Grantham, Mayo, Van Otterloo & Co (GMO)
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Grantham, Mayo, Van Otterloo & Co (GMO)’s Merck MRK Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’s Portfolio MRK Stock Details MRK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$844M Buy
7,013,777
+143,632
+2% +$16.6M 2.16% 15
2025
Q4 		$723M Buy
6,870,145
+244,795
+4% +$23M 1.85% 19
2025
Q3 		$556M Buy
6,625,350
+155,777
+2% +$12.8M 1.57% 19
2025
Q2 		$512M Sell
6,469,573
-217,023
-3% -$17.3M 1.54% 23
2025
Q1 		$600M Buy
6,686,596
+521,325
+8% +$48.7M 1.89% 19
2024
Q4 		$613M Buy
6,165,271
+253,227
+4% +$26.1M 2% 16
2024
Q3 		$671M Buy
5,912,044
+583,752
+11% +$69.4M 2.1% 15
2024
Q2 		$660M Buy
5,328,292
+601,234
+13% +$77.4M 2.23% 13
2024
Q1 		$624M Buy
4,727,058
+701,200
+17% +$86.4M 2.27% 14
2023
Q4 		$439M Sell
4,025,858
-3,058
-0.1% -$317K 1.94% 15
2023
Q3 		$415M Buy
4,028,916
+411,073
+11% +$44.3M 1.96% 11
2023
Q2 		$417M Buy
3,617,843
+564,296
+18% +$64.1M 1.93% 11
2023
Q1 		$325M Sell
3,053,547
-89,264
-3% -$9.64M 1.65% 15
2022
Q4 		$349M Buy
3,142,811
+36,156
+1% +$3.7M 1.86% 12
2022
Q3 		$268M Sell
3,106,655
-3,300
-0.1% -$295K 1.54% 15
2022
Q2 		$284M Sell
3,109,955
-737,348
-19% -$65.4M 1.54% 14
2022
Q1 		$316M Buy
3,847,303
+59,929
+2% +$4.72M 1.52% 15
2021
Q4 		$290M Buy
3,787,374
+77,162
+2% +$6.15M 1.39% 19
2021
Q3 		$279M Buy
3,710,212
+138,334
+4% +$10.5M 1.38% 20
2021
Q2 		$278M Buy
3,571,878
+133,722
+4% +$9.95M 1.39% 19
2021
Q1 		$253M Buy
3,438,156
+266,258
+8% +$19.6M 1.38% 19
2020
Q4 		$248M Buy
3,171,898
+12,530
+0.4% +$958K 1.52% 21
2020
Q3 		$250M Buy
3,159,368
+57,703
+2% +$4.52M 1.78% 17
2020
Q2 		$229M Sell
3,101,665
-91,698
-3% -$6.9M 1.7% 19
2020
Q1 		$234M Sell
3,193,363
-827,734
-21% -$65.1M 1.96% 11
2019
Q4 		$349M Sell
4,021,097
-78,569
-2% -$6.45M 2.33% 8
2019
Q3 		$329M Buy
4,099,666
+200,953
+5% +$16.1M 2.28% 8
2019
Q2 		$312M Buy
3,898,713
+669,806
+21% +$51.3M 2.2% 6
2019
Q1 		$256M Sell
3,228,907
-491,013
-13% -$36.7M 1.84% 14
2018
Q4 		$271M Sell
3,719,920
-443,770
-11% -$31.3M 2.17% 12
2018
Q3 		$282M Buy
4,163,690
+41,407
+1% +$2.64M 1.91% 13
2018
Q2 		$239M Buy
4,122,283
+1,214,253
+42% +$68.5M 1.7% 20
2018
Q1 		$151M Buy
2,908,030
+2,389,094
+460% +$129M 0.92% 34
2017
Q4 		$27.9M Buy
518,936
+440,546
+562% +$24.4M 0.16% 93
2017
Q3 		$4.79M Buy
78,390
+71,788
+1,087% +$4.35M 0.03% 227
2017
Q2 		$404K Sell
6,602
-1,363
-17% -$83K ﹤0.01% 429
2017
Q1 		$483K Sell
7,965
-6,393
-45% -$388K ﹤0.01% 401
2016
Q4 		$807K Buy
14,358
+6,498
+83% +$380K ﹤0.01% 386
2016
Q3 		$468K Buy
+7,860
New +$460K ﹤0.01% 405
2016
Q1 		– Sell
-4,402
Closed -$222K – 608
2015
Q4 		$222K Hold
4,402
– – ﹤0.01% 514
2015
Q3 		$207K Sell
4,402
-2,410
-35% -$128K ﹤0.01% 548
2015
Q2 		$370K Sell
6,812
-2,538
-27% -$142K ﹤0.01% 408
2015
Q1 		$513K Sell
9,350
-4,297
-31% -$243K ﹤0.01% 392
2014
Q4 		$740K Sell
13,647
-110,950
-89% -$6.18M ﹤0.01% 383
2014
Q3 		$7.05M Sell
124,597
-232,741
-65% -$13.1M 0.02% 234
2014
Q2 		$19.7M Sell
357,338
-2,282,656
-86% -$125M 0.05% 142
2014
Q1 		$143M Sell
2,639,994
-7,489,278
-74% -$388M 0.37% 57
2013
Q4 		$484M Sell
10,129,272
-3,799,809
-27% -$174M 1.17% 24
2013
Q3 		$633M Buy
13,929,081
+359,443
+3% +$16.4M 1.67% 17
2013
Q2 		$601M Buy
+13,569,638
New +$606M 1.57% 19

Other funds holding MRK

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s MRK Position: Q1 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) increased its Merck (MRK) stake by 2.1% in Q1 2026, buying an estimated $16.6M and bringing the position to 7,013,777 shares worth $844M. The position accounts for 2.16% of the portfolio, ranked #15.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in MRK in Q2 2013 and has held it in 50 quarters since. 3,777 funds tracked by Wall St. Rank hold MRK as of Q1 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 7,013,777 shares of Merck worth $844M as of Q1 2026.
  • Grantham, Mayo, Van Otterloo & Co (GMO) bought 143,632 Merck shares in Q1 2026, an estimated $16.6M.
  • Merck made up 2.16% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q1 2026, its #15 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Merck in Q2 2013 and has held it in 50 quarters since.
  • 3,777 funds tracked by Wall St. Rank held Merck as of Q1 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q1 2026, filed 14 May 2026.