Jennifer Zachary
CIK 1737231 · View on SEC EDGAR ↗
Insider
First SEC filing: May 7, 2026 · Latest: May 7, 2026
On this page
Insider at
Insider transactions
0 buys (P)
4 sells (S)
Net:
$-25,204,263
+ 52 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
52 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 12, 2026 | MRK | S | 80,315 | $133.46 | $10,718,840 | 45,509 Direct | -63.83% | Disposed | 13.6% (price as of 2026-08-21) |
| Feb. 9, 2026 | MRK | S | 38,835 | $119.15 | $4,627,190 | 68,916 Direct | -36.04% | Disposed | 27.3% (price as of 2026-08-21) |
| Feb. 9, 2026 | MRK | S | 56,792 | $119.15 | $6,766,767 | 68,916 Direct | -45.18% | Disposed | 27.3% (price as of 2026-08-21) |
| Feb. 9, 2026 | MRK | S | 25,946 | $119.15 | $3,091,466 | 68,916 Direct | -27.35% | Disposed | 27.3% (price as of 2026-08-21) |
| Feb. 2, 2024 | MRK | S | 49,499 | $126.97 | $6,284,888 | 29,058 Direct | -63.01% | Disposed | 19.4% (price as of 2026-08-21) |
| May 4, 2023 | MRK | S | 19,141 | $117.59 | $2,250,790 | 35,128 Direct | -35.27% | Disposed | 29.0% (price as of 2026-08-21) |
| Feb. 3, 2023 | MRK | S | 75,436 | $103.17 | $7,782,732 | 53,920 Direct | -58.32% | Disposed | 47.0% (price as of 2026-08-21) |
| Oct. 28, 2022 | MRK | S | 65,487 | $99.85 | $6,538,877 | 38,040 Direct | -63.26% | Disposed | 51.9% (price as of 2026-08-21) |
| Oct. 28, 2022 | MRK | S | 99,768 | $99.07 | $9,884,016 | 103,527 Direct | -49.08% | Disposed | 53.1% (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Aug. 12, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (41,494) | $117.89 | May 1, 2033 | 41,494 | Disposed |
| Aug. 12, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (13,433) | $84.71 | April 28, 2035 | 13,433 | Disposed |
| May 29, 2026 | RGNX | Stock Options (Right to Buy) | Common Stock (46,600) | $7.01 | May 29, 2036 | 46,600 | Acquired |
| May 5, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (35,312) | $113.15 | May 4, 2036 | 35,312 | Acquired |
| May 5, 2026 | MRK | Restricted Stock Unit | Common Stock (12,064) | — | May 5, 2029 | 12,064 | Acquired |
| April 29, 2026 | MRK | Restricted Stock Unit | Common Stock (2,951) | — | April 29, 2028 | 2,951 | Disposed |
| Feb. 9, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (38,835) | $87.10 | May 2, 2032 | 38,835 | Disposed |
| Feb. 9, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (56,792) | $73.73 | May 3, 2031 | 56,792 | Disposed |
| Feb. 9, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (25,946) | $75.36 | April 30, 2030 | 25,946 | Disposed |
| April 29, 2025 | MRK | Stock Option (Right to Buy) | Common Stock (40,301) | $84.71 | April 28, 2035 | 40,301 | Acquired |
| April 29, 2025 | MRK | Restricted Stock Unit | Common Stock (8,854) | — | April 29, 2028 | 8,854 | Acquired |
| April 30, 2024 | MRK | Stock Option (Right to Buy) | Common Stock (35,156) | $129.22 | April 29, 2034 | 35,156 | Acquired |
| Feb. 2, 2024 | MRK | Stock Option (Right to Buy) | Common Stock (19,417) | $87.10 | May 2, 2032 | 19,417 | Disposed |
| May 2, 2023 | MRK | Stock Option (Right to Buy) | Common Stock (41,494) | $117.89 | May 1, 2033 | 41,494 | Acquired |
| Feb. 3, 2023 | MRK | Stock Option (Right to Buy) | Common Stock (75,436) | — | May 3, 2028 | 75,436 | Disposed |
| Oct. 28, 2022 | MRK | Stock Option (Right to Buy) | Common Stock (28,396) | — | May 3, 2031 | 28,396 | Disposed |
| Oct. 28, 2022 | MRK | Stock Option (Right to Buy) | Common Stock (51,884) | — | April 30, 2030 | 51,884 | Disposed |
| Oct. 28, 2022 | MRK | Stock Option (Right to Buy) | Common Stock (68,367) | — | May 2, 2029 | 68,367 | Disposed |
| May 3, 2022 | MRK | Stock Option (Right to Buy) | Common Stock (58,252) | $87.10 | May 2, 2032 | 58,252 | Acquired |
| May 4, 2021 | MRK | Restricted Stock Unit | Common Stock (5,772) | — | May 4, 2021 | 5,772 | Disposed |
| May 4, 2021 | MRK | Stock Option (Right to Buy) | Common Stock (82,653) | $75.99 | May 3, 2031 | 82,653 | Acquired |
| May 4, 2020 | MRK | Restricted Stock Unit | Common Stock (5,772) | — | May 4, 2021 | 5,772 | Disposed |
| May 1, 2020 | MRK | Stock Option (Right to Buy) | Common Stock (75,514) | $77.67 | April 30, 2030 | 75,514 | Acquired |
| May 4, 2019 | MRK | Restricted Stock Unit | Common Stock (5,772) | — | May 4, 2021 | 5,772 | Disposed |
| May 3, 2019 | MRK | Stock Option (right to buy) | Common Stock (66,333) | $80.00 | May 2, 2029 | 66,333 | Acquired |
| May 4, 2018 | MRK | Restricted Stock Unit | Common Stock (17,316) | — | May 4, 2021 | 17,316 | Acquired |
| May 4, 2018 | MRK | Stock Option (right to buy) | Common Stock (73,191) | $57.75 | May 3, 2028 | 73,191 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).