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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%
Insider
Date
Role
Action
Shares
Price
Amount
Zachary Jennifer
12 Aug 2026
EVP, General Counsel
Sold after exercise
80,315
$133.46
$10.72M
Williams David Michael
5 Aug 2026
EVP,Chief Info&Digital Officer
Sold after exercise
34,705
$128.77
$4.47M
Williams David Michael
5 Aug 2026
EVP,Chief Info&Digital Officer
Sold after exercise
13,542
$128.77
$1.74M
Williams David Michael
5 Aug 2026
EVP,Chief Info&Digital Officer
Sold after exercise
4,600
$128.77
$592.35K
Maraldo David R.
5 Aug 2026
EVP & Pres. MMD
Sold after exercise
2,686
$128.72
$345.74K
Maraldo David R.
5 Aug 2026
EVP & Pres. MMD
Sold after exercise
9,709
$128.72
$1.25M
Maraldo David R.
5 Aug 2026
EVP & Pres. MMD
Sold after exercise
6,311
$128.72
$812.34K
Zachary Jennifer
9 Feb 2026
EVP, General Counsel
Sold after exercise
38,835
$119.15
$4.63M
Zachary Jennifer
9 Feb 2026
EVP, General Counsel
Sold after exercise
56,792
$119.15
$6.77M
Zachary Jennifer
9 Feb 2026
EVP, General Counsel
Sold after exercise
25,946
$119.15
$3.09M
Williams David Michael
6 Feb 2026
EVP,Chief Info&Digital Officer
Sold after exercise
5,000
$121.91
$609.53K
Li Dean Y
4 Feb 2026
Executive VP & President, MRL
Sold after exercise
15,087
$118.77
$1.79M
Litchfield Caroline
4 Feb 2026
EVP & CFO
Sold after exercise
41,997
$119.61
$5.02M
Smart Dalton E. III
4 Feb 2026
SVP Fin. - Global Controller
Sold after exercise
2,400
$119.68
$287.22K
Smart Dalton E. III
4 Feb 2026
SVP Fin. - Global Controller
Sold after exercise
4,000
$119.68
$478.70K
Smart Dalton E. III
25 Apr 2025
SVP Fin. - Global Controller
Sold after exercise
4,262
$82.76
$352.72K
Davis Robert M
14 Feb 2024
Chairman, CEO & President
Sold after exercise
85,021
$125.40
$10.66M
Litchfield Caroline
14 Feb 2024
EVP & CFO
Sold after exercise
38,291
$125.50
$4.81M
Davis Robert M
13 Feb 2024
Chairman, CEO & President
Sold after exercise
25,324
$126.37
$3.20M
Davis Robert M
13 Feb 2024
Chairman, CEO & President
Sold after exercise
124,676
$125.74
$15.68M
Li Dean Y
9 Feb 2024
Executive VP & President, MRL
Sold after exercise
14,702
$125.50
$1.85M
Zachary Jennifer
2 Feb 2024
EVP, General Counsel
Sold after exercise
49,499
$126.97
$6.28M
MIZELL STEVEN
2 Feb 2024
EVP, Chief HR Officer
Sold after exercise
50,694
$126.65
$6.42M
Oosthuizen Johannes Jacobus
2 Feb 2024
President, U.S. Market
Sold after exercise
18,959
$127.18
$2.41M
Karachun Rita A
4 May 2023
Sr. VP Fince-Global Controller
Sold after exercise
15,875
$117.53
$1.87M
MIZELL STEVEN
3 May 2023
EVP, Chief HR Officer
Sold after exercise
13,400
$119.01
$1.59M
MIZELL STEVEN
3 May 2023
EVP, Chief HR Officer
Sold after exercise
12,000
$119.01
$1.43M
MIZELL STEVEN
3 May 2023
EVP, Chief HR Officer
Sold after exercise
15,000
$119.01
$1.79M
MIZELL STEVEN
3 May 2023
EVP, Chief HR Officer
Sold after exercise
13,000
$119.01
$1.55M
Williams David Michael
2 May 2023
EVP,Chief Info&Digital Officer
Sold after exercise
7,509
$116.82
$877.22K
DeLuca Richard R.
