Dean Y Li
CIK 1837016 · View on SEC EDGAR ↗
Insider
First SEC filing: April 15, 2021 · Latest: May 7, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net:
$-2,994,700
+ 73 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
73 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 10, 2026 | MRK | S | 10,235 | $117.52 | $1,202,817 | 92,035 Direct | -10.01% | Disposed | 28.0% (price as of 2026-08-20) |
| Feb. 4, 2026 | MRK | S | 15,087 | $118.77 | $1,791,883 | 102,270 Direct | -12.86% | Disposed | 26.6% (price as of 2026-08-20) |
| Feb. 9, 2024 | MRK | S | 14,702 | $125.50 | $1,845,101 | 46,242 Direct | -24.12% | Disposed | 19.8% (price as of 2026-08-20) |
| Jan. 9, 2024 | RXRX | S 10b5-1 | 962 | $14.03 | $13,497 | 421,000 Indirect | -0.23% | Disposed | -76.1% (price as of 2026-08-20) |
| Jan. 9, 2024 | RXRX | S 10b5-1 | 28,038 | $13.65 | $382,719 | 421,962 Indirect | -6.23% | Disposed | -75.5% (price as of 2026-08-20) |
| Dec. 7, 2021 | RXRX | S 10b5-1 | 1,000 | $21.06 | $21,060 | 1,315,000 Indirect | -0.08% | Disposed | -84.1% (price as of 2026-08-20) |
| Dec. 7, 2021 | RXRX | S 10b5-1 | 14,900 | $20.44 | $304,556 | 1,316,000 Indirect | -1.12% | Disposed | -83.6% (price as of 2026-08-20) |
| Nov. 19, 2021 | RXRX | S 10b5-1 | 13,474 | $20.20 | $272,175 | 1,330,900 Indirect | -1.00% | Disposed | -83.4% (price as of 2026-08-20) |
| Nov. 19, 2021 | RXRX | S 10b5-1 | 13,474 | $20.20 | $272,175 | 578,163 Direct | -2.28% | Disposed | -83.4% (price as of 2026-08-20) |
| Nov. 17, 2021 | RXRX | S 10b5-1 | 5,626 | $20.04 | $112,745 | 1,344,374 Indirect | -0.42% | Disposed | -83.3% (price as of 2026-08-20) |
| Nov. 17, 2021 | RXRX | S 10b5-1 | 5,626 | $20.04 | $112,745 | 591,637 Direct | -0.94% | Disposed | -83.3% (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| May 5, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (58,207) | $113.15 | May 4, 2036 | 58,207 | Acquired |
| May 5, 2026 | MRK | Restricted Stock Unit | Common Stock (19,885) | — | May 5, 2029 | 19,885 | Acquired |
| April 29, 2026 | MRK | Restricted Stock Unit | Common Stock (4,722) | — | April 29, 2028 | 4,722 | Disposed |
| Feb. 4, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (15,087) | — | May 3, 2028 | 15,087 | Disposed |
| April 29, 2025 | MRK | Stock Option (Right to Buy) | Common Stock (64,481) | $84.71 | April 28, 2035 | 64,481 | Acquired |
| April 29, 2025 | MRK | Restricted Stock Unit | Common Stock (14,166) | — | April 29, 2028 | 14,166 | Acquired |
| April 30, 2024 | MRK | Stock Option (Right to Buy) | Common Stock (65,625) | $129.22 | April 29, 2034 | 65,625 | Acquired |
| Feb. 9, 2024 | MRK | Stock Option (Right to Buy) | Common Stock (14,702) | — | May 4, 2027 | 14,702 | Disposed |
| June 16, 2023 | RXRX | Stock Option (Right to Buy) | Class A Common Stock (25,224) | $8.92 | June 16, 2033 | 25,224 | Acquired |
| May 2, 2023 | MRK | Stock Option (Right to Buy) | Common Stock (77,455) | $117.89 | May 1, 2033 | 77,455 | Acquired |
| May 1, 2023 | MRK | Restricted Stock Unit | Common Stock (1,062) | — | May 1, 2023 | 1,062 | Disposed |
