InsiderTrades

Form 4 for MRK Merck & Co.

Accepted 2026-08-07 16:21:19 ET · period of report 2026-08-05 · accession 0000310158-26-000215 · 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 2026-08-07 16:21 2026-08-05 MRK Maraldo David R. EVP, Pres. MMD M - OptEx $82.25 +18.7K 20.9K +853% +$1.54M
DM 2026-08-07 16:21 2026-08-05 MRK Maraldo David R. EVP, Pres. MMD S - Sale+OE $128.72 -18.7K 18.2K -51% -$2.41M
DM 2026-08-07 16:21 2026-08-05 MRK Maraldo David R. EVP, Pres. MMD M - OptEx $0.00 -18.7K 5,374 -78% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-08-05 M A 6,311 $73.73 24,523.43 D — —
2 Common Common Stock 2026-08-05 S D 6,311 $128.72 18,212.43 D — — (F1) The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $128.6400 to $128.8500, inclusive. The reporting person undertakes to provide to Merck & Co., Inc., any security holder of Merck & Co., Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above in the footnote.
3 Common Common Stock 2026-08-05 M A 9,709 $87.10 27,921.43 D — —
4 Common Common Stock 2026-08-05 S D 9,709 $128.72 18,212.43 D — — (F1) The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $128.6400 to $128.8500, inclusive. The reporting person undertakes to provide to Merck & Co., Inc., any security holder of Merck & Co., Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above in the footnote.
5 Common Common Stock 2026-08-05 M A 2,686 $84.71 20,898.43 D — —
6 Common Common Stock 2026-08-05 S D 2,686 $128.72 18,212.43 D — — (F1) The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $128.6400 to $128.8500, inclusive. The reporting person undertakes to provide to Merck & Co., Inc., any security holder of Merck & Co., Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above in the footnote.
7 Derivative Stock Option (Right to Buy) 2026-08-05 M D 6,311 $0.00 3,154 D $73.73 · 2022-05-04 to 2031-05-03 6,311 Common Stock (F2) The option vested and became exercisable in three equal installments on 5/4/2022, 5/4/2023, and 5/4/2024.
8 Derivative Stock Option (Right to Buy) 2026-08-05 M D 9,709 $0.00 0 D $87.10 · 2023-05-03 to 2032-05-02 9,709 Common Stock (F3) The option vested and become exercisable in three equal installments on 5/3/2023, 5/3/2024, and 5/3/2025.
9 Derivative Stock Option (Right to Buy) 2026-08-05 M D 2,686 $0.00 5,374 D $84.71 · 2026-04-29 to 2035-04-28 2,686 Common Stock (F4) The options vest and become exercisable in three equal installments on 4/29/2026, 4/29/2027, and 4/29/2028.