Konstantin Konstantinov

Companies

• RepligenBoard member May 31, 2022 to now¹
• Codiak BioSciences, Inc.Officer Oct 13, 2020 to Mar 30, 2023²

Holdings

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

Shares held

• RRepligen RGEN3,889 shares³$684.7K at $176.05May 14, 2026
• CBCodiak BioSciences, Inc.0 shares⁴Mar 28, 2023

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

Recent filings

• May 14, 2026Granted 995 shares of Repligen³
• May 15, 2025Granted 973 shares of Repligen⁵
• May 16, 2024Granted 701 shares of Repligen⁶
• May 18, 2023Granted 686 shares of Repligen⁷
• Mar 28, 2023Sold 1,932 shares at $0.20 of Codiak BioSciences, Inc.⁴
• Mar 28, 2023Sold 7,432 shares at $0.20 of Codiak BioSciences, Inc.⁴
• Feb 17, 2023Sold 1,391 shares at $0.59 of Codiak BioSciences, Inc.⁸
• Feb 16, 2023Exercised options 4,200 shares of Codiak BioSciences, Inc.⁸
• Jan 20, 2023Sold 1,069 shares at $0.58 of Codiak BioSciences, Inc.⁹
• Jan 19, 2023Exercised options 2,800 shares of Codiak BioSciences, Inc.⁹
• Aug 17, 2022Sold 1,308 shares at $2.21 of Codiak BioSciences, Inc.⁸
• Aug 16, 2022Exercised options 4,200 shares of Codiak BioSciences, Inc.⁸
• May 26, 2022Granted 534 shares of Repligen¹⁰