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Stock Insider Trading Activity of Guindo Chirfi
Guindo Chirfi
Sell
EVP, Access, Policy & Comms
MRK Aug 13, 2026
Avg Cost/Share
$135.00
Shares
10,000
Total Value
$1,350,000.00
Owned After
36,613.127
SEC Form 4
Guindo Chirfi
Sell
Chief Marketing Officer
MRK Feb 12, 2026
Avg Cost/Share
$121.46
Shares
10,000
Total Value
$1,214,562.00
Owned After
36,613.127
SEC Form 4
Guindo Chirfi
Sell
Chief Marketing Officer
MRK Feb 9, 2026
Avg Cost/Share
$118.41
Shares
10,000
Total Value
$1,184,101.00
Owned After
36,613.127
SEC Form 4
Guindo Chirfi
Sell
Chief Marketing Officer
MRK Feb 5, 2026
Avg Cost/Share
$121.88
Shares
20,000
Total Value
$2,437,676.00
Owned After
36,613.127
SEC Form 4
| Insider | Ticker | Relationship | Date | Transaction | Avg Cost | Shares | Total Value | Owned After | SEC Forms |
|---|---|---|---|---|---|---|---|---|---|
| Guindo Chirfi | MRK | EVP, Access, Policy & Comms | Aug 13, 2026 | Sell | $135.00 | 10,000 | $1,350,000.00 | 36,613.127 | |
| Guindo Chirfi | MRK | Chief Marketing Officer | Feb 12, 2026 | Sell | $121.46 | 10,000 | $1,214,562.00 | 36,613.127 | |
| Guindo Chirfi | MRK | Chief Marketing Officer | Feb 9, 2026 | Sell | $118.41 | 10,000 | $1,184,101.00 | 36,613.127 | |
| Guindo Chirfi | MRK | Chief Marketing Officer | Feb 5, 2026 | Sell | $121.88 | 20,000 | $2,437,676.00 | 36,613.127 |