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Merck & Co.

MRK Net selling
CIK 0000310158 #311 in the set updated 17 Sep 2026
Bought (120 mo)
$1.62M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$922.23M
$0.00 on a plan · $850.14M straight out of an exercise
Sold at will
$72.10M
49 of 192 sales
Net
−$920.61M
−$70.47M against sales at will

By person

41 insiders · 308 transactions
36.9×

Robert M. Davis holds 36.9 times base salary in stock. $60.80M of shares against $1.65M in salary for 2025.

Salary from the company's own proxy. The shares are what Robert M. Davis last reported holding, valued at $135.00, the price Common Stock was last bought or sold at on the open market here, on 13 Aug 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
FRAZIER KENNETH C
Executive Chair
—
$413.58M (35) scheduled
−$413.58M
700,653
0.0284%
$94.59M
+135.1%
Davis Robert M
Chairman, CEO & President
—
$123.52M (13) scheduled
−$123.52M
450,351
0.0183%
$60.80M
+15,549%
DeLuca Richard R.
EVP&Pres, Merck Animal Heallth
—
$71.18M (19) scheduled
−$71.18M
110,167
0.0045%
$14.87M
+111.6%
Zachary Jennifer
EVP, General Counsel
—
$57.95M (9) scheduled
−$57.95M
45,509
0.0018%
$6.14M
+532.0%
Schechter Adam H
EVP & Pres-Global Human Health
—
$48.22M (10) scheduled
−$48.22M
55,406
0.0022%
$7.48M
−56.7%
Chattopadhyay Sanat
Exe V-P & Pres. MMD
—
$45.61M (12) scheduled
−$45.61M
15,347
0.0006%
$2.07M
—
Gerberding Julie L.
EVP, Chief Patient Officer
—
$28.93M (7) scheduled
−$28.93M
48,712
0.0020%
$6.58M
+12.4%
MIZELL STEVEN
EVP, Chief HR Officer
—
$20.94M (14) scheduled
−$20.94M
23,619
0.0010%
$3.19M
+54,644%
PERLMUTTER ROGER M
Exe V-P & Pres, MRL
—
$16.97M (1) scheduled
−$16.97M
214,428
0.0087%
$28.95M
+172.0%
Karachun Rita A
Sr. VP Fince-Global Controller
—
$12.91M (6) scheduled
−$12.91M
45,710
0.0019%
$6.17M
+212.0%
Litchfield Caroline
EVP & CFO
—
$11.50M (3) scheduled
−$11.50M
92,301
0.0037%
$12.46M
+370.9%
Oosthuizen Johannes Jacobus
EVP, Oncology & Int?l
—
$10.25M (7) scheduled
−$10.25M
21,895
0.0009%
$2.96M
+56.9%
Williams David Michael
EVP,Chief Info&Digital Officer
—
$9.71M (8) scheduled
−$9.71M
31,716
0.0013%
$4.28M
+768.0%
Clyburn Frank
EVP & Pres ? Human Health
—
$8.49M (4) scheduled
−$8.49M
97,095
0.0039%
$13.11M
+42.4%
Guindo Chirfi
EVP, Access, Policy & Comms
—
$8.15M (5)
−$8.15M
36,613
0.0015%
$4.94M
+570.2%
GRADDICK WEIR MIRIAN M
Exe V-P, HR
—
$7.91M (5) scheduled
−$7.91M
80,433
0.0033%
$10.86M
−7.0%
Holston Michael J
EVP, General Counsel
—
$6.65M (3) scheduled
−$6.65M
69,786
0.0028%
$9.42M
+10.0%
Li Dean Y
Executive VP & President, MRL
—
$4.84M (3) scheduled
−$4.84M
94,431
0.0038%
$12.75M
+795.6%
Watson Ashley
SVP Chief Ethics & Com Officer
—
$3.50M (1) scheduled
−$3.50M
9,770
0.0004%
$1.32M
+6,079%
Maraldo David R.
