Sanat Chattopadhyay

Companies

• Ashland Inc.Board member Nov 14, 2023 to now¹
• Merck & Co.Exe V-P & Pres. MMD Apr 8, 2016 to now²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Merck & Co. MRK68,764 shares³$10.2M at $149.02May 1, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Apr 29, 2026Shares withheld for tax 1,130 shares at $110.03 of Merck & Co.³
• Apr 29, 2026Exercised options 2,597 shares at $110.03 of Merck & Co.³
• Jan 26, 2026Granted 13,880 shares at $107.40 of Merck & Co.⁴
• Jan 27, 2025Granted 28,136 shares at $97.94 of Merck & Co.⁵
• Jan 22, 2024Granted 26,716 shares at $119.43 of Merck & Co.⁶
• Apr 13, 2023Sold 67,892 shares at $115.07 of Merck & Co.⁷
• Apr 13, 2023Sold 66,163 shares at $115.06 of Merck & Co.⁷
• Apr 13, 2023Exercised options 66,163 shares at $62.07 of Merck & Co.⁷
• Apr 13, 2023Exercised options 67,892 shares at $56.04 of Merck & Co.⁷
• Jan 23, 2023Granted 17,495 shares at $109.88 of Merck & Co.⁸
• Jan 9, 2023Sold 1,702 shares at $114.46 of Merck & Co.⁹
• Jan 9, 2023Sold 38,216 shares at $113.78 of Merck & Co.⁹
• Jan 9, 2023Sold 3,940 shares at $112.78 of Merck & Co.⁹
• Jan 9, 2023Sold 4,538 shares at $111.73 of Merck & Co.⁹
• Jan 9, 2023Sold 35,598 shares at $110.61 of Merck & Co.⁹
• Jan 9, 2023Exercised options 83,994 shares at $53.06 of Merck & Co.⁹
• Oct 28, 2022Sold 100,292 shares at $100.10 of Merck & Co.¹⁰
• Oct 28, 2022Exercised options 51,055 shares of Merck & Co.¹⁰
• Oct 28, 2022Exercised options 34,024 shares of Merck & Co.¹⁰
• Oct 28, 2022Exercised options 15,213 shares of Merck & Co.¹⁰
• Feb 24, 2022Granted 19,836 shares at $73.51 of Merck & Co.¹¹
• Oct 29, 2021Sold 24,619 shares at $87.32 of Merck & Co.¹²
• Oct 29, 2021Exercised options 24,619 shares of Merck & Co.¹²