MGIC (MTG) CFO Nathaniel Colson Sells 20,000 Shares

What Happened Nathaniel H. Colson, EVP, CFO & CRO of MGIC Investment Corp (MTG), sold 20,000 shares in an open-market transaction on 2026-09-24 at $29.48 per share, generating proceeds of approximately $589,600. This was a sale (not a purchase) and was effected pursuant to a pre-established trading arrangement.

Key Details

• Transaction date and price: 2026-09-24 at $29.48 per share.
• Shares sold / value: 20,000 shares; proceeds ≈ $589,600.
• Filing date: Form 4 filed 2026-09-25 (timely relative to the trade date).
• Shares owned after transaction: Not specified in the information provided.
• Footnote: Transaction was effected under a Rule 10b5-1 trading plan adopted 2026-02-27.
• Transaction type: Code S (sale), open-market disposition.

Context Sales by executives can be routine (e.g., portfolio management or pre-planned sales). The 10b5-1 plan note indicates this transaction was prearranged, which is commonly used to avoid questions about timing. This Form 4 reports the disposition; it does not explain Colson’s motivations.