Dundon Thomas G. 4

What Happened Thomas G. Dundon, a reported 10% owner of Callaway Golf Co. (CALY), received an award of 8,181 restricted stock units (RSUs) on May 21, 2026. The RSUs were granted at $0.00 per unit (total reported value $0) and are a derivative award that represent contingent rights to receive common stock. This filing reports the grant (transaction code A — award/grant).

Key Details

• Transaction date: 2026-05-21; Price per RSU: $0.00; Total reported value: $0.
• Grant type: Restricted Stock Units (RSUs) — each RSU equals a contingent right to one share (Footnote F1).
• Vesting: RSUs vest in full on the first anniversary of the grant (May 21, 2027) (Footnote F2).
• Scope: This filing covers only the RSUs granted on May 21, 2026 and does not include other RSUs with different vesting terms (Footnote F3).
• Shares owned after transaction: not specified in this filing.
• Timeliness: Filing reports the grant date and was filed with the same report date; no late filing indicated.

Context RSU grants are a form of equity compensation and are not an open-market purchase or sale — they become shares only if/when they vest and are typically restricted until then. As a 10% owner, Dundon is a significant holder, so this is reporting of an insider award rather than routine employee trading. This filing is informational and does not, by itself, indicate a buy or sell signal.