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Callahan Advisors, LLC

Position in MRK — Merck & Co., Inc.

CIK 1395055 Houston, TX

Position in MRK

as of Jun 30, 2026 · filed Aug 3, 2026
Position Value
$2,916,950
+$101,924 QoQ
Shares Held
22,700
-3.0% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
#1,357
of 3,769 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MRK Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

Callahan Advisors, LLC holds $70,085,621 across 7 Drug Manufacturers - General names. MRK ranks #4 (4.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 MRK
Merck & Co., Inc.
This page
22,700 $2,916,950

All Filings in MRK

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,916,950 22,700
2026-03-31 $2,815,026 23,402
2025-12-31 $2,463,294 23,402
2025-09-30 $2,007,353 23,917
2025-06-30 $2,065,284 26,090
2025-03-31 $2,400,002 26,738
2024-12-31 $2,749,229 27,636
2024-09-30 $3,416,452 30,085
2024-06-30 $3,736,036 30,178
2024-03-31 $4,036,086 30,588
2023-12-31 $3,333,940 30,581
2023-09-30 $3,147,490 30,573
2023-06-30 $3,345,848 28,996
2023-03-31 $3,119,780 29,324
2022-12-31 $3,252,610 29,316
2022-09-30 $2,523,918 29,307
2022-06-30 $2,672,101 29,309
2022-03-31 $2,405,706 29,320
2021-12-31 $1,950,334 25,448
2021-09-30 $1,760,503 23,439
2021-06-30 $428,357 5,508
2021-03-31 $281,687 3,654
2020-12-31 $298,160 3,645
2020-09-30 $312,058 3,762
2020-06-30 $267,020 3,453
2020-03-31 $280,215 3,642