Chirfi Guindo

Insider Reports History

Location
Cambridge, MA
Signature
/s/ Kelly Grez, as attorney-in-fact for Mr. Chirfi Guindo
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Chirfi Guindo:

Company Role Class Num Shares Value Price $ Report Date Ownership
Merck & Co., Inc. Chief Marketing Officer Common Stock 89,234 $7,075,361 $79.29 04 Aug 2025 Direct
Merck & Co., Inc. Chief Marketing Officer Restricted Stock Unit 0 $3,256,690 $88.25 04 Aug 2025 Direct
BIOGEN INC. Head of Glob Prod Strat & Com Restricted Stock Unit 9,668 $2,313,456 $239.29 18 Feb 2022 Direct
BIOGEN INC. Head of Glob Prod Strat & Com Common Stock 7,364 $1,826,272 $248.00 18 Feb 2022 Direct
Beam Therapeutics Inc. Director Stock Option (Right to Buy) 33,662 $953,698 $24.40 04 Jun 2025 Direct
Merck & Co., Inc. Chief Marketing Officer Common Stock-401(k) Plan 56 $4,665 $83.36 04 Aug 2025 By 401(k)
Merck & Co., Inc. Chief Marketing Officer Stock Option (Right to Buy) 26,867 29 Apr 2025 Direct

Insider Reports Filed by Chirfi Guindo

Symbol Company Period Transactions Value $ Form Type Role Filing Time
MRK Merck & Co., Inc. 04 Aug 2025 3 +$1,484,943 4 Chief Marketing Officer 05 Aug 2025, 08:43
BEAM Beam Therapeutics Inc. 04 Jun 2025 1 $0 4 Director 06 Jun 2025, 16:05
MRK Merck & Co., Inc. 29 Apr 2025 2 $0 4 Chief Marketing Officer 01 May 2025, 17:45
MRK Merck & Co., Inc. 27 Jan 2025 1 +$2,757,795 4 Chief Marketing Officer 29 Jan 2025, 18:07
BEAM Beam Therapeutics Inc. 02 Dec 2024 1 $0 4 Director 04 Dec 2024, 07:22
BEAM Beam Therapeutics Inc. 02 Dec 2024 0 $0 3 Director 04 Dec 2024, 07:18
MRK Merck & Co., Inc. 05 Aug 2024 3 +$2,245,133 4 Chief Marketing Officer 06 Aug 2024, 12:20
MRK Merck & Co., Inc. 30 Apr 2024 1 $0 4 Chief Marketing Officer 02 May 2024, 16:22
MRK Merck & Co., Inc. 03 Aug 2023 3 +$1,998,998 4 Chief Marketing Officer 04 Aug 2023, 16:17
MRK Merck & Co., Inc. 02 May 2023 1 $0 4 Chief Marketing Officer 04 May 2023, 17:43
MRK Merck & Co., Inc. 03 Aug 2022 1 $0 4 Chief Marketing Officer 04 Aug 2022, 16:04
MRK Merck & Co., Inc. 01 Jul 2022 0 $0 3/A Chief Marketing Officer 28 Apr 2023, 16:18
BIIB BIOGEN INC. 18 Feb 2022 4 -$184,405 4 Head of Glob Prod Strat & Com 23 Feb 2022, 15:15
BIIB BIOGEN INC. 12 Feb 2022 9 -$502,570 4 Head of Glob Prod Strat & Com 15 Feb 2022, 15:15
BIIB BIOGEN INC. 10 Feb 2022 1 $0 4 Head of Glob Prod Strat & Com 14 Feb 2022, 15:26
BIIB BIOGEN INC. 19 Jan 2022 1 $0 4 Head of Glob Prod Strat & Com 21 Jan 2022, 15:47
BIIB BIOGEN INC. 07 Jun 2021 1 -$1,358,280 4 Head of Glob Prod Strat & Com 09 Jun 2021, 19:04