EVP & Pres. MMD
—
$2.41M (3) scheduled
−$2.41M
18,212
0.0007%
$2.46M
+2.2%
WEEKS WENDELL P
Director
—
$1.36M (4) scheduled
−$1.36M
100
<0.0001%
$13.50K
0.0%
BAKER DOUGLAS M JR
Director
$1.33M (1)
—
+$1.33M
16,000
0.0006%
$2.16M
+1,500%
WENDELL PETER C
Director
—
$1.25M (2) scheduled
−$1.25M
1,000
<0.0001%
$135.00K
0.0%
LAZARUS ROCHELLE B
Director
—
$1.18M (1) scheduled
−$1.18M
4,594
0.0002%
$620.19K
0.0%
Smart Dalton E. III
SVP Fin. - Global Controller
—
$1.12M (3) scheduled
−$1.12M
9,388
0.0004%
$1.27M
+23,780%
GLOCER THOMAS H
Director
—
$1.04M (2) scheduled
−$1.04M
5,100
0.0002%
$688.50K
0.0%
Downing Cristal N
Chief Comm. & Public Afrs Ofcr
—
$825.95K (2)
−$825.95K
0
0.0000%
$0.00
—
Romanelli Joseph
President, Human Health Int?l
$44.34K (8)
$679.21K (5)
−$634.87K
28,739
0.0012%
$3.88M
+13.1%
BRUN LESLIE A
Director
—
$612.98K (2) scheduled
−$612.98K
1,948
<0.0001%
$262.98K
—
RUSSO PATRICIA F
Director
—
$322.12K (1) scheduled
−$322.12K
13,148
0.0005%
$1.77M
0.0%
KIDDER C ROBERT
Director
—
$317.70K (1) scheduled
−$317.70K
9,317
0.0004%
$1.26M
0.0%
Cech Thomas R
Director
—
$317.10K (1) scheduled
−$317.10K
100
<0.0001%
$13.50K
0.0%
THULIN INGE G
Director
$250.00K (1)
—
+$250.00K
2,933
0.0001%
$395.94K
+2,833%
Klobuchar Michael A
EVP - Chief Strategy Officer
—
—
—
23,621
0.0010%
$3.19M
+106.1%
AMBROSE ADELE D
Sr.V-P & Chief Comuns Officer
—
—
—
22,708
0.0009%
$3.07M
+24.1%
Nally Michael
EVP, Chief Marketing Officer
—
—
—
19,630
0.0008%
$2.65M
+4,360%
Larson Betty D
EVP, Chief HR Officer
—
—
—
13,774
0.0006%
$1.86M
—
Fleming Michael
SVP Chief Ethics & Com Officer
—
—
—
10,283
0.0004%
$1.39M
+612.5%
Scholefield James H
EVP,Chief Info&Digital Officer
—
—
—
7,142
0.0003%
$964.17K
—
LeCointe-Cephas Lisa
SVP Chief Ethics & Com Officer
—
—
—
5,142
0.0002%
$694.13K
+287.6%
Garay Arpa
SVP Human Health Global Mktg.
—
—
—
2,109
<0.0001%
$284.72K
+627.2%

Individual transactions

106
Insider
Date
Role
Action
Shares
Price
Amount
Maraldo David R.
2 May 2026
EVP & Pres. MMD
Exercised, kept
552
$112.16
$61.91K
Smart Dalton E. III
2 May 2026
SVP Fin. - Global Controller
Exercised, kept
383
$112.16
$42.96K
Larson Betty D
30 Apr 2026
EVP, Chief HR Officer
Exercised, kept
11,350
$110.95
$1.26M
Smart Dalton E. III
30 Apr 2026
SVP Fin. - Global Controller
Exercised, kept
464
$110.95
$51.48K
Oosthuizen Johannes Jacobus
29 Apr 2026
EVP, Oncology & Int?l
Exercised, kept
1,377
$110.03
$151.51K
Davis Robert M
29 Apr 2026
Chairman, CEO & President
Exercised, kept
13,300
$110.03
$1.46M
Litchfield Caroline
29 Apr 2026
EVP & CFO
Exercised, kept
3,935
$110.03
$432.97K
Larson Betty D
29 Apr 2026
EVP, Chief HR Officer
Exercised, kept
2,085
$110.03
$229.41K
Zachary Jennifer
29 Apr 2026
EVP, General Counsel
Exercised, kept
2,951
$110.03
$324.70K
Li Dean Y
29 Apr 2026
Executive VP & President, MRL
Exercised, kept
4,722
$110.03
$519.56K
Smart Dalton E. III
29 Apr 2026
SVP Fin. - Global Controller
Exercised, kept
944
$110.03
$103.87K
Williams David Michael
29 Apr 2026
EVP,Chief Info&Digital Officer
Exercised, kept
1,377
$110.03
$151.51K
DeLuca Richard R.
