David Michael Williams, EVP and Chief Information and Digital Officer at Merck & Co. ($MRK), sold about $1.33 million worth of company shares in two open market transactions over the past year. His most recent sale occurred on February 6, 2026. These sales rank 4,288th among 11,678 individual insiders in our database, where the average is $8.6 million across about 6.4 transactions. Williams made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 6, 2026 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | M | Common Stock | 5000 | $77.62 | 35,837.7430 | 2,514,000,000 | 16.21% | 0.00% |
| Feb. 6, 2026 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | M | Stock Option (Right to Buy) | 5000 | $0.00 | 4,600.0000 | 2,514,000,000 | 52.08% | 0.00% |
| Feb. 6, 2026 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | S | Common Stock | 5000 | $121.91 | 30,837.7430 | 2,514,000,000 | 13.95% | 0.00% |
| Jan. 26, 2026 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | A | Common Stock | 6112 | $107.40 | 30,837.7430 | 2,514,000,000 | 24.72% | 0.00% |
| Nov. 3, 2025 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | S | Common Stock | 8614 | $83.59 | 24,578.0310 | 2,514,000,000 | 25.95% | 0.00% |
| Aug. 4, 2025 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | M | Common Stock | 17119 | $79.29 | 41,445.4670 | 2,541,000,000 | 70.37% | 0.00% |
| Aug. 4, 2025 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | F | Common Stock | 8432 | $79.29 | 33,013.4670 | 2,541,000,000 | 20.34% | 0.00% |
| Aug. 4, 2025 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | M | Restricted Stock Unit | 17119 | $0.00 | 0.0000 | 2,541,000,000 | 100.00% | 0.00% |
| April 29, 2025 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | A | Restricted Stock Unit | 4132 | $0.00 | 4,132.0000 | 2,541,000,000 | 9999.99% | 0.00% |
| April 29, 2025 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | A | Stock Option (Right to Buy) | 18807 | $0.00 | 18,807.0000 | 2,541,000,000 | 9999.99% | 0.00% |
| Feb. 13, 2025 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | S | Common Stock | 6000 | $85.34 | 24,123.3160 | 2,541,000,000 | 19.92% | 0.00% |
| Jan. 27, 2025 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | A | Common Stock | 10246 | $97.94 | 30,123.3160 | 2,541,000,000 | 51.55% | 0.00% |
| April 30, 2024 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | A | Stock Option (Right to Buy) | 16406 | $0.00 | 16,406.0000 | 2,547,000,000 | 9999.99% | 0.00% |
| Feb. 7, 2024 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | S | Common Stock | 1451 | $127.57 | 19,811.6670 | 2,547,000,000 | 6.82% | 0.00% |
| Jan. 22, 2024 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | A | Common Stock | 10196 | $119.43 | 21,262.6670 | 2,547,000,000 | 92.13% | 0.00% |
| May 2, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | A | Stock Option (Right to Buy) | 19364 | $0.00 | 19,364.0000 | 2,542,000,000 | 9999.99% | 0.00% |
| May 1, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | M | Restricted Stock Unit | 577 | $0.00 | 0.0000 | 2,542,000,000 | 100.00% | 0.00% |
| May 2, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | M | Stock Option (Right to Buy) | 6035 | $0.00 | 0.0000 | 2,542,000,000 | 100.00% | 0.00% |
| May 2, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | M | Common Stock | 6035 | $56.04 | 18,567.9600 | 2,542,000,000 | 48.15% | 0.00% |
| May 2, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | S | Common Stock | 7509 | $116.82 | 11,058.9600 | 2,542,000,000 | 40.44% | 0.00% |
| May 1, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | F | Common Stock | 198 | $115.47 | 12,532.9600 | 2,542,000,000 | 1.56% | 0.00% |
| May 1, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | M | Common Stock | 577 | $115.47 | 12,730.9600 | 2,542,000,000 | 4.75% | 0.00% |
| Feb. 10, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | F | Common Stock | 413 | $106.72 | 12,091.8920 | 2,542,000,000 | 3.30% | 0.00% |
| Feb. 10, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | M | Common Stock | 1205 | $106.72 | 12,504.8920 | 2,542,000,000 | 10.66% | 0.00% |
| Feb. 10, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | M | Restricted Stock Unit | 1205 | $0.00 | 0.0000 | 2,542,000,000 | 100.00% | 0.00% |
| Jan. 23, 2023 | Merck & Co., Inc. | $MRK | Williams David Michael | EVP,Chief Info&Digital Officer | A | Common Stock | 1745 | $109.88 | 11,007.7570 | 2,542,000,000 | 18.84% | 0.00% |