Insider · CIK 0001820958
David Michael Williams
Files at MRK (Merck & Co., Inc.). First filing Nov 4, 2025, latest Aug 7, 2026.
In brief
David Michael Williams files SEC Form 4 as officer at MRK (Merck & Co., Inc.). Since Nov 4, 2025, David Michael Williams has reported 0 open-market buys worth $0 and 3 open-market sells worth $8.1M, the latest filed on Aug 7, 2026.
A track record needs three past buys with six months of prices behind them; David Michael Williams has 0, so none is measured yet.
The newest scored trade: sold $6.8M of MRK on Aug 5, 2026, filed Aug 7, 2026, scored 60 (notable). In the last 12 months: 0 buys worth $0 and 3 sells worth $8.1M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MRK: Merck & Co., Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 60Notable | Merck & Co., Inc. | $6.8M 52,847 shares | -146% | +69% from low-3% from high | |
| 40Moderate | Merck & Co., Inc. | $610k 5,000 shares | -14% | +71% from low0% from high | |
| 54Moderate | Merck & Co., Inc. | $720k 8,614 shares | -26% | +15% from low-18% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 5, 2026 | MRK MERCK & CO., INC. | 52,847 0.00% of outstanding | $6.8M | Aug 5, 2026 | none |
| Feb 6, 2026 | MRK MERCK & CO., INC. | 5,000 0.00% of outstanding | $610k | Feb 6, 2026 | none |
| Nov 3, 2025 | MRK MERCK & CO. INC. | 8,614 0.00% of outstanding | $720k | Nov 3, 2025 | none |
| Feb 13, 2025 | MRK MERCK & CO. INC. | 6,000 0.00% of outstanding | $512k | Feb 13, 2025 | none |
| Feb 7, 2024 | MRK MERCK & CO. INC. | 1,451 0.00% of outstanding | $185k | Feb 7, 2024 | none |
Transactions
Every row this insider has filed, 24 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 5, 2026 | MRK Merck & Co., Inc. | MOption exercise Common Stock | +4,600 | $77.62 | $357k | 36,316 | Aug 7, 2026 |
| Aug 5, 2026 | MRK Merck & Co., Inc. | SOpen-market sale Common Stock | -4,600 | $128.77 | $592k | 31,716 | Aug 7, 2026 |
| Aug 5, 2026 | MRK Merck & Co., Inc. | MOption exercise Common Stock | +13,542 | $75.36 | $1.0M | 45,258 | Aug 7, 2026 |
| Aug 5, 2026 | MRK Merck & Co., Inc. | SOpen-market sale Common Stock | -13,542 | $128.77 | $1.7M | 31,716 | Aug 7, 2026 |
| Aug 5, 2026 | MRK Merck & Co., Inc. | MOption exercise Common Stock | +34,705 | $73.73 | $2.6M | 66,421 | Aug 7, 2026 |
| Aug 5, 2026 | MRK Merck & Co., Inc. | SOpen-market sale Common Stock | -34,705 | $128.77 | $4.5M | 31,716 | Aug 7, 2026 |
| Aug 5, 2026 | MRK Merck & Co., Inc. | MOption exercise Stock Option (Right to Buy)derivative | -4,600 | $0.00 | $0 | 0 | Aug 7, 2026 |
| Aug 5, 2026 | MRK Merck & Co., Inc. | MOption exercise Stock Option (Right to Buy)derivative | -13,542 | $0.00 | $0 | 0 | Aug 7, 2026 |
| Aug 5, 2026 | MRK Merck & Co., Inc. | MOption exercise Stock Option (Right to Buy)derivative | -34,705 | $0.00 | $0 | 0 | Aug 7, 2026 |
| May 5, 2026 | MRK Merck & Co., Inc. | AGrant or award Restricted Stock Unitderivative | +4,640 | $0.00 | $0 | 4,640 | May 7, 2026 |
| May 5, 2026 | MRK Merck & Co., Inc. | AGrant or award Stock Option (Right to Buy)derivative | +13,582 | $0.00 | $0 | 13,582 | May 7, 2026 |
| Apr 29, 2026 | MRK Merck & Co., Inc. | MOption exercise Common Stock | +1,377 | $110.03 | $152k | 32,395 | May 1, 2026 |
| Apr 29, 2026 | MRK Merck & Co., Inc. | FTax withholding Common Stock | -679 | $110.03 | $75k | 31,716 | May 1, 2026 |
| Apr 29, 2026 | MRK Merck & Co., Inc. | MOption exercise Restricted Stock Unitderivative | -1,377 | $0.00 | $0 | 2,755 | May 1, 2026 |
| Feb 6, 2026 | MRK Merck & Co., Inc. | MOption exercise Common Stock | +5,000 | $77.62 | $388k | 35,838 | Feb 6, 2026 |
| Feb 6, 2026 | MRK Merck & Co., Inc. | SOpen-market sale Common Stock | -5,000 | $121.91 | $610k | 30,838 | Feb 6, 2026 |
| Feb 6, 2026 | MRK Merck & Co., Inc. | MOption exercise Stock Option (Right to Buy)derivative | -5,000 | $0.00 | $0 | 4,600 | Feb 6, 2026 |
| Jan 26, 2026 | MRK Merck & Co., Inc. | AGrant or award Common Stock | +6,112 | $107.40 | $656k | 30,838 | Jan 28, 2026 |
| Nov 3, 2025 | MRK Merck & Co., Inc. | SOpen-market sale Common Stock | -8,614 | $83.59 | $720k | 24,578 | Nov 4, 2025 |
| Aug 4, 2025 | MRK Merck & Co., Inc. | MOption exercise Common Stock | +17,119 | $79.29 | $1.4M | 41,445 | Aug 5, 2025 |
| Aug 4, 2025 | MRK Merck & Co., Inc. | FTax withholding Common Stock | -8,432 | $79.29 | $669k | 33,013 | Aug 5, 2025 |
| Aug 4, 2025 | MRK Merck & Co., Inc. | MOption exercise Restricted Stock Unitderivative | -17,119 | $0.00 | $0 | 0 | Aug 5, 2025 |
| Apr 29, 2025 | MRK Merck & Co., Inc. | AGrant or award Restricted Stock Unitderivative | +4,132 | $0.00 | $0 | 4,132 | May 1, 2025 |
| Apr 29, 2025 | MRK Merck & Co., Inc. | AGrant or award Stock Option (Right to Buy)derivative | +18,807 | $0.00 | $0 | 18,807 | May 1, 2025 |
Questions about David Michael Williams
Answered from the filings on this page, as of the latest one.
Is David Michael Williams buying or selling?
In the last 12 months David Michael Williams reported 0 open-market buys worth $0 and 3 open-market sells worth $8.1M on SEC Form 4; the latest was sold $6.8M of MRK on Aug 5, 2026. Grants, option exercises and tax withholding are not counted.
How did David Michael Williams's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and David Michael Williams has 0.
Where does David Michael Williams file Form 4?
David Michael Williams has filed Form 4 at MRK (Merck & Co., Inc.) as EVP,Chief Info&Digital Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.