Merck (MRK)Officer sold ~$1.83M

~$1.83M

Approx. value · 15K sh @ $121.87

21K

Holds after · shares reported

Traded

Feb 6, 2026

Filed

Feb 6, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Nov 13, 2025CongressDisclosed partial sale of MRK — reported range $1,001 - $15,000
2. Nov 18, 2025CongressDisclosed purchase of MRK — reported range $1,001 - $15,000
3. Dec 12, 2025FDARecall: Merck Emend (aprepitant) for oral suspension, 125 mg, Single-Dose Kit, Rx Only, Manufactured for: Merck Sharpe & Dohme LLC, Rahway, NJ 07065, USA, Manufactured…
4. Dec 12, 2025FDARecall: Noxafil Powdermix (posaconazole) for Delayed-Release Oral Suspension, 300 mg, 8 packets per carton, Rx Only, Manufactured for: Merck Sharp & Doohme LLC, Rahway…
5. Dec 18, 2025CongressDisclosed sale of MRK — reported range $1,001 - $15,000
6. Dec 19, 2025CongressDisclosed purchase of MRK — reported range $1,001 - $15,000
7. Jan 13, 2026Federal contract · $96K obligatedDepartment of Veterans Affairs awarded Merck: $96K obligated to date
8. Jan 27, 2026FDAFDA drug approval: Noxafil
9. Jan 27, 2026FDAFDA drug approval: Noxafil
10. Feb 3, 2026Company filing · Form 8-K · ResultsReported its results
11. Feb 4, 2026Insider · 4 peopleInsiders: 6 sales (~$13.2M)
12. Feb 4, 2026CongressDisclosed purchase of MRK — reported range $1,001 - $15,000
13. Feb 5, 2026InsiderOfficer sold ~$2.44M of MRK shares in the open market
14. Feb 6, 2026 · this disclosureInsiderOfficer sold ~$1.83M of MRK shares in the open market

What came next

1. Feb 6, 2026Insider · 2 peopleInsiders: 2 sales (~$5.2M)
2. Feb 9, 2026Insider · 2 peopleInsiders: 4 sales (~$15.7M)
3. Feb 10, 2026FDAFDA drug approval: Keytruda
4. Feb 10, 2026FDAFDA drug approval: Keytruda Qlex
5. Feb 10, 2026InsiderOfficer sold ~$1.2M of MRK shares in the open market
6. Feb 12, 2026InsiderOfficer sold ~$1.21M of MRK shares in the open market
7. Mar 27, 20265% stakeThe Vanguard Group reported a passive stake (13G)
8. Apr 15, 2026Federal contract · $23K obligatedDepartment of Veterans Affairs awarded Merck: $23K obligated to date
9. Apr 24, 2026FDAFDA drug approval: Keytruda Qlex
10. Apr 30, 2026Company filing · Form 8-K · ResultsReported its results
11. Apr 30, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 7.5%
12. May 4, 2026Federal contract · $43K obligatedDepartment of Veterans Affairs awarded Merck: $43K obligated to date
13. May 8, 2026Federal contract · $23K obligatedDepartment of Veterans Affairs awarded Merck: $23K obligated to date
14. May 11, 2026Federal contract · $23K obligatedDepartment of Veterans Affairs awarded Merck: $23K obligated to date
15. May 11, 2026Federal contract · $342K obligatedDepartment of Veterans Affairs awarded Merck: $342K obligated to date
16. May 21, 2026Federal contract · $23K obligatedDepartment of Veterans Affairs awarded Merck: $23K obligated to date

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Merck

For Merck, OQRO holds 26 insider filings (SEC Form 4 or Form 144), 4 Congress trade reports, 123 fund holdings reports (13F) and 1 federal contract award dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its MRK page.

Other recent filings by Johannes Jacobus Oosthuizen, President, U.S. Market

• SEC Form 4 at Merck (MRK)Feb 20, 2025

The full history of Johannes Jacobus Oosthuizen, President, U.S. Market is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Merck

• House Clerk periodic transaction reportOct 7, 2026
• USAspending.gov award recordSep 17, 2026
• House Clerk periodic transaction reportSep 9, 2026
• House Clerk periodic transaction reportSep 9, 2026
• SEC Form 13F-HRAug 26, 2026
• SEC Form 13F-HRAug 25, 2026

Everything OQRO holds on this company is on its MRK page.