Richard R. DeLuca is President & VP at Merck & Co., Inc. (MRK). They have made 13 open-market trades across 1 company since 2018, most recently 2026-08-12.
CIK 0001421339
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 13 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MRK | 110,167 | $16.1M |
| WYE | 5,157 | — |
| Total | $16.1M |
Shares reported on the most recent Form 4, priced at the 2026-08-12 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MRK | SELL | 2026-08-10 | 2026-08-12 | $131.12 | $5.9M | +13.0% | +7.9% | — |
| MRK | SELL | 2026-08-06 | 2026-08-10 | $130.38 | $789K | +14.8% | +13.5% | — |
| MRK | SELL | 2026-02-06 | 2026-02-06 | $120.92 | $4.6M | +0.4% | -3.5% | -7.5% |
| MRK | SELL | 2023-11-08 | 2023-11-09 | $105.03 | $9.2M | -0.6% | +1.5% | +23.9% |
| MRK | SELL | 2023-04-28 | 2023-05-02 | $115.72 | $25.1M | -1.0% | -6.3% | -9.9% |
| MRK | SELL | 2022-10-28 | 2022-11-01 | $100.26 | $33.0M | -1.7% | +10.2% | +6.5% |
| MRK | SELL | 2021-11-04 | 2021-11-05 | $90.40 | $5.4M | +2.7% | -8.7% | -1.7% |
| MRK | SELL | 2021-10-29 | 2021-11-02 | $87.56 | $23.7M | -5.4% | -16.8% | -8.2% |
| MRK | SELL | 2019-08-09 | 2019-08-12 | $85.09 | $547K | +1.5% | -3.0% | -2.6% |
| MRK | SELL | 2019-08-08 | 2019-08-12 | $85.02 | $6.5M | +1.5% | -3.0% | -2.6% |
| MRK | SELL | 2019-08-08 | 2019-08-12 | $85.01 | $2.7M | +1.5% | -3.0% | -2.6% |
| MRK | SELL | 2019-05-03 | 2019-05-07 | $80.00 | $2.8M | +0.5% | +4.0% | +6.1% |
| MRK | SELL | 2018-10-30 | 2018-11-01 | $72.00 | $1.8M | +1.4% | +7.7% | -0.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.