Chirfi Guindo, Chief Marketing Officer at Merck & Co., Inc. (MRK), sold 10,000 shares at $121.46 ($1.2M) on 2026-02-12, disclosed to the SEC on 2026-02-12.
Open-market sale of $1.2M MRK by Chief Marketing Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| MRK | SELL | 2026-02-09 | $1.2M | — | Filing → |
| MRK | SELL | 2026-02-06 | $2.4M | — | Filing → |
| BIIB | SELL | 2021-06-09 | $1.4M | — | Filing → |