OLN · OLIN Corp

Restricted stock units convert into common stock on a one-on-one basis.

Restricted stock units convert into common stock on a one-on-one basis.

On June 17, 2024 the reporting person was granted 10,000 restricted stock units. 2,500 vested on June 17, 2025, 2,500 vested on June 17, 2026 and 5,000 will vest on June 17, 2027.

Restricted stock units convert into common stock on a one-to-one basis.

On June 1, 2024 the reporting person was granted 5,000 restricted stock units. 1,250 vested on June 1, 2025, 1,250 vested on June 1, 2026 and 2,500 will vest on June 1, 2027.

Restricted stock units convert into common stock on a one-to-one basis.

Restricted stock units convert into common stock on a one-to-one basis.

Restricted stock units convert into common stock on a one-to-one basis.

On May 15, 2023 the reporting person was granted 2,500 restricted stock units vesting on May 15, 2026.

Restricted stock units convert into common stock on a one-to-one basis.

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.

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.

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.

Restricted stock units convert into common stock on a one-to-one basis.

On May 1, 2025 the reporting person was granted 15,618 restricted stock units, 5,206 which vested on May 1, 2026, 5,206 vest on May 1, 2027 and 5,206 vest on May 1, 2028.

Restricted stock units convert into common stock on a one-to-one basis.

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

Represents a portion of the annual director compensation grants that are credited to the reporting person's deferred stock account under the Directors Plan.

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.

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.

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

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.

Restricted stock units convert into common stock on a one-to-one basis.

On May 1, 2025 the reporting person was granted 10,000 restricted stock units, 2,500 which vested on May 1, 2026, 2,500 vest on May 1, 2027 and 5,000 vest on May 1, 2028.

Restricted stock units convert into common stock on a one-on-one basis.

On March 18, 2024 the reporting person was granted 200,000 restricted stock units. 50,000 vested on March 18, 2025, 50,000 vested on March 18, 2026 and 100,000 will vest on March 18, 2027.

Restricted stock units convert into common stock on a one-on-one basis.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.71 to $23.743, inclusive. The reporting person undertakes to provide to Olin Corporation, any security holder of Olin Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote 1 to this Form 1.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.22 to $24.3415, inclusive. The reporting person undertakes to provide to Olin Corporation, any security holder of Olin Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote 2 to this Form 4.

Each restricted stock unit represents a contingent right to receive one share of Olin Common Stock.

On February 20, 2025 the reporting person was granted 10,138 restricted stock units, 3,380 shares vested on February 20, 2026, 3,379 shares vest on February 20, 2027 and 3,379 shares vest on February 20, 2028.

Restricted stock units convert into common stock on a one-on-one basis.

Each restricted stock unit represents a contingent right to receive one share of Olin Common Stock.

Restricted stock units convert into common stock on a one-to-one basis.

Restricted stock units convert into common stock on a one-on-one basis.

Restricted stock units convert into common stock on a one-to-one basis.

Restricted stock units convert into common stock on a one-to-one basis.

Restricted stock units convert into common stock on a one-on-one basis.

Restricted stock units convert into common stock on a one-to-one basis.

On February 20, 2025 the reporting person was granted 26,069 restricted stock units, 8,690 shares vested on February 20, 2026, 8,690 shares vest on February 20, 2027 and 8,689 shares vest on February 20, 2028.

Restricted stock units convert into common stock on a one-on-one basis.

On February 20, 2025 the reporting person was granted 20,276 restricted stock units, 6,759 shares vested on February 20, 2026, 6,759 shares vest on February 20, 2027 and 6,758 shares vest on February 20, 2028.

Restricted stock units convert into common stock on a one-on-one basis.

On February 20, 2025 the reporting person was granted 6,952 restricted stock units, 2,318 shares vested on February 20, 2026, 2,317 shares vest on February 20, 2027 and 2,317 shares vest on February 20, 2028.

Restricted stock units convert into common stock on a one-to-one basis.

On February 20, 2025 the reporting person was granted 18,827 restricted stock units, 6,276 vested on February 20, 2026, 6,276 will vest on February 20, 2027 and 6,275 will vest on February 20, 2028.

Restricted stock units convert into common stock on a one-to-one basis.

On February 20, 2025 the reporting person was granted 5,504 restricted stock units, 1,835 shares vested on February 20, 2026, 1,835 shares vest on February 20, 2027 and 1,834 shares vest on February 20, 2028.

Restricted stock units convert into common stock on a one-on-one basis.

On February 20, 2025 the reporting person was granted 108,617 restricted stock units, 36,206 shares vested on February 20, 2026, 36,206 shares vest on February 20, 2027 and 36,205 shares vest on February 20, 2028.

Restricted stock units convert into common stock on a one-on-one basis.

On February 20, 2025 the reporting person was granted 20,276 restricted stock units, 6,035 shares vested on February 20, 2026, 6,034 shares vest on February 20, 2027 and 6,034 shares vest on February 20, 2028.

Restricted stock units convert into common stock on a one-on-one basis.