Updated Jul 16, 2026
Chattopadhyay Sanat has filed 2 SEC Form 4 filings across 2 companies in the last 90 days.

| Role | Insider |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-01 | MRK | Merck & Co., Inc. | F — Tax withholding / forfeiture | 1.1K | $110.03 | $124K |
| 2026-05-01 | MRK | Merck & Co., Inc. | M — Option exercise | 2.6K | $110.03 | $286K |
| 2026-01-28 | MRK | Merck & Co., Inc. | A — Grant or award | 13.9K | $107.40 | $1.49M |
Chattopadhyay Sanat is a corporate insider — currently tracked as Insider of ASHLAND INC. (ASH). InsiderAlpha tracks every SEC Form 4 filing in real time.
2 primary Form 4 filings in the last 90 days, covering 2 companies.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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