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Calamos Wealth Management LLC

Position in MRK — Merck & Co., Inc.

CIK 1455258 NAPERVILLE, IL

Position in MRK

as of Jun 30, 2026 · filed Jul 31, 2026
Position Value
$2,674,213
+$170,738 QoQ
Shares Held
20,811
-0.0% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.13%
of 13F equity value
Holder Rank
#1,406
of 3,769 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 74% Shared 0% None 26%

Common Shares in MRK Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

Calamos Wealth Management LLC holds $79,224,350 across 11 Drug Manufacturers - General names. MRK ranks #4 (3.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 MRK
Merck & Co., Inc.
This page
20,811 $2,674,213

All Filings in MRK

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,674,213 20,811
2026-03-31 $2,503,475 20,812
2025-12-31 $2,030,465 19,290
2025-09-30 $1,322,820 15,761
2025-06-30 $1,140,695 14,410
2025-03-31 $1,619,270 18,040
2024-12-31 $1,991,987 20,024
2024-09-30 $15,842,982 139,512
2024-06-30 $15,044,299 121,521
2024-03-31 $18,078,997 137,014
2023-12-31 $14,618,709 134,092
2023-09-30 $13,922,031 135,231
2023-06-30 $2,237,181 19,388
2023-03-31 $2,032,261 19,102
2022-12-31 $2,186,491 19,707
2022-09-30 $1,707,415 19,826
2022-06-30 $1,141,448 12,520
2022-03-31 $1,020,209 12,434
2021-12-31 $1,257,125 16,403
2021-09-30 $1,208,970 16,096
2021-06-30 $1,285,926 16,535
2021-03-31 $1,270,752 16,484
2020-12-31 $1,454,812 17,785
2020-09-30 $1,307,209 15,759
2020-06-30 $4,390,257 56,773
2020-03-31 $4,697,185 61,050