Who
Sanat Chattopadhyay
Director
Company insider
Files Form 4 as: Director, Ashland; Exe V-P & Pres. MMD, Merck & Company.
In numbers
- Trades disclosed
- 94
- Buys
- 0
- Sells
- 7
- Bought
- $0
- Sold
- $45.6M
- Companies
- 2
- Companies where not an officer
- 1
- First trade
- 6 May 2016
- Last trade
- 30 Sep 2026
- Last filed
- 1 Oct 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 30 Sep 2026filed 1 Oct 2026 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $14K212 at $67.92 | filing |
| 30 Jun 2026filed 1 Jul 2026 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $14K218 at $65.89 | filing |
| 30 Jun 2026filed 1 Jul 2026 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $14K218 at $65.89 | filing |
| 29 Apr 2026filed 1 May 2026 | MRK Merck & CompanyPharmaceuticals | SEC FORM 4 Code M | $286K2,597 at $110.03 | filing |
| 29 Apr 2026filed 1 May 2026 | MRK Merck & CompanyPharmaceuticals | SEC FORM 4 Code F | $124K1,130 at $110.03 | filing |
| 29 Apr 2026filed 1 May 2026 | MRK Merck & Companyoption or derivative · Pharmaceuticals | SEC FORM 4 Code M | —2,597 at $0.00 | filing |
| 29 Apr 2026filed 1 May 2026 | MRK Merck & Companyoption or derivative · Pharmaceuticals | SEC FORM 4 Code M | —2,597 at $0.00 | filing |
| 29 Apr 2026filed 1 May 2026 | MRK Merck & CompanyPharmaceuticals | SEC FORM 4 Code M | $286K2,597 at $110.03 | filing |
| 29 Apr 2026filed 1 May 2026 | MRK Merck & CompanyPharmaceuticals | SEC FORM 4 Code F | $124K1,130 at $110.03 | filing |
| 31 Mar 2026filed 1 Apr 2026 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $14K258 at $55.61 | filing |
| 31 Mar 2026filed 1 Apr 2026 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $14K258 at $55.61 | filing |
| 26 Jan 2026filed 28 Jan 2026 | MRK Merck & CompanyPharmaceuticals | SEC FORM 4 Code A | $1.5M13,880 at $107.40 | filing |
| 26 Jan 2026filed 28 Jan 2026 | MRK Merck & CompanyPharmaceuticals | SEC FORM 4 Code A | $1.5M13,880 at $107.40 | filing |
| 20 Jan 2026filed 21 Jan 2026 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $150K2,449 at $61.23 | filing |
| 20 Jan 2026filed 21 Jan 2026 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $150K2,449 at $61.23 | filing |
| 31 Dec 2025filed 5 Jan 2026 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $14K245 at $58.67 | filing |
| 31 Dec 2025filed 5 Jan 2026 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $14K245 at $58.67 | filing |
| 30 Sep 2025filed 2 Oct 2025 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $14K300 at $47.91 | filing |
| 30 Jun 2025filed 2 Jul 2025 | ASH Ashlandoption or derivative · Distributors & Wholesale | SEC FORM 4 Code A | $14K286 at $50.28 | filing |
| 29 Apr 2025filed 1 May 2025 | MRK Merck & Companyoption or derivative · Pharmaceuticals | SEC FORM 4 Code A | —7,791 at $0.00 | filing |
News
Merck's 2.4% Dividend Yield: A Reliable Income Stream or a Risky Bet on Recovery?MRK · insidermonkey.com · 19 Oct 2026AbbVie vs. Merck: Which Pharma Stock Offers Better Value?MRK · insidermonkey.com · 16 Oct 2026Merck's Rally Reflects Renewed Confidence, but Has the Market Priced in Too Much?MRK · insidermonkey.com · 16 Oct 2026
0 headlines in the last 90 days name Sanat Chattopadhyay; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.