Sanat Chattopadhyay

Insider Reports History

Location
2000 Galloping Hill Road, Kenilworth, NJ
Signature
/s/ Serena S. Kenost, Attorney-In-Fact for Sanat Chattopadhyay
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 Sanat Chattopadhyay:

Stock Role Class Num Shares Value Price $ Report Date Ownership
Merck & Co., Inc. Exe V-P & Pres. MMD Common Stock 74.3K $6.09M $81.91 Apr 29, 2025 By GRAT April 2025
Merck & Co., Inc. Exe V-P & Pres. MMD Common Stock 53.4K $4.38M $81.91 Apr 29, 2025 By GRAT February 2025
Merck & Co., Inc. Exe V-P & Pres. MMD Common Stock 50.6K $4.15M $81.91 Apr 29, 2025 By GRAT May 2024
Merck & Co., Inc. Exe V-P & Pres. MMD Common Stock 7K $573K $81.91 Apr 29, 2025 By GRAT February 2024
ASHLAND INC. Director Restricted Stock Units 4.26K $312K $73.16 Jan 21, 2025 Direct
ASHLAND INC. Director Common Stock Units 1.43K $68.3K $47.91 Sep 30, 2025 Direct
Merck & Co., Inc. Exe V-P & Pres. MMD Stock Option (Right to Buy) 35.5K Apr 29, 2025 Direct
Merck & Co., Inc. Exe V-P & Pres. MMD Restricted Stock Unit 7.79K Apr 29, 2025 Direct

Insider Reports Filed by Sanat Chattopadhyay

Symbol Company Period Transactions Value $ Form Type Date Filed Role
ASH ASHLAND INC. Sep 30, 2025 1 $14.4K 4 Oct 2, 2025 Director
ASH ASHLAND INC. Jun 30, 2025 1 $14.4K 4 Jul 2, 2025 Director
MRK Merck & Co., Inc. Apr 29, 2025 2 $0 4 May 1, 2025 Exe V-P & Pres. MMD
ASH ASHLAND INC. Mar 31, 2025 1 $13.9K 4 Apr 1, 2025 Director
MRK Merck & Co., Inc. Jan 27, 2025 1 $2.76M 4 Jan 29, 2025 Exe V-P & Pres. MMD
ASH ASHLAND INC. Jan 21, 2025 1 $150K 4 Jan 23, 2025 Director
ASH ASHLAND INC. Dec 31, 2024 1 $12.5K 4 Jan 2, 2025 Director
ASH ASHLAND INC. Sep 30, 2024 1 $12.5K 4 Oct 2, 2024 Director
ASH ASHLAND INC. Jun 28, 2024 1 $12.5K 4 Jul 1, 2024 Director
MRK Merck & Co., Inc. Apr 30, 2024 1 $0 4 May 2, 2024 Exe V-P & Pres. MMD
ASH ASHLAND INC. Mar 28, 2024 1 $12.5K 4 Apr 1, 2024 Director
ASH ASHLAND INC. Jan 23, 2024 1 $150K 4 Jan 25, 2024 Director
MRK Merck & Co., Inc. Jan 22, 2024 1 $3.19M 4 Jan 24, 2024 Exe V-P & Pres. MMD
ASH ASHLAND INC. Nov 13, 2023 0 $0 3/A Nov 15, 2023 Director
ASH ASHLAND INC. Nov 13, 2023 1 $20.1K 4 Nov 14, 2023 Director
MRK Merck & Co., Inc. May 2, 2023 1 $0 4 May 4, 2023 Exe V-P & Pres. MMD
MRK Merck & Co., Inc. Apr 13, 2023 6 -$7.51M 4 Apr 14, 2023 Exe V-P & Pres. MMD
MRK Merck & Co., Inc. Jan 23, 2023 1 $1.92M 4 Jan 25, 2023 Exe V-P & Pres. MMD
MRK Merck & Co., Inc. Jan 9, 2023 7 -$4.98M 4 Jan 11, 2023 Exe V-P & Pres. MMD
MRK Merck & Co., Inc. Oct 28, 2022 7 -$10M 4 Nov 1, 2022 Exe V-P & Pres. MMD
MRK Merck & Co., Inc. May 3, 2022 1 $0 4 May 5, 2022 Exe V-P & Pres. MMD
MRK Merck & Co., Inc. Feb 24, 2022 1 $1.46M 4 Feb 28, 2022 Exe V-P & Pres. MMD
MRK Merck & Co., Inc. Oct 29, 2021 3 -$2.15M 4 Nov 2, 2021 Exe V-P & Pres. MMD