Robeco Institutional Asset Management
MRK icon

Robeco Institutional Asset Management’s Merck MRK Stock Holding History

Robeco Institutional Asset Management’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
Q2 		$305M Buy
2,373,993
+51,700
+2% +$6.05M 0.37% 53
2026
Q1 		$279M Sell
2,322,293
-175,682
-7% -$20.3M 0.4% 58
2025
Q4 		$263M Sell
2,497,975
-508,157
-17% -$47.7M 0.37% 56
2025
Q3 		$252M Sell
3,006,132
-157,285
-5% -$13M 0.37% 65
2025
Q2 		$250M Buy
3,163,417
+556,891
+21% +$44.3M 0.4% 51
2025
Q1 		$234M Sell
2,606,526
-50,885
-2% -$4.75M 0.45% 49
2024
Q4 		$264M Sell
2,657,411
-546,267
-17% -$56.3M 0.5% 39
2024
Q3 		$364M Sell
3,203,678
-103,129
-3% -$12.3M 0.72% 22
2024
Q2 		$409M Buy
3,306,807
+378,024
+13% +$48.7M 0.88% 17
2024
Q1 		$386M Sell
2,928,783
-15,248
-0.5% -$1.88M 0.84% 17
2023
Q4 		$321M Sell
2,944,031
-204,777
-7% -$21.3M 0.78% 21
2023
Q3 		$324M Buy
3,148,808
+87,972
+3% +$9.48M 0.87% 14
2023
Q2 		$353M Sell
3,060,836
-255,374
-8% -$29M 0.93% 15
2023
Q1 		$353M Sell
3,316,210
-301,558
-8% -$32.6M 0.96% 12
2022
Q4 		$401M Sell
3,617,768
-430,359
-11% -$44M 1.16% 8
2022
Q3 		$349M Sell
4,048,127
-51,494
-1% -$4.6M 1.13% 11
2022
Q2 		$374M Buy
4,099,621
+305,247
+8% +$27.1M 1.16% 11
2022
Q1 		$311M Sell
3,794,374
-1,329,017
-26% -$105M 0.73% 27
2021
Q4 		$393M Buy
5,123,391
+791,320
+18% +$63M 0.84% 20
2021
Q3 		$325M Sell
4,332,071
-104,587
-2% -$7.95M 0.72% 30
2021
Q2 		$345M Sell
4,436,658
-280,606
-6% -$20.9M 0.76% 22
2021
Q1 		$347M Buy
4,717,264
+333,983
+8% +$24.6M 0.86% 18
2020
Q4 		$342M Buy
4,383,281
+693,135
+19% +$53M 0.9% 17
2020
Q3 		$292M Buy
3,690,146
+81,906
+2% +$6.42M 0.9% 20
2020
Q2 		$266M Sell
3,608,240
-639,195
-15% -$48.1M 0.9% 16
2020
Q1 		$312M Sell
4,247,435
-14,636
-0.3% -$1.15M 1.25% 7
2019
Q4 		$370M Buy
4,262,071
+124,929
+3% +$10.3M 1.18% 6
2019
Q3 		$332M Sell
4,137,142
-61,837
-1% -$4.96M 1.17% 7
2019
Q2 		$336M Buy
4,198,979
+180,683
+4% +$13.8M 1.19% 7
2019
Q1 		$319M Buy
4,018,296
+743,849
+23% +$55.6M 1.17% 7
2018
Q4 		$239M Buy
3,274,447
+712,996
+28% +$50.3M 1.07% 10
2018
Q3 		$173M Buy
2,561,451
+137,368
+6% +$8.75M 0.69% 23
2018
Q2 		$140M Sell
2,424,083
-70,056
-3% -$3.95M 0.64% 27
2018
Q1 		$130M Buy
2,494,139
+85,404
+4% +$4.61M 0.61% 29
2017
Q4 		$129M Buy
2,408,735
+291,133
+14% +$16.1M 0.67% 31
2017
Q3 		$129M Sell
2,117,602
-7,698
-0.4% -$467K 0.8% 24
2017
Q2 		$130M Buy
2,125,300
+60,929
+3% +$3.71M 0.84% 19
2017
Q1 		$125M Buy
2,064,371
+115,994
+6% +$7.04M 0.83% 20
2016
Q4 		$109M Buy
1,948,377
+843,382
+76% +$49.4M 0.86% 18
2016
Q3 		$65.8M Buy
1,104,995
+434,797
+65% +$25.4M 0.49% 56
2016
Q2 		$36.8M Buy
670,198
+13,493
+2% +$718K 0.28% 116
2016
Q1 		$33.2M Buy
656,705
+5,382
+0.8% +$264K 0.27% 121
2015
Q4 		$32.8M Sell
651,323
-1,161,693
-64% -$58.6M 0.28% 120
2015
Q3 		$85.4M Buy
1,813,016
+70,732
+4% +$3.76M 0.65% 28
2015
Q2 		$94.6M Sell
1,742,284
-71,713
-4% -$4.02M 0.72% 24
2015
Q1 		$99.5M Buy
1,813,997
+1,135,033
+167% +$64.3M 0.75% 25
2014
Q4 		$36.8M Buy
678,964
+144,004
+27% +$8.02M 0.26% 106
2014
Q3 		$30.3M Buy
534,960
+146,773
+38% +$8.24M 0.22% 110
2014
Q2 		$21.4M Buy
388,187
+89,454
+30% +$4.88M 0.15% 168
2014
Q1 		$16.2M Buy
298,733
+17,626
+6% +$913K 0.12% 196
2013
Q4 		$13.4M Buy
281,107
+33,054
+13% +$1.51M 0.11% 205
2013
Q3 		$11.3M Buy
248,053
+11,082
+5% +$506K 0.11% 187
2013
Q2 		$10.5M Buy
+236,971
New +$10.6M 0.11% 188

