SEC CIK 1722753
Guindo Chirfi
Reported ownership across 2 companies, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| MRKview stock → | 36,613.127 | 2026-08-13 |
| BIIBview stock → | 7,364 | 2022-02-18 |
Position History — MRK
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — MRK
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-08-13 | Open-market sale | 10,000 | $135.00 | 36,613.127 |
| 2026-08-06 | Open-market sale | 15,000 | $131.00 | 46,613.127 |
| 2026-05-05 | Grant / award (derivative) | 19,402 | $0.00 | 19,402 |
| 2026-05-05 | Grant / award (derivative) | 6,628 | $0.00 | 6,628 |
| 2026-04-29 | Option exercise (derivative) | 1,967 | $0.00 | 3,935 |
| 2026-04-29 | Tax withholding | 969 | $110.03 | 61,613.127 |
| 2026-04-29 | Option exercise | 1,967 | $110.03 | 62,582.127 |
| 2026-02-12 | Open-market sale | 10,000 | $121.46 | 60,615.13 |
| 2026-02-09 | Open-market sale | 10,000 | $118.41 | 70,615.13 |
| 2026-02-05 | Open-market sale | 20,000 | $121.88 | 80,615.13 |
| 2026-01-26 | Grant / award | 9,865 | $107.40 | 100,615.13 |
| 2025-08-04 | Option exercise (derivative) | 36,903 | $0.00 | 0 |
| 2025-08-04 | Tax withholding | 18,175 | $79.29 | 89,233.97 |
| 2025-08-04 | Option exercise | 36,903 | $79.29 | 107,408.97 |
| 2025-04-29 | Grant / award (derivative) | 26,867 | $0.00 | 26,867 |
| 2025-04-29 | Grant / award (derivative) | 5,902 | $0.00 | 5,902 |
| 2025-01-27 | Grant / award | 28,158 | $97.94 | 69,143.92 |
| 2024-08-05 | Option exercise (derivative) | 36,901 | $0.00 | 36,903 |
| 2024-08-05 | Tax withholding | 17,412 | $115.20 | 40,369.59 |
| 2024-08-05 | Option exercise | 36,901 | $115.20 | 57,781.59 |
| 2024-04-30 | Grant / award (derivative) | 29,297 | $0.00 | 29,297 |
| 2023-08-03 | Option exercise (derivative) | 36,901 | $0.00 | 73,804 |
| 2023-08-03 | Tax withholding | 17,989 | $105.70 | 20,352.68 |
| 2023-08-03 | Option exercise | 36,901 | $105.70 | 38,341.68 |
| 2023-05-02 | Grant / award (derivative) | 34,578 | $0.00 | 34,578 |
| 2022-08-03 | Grant / award (derivative) | 110,705 | $0.00 | 110,705 |
| 2022-07-01 | — | — | — | 2.7 |
| 2022-07-01 | — | — | — | 50.79 |
| 2022-07-01 | — | — | — | 50.79 |
| 2022-07-01 | — | — | — | 1,399.06 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.