Merck & Co. Inc. (MRK) is a NYSE-listed equity covered by Valdrans. Last close $145.60, +2.26% on the day; +0.90% over 1 week, +1.16% over 4 weeks, +19.91% over 6 months (prices as of 9 Oct 2026). Valdrans Insider Activity Signal: Negative — 0 buys vs 17 sells disclosed in the last 90 days.
Last close (9 Oct 2026) $145.60
Today +2.26%
1 week +0.90%
4 weeks +1.16%
6 months +19.91% Coverage of MRK(15) MRK Q3 2026: filings, holdings, and macro context 7 days ago
MRK Q3 2026: filings, holdings, and macro context 27 Sept 2026
MRK Q3 2026 update — filings and holdings 19 Sept 2026
MRK Q2 2026: filings, holdings, and macro context 11 Sept 2026
MRK Q2 2026: filings, holdings, and macro context 12 Aug 2026
MRK Q2 2026 update — filings and holdings 4 Aug 2026
MRK Q2 2026: filings, holdings, and macro context 27 Jul 2026
MRK Q2 2026: filings, holdings, and macro context 19 Jul 2026
MRK Q2 2026 update — filings and holdings 11 Jul 2026
MRK Q1 2026: filings, holdings, and macro context 3 Jul 2026
MRK Q1 2026 update — filings and holdings 25 Jun 2026
MRK Q1 2026 update — filings and holdings 17 Jun 2026
MRK Q1 2026 update — filings and holdings 9 Jun 2026
MRK Q1 2026: filings, holdings, and macro context 1 Jun 2026
MRK Q1 2026: filings, holdings, and macro context 24 May 2026