Other funds holding MRK

LMFP
Larry Mathis Financial Planning Phoenix, Arizona $124B AUM
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return
Mirae Asset Global Investments
Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return
Handelsbanken Fonder
Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return
Wealth Enhancement Advisory Services
Wealth Enhancement Advisory Services Plymouth, Minnesota $59.8B AUM 29.42% 1-Year Est. Return
AAMU
AEGON Asset Management (UK) Edinburgh, United Kingdom $9.38B AUM 48.94% 1-Year Est. Return
CRM
Cardano Risk Management Rotterdam, Netherlands $13B AUM 49.44% 1-Year Est. Return
SP
Sarasin & Partners London, United Kingdom $8.54B AUM 9.6% 1-Year Est. Return
ORIO
Old Republic International (ORI) Chicago, Illinois $2.67B AUM 26.94% 1-Year Est. Return

Robeco Institutional Asset Management's MRK Position: Q2 2026 in Review

Robeco Institutional Asset Management increased its Merck (MRK) stake by 2.2% in Q2 2026, buying an estimated $6.05M and bringing the position to 2,373,993 shares worth $305M. The position accounts for 0.37% of the portfolio, ranked #53.

Robeco Institutional Asset Management first reported a position in MRK in Q2 2013 and has held it in 53 quarters since. The position peaked at $409M in Q2 2024. 1,038 funds tracked by Wall St. Rank hold MRK as of Q2 2026.

  • Robeco Institutional Asset Management held 2,373,993 shares of Merck worth $305M as of Q2 2026.
  • Robeco Institutional Asset Management bought 51,700 Merck shares in Q2 2026, an estimated $6.05M.
  • Merck made up 0.37% of Robeco Institutional Asset Management's portfolio in Q2 2026, its #53 holding.
  • Robeco Institutional Asset Management first reported a position in Merck in Q2 2013 and has held it in 53 quarters since.
  • Robeco Institutional Asset Management's Merck position peaked at $409M in Q2 2024.
  • 1,038 funds tracked by Wall St. Rank held Merck as of Q2 2026.

Based on Robeco Institutional Asset Management's 13F filing for Q2 2026, filed 21 Jul 2026.