SEC 13F Intelligence

D. E. Shaw & Co., Inc. / MRK

D. E. Shaw & Co., Inc.’s Merck & Co Inc Position

Does D. E. Shaw & Co., Inc. own Merck & Co Inc (MRK)? Yes — 3.40M shares worth $409M (+0.25% of its 13F portfolio) as of Q1 2026, down from 3.52M shares the prior filed quarter.

Position Value
$409M
Q1 2026
Shares
3.40M
% of Portfolio
+0.25%
Quarters Held
30
currently held

Position History MRK

Reported value by quarter
Q4 ’18: $396MQ4 ’18Q1 ’19: $496MQ2 ’19: $415MQ3 ’19: $338MQ4 ’19: $211MQ4 ’19Q1 ’20: $402MQ2 ’20: $668MQ3 ’20: $489MQ4 ’20: $811MQ4 ’20Q1 ’21: $756MQ2 ’21: $301MQ3 ’21: $266MQ4 ’21: $52MQ4 ’21Q1 ’22: $56MQ2 ’22: $34MQ3 ’22: $9MQ4 ’22: $148MQ4 ’22Q1 ’23: $226MQ2 ’23: $152MQ3 ’23: $174MQ4 ’23: $266MQ4 ’23Q1 ’24: $267MQ2 ’24: $294MQ3 ’24: $768MQ4 ’24: $634MQ4 ’24Q1 ’25: $836MQ2 ’25: $821MQ3 ’25: $291MQ4 ’25: $370MQ4 ’25Q1 ’26: $409Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q1 20263.40M$409M+0.25%
Q4 20253.52M$370M+0.20%
Q3 20253.47M$291M+0.16%
Q2 202510.37M$821M+0.58%
Q1 20259.31M$836M+0.74%
Q4 20246.37M$634M+0.47%
Q3 20246.76M$768M+0.66%
Q2 20242.38M$294M+0.28%
Q1 20242.02M$267M+0.23%
Q4 20232.44M$266M+0.23%
Q3 20231.69M$174M+0.18%
Q2 20231.31M$152M+0.15%
Q1 20232.12M$226M+0.24%
Q4 20221.34M$148M+0.16%
Q3 2022104.0K$9M+0.01%
Q2 2022367.9K$34M+0.04%
Q1 2022680.6K$56M+0.05%
Q4 2021675.6K$52M+0.04%
Q3 20213.55M$266M+0.24%
Q2 20213.87M$301M+0.26%
Q1 20219.80M$756M+0.73%
Q4 20209.92M$811M+0.73%
Q3 20205.90M$489M+0.50%
Q2 20208.64M$668M+0.80%
Q1 20205.22M$402M+0.63%
Q4 20192.32M$211M+0.24%
Q3 20194.01M$338M+0.42%
Q2 20194.95M$415M+0.52%
Q1 20195.97M$496M+0.64%
Q4 20185.18M$396M+0.55%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See D. E. Shaw & Co., Inc.’s full portfolio or all institutional holders of MRK.