Guindo Chirfi

CIK 0001722753

Head of Glob Prod Strat & ComDirector

Filings

Latest May 7, 2026

Issuers covered

Showing

19 of 19

Page 1

Track record

3 of 3 open-market trades scored (100% price coverage). Returns are signed: a +10% move on a sale shows as -10% (insider was wrong).

Horizon	Trades	Win rate	Avg	Median	Best	Worst
30 days	3	100%	+2.2%	+2.2%	+3.2%	+1.2%
90 days	3	100%	+5.1%	+5.2%	+5.4%	+4.9%
180 days	-	-	-	-	-	-
365 days	-	-	-	-	-	-

Companies where Guindo Chirfi has filed

Ticker	Issuer	Filings	Last filed
MRK	Merck & Co., Inc.	13	May 7, 2026
BIIB	Biogen Inc.	4	Feb 23, 2022
BEAM	Beam Therapeutics Inc.	2	Jun 6, 2025

19 Form 4 / 4-A filings, newest first

Filed	Issuer	Top transaction	Shares	Price	Value
May 7, 2026	MRKMerck & Co., Inc.	Holdings only	-	-	-
May 1, 2026	MRKMerck & Co., Inc.	MExercise	1,967	$110.03	$216,429
Feb 12, 2026	MRKMerck & Co., Inc.	SSale	10,000	$121.4562	$1,214,562
Feb 9, 2026	MRKMerck & Co., Inc.	SSale	10,000	$118.4101	$1,184,101
Feb 6, 2026	MRKMerck & Co., Inc.	SSale	20,000	$121.8838	$2,437,676
Jan 28, 2026	MRKMerck & Co., Inc.	AGrant	9,865	$107.40	$1,059,501
Aug 5, 2025	MRKMerck & Co., Inc.	MExercise	36,903	$79.29	$2,926,039
Jun 6, 2025	BEAMBeam Therapeutics Inc.	Holdings only	-	-	-
May 1, 2025	MRKMerck & Co., Inc.	Holdings only	-	-	-
Jan 29, 2025	MRKMerck & Co., Inc.	AGrant	28,158	$97.94	$2,757,795
Dec 4, 2024	BEAMBeam Therapeutics Inc.	Holdings only	-	-	-
Aug 6, 2024	MRKMerck & Co., Inc.	MExercise	36,901	$115.20	$4,250,995
May 2, 2024	MRKMerck & Co., Inc.	Holdings only	-	-	-
Aug 4, 2023	MRKMerck & Co., Inc.	MExercise	36,901	$105.70	$3,900,436
May 4, 2023	MRKMerck & Co., Inc.	Holdings only	-	-	-
Feb 23, 2022	BIIBBiogen Inc.	FTax	879	$209.79	$184,405
Feb 15, 2022	BIIBBiogen Inc.	FTax	1,189	$214.59	$255,148
Feb 14, 2022	BIIBBiogen Inc.	Holdings only	-	-	-
Jan 21, 2022	BIIBBiogen Inc.	AGrant	3,088	$0.00	$0

Showing 1-19 of 19

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