Dean Y. Li serves as Executive at Merck & Co., Inc., where they oversee executive responsibilities. Since joining the company, Dean Y. Li has executed 59 insider transactions totaling $4.5M, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 10, 2026 involved selling 10,235 shares valued at $1.2M.
Dean Y. Li currently holds 92,035.05 shares of Merck & Co., Inc. (MRK), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Dean Y. Li has been a net seller of MRK stock. They have purchased $0 and sold $4.5M worth of shares.
Dean Y. Li's most recent insider trade was on Feb 10, 2026, when they sold 10,235 shares at $117.52 per share.
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| $107.40 |
| Discretionary |
| Jan 2, 2026 | RXRX | $0 | Award | 2,381 | $N/A | Discretionary |
| Oct 1, 2025 | RXRX | $0 | Award | 1,961 | $N/A | Discretionary |
| Jul 1, 2024 | RXRX | $0 | Award | 1,592 | $N/A | Discretionary |
| Jun 3, 2024 | RXRX | $0 | Award | 13,097 | $N/A | Discretionary |
| Apr 1, 2024 | RXRX | $0 | Award | 1,267 | $N/A | Discretionary |
| Feb 9, 2024 | MRK | $1.8M | Sale | 14,702 | $125.50 | Discretionary |
| Feb 9, 2024 | MRK | $912.6K | Option Exercise | 14,702 | $62.07 | Discretionary |
| Jan 22, 2024 | MRK | $3.1M | Award | 25,760 | $119.43 | Discretionary |
| Jan 9, 2024 | RXRX | $382.7K | Sale | 28,038 | $13.65 | Planned |
| Jan 9, 2024 | RXRX | $13.5K | Sale | 962 | $14.03 | Planned |
| Jan 2, 2024 | RXRX | $0 | Award | 1,203 | $N/A | Discretionary |
| Oct 2, 2023 | RXRX | $0 | Award | 1,659 | $N/A | Discretionary |
| Jul 3, 2023 | RXRX | $0 | Award | 1,609 | $N/A | Discretionary |
| Jun 16, 2023 | RXRX | $0 | Award | 12,612 | $N/A | Discretionary |
| May 1, 2023 | MRK | $122.6K | Option Exercise | 1,062 | $115.47 | Discretionary |
| May 1, 2023 | MRK | $60.5K | Payment | 524 | $115.47 | Discretionary |
| Apr 21, 2023 | RXRX | $0 | Gift | 627,705 | $N/A | Discretionary |
| Apr 3, 2023 | RXRX | $0 | Award | 1,724 | $N/A | Discretionary |
| Jan 23, 2023 | MRK | $359.9K | Award | 3,275 | $109.88 | Discretionary |
| Jan 3, 2023 | RXRX | $0 | Award | 1,573 | $N/A | Discretionary |
| Oct 3, 2022 | RXRX | $0 | Award | 1,092 | $N/A | Discretionary |
| Jul 1, 2022 | RXRX | $0 | Award | 1,409 | $N/A | Discretionary |
| Jun 14, 2022 | RXRX | $0 | Award | 18,145 | $N/A | Discretionary |
| May 3, 2022 | MRK | $67.8K | Option Exercise | 773 | $87.65 | Discretionary |
| May 3, 2022 | MRK | $33.4K | Payment | 381 | $87.65 | Discretionary |
| May 1, 2022 | MRK | $94.1K | Option Exercise | 1,061 | $88.69 | Discretionary |
| May 1, 2022 | MRK | $46.4K | Payment | 523 | $88.69 | Discretionary |
| Apr 1, 2022 | RXRX | $0 | Award | 1,544 | $N/A | Discretionary |