Guindo Chirfi
- SEC CIK
- 0001722753
In the past year, 5 open-market sale filings worth $8.15M and no purchases.
Current role at each company
- MRK Merck & Co., Inc.EVP, Access, Policy & Commsas of Aug 13, 2026
- BEAM Beam Therapeutics Inc.Directoras of Jun 5, 2026
- BIIB Biogen Inc.Head of Glob Prod Strat & Comas of Feb 23, 2022
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $8.15M
- 5 filings
- Net
- −$8.15M
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Guindo Chirfi as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
MRK Merck & Co., Inc.
EVP, Access, Policy & Comms5 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 13, 2026 (view filing)5:02 PM ET | Aug 13 | Same day | Guindo ChirfiEVP, Access, Policy & Comms | SSale | −10.0K | $135.00 | −$1.35M | −21.5%36.6K after | |
| Aug 7, 2026 (view filing)4:17 PM ET | Aug 6 | 1 day | Guindo ChirfiEVP, Access, Policy & Comms | SSale | −15.0K | $131.00 | −$1.97M | −24.3%46.6K after | |
| Feb 12, 2026 (view filing) | Feb 12 | Same day | Guindo ChirfiChief Marketing Officer | SSale | −10.0K | $121.46 | −$1.21M | −14.2%60.6K after | |
| Feb 9, 2026 (view filing) | Feb 9 | Same day | Guindo ChirfiChief Marketing Officer | SSale | −10.0K | $118.41 | −$1.18M | −12.4%70.6K after | |
| Feb 6, 2026 (view filing) | Feb 5 | 1 day | Guindo ChirfiChief Marketing Officer | SSale | −20.0K | $121.88 | −$2.44M | −19.9%80.6K after |