29 Apr 2026
EVP&Pres, Merck Animal Heallth
Exercised, kept
2,518
$110.03
$277.06K
Chattopadhyay Sanat
29 Apr 2026
Exe V-P & Pres. MMD
Exercised, kept
2,597
$110.03
$285.75K
Guindo Chirfi
29 Apr 2026
EVP, Access, Policy & Comms
Exercised, kept
1,967
$110.03
$216.43K
Guindo Chirfi
4 Aug 2025
Chief Marketing Officer
Exercised, kept
36,903
$79.29
$2.93M
Williams David Michael
4 Aug 2025
EVP,Chief Info&Digital Officer
Exercised, kept
17,119
$79.29
$1.36M
Smart Dalton E. III
3 May 2025
SVP Fin. - Global Controller
Exercised, kept
1,532
$83.18
$127.43K
Smart Dalton E. III
3 May 2025
SVP Fin. - Global Controller
Exercised, kept
518
$83.18
$43.09K
Romanelli Joseph
2 May 2025
President, Human Health Int?l
Exercised, kept
2,262
$83.26
$188.33K
Smart Dalton E. III
2 May 2025
SVP Fin. - Global Controller
Exercised, kept
381
$83.26
$31.72K
Larson Betty D
30 Apr 2025
EVP, Chief HR Officer
Exercised, kept
11,350
$84.71
$961.46K
Romanelli Joseph
30 Apr 2025
President, Human Health Int?l
Exercised, kept
2,063
$84.71
$174.76K
Smart Dalton E. III
30 Apr 2025
SVP Fin. - Global Controller
Exercised, kept
464
$84.71
$39.31K
Oosthuizen Johannes Jacobus
8 Feb 2025
President, U.S. Market
Exercised, kept
13,002
$87.28
$1.13M
Guindo Chirfi
5 Aug 2024
Chief Marketing Officer
Exercised, kept
36,901
$115.20
$4.25M
Oosthuizen Johannes Jacobus
4 May 2024
President, U.S. Market
Exercised, kept
912
$127.51
$116.29K
Klobuchar Michael A
4 May 2024
EVP - Chief Strategy Officer
Exercised, kept
887
$127.51
$113.10K
DeLuca Richard R.
4 May 2024
EVP&Pres, Merck Animal Heallth
Exercised, kept
27,126
$127.51
$3.46M
Smart Dalton E. III
4 May 2024
SVP Fin. - Global Controller
Exercised, kept
612
$127.51
$78.04K
Smart Dalton E. III
3 May 2024
SVP Fin. - Global Controller
Exercised, kept
1,530
$128.26
$196.24K
Smart Dalton E. III
3 May 2024
SVP Fin. - Global Controller
Exercised, kept
516
$128.26
$66.18K
Smart Dalton E. III
2 May 2024
SVP Fin. - Global Controller
Exercised, kept
381
$128.80
$49.07K
Romanelli Joseph
2 May 2024
President, Human Health Int?l
Exercised, kept
2,262
$128.80
$291.35K
Oosthuizen Johannes Jacobus
30 Oct 2023
President, U.S. Market
Exercised, kept
915
$102.82
$94.08K
Guindo Chirfi
3 Aug 2023
Chief Marketing Officer
Exercised, kept
36,901
$105.70
$3.90M
LeCointe-Cephas Lisa
4 May 2023
SVP Chief Ethics & Com Officer
Exercised, kept
813
$118.22
$96.11K
Klobuchar Michael A
4 May 2023
EVP - Chief Strategy Officer
Exercised, kept
885
$118.22
$104.62K
Oosthuizen Johannes Jacobus
4 May 2023
President, U.S. Market
Exercised, kept
907
$118.22
$107.23K
Karachun Rita A
3 May 2023
Sr. VP Fince-Global Controller
Exercised, kept
803
$117.89
$94.67K
LeCointe-Cephas Lisa
3 May 2023
SVP Chief Ethics & Com Officer
Exercised, kept
689
$117.89
$81.23K
Klobuchar Michael A
1 May 2023
EVP - Chief Strategy Officer
Exercised, kept
866
$115.47
$100.00K
LeCointe-Cephas Lisa
1 May 2023
SVP Chief Ethics & Com Officer
Exercised, kept
643
$115.47
$74.25K
Oosthuizen Johannes Jacobus
1 May 2023
President, U.S. Market
Exercised, kept
866
$115.47
