Person

Chirfi Guindo

EVP, Access, Policy & Comms, Merck & Co.

Current S&P 500 boards
0
Current roles
1
Open-market buys
$0
Open-market sales
$9.5M

Current roles

From Section 16 filings (Forms 3, 4 and 5) in the last 13 months.

Past roles

“Last filing” is the latest Form 3/4/5 for that company, an upper bound on the end date.

  • BIIB
    Biogen
    Head of Glob Prod Strat & Com
    Nov 2017 – last filing Feb 2022

Sits alongside

People who currently share a board or management team with this person.

Open-market trades

Purchases and sales reported on Form 4 at S&P 500 companies.

DateCompanyTypeSharesPriceValue
Aug 13, 2026MRKSale10,000$135.00$1.4M
Aug 6, 2026MRKSale15,000$131.00$2.0M
Feb 12, 2026MRKSale10,000$121.46$1.2M
Feb 9, 2026MRKSale10,000$118.41$1.2M
Feb 5, 2026MRKSale20,000$121.88$2.4M
Jun 7, 2021BIIBSale3,087$440.00$1.4M

SEC reporting-owner ID (CIK) 1722753 · all filings on EDGAR