Stocks · Health care · Pharmaceutical Preparations

Merck & Co.

MRK Clue Score53
United States Fiscal year ends December CIK 0000310158
145.60
+2.26%
Close, 9 Oct 2026 · USD

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
145.60 on 9 Oct 2026
156 119 82 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $85.70 14 Oct 2025 $84.70 15 Oct 2025 $84.11 16 Oct 2025 $83.92 17 Oct 2025 $84.79 20 Oct 2025 $86.32 21 Oct 2025 $87.62 22 Oct 2025 $87.61 23 Oct 2025 $87.18 24 Oct 2025 $87.49 27 Oct 2025 $88.00 28 Oct 2025 $87.03 29 Oct 2025 $86.58 30 Oct 2025 $86.28 31 Oct 2025 $85.98 3 Nov 2025 $82.49 4 Nov 2025 $83.86 5 Nov 2025 $84.39 6 Nov 2025 $85.78 7 Nov 2025 $86.28 10 Nov 2025 $86.75 11 Nov 2025 $90.95 12 Nov 2025 $91.45 13 Nov 2025 $92.93 14 Nov 2025 $92.92 17 Nov 2025 $92.86 18 Nov 2025 $96.43 19 Nov 2025 $95.05 20 Nov 2025 $94.97 21 Nov 2025 $97.76 24 Nov 2025 $100.40 25 Nov 2025 $105.66 26 Nov 2025 $104.63 28 Nov 2025 $104.83 1 Dec 2025 $101.83 2 Dec 2025 $101.03 3 Dec 2025 $102.27 4 Dec 2025 $100.89 5 Dec 2025 $99.72 8 Dec 2025 $98.93 9 Dec 2025 $96.89 10 Dec 2025 $97.62 11 Dec 2025 $99.01 12 Dec 2025 $100.30 15 Dec 2025 $100.26 16 Dec 2025 $98.27 17 Dec 2025 $99.18 18 Dec 2025 $100.69 19 Dec 2025 $101.09 22 Dec 2025 $104.72 23 Dec 2025 $105.04 24 Dec 2025 $106.45 26 Dec 2025 $106.78 29 Dec 2025 $106.62 30 Dec 2025 $106.06 31 Dec 2025 $105.26 2 Jan 2026 $106.45 5 Jan 2026 $107.44 6 Jan 2026 $108.87 7 Jan 2026 $108.60 8 Jan 2026 $110.99 9 Jan 2026 $110.53 12 Jan 2026 $109.19 13 Jan 2026 $108.26 14 Jan 2026 $111.01 15 Jan 2026 $110.97 16 Jan 2026 $108.83 20 Jan 2026 $109.45 21 Jan 2026 $111.11 22 Jan 2026 $109.18 23 Jan 2026 $108.18 26 Jan 2026 $107.40 27 Jan 2026 $107.92 28 Jan 2026 $106.90 29 Jan 2026 $108.34 30 Jan 2026 $110.27 2 Feb 2026 $113.37 3 Feb 2026 $115.84 4 Feb 2026 $118.33 5 Feb 2026 $119.75 6 Feb 2026 $121.93 9 Feb 2026 $117.65 10 Feb 2026 $117.15 11 Feb 2026 $119.31 12 Feb 2026 $119.24 13 Feb 2026 $121.41 17 Feb 2026 $121.57 18 Feb 2026 $121.66 19 Feb 2026 $121.86 20 Feb 2026 $122.26 23 Feb 2026 $123.82 24 Feb 2026 $123.93 25 Feb 2026 $122.46 26 Feb 2026 $119.30 27 Feb 2026 $123.82 2 Mar 2026 $121.41 3 Mar 2026 $119.83 4 Mar 2026 $120.28 5 Mar 2026 $116.07 6 Mar 2026 $115.79 9 Mar 2026 $117.11 10 Mar 2026 $117.09 11 Mar 2026 $116.21 12 Mar 2026 $115.91 13 Mar 2026 $115.61 16 Mar 2026 $115.43 17 Mar 2026 $115.87 18 Mar 2026 $114.50 19 Mar 2026 $114.20 20 Mar 2026 $114.18 23 Mar 2026 $115.68 24 Mar 2026 $116.37 25 Mar 2026 $119.37 26 Mar 2026 $118.93 27 Mar 2026 $119.63 30 Mar 2026 $118.10 31 Mar 2026 $120.29 1 Apr 2026 $120.84 2 Apr 2026 $120.87 6 Apr 2026 $120.85 7 Apr 2026 $119.28 8 Apr 2026 $123.18 9 Apr 2026 $122.68 10 Apr 2026 $121.42 13 Apr 2026 $120.15 14 Apr 2026 $119.96 15 Apr 2026 $117.90 16 Apr 2026 $115.46 17 Apr 2026 $119.07 20 Apr 2026 $117.10 21 Apr 2026 $112.56 22 Apr 2026 $112.89 23 Apr 2026 $114.62 24 Apr 2026 $111.90 27 Apr 2026 $110.23 28 Apr 2026 $110.03 29 Apr 2026 $110.95 30 Apr 2026 $109.18 1 May 2026 $112.16 4 May 2026 $113.11 5 May 2026 $113.15 6 May 2026 $113.56 7 May 2026 $112.30 8 May 2026 $111.38 11 May 2026 $111.28 12 May 2026 $112.37 13 May 2026 $113.45 14 May 2026 $113.41 15 May 2026 $111.38 18 May 2026 $112.56 19 May 2026 $114.24 20 May 2026 $113.00 21 May 2026 $115.88 22 May 2026 $122.41 26 May 2026 $119.72 27 May 2026 $120.24 28 May 2026 $119.89 29 May 2026 $118.72 1 Jun 2026 $115.17 2 Jun 2026 $115.65 3 Jun 2026 $114.70 4 Jun 2026 $120.26 5 Jun 2026 $120.79 8 Jun 2026 $119.52 9 Jun 2026 $119.60 10 Jun 2026 $119.09 11 Jun 2026 $120.76 12 Jun 2026 $119.05 15 Jun 2026 $114.90 16 Jun 2026 $115.17 17 Jun 2026 $115.44 18 Jun 2026 $113.87 22 Jun 2026 $115.48 23 Jun 2026 $119.60 24 Jun 2026 $120.60 25 Jun 2026 $125.45 26 Jun 2026 $128.66 29 Jun 2026 $129.38 30 Jun 2026 $128.50 1 Jul 2026 $125.37 2 Jul 2026 $129.56 6 Jul 2026 $126.78 7 Jul 2026 $128.86 8 Jul 2026 $125.99 9 Jul 2026 $125.07 10 Jul 2026 $123.54 13 Jul 2026 $124.03 14 Jul 2026 $120.78 15 Jul 2026 $123.61 16 Jul 2026 $127.63 17 Jul 2026 $127.50 20 Jul 2026 $124.40 21 Jul 2026 $126.26 22 Jul 2026 $127.47 23 Jul 2026 $130.48 24 Jul 2026 $131.07 27 Jul 2026 $130.76 28 Jul 2026 $131.82 29 Jul 2026 $130.36 30 Jul 2026 $129.79 31 Jul 2026 $130.20 3 Aug 2026 $127.77 4 Aug 2026 $128.00 5 Aug 2026 $128.33 6 Aug 2026 $128.37 7 Aug 2026 $128.58 10 Aug 2026 $130.92 11 Aug 2026 $130.42 12 Aug 2026 $132.92 13 Aug 2026 $135.55 14 Aug 2026 $135.84 17 Aug 2026 $135.97 18 Aug 2026 $135.17 19 Aug 2026 $152.20 20 Aug 2026 $148.99 21 Aug 2026 $152.55 24 Aug 2026 $150.66 25 Aug 2026 $156.45 26 Aug 2026 $153.10 27 Aug 2026 $149.54 28 Aug 2026 $148.35 31 Aug 2026 $147.76 1 Sep 2026 $149.86 2 Sep 2026 $151.64 3 Sep 2026 $152.34 4 Sep 2026 $150.33 8 Sep 2026 $148.46 9 Sep 2026 $147.53 10 Sep 2026 $144.71 11 Sep 2026 $143.93 14 Sep 2026 $144.85 15 Sep 2026 $143.79 16 Sep 2026 $144.91 17 Sep 2026 $147.15 18 Sep 2026 $146.87 21 Sep 2026 $149.50 22 Sep 2026 $150.91 23 Sep 2026 $148.08 24 Sep 2026 $147.98 25 Sep 2026 $148.78 28 Sep 2026 $148.69 29 Sep 2026 $149.28 30 Sep 2026 $145.31 1 Oct 2026 $143.81 2 Oct 2026 $144.30 5 Oct 2026 $139.54 6 Oct 2026 $141.94 7 Oct 2026 $142.79 8 Oct 2026 $142.38 9 Oct 2026 $145.60 Williams David Michael EVP,Chief Info&Digital Officer Sold at will $720.04K 3 Nov 2025 · at $83.59 · 26.0% of stake Downing Cristal N Chief Comm. & Public Afrs Ofcr Sold at will $616.40K 10 Nov 2025 · at $87.00 · 100% of stake Smart Dalton E. III SVP Fin. - Global Controller Sold at will $765.92K 4 Feb 2026 · at $119.68 · 43.8% of stake Li Dean Y Executive VP & President, MRL Sold at will $1.79M 4 Feb 2026 · at $118.77 · 12.9% of stake Litchfield Caroline EVP & CFO Sold at will $5.02M 4 Feb 2026 · at $119.61 · 31.8% of stake Davis Robert M Chairman, CEO & President Sold at will $5.60M 4 Feb 2026 · at $118.04 · 9.7% of stake Guindo Chirfi Chief Marketing Officer Sold at will $2.44M 5 Feb 2026 · at $121.88 · 19.9% of stake Williams David Michael EVP,Chief Info&Digital Officer Sold at will $609.53K 6 Feb 2026 · at $121.91 · 14.0% of