// insider-profile
Guindo Chirfi
// activity-summary
Recent insider activity is bullish. Over the last 30 days, 2 insiders purchased shares (net $110K) versus 1 sale. Buying was led by Guindo Chirfi.
// track-record
$0
Total purchased
$4.8M
Total sold
3
0B · 3S transactions
Net seller
Overall direction
Most active in
Filing history: Apr 2024 — Apr 2026Based on last 19 filings
Transaction History
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Apr 29, 2026 | Guindo Chirfi | MRK | Option Exercise | 1,967 | $110.03 | $216K |
| Apr 29, 2026 | Guindo Chirfi | MRK | Tax Withholding | 969 | $110.03 | $107K |
| Apr 29, 2026 | Guindo Chirfi | MRK | Option Exercise | 1,967 | $0.00 | $0K |
| Feb 12, 2026 | Guindo Chirfi | MRK | Sale | 10,000 | $121.46 | $1.21M |
| Feb 9, 2026 | Guindo Chirfi | MRK | Sale | 10,000 | $118.41 | $1.18M |
14 more transactions hidden
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