CIK 0000310158 · Large accelerated filer
Merck & Co., Inc.
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- MRK
- Exchange
- NYSE
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- NJ
- Entity type
- operating
- EIN
- 221918501
- Phone
- 908-740-4000
- Business address
- 126 EAST LINCOLN AVENUE, P.O. BOX 2000, RAHWAY, NJ, 07065
- Former names
- Merck & Co. Inc., SCHERING PLOUGH CORP
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-05-02 | Maraldo David R. EVP & Pres. MMD | Option exercise | +552 | $112.16 | $62K | 18,371.43 |
| 2026-05-02 | Maraldo David R. EVP & Pres. MMD | Shares withheld for taxes | −159 | $112.16 | $18K | 18,212.43 |
| 2026-05-02 | Maraldo David R. EVP & Pres. MMD | Option exercise · Restricted Stock Unit | −552 | 0 | ||
| 2026-04-30 | Smart Dalton E. III SVP Fin. - Global Controller | Option exercise | +464 | $110.95 | $51K | 9,296.32 |
| 2026-04-30 | Smart Dalton E. III SVP Fin. - Global Controller | Shares withheld for taxes | −159 | $110.95 | $18K | 9,137.32 |
| 2026-04-30 | Smart Dalton E. III SVP Fin. - Global Controller | Option exercise · Restricted Stock Unit | −464 | 465 | ||
| 2026-04-30 | Larson Betty D EVP, Chief HR Officer | Option exercise | +11,350 | $110.95 | $1.3M | 18,917 |
| 2026-04-30 | Larson Betty D EVP, Chief HR Officer | Shares withheld for taxes | −5,143 | $110.95 | $571K | 13,774 |
| 2026-04-30 | Larson Betty D EVP, Chief HR Officer | Option exercise · Restricted Stock Unit | −11,350 | 11,350 | ||
| 2026-04-29 | Guindo Chirfi EVP, Access, Policy & Comms | Option exercise | +1,967 | $110.03 | $216K | 62,582.13 |
| 2026-04-29 | Guindo Chirfi EVP, Access, Policy & Comms | Shares withheld for taxes | −969 | $110.03 | $107K | 61,613.13 |
| 2026-04-29 | Guindo Chirfi EVP, Access, Policy & Comms | Option exercise · Restricted Stock Unit | −1,967 | 3,935 | ||
| 2026-04-29 | Chattopadhyay Sanat Exe V-P & Pres. MMD | Option exercise | +2,597 | $110.03 | $286K | 16,477 |
| 2026-04-29 | Chattopadhyay Sanat Exe V-P & Pres. MMD | Shares withheld for taxes | −1,130 | $110.03 | $124K | 15,347 |
| 2026-04-29 | Chattopadhyay Sanat Exe V-P & Pres. MMD | Option exercise · Restricted Stock Unit | −2,597 | 5,194 | ||
| 2026-04-29 | DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Option exercise | +2,518 | $110.03 | $277K | 162,778.07 |
| 2026-04-29 | DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Shares withheld for taxes | −1,241 | $110.03 | $137K | 161,537.07 |
| 2026-04-29 | DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Option exercise · Restricted Stock Unit | −2,518 | 5,037 | ||
| 2026-04-29 | Williams David Michael EVP,Chief Info&Digital Officer | Option exercise | +1,377 | $110.03 | $152K | 32,395.04 |
| 2026-04-29 | Williams David Michael EVP,Chief Info&Digital Officer | Shares withheld for taxes | −679 | $110.03 | $75K | 31,716.04 |
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