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  • Insider Ownership

Insider Trading & Ownership of Chirfi Guindo

Location
Cambridge, MA
Summary
The estimated net worth of Chirfi Guindo is at least $15,430,142 dollars as of 05 Aug 2025. Chirfi Guindo is the Chief Marketing Officer of Merck & Co., Inc. and owns shares of Merck & Co., Inc. (MRK) stock worth about $10,336,716. Chirfi Guindo is the Head of Glob Prod Strat & Com of BIOGEN INC. and owns shares of BIOGEN INC. (BIIB) stock worth about $4,139,728. Chirfi Guindo is the Director of Beam Therapeutics Inc. and owns shares of Beam Therapeutics Inc. (BEAM) stock worth about $953,698.
Signature
/s/ Kelly Grez, as attorney-in-fact for Mr. Chirfi Guindo
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Ownership of Chirfi Guindo

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
MRK Merck & Co., Inc. Chief Marketing Officer $10,336,716 04 Aug 2025
BIIB BIOGEN INC. Head of Glob Prod Strat & Com $4,139,728 18 Feb 2022
BEAM Beam Therapeutics Inc. Director $953,698 04 Jun 2025

Insider Transactions Reported by Chirfi Guindo:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.