Li Dean Y

Director · Officer · RXRX, MRK

As of 2026-09-16, Li Dean Y has 23 Form 4 transactions on record across 2 companies — 15 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: $13.1MIndirect: $0$13.1Mas of 2026-09-16
  • Direct $13.1M
  • Indirect $0
MRKdirect58,207 sh$8.4M
RXRXdirect1,473,329 sh$4.7M

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

MRK · 13 trades
2026-05-05: Award / grant, 19,885 sh ($0)2026-05-05: Award / grant, 58,207 sh ($0)2026-04-29: Option exercise, 4,722 sh ($520K)2026-04-29: Withheld for tax, 2,326 sh ($256K)2026-04-29: Option exercise, 4,722 sh ($0)2026-02-10: Sale, 10,235 sh ($1.2M)2026-02-04: Sale, 15,087 sh ($1.8M)2026-02-04: Option exercise, 15,087 sh ($845K)2026-02-04: Option exercise, 15,087 sh ($0)2026-01-26: Award / grant, 20,469 sh ($2.2M)2025-04-29: Award / grant, 14,166 sh ($0)2025-04-29: Award / grant, 64,481 sh ($0)2025-01-27: Award / grant, 32,621 sh ($3.2M)
RXRX · 10 trades
2026-07-01: Award / grant, 3,747 sh ($0)2026-06-17: Award / grant, 88,424 sh ($0)2026-04-01: Award / grant, 3,268 sh ($0)2026-01-02: Award / grant, 2,381 sh ($0)2025-10-01: Award / grant, 1,961 sh ($0)2025-07-01: Award / grant, 1,949 sh ($0)2025-06-18: Award / grant, 22,016 sh ($0)2025-06-18: Award / grant, 44,031 sh ($0)2025-04-01: Award / grant, 2,268 sh ($0)2025-01-02: Award / grant, 1,647 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-02-10MRKSale10,235 @ $117.52$1.2M−10.0% of holding92,035Form 4
2026-02-04MRKSale15,087 @ $118.77$1.8M−12.9% of holding102,270Form 4
21 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-07-01RXRXAward / grant3,7471,473,329Form 4
2026-06-17RXRXAward / grant88,4241,469,582Form 4
2026-05-05MRKAward / grant19,88519,885Form 4
2026-05-05MRKAward / grant58,20758,207Form 4
2026-04-29MRKOption exercise4,72296,757Form 4
2026-04-29MRKWithheld for tax2,32694,431Form 4
2026-04-29MRKOption exercise4,7229,444Form 4
2026-04-01RXRXAward / grant3,2681,244,177Form 4
2026-02-04MRKOption exercise15,087117,357Form 4
2026-02-04MRKOption exercise15,0870Form 4
2026-01-26MRKAward / grant20,469102,270Form 4
2026-01-02RXRXAward / grant2,3811,240,909Form 4
2025-10-01RXRXAward / grant1,9611,238,528Form 4
2025-07-01RXRXAward / grant1,9491,236,567Form 4
2025-06-18RXRXAward / grant22,0161,234,618Form 4
2025-06-18RXRXAward / grant44,03144,031Form 4
2025-04-29MRKAward / grant14,16614,166Form 4
2025-04-29MRKAward / grant64,48164,481Form 4
2025-04-01RXRXAward / grant2,26879,618Form 4
2025-01-27MRKAward / grant32,62179,592Form 4
2025-01-02RXRXAward / grant1,64777,350Form 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.