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LONGFELLOW INVESTMENT MANAGEMENT CO LLC

Position in MRK — Merck & Co., Inc.

CIK 1167487 BOSTON, MA

Position in MRK

as of Jun 30, 2026 · filed Aug 6, 2026
Position Value
$804,024
+$51,370 QoQ
Shares Held
6,257
0.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.17%
of 13F equity value
Holder Rank
#2,294
of 3,769 holders
Holding Since
Dec 2020
23 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

LONGFELLOW INVESTMENT MANAGEMENT CO LLC holds $15,257,888 across 7 Drug Manufacturers - General names. MRK ranks #3 (5.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 MRK
Merck & Co., Inc.
This page
6,257 $804,024

All Filings in MRK

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23 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $804,024 6,257
2026-03-31 $752,654 6,257
2025-12-31 $1,220,279 11,593
2025-09-30 $1,626,227 19,376
2025-06-30 $1,533,804 19,376
2025-03-31 $1,739,189 19,376
2024-12-31 $1,601,031 16,094
2024-09-30 $1,331,491 11,725
2024-06-30 $962,668 7,776
2024-03-31 $1,019,313 7,725
2023-12-31 $1,288,289 11,817
2023-09-30 $1,216,560 11,817
2023-06-30 $993,046 8,606
2023-03-31 $1,066,666 10,026
2022-12-31 $1,112,384 10,026
2022-09-30 $1,660,910 19,286
2022-06-30 $1,758,304 19,286
2022-03-31 $1,582,416 19,286
2021-12-31 $1,478,079 19,286
2021-09-30 $1,448,571 19,286
2021-06-30 $1,499,872 19,286
2021-03-31 $2,085,131 27,048
2020-12-31 $2,006,225 24,526