Wellington Management Group’s Merck MRK Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$10.1B Sell
84,314,971
-2,120,487
-2% -$245M 1.89% 8
2025
Q4
$9.1B Buy
86,435,458
+11,156,354
+15% +$1.05B 1.59% 8
2025
Q3
$6.32B Sell
75,279,104
-1,577,388
-2% -$130M 1.11% 11
2025
Q2
$6.08B Sell
76,856,492
-4,813,159
-6% -$383M 1.1% 11
2025
Q1
$7.33B Buy
81,669,651
+927,621
+1% +$86.6M 1.41% 10
2024
Q4
$8.03B Buy
80,742,030
+4,932,647
+7% +$509M 1.47% 9
2024
Q3
$8.61B Buy
75,809,383
+3,327,404
+5% +$395M 1.51% 8
2024
Q2
$8.97B Sell
72,481,979
-13,866,280
-16% -$1.79B 1.6% 8
2024
Q1
$11.4B Buy
86,348,259
+752,260
+0.9% +$92.7M 2.02% 4
2023
Q4
$9.33B Buy
85,595,999
+3,153,333
+4% +$327M 1.74% 6
2023
Q3
$8.49B Buy
82,442,666
+5,196,914
+7% +$560M 1.7% 6
2023
Q2
$8.91B Buy
77,245,752
+8,681,935
+13% +$986M 1.69% 6
2023
Q1
$7.29B Buy
68,563,817
+6,546,946
+11% +$707M 1.45% 7
2022
Q4
$6.88B Buy
62,016,871
+21,859,699
+54% +$2.23B 1.38% 7
2022
Q3
$3.46B Sell
40,157,172
-566,255
-1% -$50.5M 0.74% 27
2022
Q2
$3.71B Sell
40,723,427
-4,977,477
-11% -$441M 0.75% 28
2022
Q1
$3.75B Sell
45,700,904
-4,172,404
-8% -$329M 0.64% 35
2021
Q4
$3.82B Buy
49,873,308
+314,230
+0.6% +$25M 0.61% 32
2021
Q3
$3.72B Buy
49,559,078
+1,152,241
+2% +$87.6M 0.63% 30
2021
Q2
$3.76B Buy
48,406,837
+6,909,616
+17% +$514M 0.63% 30
2021
Q1
$3.05B Sell
41,497,221
-1,116,523
-3% -$82.4M 0.54% 38
2020
Q4
$3.33B Sell
42,613,744
-4,262,632
-9% -$326M 0.61% 34
2020
Q3
$3.71B Buy
46,876,376
+2,508,830
+6% +$197M 0.77% 25
2020
Q2
$3.27B Sell
44,367,546
-5,797,547
-12% -$436M 0.73% 29
2020
Q1
$3.68B Sell
50,165,093
-9,215,533
-16% -$724M 0.97% 22
2019
Q4
$5.15B Sell
59,380,626
-1,132,641
-2% -$93M 1.08% 13
2019
Q3
$4.86B Buy
60,513,267
+2,720,688
+5% +$218M 1.1% 13
2019
Q2
$4.62B Sell
57,792,579
-7,937,023
-12% -$608M 1.02% 14
2019
Q1
$5.22B Sell
65,729,602
-2,825,895
-4% -$211M 1.18% 9
2018
Q4
$5B Sell
68,555,497
-5,095,409
-7% -$360M 1.25% 9
2018
Q3
$4.99B Sell
73,650,906
-4,214,884
-5% -$269M 1.05% 10
2018
Q2
$4.51B Sell
77,865,790
-1,827,106
-2% -$103M 1% 10
2018
Q1
$4.14B Sell
79,692,896
-18,929,471
-19% -$1.02B 0.94% 12
2017
Q4
$5.3B Sell
98,622,367
-12,074,880
-11% -$669M 1.17% 8
2017
Q3
$6.76B Sell
110,697,247
-1,584,411
-1% -$96.1M 1.55% 4
2017
Q2
$6.87B Sell
112,281,658
-9,455,853
-8% -$576M 1.62% 3
2017
Q1
$7.38B Sell
121,737,511
-8,415,528
-6% -$511M 1.78% 3
2016
Q4
$7.31B Sell
130,153,039
-27,906,512
-18% -$1.63B 1.83% 3
2016
Q3
$9.41B Sell
158,059,551
-26,332,277
-14% -$1.54B 2.36% 1
2016
Q2
$10.1B Sell
184,391,828
-4,277,326
-2% -$228M 2.62% 1
2016
Q1
$9.53B Sell
188,669,154
-2,067,832
-1% -$101M 2.51% 1
2015
Q4
$9.61B Buy
190,736,986
+1,724,723
+0.9% +$87M 2.51% 1
2015
Q3
$8.91B Buy
189,012,263
+9,130,807
+5% +$485M 2.48% 1
2015
Q2
$9.77B Buy
179,881,456
+6,127,515
+4% +$344M 2.52% 1
2015
Q1
$9.53B Buy
173,753,941
+9,614,601
+6% +$544M 2.45% 1
2014
Q4
$8.89B Buy
164,139,340
+6,984,407
+4% +$389M 2.35% 1
2014
Q3
$8.89B Sell
157,154,933
-2,656,430
-2% -$149M 2.45% 1
2014
Q2
$8.82B Sell
159,811,363
-4,811,402
-3% -$262M 2.37% 1
2014
Q1
$8.92B Buy
164,622,765
+3,213,700
+2% +$166M 2.48% 1
2013
Q4
$7.71B Buy
161,409,065
+9,997,733
+7% +$457M 2.22% 1
2013
Q3
$6.88B Buy
151,411,332
+561,762
+0.4% +$25.6M 2.15% 1
2013
Q2
$6.69B Buy
+150,849,570
New +$6.74B 2.18% 1

Other funds holding MRK

Wellington Management Group's MRK Position: Q1 2026 in Review

Wellington Management Group reduced its Merck (MRK) stake by 2.5% in Q1 2026, selling an estimated $245M and leaving 84,314,971 shares worth $10.1B. The position accounts for 1.89% of the portfolio, ranked #8.

Wellington Management Group first reported a position in MRK in Q2 2013 and has held it in 52 quarters since. The position peaked at $11.4B in Q1 2024. 3,777 funds tracked by Wall St. Rank hold MRK as of Q1 2026.

  • Wellington Management Group held 84,314,971 shares of Merck worth $10.1B as of Q1 2026.
  • Wellington Management Group sold 2,120,487 Merck shares in Q1 2026, an estimated $245M.
  • Merck made up 1.89% of Wellington Management Group's portfolio in Q1 2026, its #8 holding.
  • Wellington Management Group first reported a position in Merck in Q2 2013 and has held it in 52 quarters since.
  • Wellington Management Group's Merck position peaked at $11.4B in Q1 2024.
  • 3,777 funds tracked by Wall St. Rank held Merck as of Q1 2026.

Based on Wellington Management Group's 13F filing for Q1 2026, filed 15 May 2026.