Brown William M 4

What Happened
William M. Brown, Chairman & CEO of 3M (MMM), had 8,578 restricted stock units (RSUs) convert into common shares on May 1, 2026. The conversion value was $142.50 per share (total value $1,222,365). To satisfy tax withholding, 3,912 shares were surrendered (disposed) valued at $557,460, leaving a net delivery to Brown of roughly 4,666 shares (net value ≈ $664,905). This was a vesting/conversion of RSUs rather than an open-market purchase or sell.

Key Details

• Transaction date: 2026-05-01; Form 4 filed 2026-05-04 (timely).
• Conversion (code M): 8,578 RSUs converted to 8,578 shares at $142.50 (value $1,222,365).
• Tax withholding (code F): 3,912 shares were withheld/disposed at $142.50 (value $557,460) to cover tax obligations.
• Net shares received by insider: ~4,666 shares (8,578 − 3,912), net value ≈ $664,905.
• Shares owned after the transaction: Not stated in the filing.
• Footnotes: F1 — each RSU equals a contingent right to one share; F2 — RSUs vest in three equal annual installments beginning May 3, 2025.
• Transaction codes: M = exercise/conversion of derivative (here, RSU conversion); F = payment of exercise price or tax liability (share withholding).
• Filing timeliness: Filed on May 4 for a May 1 transaction; Form 4 rules require filing within two business days, so this filing is timely.

Context
This was a standard RSU vesting and tax-withholding event (a non-cash, company-provided withholding of shares), not an open-market sale or purchase. The withholding is routine to cover tax liabilities and does not by itself indicate a change in insider sentiment. For investors, net acquisitions from vesting (as here) increase the insider's shareholding, whereas outright sales may be more informative about disposition.