SEC 13F Intelligence

Thornburg Investment Management Inc / MRK

Thornburg Investment Management Inc’s Merck & Co Inc Position

Does Thornburg Investment Management Inc own Merck & Co Inc (MRK)? Yes — 3.73M shares worth $449M (+4.66% of its 13F portfolio) as of Q1 2026.

Position Value
$449M
Q1 2026
Shares
3.73M
% of Portfolio
+4.66%
Quarters Held
30
currently held

Position History MRK

Reported value by quarter
Q4 ’18: $306MQ4 ’18Q1 ’19: $304MQ2 ’19: $306MQ3 ’19: $307MQ4 ’19: $332MQ4 ’19Q1 ’20: $286MQ2 ’20: $187MQ3 ’20: $175MQ4 ’20: $147MQ4 ’20Q1 ’21: $141MQ2 ’21: $160MQ3 ’21: $167MQ4 ’21: $176MQ4 ’21Q1 ’22: $200MQ2 ’22: $167MQ3 ’22: $137MQ4 ’22: $173,092Q4 ’22Q1 ’23: $160,464Q2 ’23: $171,523Q3 ’23: $207,559Q4 ’23: $220MQ4 ’23Q1 ’24: $247MQ2 ’24: $232MQ3 ’24: $213MQ4 ’24: $187MQ4 ’24Q1 ’25: $2.8BQ2 ’25: $374MQ3 ’25: $295MQ4 ’25: $392MQ4 ’25Q1 ’26: $449Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q1 20263.73M$449M+4.66%
Q4 20253.73M$392M+4.95%
Q3 20253.52M$295M+3.85%
Q2 20254.73M$374M+4.82%
Q1 20253.09M$2.8B+3.87%
Q4 20241.88M$187M+2.47%
Q3 20241.88M$213M+2.77%
Q2 20241.87M$232M+3.26%
Q1 20241.87M$247M+3.44%
Q4 20232.02M$220M+3.17%
Q3 20232.02M$207,559+3.41%
Q2 20231.49M$171,523+2.78%
Q1 20231.51M$160,464+2.65%
Q4 20221.56M$173,092+2.93%
Q3 20221.59M$137M+2.43%
Q2 20221.84M$167M+2.57%
Q1 20222.44M$200M+2.63%
Q4 20212.29M$176M+2.06%
Q3 20212.23M$167M+2.05%
Q2 20212.05M$160M+1.84%
Q1 20211.83M$141M+1.64%
Q4 20201.80M$147M+1.75%
Q3 20202.11M$175M+2.31%
Q2 20202.41M$187M+2.40%
Q1 20203.71M$286M+4.09%
Q4 20193.65M$332M+3.19%
Q3 20193.65M$307M+2.96%
Q2 20193.65M$306M+2.94%
Q1 20193.65M$304M+2.94%
Q4 20184.01M$306M+3.00%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Thornburg Investment Management Inc’s full portfolio or all institutional holders of MRK.