MERCK & CO INC

$MRK
Smart money positioned

77 of the Top-200 alpha managers hold $MRK as of the latest 13F snapshot.

13F holders
3,678
Insider buys · 90d
0
Congress · 90d
1trades

Smart Money · top-200 alpha cohort

77 holders · Q1 2026
Top-200 Cohort Floods Into $MRK: 51 New Positions in Q1 2026

77 of the Top-200 alpha managers hold $MRK as of Q1 2026 — 29 new, 2 added, 5 trimmed, 41 held flat.

29 initiations · 2 adds · 5 trims · 41 held flat  ·  Q1 2026

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 3,678 · Source: 13F-HR
01
State Street
0.43% of portfolio
120,040,168 sh
02
Axa S.a.
0.50% of portfolio
119,325,673 sh
03
Gates Foundation Trust
0.48% of portfolio
91,662,791 sh
04
State Farm Mutual Automobile Insurance Co.
0.27% of portfolio
48,669,880 sh
05
Deutsche Bank AG
0.44% of portfolio
48,169,598 sh
06
Renaissancere Holdings Ltd.
0.50% of portfolio
47,053,044 sh
07
ProShare Advisors LLC
0.43% of portfolio
37,981,502 sh
08
Brightline Capital Management, LLC
0.16% of portfolio
37,219,500 sh
09
Al Warda Investments RSC Ltd
3.28% of portfolio
30,340,475 sh
10
US Bancorp De
0.54% of portfolio
27,979,608 sh
See all 3,678 13F holders · Pro →

Insider activity · last 90 days

18 transactions · 10 filers
12 Feb 2026
Guindo Chirfi
▼ SOLD
10,000
$121.46
S
10 Feb 2026
Li Dean Y
▼ SOLD
10,235
$117.52
S
09 Feb 2026
Zachary Jennifer
▼ SOLD
38,835
$119.15
S
09 Feb 2026
Zachary Jennifer
▼ SOLD
56,792
$119.15
S
09 Feb 2026
Zachary Jennifer
▼ SOLD
25,946
$119.15
S
09 Feb 2026
Guindo Chirfi
▼ SOLD
10,000
$118.41
S
04 Feb 2026
Smart Dalton E. III
▼ SOLD
2,400
$119.68
S
04 Feb 2026
Smart Dalton E. III
▼ SOLD
4,000
$119.68
S
06 Feb 2026
Oosthuizen Johannes Jacobus
▼ SOLD
15,000
$121.87
S
04 Feb 2026
Litchfield Caroline
▼ SOLD
41,997
$119.61
S
04 Feb 2026
Li Dean Y
▼ SOLD
15,087
$118.77
S
06 Feb 2026
Williams David Michael
▼ SOLD
5,000
$121.91
S

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

32 disclosures · STOCK Act
House · New Jersey · Traded Feb 4
BOUGHT
$1K–$15K
Mar 17STOCK
House · Tennessee · Traded Feb 4
BOUGHT
$1K–$15K
Mar 5STOCK
House · Texas · Traded Jan 13
SOLD
$15K–$50K
Feb 11STOCK
House · Texas · Traded Dec 18
SOLD
$1K–$15K
Jan 15STOCK
House · California · Traded Dec 19
BOUGHT
$1K–$15K
Jan 12STOCK
House · Michigan · Traded Dec 19
BOUGHT
$1K–$15K
Jan 9STOCK
House · Georgia · Traded Dec 18
SOLD
$1K–$15K
Jan 5STOCK
House · California · Traded Nov 18
BOUGHT
$1K–$15K
Dec 15STOCK
House · Texas · Traded Nov 13
SOLD
$1K–$15K
Dec 11STOCK
House · Texas · Traded Oct 27
SOLD
$15K–$50K
Nov 10STOCK
See full $MRK Congress history →

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 04:29 UTC.