Mummert Mark Richard 4

What Happened

• Mark Richard Mummert, Chief Supply Chain Officer at Albemarle (ALB), had 366 Performance Stock Units vest on 2026-02-26 and was credited 366 shares at $184.93 each (total value $67,684). To cover tax withholding on the vesting, 159 shares were withheld (disposed) at the same per-share value for $29,404, leaving a net of 207 shares retained by Mummert.
• This was an award/vesting event (not a market purchase or a voluntary sale). The withholding of shares to satisfy taxes is routine and reported as a disposition (code F).

Key Details

• Transaction date: 2026-02-26; reported on Form 4 filed 2026-03-02 (timely filed within the two-business-day requirement).
• Price per share reported: $184.93.
• Gross shares awarded: 366 (value $67,684); shares withheld for taxes: 159 (value $29,404); net shares retained: 207.
• Footnotes: F1 — PSUs granted 02/24/2023 (50% ROIC PSUs, 50% rTSR PSUs) all vested 02/26/2026. F2 — 159 shares withheld to meet tax liabilities associated with the vesting.
• Shares owned after the transaction: not specified in this filing.

Context

• These were vested Performance Stock Units from a 2023 grant that became ordinary shares upon vesting. The share withholding is a common cashless method to satisfy tax obligations and does not necessarily indicate a discretionary sale by the insider.