$100.00K
Litchfield Caroline
1 May 2023
EVP & CFO
Exercised, kept
866
$115.47
$100.00K
Li Dean Y
1 May 2023
Executive VP & President, MRL
Exercised, kept
1,062
$115.47
$122.63K
Karachun Rita A
1 May 2023
Sr. VP Fince-Global Controller
Exercised, kept
930
$115.47
$107.39K
Williams David Michael
1 May 2023
EVP,Chief Info&Digital Officer
Exercised, kept
577
$115.47
$66.63K
Williams David Michael
10 Feb 2023
EVP,Chief Info&Digital Officer
Exercised, kept
1,205
$106.72
$128.60K
Oosthuizen Johannes Jacobus
30 Oct 2022
President, U.S. Market
Exercised, kept
913
$100.77
$92.00K
LeCointe-Cephas Lisa
4 May 2022
SVP Chief Ethics & Com Officer
Exercised, kept
813
$87.10
$70.81K
Klobuchar Michael A
4 May 2022
EVP - Chief Strategy Officer
Exercised, kept
885
$87.10
$77.08K
Karachun Rita A
4 May 2022
Sr. VP Fince-Global Controller
Exercised, kept
949
$87.10
$82.66K
Garay Arpa
4 May 2022
SVP Human Health Global Mktg.
Exercised, kept
907
$87.10
$79.00K
Oosthuizen Johannes Jacobus
4 May 2022
SVP, U.S. Market
Exercised, kept
907
$87.10
$79.00K
Garay Arpa
3 May 2022
SVP Human Health Global Mktg.
Exercised, kept
773
$87.65
$67.75K
Klobuchar Michael A
3 May 2022
EVP - Chief Strategy Officer
Exercised, kept
773
$87.65
$67.75K
Oosthuizen Johannes Jacobus
3 May 2022
SVP, U.S. Market
Exercised, kept
773
$87.65
$67.75K
Karachun Rita A
3 May 2022
Sr. VP Fince-Global Controller
Exercised, kept
902
$87.65
$79.06K
Williams David Michael
3 May 2022
EVP,Chief Info&Digital Officer
Exercised, kept
427
$87.65
$37.43K
Li Dean Y
3 May 2022
Executive VP & President, MRL
Exercised, kept
773
$87.65
$67.75K
Litchfield Caroline
3 May 2022
EVP & CFO
Exercised, kept
773
$87.65
$67.75K
LeCointe-Cephas Lisa
3 May 2022
SVP Chief Ethics & Com Officer
Exercised, kept
452
$87.65
$39.62K
Garay Arpa
1 May 2022
SVP Human Health Global Mktg.
Exercised, kept
866
$88.69
$76.81K
Klobuchar Michael A
1 May 2022
EVP - Chief Strategy Officer
Exercised, kept
866
$88.69
$76.81K
Oosthuizen Johannes Jacobus
1 May 2022
SVP, U.S. Market
Exercised, kept
866
$88.69
$76.81K
Karachun Rita A
1 May 2022
Sr. VP Fince-Global Controller
Exercised, kept
928
$88.69
$82.30K
Williams David Michael
1 May 2022
EVP,Chief Info&Digital Officer
Exercised, kept
577
$88.69
$51.17K
Li Dean Y
1 May 2022
Executive VP & President, MRL
Exercised, kept
1,061
$88.69
$94.10K
Litchfield Caroline
1 May 2022
EVP & CFO
Exercised, kept
866
$88.69
$76.81K
LeCointe-Cephas Lisa
1 May 2022
SVP Chief Ethics & Com Officer
Exercised, kept
640
$88.69
$56.76K
Williams David Michael
10 Feb 2022
EVP,Chief Info&Digital Officer
Exercised, kept
1,202
$76.53
$91.99K
MIZELL STEVEN
30 Oct 2021
EVP, Chief HR Officer
Exercised, kept
4,715
$88.05
$415.16K
Clyburn Frank
30 Oct 2021
EVP & Pres ? Human Health
Exercised, kept
2,358
$88.05
$207.62K
Clyburn Frank
4 May 2021
EVP, Chief Commercial Officer
Exercised, kept
1,906
$75.98
$144.82K
LeCointe-Cephas Lisa
4 May 2021
SVP Chief Ethics & Com Officer
Exercised, kept
694
$75.98
$52.73K
Zachary Jennifer
4 May 2021
EVP, General Counsel
Exercised, kept
5,772
