Zachary Jennifer
SEC CIK 1737231 · EDGAR
BoughtSold
Most active insiders at MRK, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Zachary Jennifer | EVP, GC | — | $25.20M |
| 2 | DeLuca Richard R. | EVP, Pres, Merck Animal Heallth | — | $11.29M |
| 3 | Guindo Chirfi | EVP, Access, Policy, Comms | — | $8.15M |
| 4 | Williams David Michael | EVP, Chief Info, Digital Off | — | $8.13M |
| 5 | Davis Robert M | COB, CEO, Pres, Dir | — | $5.60M |
| 6 | Litchfield Caroline | EVP, CFO | — | $5.02M |
| 7 | Li Dean Y | Pres, Executive VP, MRL | — | $2.99M |
| 8 | Maraldo David R. | EVP, Pres. MMD | — | $2.41M |
| 9 | Oosthuizen Johannes Jacobus | Pres, U.S. Market | — | $1.83M |
| 10 | Smart Dalton E. III | SVP Fin. - Gbl Ctrl | — | $766.0K |
Transactions 23
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-08-13 16:11 | 2026-08-12 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | M - OptEx | $109.78 | +54.9K | 125.8K | +77% | +$6.03M |
| D | 2026-08-13 16:11 | 2026-08-12 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | S - Sale+OE | $133.46 | -80.3K | 45.5K | -64% | -$10.72M |
| D | 2026-06-02 17:20 | 2026-05-29 | RGNX | REGENXBIO Inc. | Zachary Jennifer | Dir | A - Grant | $0.00 | +9,807 | 31.9K | +44% | $0 |
| D | 2026-05-01 17:43 | 2026-04-29 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | M - OptEx | $110.03 | +2,951 | 72.4K | +4% | +$324.7K |
| D | 2026-05-01 17:43 | 2026-04-29 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | F - Tax | $110.03 | -1,454 | 70.9K | -2% | -$160.0K |
| DM | 2026-02-09 | 2026-02-09 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | M - OptEx | $119.15 | +121.6K | 125.7K | +2,940% | +$14.49M |
| DM | 2026-02-09 | 2026-02-09 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | S - Sale+OE | $119.15 | -121.6K | 68.9K | -64% | -$14.49M |
| 2026-01-28 | 2026-01-26 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | A - Grant | $107.40 | +11.6K | 68.9K | +20% | +$1.24M | |
| D | 2025-06-03 | 2025-05-30 | RGNX | REGENXBIO Inc. | Zachary Jennifer | Dir | A - Grant | $0.00 | +7,768 | 22.1K | +54% | $0 |
| 2025-01-29 | 2025-01-27 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | A - Grant | $97.94 | +25.4K | 55.3K | +85% | +$2.49M | |
| D | 2024-06-04 | 2024-05-31 | RGNX | REGENXBIO Inc. | Zachary Jennifer | Dir | A - Grant | $0.00 | +4,790 | 14.3K | +50% | $0 |
| D | 2024-02-02 | 2024-02-02 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | S - Sale+OE | $126.97 | -49.5K | 29.1K | -63% | -$6.28M |
| D | 2024-02-02 | 2024-02-02 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | M - OptEx | $87.10 | +19.4K | 78.6K | +33% | +$1.69M |
| 2024-01-24 | 2024-01-22 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | A - Grant | $119.43 | +23.3K | 59.1K | +65% | +$2.78M | |
| D | 2023-06-06 | 2023-06-02 | RGNX | REGENXBIO Inc. | Zachary Jennifer | Dir | A - Grant | $0.00 | +3,486 | 9,506 | +58% | $0 |
| 2023-05-05 | 2023-05-04 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | S - Sale | $117.59 | -19.1K | 35.1K | -35% | -$2.25M | |
| D | 2023-02-06 | 2023-02-03 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | M - OptEx | $56.04 | +75.4K | 129.4K | +140% | +$4.23M |
| D | 2023-02-06 | 2023-02-03 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | S - Sale+OE | $103.17 | -75.4K | 53.9K | -58% | -$7.78M |
| 2023-01-25 | 2023-01-23 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | A - Grant | $109.88 | +15.6K | 53.9K | +41% | +$1.72M | |
| DM | 2022-11-01 | 2022-10-28 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | M - OptEx | $0.00 | +148.6K | 123.0K | New | $0 |
| DM | 2022-11-01 | 2022-10-28 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | S - Sale+OE | $99.38 | -165.3K | 103.5K | -61% | -$16.42M |
| D | 2022-06-07 | 2022-06-03 | RGNX | REGENXBIO Inc. | Zachary Jennifer | Dir | A - Grant | $0.00 | +6,020 | 6,020 | New | $0 |
| 2022-02-28 | 2022-02-24 | MRK | Merck & Co. | Zachary Jennifer | EVP, GC | A - Grant | $73.51 | +18.4K | 53.4K | +53% | +$1.35M |
Purchase Sale Sale after option exercise All abbreviations