Transactions
1
Insider / Merck & Co., Inc.
Downing Cristal N
Chief Comm. & Public Afrs Ofcr at Merck & Co., Inc.
- Company
- Merck & Co., Inc.
- Ticker
- MRK
- First filing on record
- November 12, 2025
- Latest trade on record
- November 10, 2025
- SEC filings
- EDGAR ↗
Downing Cristal N, Chief Comm. & Public Afrs Ofcr at Merck & Co., Inc., has disclosed 1 transaction in MRK since November 12, 2025: 0 purchases (0 open-market buys) and 1 sale, worth about $616K at the reported prices. The latest was filed November 12, 2025, 2 days after the trade.
Open-market buys
0
Sales
1
Avg. disclosure lag
2.0d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)
In the last 12 months Downing Cristal N made no purchases and 1 sale worth $616K. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Downing Cristal N has traded 1 stock on record; the largest by dollars is MRK.
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| S | Open-market sale | 1 | 7,085 | $616K |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2025 | 1 | 0 | 1 · $616K |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| MRK | Sell S | November 10, 2025 | November 12, 2025 | 2d | 7,085 | $87 | $616K | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| November 12, 2025 | Form 4 | 0000310158-25-000061 | 1 | published | EDGAR ↗ |
Other insiders at Merck & Co., Inc.
- Karsanbhai Surendralal Lanca Director 30 rows
- Zachary Jennifer EVP, General Counsel 20 rows
- Warden Kathy J Chair, CEO and President 19 rows
- Williams David Michael EVP,Chief Info&Digital Officer 19 rows
- RUSSO PATRICIA F Director 16 rows
- Smart Dalton E. III SVP Fin. - Global Controller 16 rows
- DeLuca Richard R. EVP&Pres, Merck Animal Heallth 15 rows
- Maraldo David R. EVP & Pres. MMD 14 rows
- Guindo Chirfi EVP, Access, Policy & Comms 11 rows
- Craig Pamela J. Director 10 rows
Everyone on file, with contracts and lobbying under the company's name: Merck & Co., Inc..
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 1 | 1 | November 12, 2025 | November 12, 2025 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.