David R. Maraldo
CIK 2126478 · View on SEC EDGAR ↗
Insider
First SEC filing: May 5, 2026 · Latest: May 7, 2026
On this page
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net:
$-2,407,836
+ 11 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
11 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 5, 2026 | MRK | S | 6,311 | $128.72 | $812,352 | 18,212 Direct | -25.74% | Disposed | 16.8% (price as of 2026-08-20) |
| Aug. 5, 2026 | MRK | S | 9,709 | $128.72 | $1,249,742 | 18,212 Direct | -34.77% | Disposed | 16.8% (price as of 2026-08-20) |
| Aug. 5, 2026 | MRK | S | 2,686 | $128.72 | $345,742 | 18,212 Direct | -12.85% | Disposed | 16.8% (price as of 2026-08-20) |
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. 5, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (6,311) | $73.73 | May 3, 2031 | 6,311 | Disposed |
| Aug. 5, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (9,709) | $87.10 | May 2, 2032 | 9,709 | Disposed |
| Aug. 5, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (2,686) | $84.71 | April 28, 2035 | 2,686 | Disposed |
| May 5, 2026 | MRK | Stock Option (Right to Buy) | Common Stock (21,731) | $113.15 | May 4, 2036 | 21,731 | Acquired |
| May 5, 2026 | MRK | Restricted Stock Unit | Common Stock (7,424) | — | May 5, 2029 | 7,424 | Acquired |
| May 2, 2026 | MRK | Restricted Stock Unit | Common Stock (552) | — | May 2, 2026 | 552 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 20 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| May 5, 2026 | MRK | Common Stock | 17,819 | Direct |
| May 5, 2026 | MRK | Common Stock - 401(k) Plan | 8,359 | Indirect |
| May 5, 2026 | MRK | Restricted Stock Unit→ Common Stock (552) | 552 | Direct |
| May 5, 2026 | MRK | Restricted Stock Unit→ Common Stock (581) | 581 | Direct |
| May 5, 2026 | MRK | Restricted Stock Unit→ Common Stock (2,361) | 2,361 | Direct |
| May 5, 2026 | MRK | Stock Option (Right to Buy)→ Common Stock (9,465) | 9,465 | Direct |
| May 5, 2026 | MRK | Stock Option (Right to Buy)→ Common Stock (9,709) | 9,709 | Direct |
| May 5, 2026 | MRK | Stock Option (Right to Buy)→ Common Stock (8,990) | 8,990 | Direct |
| May 5, 2026 | MRK | Stock Option (Right to Buy)→ Common Stock (8,789) | 8,789 | Direct |
| May 5, 2026 | MRK | Stock Option (Right to Buy)→ Common Stock (8,060) | 8,060 | Direct |
| May 4, 2026 | MRK | Common Stock | 17,819 | Direct |
| May 4, 2026 | MRK | Common Stock - 401(k) Plan | 8,359 | Indirect |
| May 4, 2026 | MRK | Restricted Stock Unit→ Common Stock (552) | 552 | Direct |
| May 4, 2026 | MRK | Restricted Stock Unit→ Common Stock (581) | 581 | Direct |
| May 4, 2026 | MRK | Restricted Stock Unit→ Common Stock (2,361) | 2,361 | Direct |
| May 4, 2026 | MRK | Stock Option (Right to Buy)→ Common Stock (9,465) | 9,465 | Direct |
| May 4, 2026 | MRK | Stock Option (Right to Buy)→ Common Stock (9,709) | 9,709 | Direct |
| May 4, 2026 | MRK | Stock Option (Right to Buy)→ Common Stock (8,990) | 8,990 | Direct |
| May 4, 2026 | MRK | Stock Option (Right to Buy)→ Common Stock (8,789) | 8,789 | Direct |
| May 4, 2026 | MRK | Stock Option (Right to Buy)→ Common Stock (8,060) | 8,060 | Direct |