1 May 2023
EVP&Pres, Merck Animal Heallth
Sold after exercise
75,436
$116.03
$8.75M
Davis Robert M
28 Apr 2023
Chairman, CEO & President
Sold after exercise
143,329
$114.93
$16.47M
DeLuca Richard R.
28 Apr 2023
EVP&Pres, Merck Animal Heallth
Sold after exercise
66,163
$115.00
$7.61M
Chattopadhyay Sanat
13 Apr 2023
Exe V-P & Pres. MMD
Sold after exercise
67,892
$115.07
$7.81M
Chattopadhyay Sanat
13 Apr 2023
Exe V-P & Pres. MMD
Sold after exercise
66,163
$115.06
$7.61M
Zachary Jennifer
3 Feb 2023
EVP, General Counsel
Sold after exercise
75,436
$103.17
$7.78M
Chattopadhyay Sanat
9 Jan 2023
Exe V-P & Pres. MMD
Sold after exercise
1,702
$114.46
$194.81K
Chattopadhyay Sanat
9 Jan 2023
Exe V-P & Pres. MMD
Sold after exercise
38,216
$113.78
$4.35M
Chattopadhyay Sanat
9 Jan 2023
Exe V-P & Pres. MMD
Sold after exercise
3,940
$112.78
$444.36K
Chattopadhyay Sanat
9 Jan 2023
Exe V-P & Pres. MMD
Sold after exercise
4,538
$111.73
$507.05K
Chattopadhyay Sanat
9 Jan 2023
Exe V-P & Pres. MMD
Sold after exercise
35,598
$110.61
$3.94M
MIZELL STEVEN
10 Nov 2022
EVP, Chief HR Officer
Sold after exercise
15,000
$101.42
$1.52M
Davis Robert M
9 Nov 2022
CEO & President
Sold after exercise
100
$103.59
$10.36K
Davis Robert M
9 Nov 2022
CEO & President
Sold after exercise
79,918
$102.98
$8.23M
Davis Robert M
9 Nov 2022
CEO & President
Sold after exercise
87,595
$101.94
$8.93M
MIZELL STEVEN
8 Nov 2022
EVP, Chief HR Officer
Sold after exercise
20,000
$101.00
$2.02M
Oosthuizen Johannes Jacobus
7 Nov 2022
President, U.S. Market
Sold after exercise
45,561
$99.47
$4.53M
FRAZIER KENNETH C
7 Nov 2022
Executive Chair
Sold after exercise
84,721
$100.07
$8.48M
FRAZIER KENNETH C
7 Nov 2022
Executive Chair
Sold after exercise
126,134
$99.42
$12.54M
FRAZIER KENNETH C
7 Nov 2022
Executive Chair
Sold after exercise
24,914
$98.45
$2.45M
FRAZIER KENNETH C
4 Nov 2022
Executive Chair
Sold after exercise
34,810
$99.08
$3.45M
FRAZIER KENNETH C
4 Nov 2022
Executive Chair
Sold after exercise
200,190
$98.53
$19.73M
FRAZIER KENNETH C
3 Nov 2022
Executive Chair
Sold after exercise
20,383
$99.09
$2.02M
FRAZIER KENNETH C
3 Nov 2022
Executive Chair
Sold after exercise
214,617
$98.68
$21.18M
FRAZIER KENNETH C
2 Nov 2022
Executive Chair
Sold after exercise
94,339
$100.40
$9.47M
FRAZIER KENNETH C
2 Nov 2022
Executive Chair
Sold after exercise
205,661
$99.68
$20.50M
FRAZIER KENNETH C
1 Nov 2022
Executive Chair
Sold after exercise
700
$101.05
$70.73K
FRAZIER KENNETH C
1 Nov 2022
Executive Chair
Sold after exercise
96,981
$100.22
$9.72M
FRAZIER KENNETH C
1 Nov 2022
Executive Chair
Sold after exercise
202,319
$99.61
$20.15M
FRAZIER KENNETH C
31 Oct 2022
Executive Chair
Sold after exercise
229,302
$101.03
$23.17M
FRAZIER KENNETH C
31 Oct 2022
Executive Chair
Sold after exercise
70,698
$99.82
$7.06M
Zachary Jennifer
28 Oct 2022
EVP, General Counsel
Sold after exercise
65,487
$99.85
$6.54M
Zachary Jennifer
28 Oct 2022
EVP, General Counsel
Sold after exercise
99,768
$99.07
$9.88M
MIZELL STEVEN
28 Oct 2022
EVP, Chief HR Officer
Sold after exercise
8,000
$98.84
$790.72K
MIZELL STEVEN
28 Oct 2022
EVP, Chief HR Officer
Sold after exercise
17,000
$100.00
$1.70M
Karachun Rita A
28 Oct 2022
Sr. VP Fince-Global Controller
Sold after exercise
31,997
$100.34
$3.21M
FRAZIER KENNETH C
28 Oct 2022
Executive Chair
Sold after exercise
178,363
$100.80
$17.98M
FRAZIER KENNETH C
28 Oct 2022
Executive Chair
Sold after exercise
313,232
$100.25
$31.40M
FRAZIER KENNETH C
28 Oct 2022
Executive Chair
Sold after exercise
75,489
$99.15
$7.48M
DeLuca Richard R.
