Guindo Chirfi
SEC insider (Form 3/4/5 filer). CIK 0001722753. EVP, Access, Policy & Comms at Merck & Co., Inc. (MRK) and 1 other issuer. 18 reported Form 4/5 transactions since Sep 2024; latest on Aug 13, 2026. Located in RAHWAY, NJ.
Companies Guindo Chirfi has filed insider reports for
- Merck & Co., Inc. (MRK): Officer, EVP, Access, Policy & Comms
- Beam Therapeutics Inc. (BEAM): Director
Guindo Chirfi
CIK: 0001722753
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (18 total)
- Aug 13, 2026MRK
Merck & Co., Inc.
SaleDirect10K shares at avg. $135.00$1.4M - Aug 6, 2026MRK
Merck & Co., Inc.
SaleDirect15K shares at avg. $131.00$2.0M - Jun 3, 2026BEAM
Beam Therapeutics Inc.
AwardDirectStock Option (Right to Buy)
19.7K shares- - May 5, 2026MRK
Merck & Co., Inc.
AwardDirectStock Option (Right to Buy)
19.4K shares- - May 5, 2026MRK
Merck & Co., Inc.
AwardDirectRestricted Stock Unit
6.6K shares- - Apr 29, 2026MRK
Merck & Co., Inc.
ExerciseDirect2K shares at avg. $110.03$216K - Apr 29, 2026MRK
Merck & Co., Inc.
Tax PaymentDirect969 shares at avg. $110.03$107K - Feb 12, 2026MRK
Merck & Co., Inc.
SaleDirect10K shares at avg. $121.46$1.2M - Feb 9, 2026MRK
Merck & Co., Inc.
SaleDirect10K shares at avg. $118.41$1.2M - Feb 5, 2026MRK
Merck & Co., Inc.
SaleDirect20K shares at avg. $121.88$2.4M
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 13, 2026 |  MRK Merck & Co., Inc. | Sale | 10,000 | $135.00 | $1,350,000 | Direct |
| Aug 6, 2026 | MRK Merck & Co., Inc. | Sale | 15,000 | $131.00 | $1,965,000 | Direct |
| Jun 3, 2026 |  BEAM Beam Therapeutics Inc. | Award Stock Option (Right to Buy) | 19,676 | - | - | Direct |
| May 5, 2026 | MRK Merck & Co., Inc. | Award Stock Option (Right to Buy) | 19,402 | - | - | Direct |
| May 5, 2026 | MRK Merck & Co., Inc. | Award Restricted Stock Unit | 6,628 | - | - | Direct |
| Apr 29, 2026 | MRK Merck & Co., Inc. | Exercise | 1,967 | $110.03 | $216,429 | Direct |
| Apr 29, 2026 | MRK Merck & Co., Inc. | Tax Payment | 969 | $110.03 | $106,619 | Direct |
| Feb 12, 2026 | MRK Merck & Co., Inc. | Sale | 10,000 | $121.46 | $1,214,562 | Direct |
| Feb 9, 2026 | MRK Merck & Co., Inc. | Sale | 10,000 | $118.41 | $1,184,101 | Direct |
| Feb 5, 2026 | MRK Merck & Co., Inc. | Sale | 20,000 | $121.88 | $2,437,676 | Direct |
1-10 of 18 transactions