InsiderTrades

Form 4 for MRK Merck & Co.

Accepted 2026-05-01 17:55:32 ET · period of report 2026-04-29 · accession 0000310158-26-000090 · 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
DM 2026-05-01 17:55 2026-04-29+ MRK Smart Dalton E. III SVP Fin. - Gbl Ctrl M - OptEx $110.33 +1,408 9,296 +18% +$155.3K
DM 2026-05-01 17:55 2026-04-29+ MRK Smart Dalton E. III SVP Fin. - Gbl Ctrl F - Tax $110.33 -483 9,137 -5% -$53.3K
DM 2026-05-01 17:55 2026-04-29+ MRK Smart Dalton E. III SVP Fin. - Gbl Ctrl M - OptEx $0.00 -1,408 465 -75% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-04-29 M A 944 $110.03 9,156.32 D — — (F1) Holdings include shares acquired in dividend reinvestment transactions.
2 Common Common Stock 2026-04-29 F D 324 $110.03 8,832.32 D — —
3 Common Common Stock 2026-04-30 M A 464 $110.95 9,296.32 D — —
4 Common Common Stock 2026-04-30 F D 159 $110.95 9,137.32 D — —
5 Derivative Restricted Stock Unit 2026-04-29 M D 944 $0.00 1,889 D — · 2026-04-29 to 2028-04-29 944 Common Stock (F2) Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock. (F3) These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 4/29/2026, 4/29/2027 and 4/29/2028.
6 Derivative Restricted Stock Unit 2026-04-30 M D 464 $0.00 465 D — · 2025-04-30 to 2027-04-30 464 Common Stock (F2) Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock. (F4) These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 4/30/2025, 4/30/2026 and 4/30/2027.