28 Oct 2022
EVP&Pres, Merck Animal Heallth
Sold after exercise
164,557
$100.26
$16.50M
Chattopadhyay Sanat
28 Oct 2022
Exe V-P & Pres. MMD
Sold after exercise
100,292
$100.10
$10.04M
FRAZIER KENNETH C
9 Nov 2021
Executive Chair
Sold after exercise
29,615
$83.23
$2.46M
FRAZIER KENNETH C
9 Nov 2021
Executive Chair
Sold after exercise
634,266
$82.22
$52.15M
Litchfield Caroline
4 Nov 2021
EVP & CFO
Sold after exercise
18,335
$91.00
$1.67M
DeLuca Richard R.
4 Nov 2021
EVP&Pres, Merck Animal Heallth
Sold after exercise
29,782
$90.40
$2.69M
Karachun Rita A
3 Nov 2021
Sr. VP Fince-Global Controller
Sold after exercise
25,000
$88.45
$2.21M
Clyburn Frank
1 Nov 2021
EVP & Pres ? Human Health
Sold after exercise
39,762
$87.87
$3.49M
Gerberding Julie L.
1 Nov 2021
EVP, Chief Patient Officer
Sold after exercise
96,270
$87.91
$8.46M
DeLuca Richard R.
29 Oct 2021
EVP&Pres, Merck Animal Heallth
Sold after exercise
135,405
$87.56
$11.86M
Chattopadhyay Sanat
29 Oct 2021
Exe V-P & Pres. MMD
Sold after exercise
24,619
$87.32
$2.15M
Clyburn Frank
10 May 2021
EVP & Pres ? Human Health
Sold after exercise
19,324
$78.32
$1.51M
Davis Robert M
5 Oct 2020
EVP, Global Svcs & CFO
Sold after exercise
251,273
$81.03
$20.36M
Clyburn Frank
5 Aug 2020
EVP, Chief Commercial Officer
Sold after exercise
18,876
$81.55
$1.54M
Gerberding Julie L.
17 Jul 2020
EVP Strat Comm, GI Pub Policy
Sold after exercise
18,174
$80.01
$1.45M
Gerberding Julie L.
17 Jul 2020
EVP Strat Comm, GI Pub Policy
Sold after exercise
18,111
$80.00
$1.45M
BRUN LESLIE A
7 May 2020
Director
Sold after exercise
5,000
$75.46
$377.30K
WEEKS WENDELL P
7 May 2020
Director
Sold after exercise
5,000
$76.02
$380.10K
Gerberding Julie L.
13 Jan 2020
EVP Strat Comm, GI Pub Policy
Sold after exercise
102,073
$89.34
$9.12M
DeLuca Richard R.
9 Aug 2019
EVP&Pres, Merck Animal Heallth
Sold after exercise
6,427
$85.09
$546.85K
DeLuca Richard R.
8 Aug 2019
EVP&Pres, Merck Animal Heallth
Sold after exercise
31,699
$85.01
$2.69M
Davis Robert M
25 Jun 2019
EVP, Global Svcs & CFO
Sold after exercise
26,550
$86.00
$2.28M
Davis Robert M
25 Jun 2019
EVP, Global Svcs & CFO
Sold after exercise
190,168
$85.35
$16.23M
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