stake Oosthuizen Johannes Jacobus President, U.S. Market Sold at will $1.83M 6 Feb 2026 · at $121.87 · 41.4% of stake DeLuca Richard R. EVP&Pres, Merck Animal Heallth Sold at will $4.56M 6 Feb 2026 · at $120.92 · 19.0% of stake Guindo Chirfi Chief Marketing Officer Sold at will $1.18M 9 Feb 2026 · at $118.41 · 12.4% of stake Zachary Jennifer EVP, General Counsel Sold at will $14.49M 9 Feb 2026 · at $119.15 · 63.8% of stake Li Dean Y Executive VP & President, MRL Sold at will $1.20M 10 Feb 2026 · at $117.52 · 10.0% of stake Guindo Chirfi Chief Marketing Officer Sold at will $1.21M 12 Feb 2026 · at $121.46 · 14.2% of stake Maraldo David R. EVP & Pres. MMD Sold at will $2.41M 5 Aug 2026 · at $128.72 · 50.7% of stake Williams David Michael EVP,Chief Info&Digital Officer Sold at will $6.81M 5 Aug 2026 · at $128.77 · 62.5% of stake DeLuca Richard R. EVP&Pres, Merck Animal Heallth Sold at will $788.77K 6 Aug 2026 · at $130.38 · 3.7% of stake Guindo Chirfi EVP, Access, Policy & Comms Sold at will $1.97M 6 Aug 2026 · at $131.00 · 24.3% of stake DeLuca Richard R. EVP&Pres, Merck Animal Heallth Sold at will $2.71M 10 Aug 2026 · at $130.43 · 13.4% of stake DeLuca Richard R. EVP&Pres, Merck Animal Heallth Sold at will $1.69M 11 Aug 2026 · at $131.76 · 9.5% of stake DeLuca Richard R. EVP&Pres, Merck Animal Heallth Sold at will $1.54M 12 Aug 2026 · at $131.63 · 9.6% of stake Zachary Jennifer EVP, General Counsel Sold at will $10.72M 12 Aug 2026 · at $133.46 · 63.8% of stake Guindo Chirfi EVP, Access, Policy & Comms Sold at will $1.35M 13 Aug 2026 · at $135.00 · 21.5% of stake
0 buys23 sales at will0 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$65.01B
Net income
$18.25B
Free cash flow
$12.36B
Net margin
28.1%
Return on equity
34.7%
Debt to equity
0.93
Revenue growth, 1 yr
1.3%
Revenue growth, 5 yr
9.4% a year
EPS growth, 1 yr
8.0%

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
41.5B 7.1B FY20 Fiscal year 2020 Revenue $41.52B Net income $7.07B Margin 17.0% 48.7B 13B FY21 Fiscal year 2021 Revenue $48.70B Net income $13.05B Margin 26.8% · growth +17.3% 59.3B 14.5B FY22 Fiscal year 2022 Revenue $59.28B Net income $14.52B Margin 24.5% · growth +21.7% 60.1B 365M FY23 Fiscal year 2023 Revenue $60.12B Net income $365.00M Margin 0.6% · growth +1.4% 64.2B 17.1B FY24 Fiscal year 2024 Revenue $64.17B Net income $17.12B Margin 26.7% · growth +6.7% 65B 18.3B FY25 Fiscal year 2025 Revenue $65.01B Net income $18.25B Margin 28.1% · growth +1.3%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
13 Aug 2026 Guindo Chirfi
EVP, Access, Policy & Comms
Sold at will $1.35M 21.5%
12 Aug 2026 Zachary Jennifer
EVP, General Counsel
Sold at will $10.72M 63.8%
12 Aug 2026 DeLuca Richard R.
EVP&Pres, Merck Animal Heallth
Sold at will $1.54M 9.6%
11 Aug 2026 DeLuca Richard R.
EVP&Pres, Merck Animal Heallth
Sold at will $1.69M 9.5%
10 Aug 2026 DeLuca Richard R.
EVP&Pres, Merck Animal Heallth
Sold at will $2.71M 13.4%
6 Aug 2026 Guindo Chirfi
EVP, Access, Policy & Comms
Sold at will $1.97M 24.3%