$75.98
$438.56K
Li Dean Y
4 May 2021
Executive VP & President, MRL
Exercised, kept
694
$75.98
$52.73K
Litchfield Caroline
4 May 2021
EVP & CFO
Exercised, kept
1,039
$75.98
$78.94K
Karachun Rita A
4 May 2021
Sr. VP Fince-Global Controller
Exercised, kept
1,212
$75.98
$92.09K
Williams David Michael
4 May 2021
EVP,Chief Info&Digital Officer
Exercised, kept
417
$75.98
$31.68K
Karachun Rita A
3 May 2021
Sr. VP Fince-Global Controller
Exercised, kept
875
$74.50
$65.19K
Williams David Michael
3 May 2021
EVP,Chief Info&Digital Officer
Exercised, kept
412
$74.50
$30.69K
Li Dean Y
3 May 2021
Executive VP & President, MRL
Exercised, kept
750
$74.50
$55.88K
Litchfield Caroline
3 May 2021
EVP & CFO
Exercised, kept
750
$74.50
$55.88K
LeCointe-Cephas Lisa
3 May 2021
SVP Chief Ethics & Com Officer
Exercised, kept
437
$74.50
$32.56K
Karachun Rita A
1 May 2021
Sr. VP Fince-Global Controller
Exercised, kept
901
$74.50
$67.12K
Williams David Michael
1 May 2021
EVP,Chief Info&Digital Officer
Exercised, kept
560
$74.50
$41.72K
Li Dean Y
1 May 2021
Executive VP & President, MRL
Exercised, kept
1,030
$74.50
$76.74K
Litchfield Caroline
1 May 2021
EVP & CFO
Exercised, kept
840
$74.50
$62.58K
LeCointe-Cephas Lisa
1 May 2021
SVP Chief Ethics & Com Officer
Exercised, kept
622
$74.50
$46.34K
Williams David Michael
10 Feb 2021
EVP,Chief Info&Digital Officer
Exercised, kept
1,167
$75.04
$87.57K
MIZELL STEVEN
30 Oct 2020
EVP, Chief HR Officer
Exercised, kept
4,574
$75.89
$347.12K
Nally Michael
30 Oct 2020
EVP, Chief Marketing Officer
Exercised, kept
2,287
$75.89
$173.56K
Clyburn Frank
30 Oct 2020
EVP, Chief Commercial Officer
Exercised, kept
2,287
$75.89
$173.56K
Nally Michael
5 May 2020
EVP, Chief Marketing Officer
Exercised, kept
2,345
$76.86
$180.24K
Karachun Rita A
5 May 2020
Sr. VP Fince-Global Controller
Exercised, kept
3,283
$76.86
$252.33K
Fleming Michael
5 May 2020
SVP Chief Ethics & Com Officer
Exercised, kept
1,290
$76.86
$99.15K
Clyburn Frank
5 May 2020
EVP, Chief Commercial Officer
Exercised, kept
3,752
$76.86
$288.38K
Zachary Jennifer
4 May 2020
EVP, General Counsel
Exercised, kept
5,772
$77.67
$448.31K
Nally Michael
4 May 2020
EVP, Chief Marketing Officer
Exercised, kept
1,298
$77.67
$100.82K
Karachun Rita A
4 May 2020
Sr. VP Fince-Global Controller
Exercised, kept
1,212
$77.67
$94.14K
Fleming Michael
4 May 2020
SVP Chief Ethics & Com Officer
Exercised, kept
692
$77.67
$53.75K
Clyburn Frank
4 May 2020
EVP, Chief Commercial Officer
Exercised, kept
1,904
$77.67
$147.88K
Fleming Michael
3 May 2020
SVP Chief Ethics & Com Officer
Exercised, kept
1,541
$77.67
$119.69K
Karachun Rita A
3 May 2020
Sr. VP Fince-Global Controller
Exercised, kept
875
$77.67
$67.96K
Showing 250 of 308 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 757
Amendments (4/A) skipped 7
Filings about a different issuer 4
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 143
Sales at will 49
Transactions with no price 0
Shares from compensation/vesting 12,345,980
Sales filed before the plan box existed 16
History held since 1 Sep 2016