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HENNESSY ADVISORS INC

Position in MRK — Merck & Co., Inc.

CIK 1145255 NOVATO, CA

Position in MRK

as of Jun 30, 2026 · filed Jul 16, 2026
Position Value
$14,758,225
+$588,063 QoQ
Shares Held
114,850
-2.5% QoQ
Ownership
0.005%
of shares outstanding
% of Portfolio
0.48%
of 13F equity value
Holder Rank
#605
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

HENNESSY ADVISORS INC holds $74,827,284 across 8 Drug Manufacturers - General names. MRK ranks #1 (19.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MRK
Merck & Co., Inc.
This page
114,850 $14,758,225

All Filings in MRK

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $14,758,225 114,850
2026-03-31 $14,170,162 117,800
2025-12-31 $12,825,931 121,850
2025-09-30 $10,516,429 125,300
2025-06-30 $9,934,580 125,500
2025-03-31 $11,098,824 123,650
2024-12-31 $6,461,226 64,950
2024-09-30 $5,331,642 46,950
2024-06-30 $5,348,160 43,200
2024-03-31 $5,818,995 44,100
2023-12-31 $5,004,018 45,900
2023-09-30 $4,993,075 48,500
2023-06-30 $5,711,805 49,500
2023-03-31 $5,564,197 52,300
2022-12-31 $10,518,060 94,800
2022-09-30 $10,601,372 123,100
2022-06-30 $11,605,941 127,300
2022-03-31 $10,695,217 130,350
2021-12-31 $11,691,432 152,550
2021-09-30 $11,367,898 151,350
2021-06-30 $11,389,416 146,450
2021-03-31 $11,008,457 142,800
2020-12-31 $8,548,096 104,500
2020-09-30 $7,299,603 88,000
2020-06-30 $6,944,237 89,800
2020-03-31 $7,163,111 93,100