InsiderTrades

Form 4 for OLN OLIN Corp

Accepted 2026-02-24 00:00:00 ET · period of report 2026-02-20 · accession 0001729998-26-000004 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-02-24 2026-02-20 OLN VERMILLION TERESA M VP, Treas M - OptEx — +2,318 19.6K +13% —
D 2026-02-24 2026-02-20 OLN VERMILLION TERESA M VP, Treas F - Tax $24.09 -674 18.9K -3% -$16.2K
D 2026-02-24 2026-02-20 OLN VERMILLION TERESA M VP, Treas M - OptEx $0.00 -2,318 4,634 -33% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-02-20 M A 2,318 — 19,596 D — — (F1) Restricted stock units convert into common stock on a one-on-one basis.
2 Common Common Stock 2026-02-20 F D 674 $24.09 18,922 D — —
3 Derivative Restricted Stock Units 2026-02-20 M D 2,318 $0.00 4,634 D — · — to — 2,318 Common Stock (F1) Restricted stock units convert into common stock on a one-on-one basis. (F3) 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.