosure

SEC source: 0000074303-25-000085 · wk-form4_1746476989.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,186.809

Underlying: Common Stock · 13,751 shares

Expires not disclosed

F1 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F2 · derivative.exercise_date: Represents the annual director compensation grants that are credited to the reporting person's deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-Employee Directors.

F2 · derivative.expiration_date: Represents the annual director compensation grants that are credited to the reporting person's deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-Employee Directors.

Read SEC document
May 01, 2024 Filed May 3, 2024 17:02 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 4,851 $52.58 $255,065.58
Disclosure

SEC source: 0000074303-24-000113 · wk-form4_1714755714.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,435.809

Underlying: Common Stock · 4,851 shares

Expires not disclosed

F1 · security: Represents the annual director compensation grants that are credited to the reporting person's deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-Employee Directors.

F2 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F1 · derivative.exercise_date: Represents the annual director compensation grants that are credited to the reporting person's deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-Employee Directors.

F1 · derivative.expiration_date: Represents the annual director compensation grants that are credited to the reporting person's deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-Employee Directors.

Read SEC document
December 08, 2023 Filed Dec 12, 2023 16:25 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 54.037 $50.08 $2,706.17
Disclosure

SEC source: 0000074303-23-000187 · wk-form4_1702398319.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,584.809

Underlying: Common Stock · 54.037 shares

Expires not disclosed

F1 · security: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $50.08 per share as of 12/08/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) or up to 10 annual installments.

F2 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F1 · derivative.exercise_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $50.08 per share as of 12/08/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) or up to 10 annual installments.

F1 · derivative.expiration_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $50.08 per share as of 12/08/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) or up to 10 annual installments.

Read SEC document
September 08, 2023 Filed Sep 12, 2023 17:27 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 53.64 $50.25 $2,695.41
Disclosure

SEC source: 0000074303-23-000162 · wf-form4_169453963817889.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,530.772

Underlying: Common Stock · 53.64 shares

Expires not disclosed

F1 · security: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $50.25 per share as of 8/10/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, other (i) in a lump sum or (ii) over up to 10 annual installments.

F2 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F1 · derivative.exercise_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $50.25 per share as of 8/10/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, other (i) in a lump sum or (ii) over up to 10 annual installments.

F1 · derivative.expiration_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $50.25 per share as of 8/10/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, other (i) in a lump sum or (ii) over up to 10 annual installments.

Read SEC document
June 09, 2023 Filed Jun 13, 2023 19:03 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 52.267 $51.37 $2,684.96
Disclosure

SEC source: 0000074303-23-000126 · wf-form4_168668302022063.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,477.132

Underlying: Common Stock · 52.267 shares

Expires not disclosed

F1 · security: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $51.37 per share as of 6/9/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, other (i) in a lump sum or (ii) over up to 10 annual installments.

F2 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F1 · derivative.exercise_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $51.37 per share as of 6/9/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, other (i) in a lump sum or (ii) over up to 10 annual installments.

F1 · derivative.expiration_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $51.37 per share as of 6/9/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, other (i) in a lump sum or (ii) over up to 10 annual installments.

Read SEC document
May 01, 2023 Filed May 3, 2023 20:01 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 4,632 $55.07 $255,084.24
Disclosure

SEC source: 0000074303-23-000096 · wf-form4_168314410339945.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,424.865

Underlying: Common Stock · 4,632 shares

Expires not disclosed

F1 · security: Represents the annual director compensation grants that are credited to the reporting person's deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-Employee Directors.

F2 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F1 · derivative.exercise_date: Represents the annual director compensation grants that are credited to the reporting person's deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-Employee Directors.

F1 · derivative.expiration_date: Represents the annual director compensation grants that are credited to the reporting person's deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-Employee Directors.

Read SEC document
March 13, 2023 Filed Mar 15, 2023 19:36 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 33.747 $51.91 $1,751.81
Disclosure

SEC source: 0000074303-23-000083 · wf-form4_167890895869239.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,792.865

Underlying: Common Stock · 33.747 shares

Expires not disclosed

F1 · security: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $51.91 per share as of 3/13/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

F2 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F1 · derivative.exercise_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $51.91 per share as of 3/13/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

F1 · derivative.expiration_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $51.91 per share as of 3/13/2023 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

Read SEC document
December 09, 2022 Filed Dec 13, 2022 14:05 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 32.096 $54.38 $1,745.38
Disclosure

SEC source: 0000074303-22-000166 · wf-form4_167094028608302.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,759.118

Underlying: Common Stock · 32.096 shares

Expires not disclosed

F1 · security: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $54.38 per share as of 12/09/2022 in exempt transactions. Shares of phantom stock are payable in cash following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

