InsiderTrades

Form 4 for MRK Merck & Co.

Accepted 2026-05-05 13:51:47 ET · period of report 2026-05-02 · accession 0000310158-26-000115 · 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 2026-05-05 13:51 2026-05-02 MRK Smart Dalton E. III SVP Fin. - Gbl Ctrl M - OptEx $112.16 +383 9,520 +4% +$43.0K
D 2026-05-05 13:51 2026-05-02 MRK Smart Dalton E. III SVP Fin. - Gbl Ctrl F - Tax $112.16 -132 9,388 -1% -$14.8K
D 2026-05-05 13:51 2026-05-02 MRK Smart Dalton E. III SVP Fin. - Gbl Ctrl M - OptEx $0.00 -383 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-05-02 M A 383 $112.16 9,520.32 D — —
2 Common Common Stock 2026-05-02 F D 132 $112.16 9,388.32 D — —
3 Derivative Restricted Stock Unit 2026-05-02 M D 383 $0.00 0 D — · 2024-05-02 to 2026-05-02 383 Common Stock (F1) Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock. (F2) These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 5/2/2024, 5/2/2025, and 5/2/2026.