Question 1

How many shares of MRK does GREAT LAKES ADVISORS, LLC own?

Accepted Answer

As of 2026-Q1, GREAT LAKES ADVISORS, LLC holds 1.6M shares of MRK (MERCK & CO INC).

Question 2

What is GREAT LAKES ADVISORS, LLC's MRK position worth?

Accepted Answer

As of 2026-Q1, GREAT LAKES ADVISORS, LLC's MRK position is worth $188.8M.

Question 3

Is GREAT LAKES ADVISORS, LLC buying or selling MRK?

Accepted Answer

In 2026-Q1, GREAT LAKES ADVISORS, LLC decreased their MRK position (-6.4% change in shares).

Question 4

When did GREAT LAKES ADVISORS, LLC first buy MRK?

Accepted Answer

Based on available 13F filings, GREAT LAKES ADVISORS, LLC first reported a position in MRK in 2026-Q1. They have held the position across 29 quarters.