F2 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F1 · derivative.exercise_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $54.38 per share as of 12/09/2022 in exempt transactions. Shares of phantom stock are payable in cash following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

F1 · derivative.expiration_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $54.38 per share as of 12/09/2022 in exempt transactions. Shares of phantom stock are payable in cash following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

Read SEC document
September 09, 2022 Filed Sep 12, 2022 20:55 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 31.511 $55.19 $1,739.09
Disclosure

SEC source: 0000074303-22-000127 · wf-form4_166301610461222.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,727.022

Underlying: Common Stock · 31.511 shares

Expires not disclosed

F1 · security: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $55.19 per share as of 9/09/2022 in exempt transactions. Phantom stock units are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

F2 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F1 · derivative.exercise_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $55.19 per share as of 9/09/2022 in exempt transactions. Phantom stock units are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

F1 · derivative.expiration_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $55.19 per share as of 9/09/2022 in exempt transactions. Phantom stock units are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

Read SEC document
June 10, 2022 Filed Jun 14, 2022 18:10 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 28.073 $61.75 $1,733.51
Disclosure

SEC source: 0000074303-22-000105 · wf-form4_165523022906657.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,695.511

Underlying: Common Stock · 28.073 shares

Expires not disclosed

F1 · security: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $61.75 per share as of 6/10/2022 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

F2 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F1 · derivative.exercise_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $61.75 per share as of 6/10/2022 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

F1 · derivative.expiration_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $61.75 per share as of 6/10/2022 in exempt transactions. Shares of phantom stock are payable in cash or stock following the reporting person's termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

Read SEC document
May 02, 2022 Filed May 4, 2022 13:49 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 4,376 $58.95 $257,965.20
Disclosure

SEC source: 0000074303-22-000079 · wf-form4_165167212808355.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,667.438

Underlying: Common Stock · 4,376 shares

Expires not disclosed

F1 · security: Phantom shares of common stock are credited periodically to a deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors and are settled in common stock or cash following the date the reporting person ceases to be a director.

F2 · derivative.exercise_price: Phantom stock units convert into common stock on a one-to-one basis.

F1 · derivative.exercise_date: Phantom shares of common stock are credited periodically to a deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors and are settled in common stock or cash following the date the reporting person ceases to be a director.

F1 · derivative.expiration_date: Phantom shares of common stock are credited periodically to a deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors and are settled in common stock or cash following the date the reporting person ceases to be a director.

Read SEC document
March 11, 2022 Filed Mar 15, 2022 16:04 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 17.438 $49.02 $854.81
Disclosure

SEC source: 0000074303-22-000051 · wf-form4_164736026633945.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,291.438

Underlying: Common Stock · 17.438 shares

Expires not disclosed

F1 · security: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $49.02 per share as of 3/11/2022 in exempt transactions. Shares of phantom stock are payable in cash or stock following termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

F2 · derivative.exercise_price: Security converts to common stock on a one-to-one basis.

F1 · derivative.exercise_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $49.02 per share as of 3/11/2022 in exempt transactions. Shares of phantom stock are payable in cash or stock following termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

F1 · derivative.expiration_date: Dividend equivalents credited to the reporting person's account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors at $49.02 per share as of 3/11/2022 in exempt transactions. Shares of phantom stock are payable in cash or stock following termination of service as a director of Olin, at the director's election, either (i) in a lump sum or (ii) over up to 10 annual installments.

Read SEC document
November 11, 2021 Filed Nov 15, 2021 14:48 UTC OLIN Corp OLN · Entity 4525 GrantPhantom Stock Units · Derivative 4,274 $61.15 $261,355.10
Disclosure

SEC source: 0000074303-21-000182 · wf-form4_163698767614165.xml · derivative · entry 1

Darnall Matthew S · CIK 0001887503 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,274

Underlying: Phantom Stock Units · 4,274 shares

Expires not disclosed

F1 · security: Shares of common stock granted under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors for which the reporting person elected to defer. Phantom shares of common stock are also credited periodically to a deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors and are settled in common stock or cash following the date the reporting person ceases to be a director.

F2 · derivative.exercise_price: Restricted stock units convert into common stock on a one-to-one basis.

F1 · derivative.exercise_date: Shares of common stock granted under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors for which the reporting person elected to defer. Phantom shares of common stock are also credited periodically to a deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors and are settled in common stock or cash following the date the reporting person ceases to be a director.

F1 · derivative.expiration_date: Shares of common stock granted under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors for which the reporting person elected to defer. Phantom shares of common stock are also credited periodically to a deferred stock account under the Amended and Restated Olin Corporation 1997 Stock Plan for Non-employee Directors and are settled in common stock or cash following the date the reporting person ceases to be a director.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.