Rita A. Karachun

Companies

• Coherus BioSciences (United States)Board member Jun 5, 2024 to now¹
• Merck & Co.Sr. VP Fince-Global Controller Mar 5, 2014 to May 5, 2023²
• Organon & Co.Board member May 7, 2021 to May 7, 2021³

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. MRK45,710 shares⁴$6.7M at $145.87May 4, 2023
• CBCoherus BioSciences (United States) CHRS30,000 shares⁵$29.7K at $0.99Jun 5, 2026

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

Recent filings

• Jun 5, 2026Granted 30,000 shares of Coherus BioSciences (United States)⁵
• May 4, 2023Sold 15,875 shares at $117.53 of Merck & Co.⁴
• May 4, 2023Exercised options 15,875 shares at $62.07 of Merck & Co.⁴
• May 4, 2023Shares withheld for tax 326 shares at $118.22 of Merck & Co.⁴
• May 4, 2023Exercised options 949 shares at $118.22 of Merck & Co.⁴
• May 3, 2023Shares withheld for tax 276 shares at $117.89 of Merck & Co.⁴
• May 3, 2023Exercised options 803 shares at $117.89 of Merck & Co.⁴
• May 1, 2023Shares withheld for tax 319 shares at $115.47 of Merck & Co.⁶
• May 1, 2023Exercised options 930 shares at $115.47 of Merck & Co.⁶
• Jan 23, 2023Granted 2,846 shares at $109.88 of Merck & Co.⁷
• Oct 28, 2022Sold 31,997 shares at $100.34 of Merck & Co.⁸
• Oct 28, 2022Exercised options 15,000 shares of Merck & Co.⁸
• Oct 28, 2022Exercised options 16,997 shares of Merck & Co.⁸
• May 4, 2022Shares withheld for tax 326 shares at $87.10 of Merck & Co.⁹
• May 4, 2022Exercised options 949 shares at $87.10 of Merck & Co.⁹
• May 3, 2022Shares withheld for tax 309 shares at $87.65 of Merck & Co.¹⁰
• May 3, 2022Exercised options 902 shares at $87.65 of Merck & Co.¹⁰
• May 1, 2022Shares withheld for tax 318 shares at $88.69 of Merck & Co.¹¹
• May 1, 2022Exercised options 928 shares at $88.69 of Merck & Co.¹¹
• Feb 24, 2022Granted 3,478 shares at $73.51 of Merck & Co.¹²
• Nov 3, 2021Sold 25,000 shares at $88.45 of Merck & Co.¹³
• Nov 3, 2021Exercised options 25,000 shares of Merck & Co.¹³