Ehrhardt Marc 4

4 · OLIN Corp · Filed May 5, 2026

AI-generated summary of this filing

Updated May 5, 2026

OLIN VP Marc Ehrhardt Exercises RSUs; Shares Withheld

What Happened

Marc Ehrhardt, Vice President and President of Corporate Development at OLIN Corp (OLN), had restricted stock units (RSUs) convert into 7,706 shares on May 1, 2026 (5,206 + 2,500). To satisfy tax withholding, 1,877 of those shares were withheld and valued at $28.48 per share, totaling $53,457. The remaining 5,829 shares were delivered to him. The conversion is recorded as exercise/conversion of a derivative (code M) and the withholding is reported under code F.

Key Details

Transaction date: May 1, 2026; Form 4 filed May 5, 2026 (filed within the two-business-day window).
RSUs converted: 7,706 shares (5,206 and 2,500 from two separate grants).
Shares withheld for taxes: 1,877 @ $28.48 = $53,457.
Net shares delivered to insider: 5,829 shares.
Footnotes: F1 notes RSUs convert 1:1 to common stock. F2/F3 show these RSUs were granted May 1, 2025 with staggered vesting (portions vesting in 2026–2028).
Shares owned after transaction: not specified in this Form 4 filing.

Context

This was a routine vesting/conversion of RSUs, not an open-market purchase or sale. The withholding of shares to cover taxes is a common administrative step (similar to a sell-to-cover) and does not necessarily indicate a change in insider sentiment. Code explanations: M = exercise/conversion of a derivative (here, RSU conversion); F = shares withheld to satisfy tax withholding.

Form 4

Period: 2026-05-01

VP & Pres Corp Development

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-05-01+5,206→ 25,206 total
Exercise/Conversion
Common Stock
[F1]
2026-05-01+2,500→ 27,706 total
Tax Payment
Common Stock
2026-05-01$28.48/sh−1,877$53,457→ 25,829 total
Exercise/Conversion
Restricted Stock Units
[F1][F2]
2026-05-01−5,206→ 10,412 total
→ Common Stock (5,206 underlying)
Exercise/Conversion
Restricted Stock Units
[F1][F3]
2026-05-01−2,500→ 7,500 total
→ Common Stock (2,500 underlying)

Footnotes (3)

[F1]Restricted stock units convert into common stock on a one-to-one basis.
[F2]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.
[F3]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.

Signature

/s/ E.C. Tanner, Attorney-in-Fact|2026-05-05

1 file