| June 14, 2022 | RXRX | Stock Option (right to buy) | Class A Common Stock (36,290) | $6.20 | June 14, 2032 | 36,290 | Acquired |
| May 3, 2022 | MRK | Stock Option (Right to Buy) | Common Stock (75,728) | $87.10 | May 2, 2032 | 75,728 | Acquired |
| May 3, 2022 | MRK | Restricted Stock Unit | Common Stock (773) | — | May 3, 2022 | 773 | Disposed |
| May 1, 2022 | MRK | Restricted Stock Unit | Common Stock (1,061) | — | May 1, 2023 | 1,061 | Disposed |
| May 4, 2021 | MRK | Restricted Stock Unit | Common Stock (694) | — | May 4, 2021 | 694 | Disposed |
| May 4, 2021 | MRK | Stock Option (Right to Buy) | Common Stock (91,837) | $75.99 | May 3, 2031 | 91,837 | Acquired |
| May 3, 2021 | MRK | Restricted Stock Unit | Common Stock (750) | — | May 3, 2022 | 750 | Disposed |
| May 1, 2021 | MRK | Restricted Stock Unit | Common Stock (1,030) | — | May 1, 2023 | 1,030 | Disposed |
| April 20, 2021 | RXRX | Series A-1 Preferred Stock | Common Stock [F1] (32,685) | — | — | 32,685 | Disposed |
| April 20, 2021 | RXRX | Series A Preferred Stock | Common Stock [F1] (22,698) | — | — | 22,698 | Disposed |
| April 20, 2021 | RXRX | Stock Option (Right to Buy) | Class A Common Stock [F1] (27,778) | $18.00 | April 14, 2031 | 27,778 | Acquired |
| April 20, 2021 | RXRX | Stock Option (Right to Buy) | Common Stock [F1] (27,778) | $18.00 | April 14, 2031 | 27,778 | Disposed |
| April 15, 2021 | RXRX | Stock Option (Right to Buy) | Common Stock [F1] (27,778) | $18.00 | April 14, 2031 | 27,778 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 14 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 15, 2021 | RXRX | Common Stock [F1] | 582,501 | Direct |
| April 15, 2021 | RXRX | Common Stock [F1] | 1,366,665 | Indirect |
| April 15, 2021 | RXRX | Common Stock [F1] | 450,000 | Indirect |
| April 15, 2021 | RXRX | Common Stock [F1] | 1,350,000 | Indirect |
| April 15, 2021 | RXRX | Series A Preferred Stock→ Common Stock [F1] (22,698) | 22,698 | Indirect |
| April 15, 2021 | RXRX | Series A-1 Preferred Stock→ Common Stock [F1] (32,685) | 32,685 | Indirect |
| Jan. 7, 2021 | MRK | Common Stock | 7,170 | Direct |
| Jan. 7, 2021 | MRK | Restricted Stock Unit→ Common Stock (694) | 694 | Direct |
| Jan. 7, 2021 | MRK | Restricted Stock Unit→ Common Stock (1,500) | 1,500 | Direct |
| Jan. 7, 2021 | MRK | Restricted Stock Unit→ Common Stock (3,090) | 3,090 | Direct |
| Jan. 7, 2021 | MRK | Stock Option (Right to Buy)→ Common Stock (14,265) | 14,265 | Direct |
| Jan. 7, 2021 | MRK | Stock Option (Right to Buy)→ Common Stock (14,638) | 14,638 | Direct |
| Jan. 7, 2021 | MRK | Stock Option (Right to Buy)→ Common Stock (16,936) | 16,936 | Direct |
| Jan. 7, 2021 | MRK | Stock Option (Right to Buy)→ Common Stock (24,165) | 24,165 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
MRK
EVP| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2023 | $1,368,819 | $0 | — | — | $2,072,000 | $339,249 | $172,146 | $9,779,414 |
| 2022 | $1,095,055 | $0 | — | — | $2,225,000 | $210,204 | $122,233 | $7,766,063 |
| 2021 | $937,104 | $0 | — | — | $1,400,799 | $114,593 | $66,057 | $5,480,919 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.