Richard R. DeLuca, EVP and President of Merck Animal Health, sold Merck & Co., Inc. ($MRK) shares once on the open market in the last year for a total of $4.56 million. His most recent sale occurred on February 6, 2026. Among 11,678 insiders, his sales rank 2,061st by amount, below the average of $8.59 million across about 6.4 transactions. DeLuca made no open market purchases in 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 | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | S | Common Stock | 37685 | $120.92 | 160,173.8340 | 2,514,000,000 | 19.05% | 0.00% |
| Jan. 26, 2026 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | A | Common Stock | 12264 | $107.40 | 197,858.8340 | 2,514,000,000 | 6.61% | 0.00% |
| April 29, 2025 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | A | Restricted Stock Unit | 7555 | $0.00 | 7,555.0000 | 2,541,000,000 | 9999.99% | 0.00% |
| April 29, 2025 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | A | Stock Option (Right to Buy) | 34390 | $0.00 | 34,390.0000 | 2,541,000,000 | 9999.99% | 0.00% |
| Jan. 27, 2025 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | A | Common Stock | 25438 | $97.94 | 178,992.7110 | 2,541,000,000 | 16.57% | 0.00% |
| May 4, 2024 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | M | Restricted Stock Unit | 27126 | $0.00 | 0.0000 | 2,547,000,000 | 100.00% | 0.00% |
| May 4, 2024 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | F | Common Stock | 13360 | $127.51 | 150,359.5590 | 2,547,000,000 | 8.16% | 0.00% |
| May 4, 2024 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | M | Common Stock | 27126 | $127.51 | 163,719.5590 | 2,547,000,000 | 19.86% | 0.00% |
| April 30, 2024 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | A | Restricted Stock Unit | 23216 | $0.00 | 23,216.0000 | 2,547,000,000 | 9999.99% | 0.00% |
| April 30, 2024 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | A | Stock Option (Right to Buy) | 37500 | $0.00 | 37,500.0000 | 2,547,000,000 | 9999.99% | 0.00% |
| Jan. 22, 2024 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | A | Common Stock | 23296 | $119.43 | 135,782.9830 | 2,547,000,000 | 20.71% | 0.00% |
| Nov. 8, 2023 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | S | Common Stock | 43823 | $105.03 | 111,763.5920 | 2,542,000,000 | 28.17% | 0.00% |
| May 2, 2023 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | A | Stock Option (Right to Buy) | 44260 | $0.00 | 44,260.0000 | 2,542,000,000 | 9999.99% | 0.00% |
| May 1, 2023 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | M | Common Stock | 75436 | $56.04 | 229,928.8540 | 2,542,000,000 | 48.83% | 0.00% |
| May 1, 2023 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | S | Common Stock | 75436 | $116.03 | 154,492.8540 | 2,542,000,000 | 32.81% | 0.00% |
| April 28, 2023 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | M | Common Stock | 66163 | $62.07 | 220,655.8540 | 2,542,000,000 | 42.83% | 0.00% |
| May 1, 2023 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | M | Stock Option (Right to Buy) | 75436 | $0.00 | 0.0000 | 2,542,000,000 | 100.00% | 0.00% |
| April 28, 2023 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | M | Stock Option (Right to Buy) | 66163 | $0.00 | 0.0000 | 2,542,000,000 | 100.00% | 0.00% |
| April 28, 2023 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | S | Common Stock | 66163 | $115.00 | 154,492.8540 | 2,542,000,000 | 29.98% | 0.00% |
| Jan. 23, 2023 | Merck & Co., Inc. | $MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | A | Common Stock | 15628 | $109.88 | 153,500.3790 | 2,542,000,000 | 11.34% | 0.00% |