Chattopadhyay Sanat

Director · Officer · ASH, MRK

As of 2026-09-16, Chattopadhyay Sanat has 16 Form 4 transactions on record across 2 companies — 9 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $906KIndirect: $0$906Kas of 2026-09-16
  • Direct $906K
  • Indirect $0
MRKdirect5,194 sh$753K
ASHdirect2,182 sh$154K

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

ASH · 9 trades
2026-06-30: Award / grant, 218 sh ($14K)2026-03-31: Award / grant, 258 sh ($14K)2026-01-20: Award / grant, 2,449 sh ($150K)2025-12-31: Award / grant, 245 sh ($14K)2025-09-30: Award / grant, 300 sh ($14K)2025-06-30: Award / grant, 286 sh ($14K)2025-03-31: Award / grant, 235 sh ($14K)2025-01-21: Award / grant, 2,050 sh ($150K)2024-12-31: Award / grant, 175 sh ($13K)
MRK · 7 trades
2026-04-29: Option exercise, 2,597 sh ($286K)2026-04-29: Withheld for tax, 1,130 sh ($124K)2026-04-29: Option exercise, 2,597 sh ($0)2026-01-26: Award / grant, 13,880 sh ($1.5M)2025-04-29: Award / grant, 35,465 sh ($0)2025-04-29: Award / grant, 7,791 sh ($0)2025-01-27: Award / grant, 28,136 sh ($2.8M)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
16 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-30ASHAward / grant2182,182Form 4
2026-04-29MRKOption exercise2,59716,477Form 4
2026-04-29MRKWithheld for tax1,13015,347Form 4
2026-04-29MRKOption exercise2,5975,194Form 4
2026-03-31ASHAward / grant2581,952Form 4
2026-01-26MRKAward / grant13,88013,880Form 4
2026-01-20ASHAward / grant2,4496,711Form 4
2025-12-31ASHAward / grant2451,679Form 4
2025-09-30ASHAward / grant3001,425Form 4
2025-06-30ASHAward / grant2861,116Form 4
2025-04-29MRKAward / grant35,46535,465Form 4
2025-04-29MRKAward / grant7,7917,791Form 4
2025-03-31ASHAward / grant235823Form 4
2025-01-27MRKAward / grant28,13678,758Form 4
2025-01-21ASHAward / grant2,0504,262Form 4
2024-12-31ASHAward / grant175583Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.