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Samlyn Capital’s Merck MRK Stock Holding History

Samlyn Capital’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 		$72.7M Sell
565,755
-160,726
-22% -$18.8M 1.18% 26
2026
Q1 		$87.4M Buy
+726,481
New +$83.9M 1.49% 21
2024
Q4 		– Sell
-301,780
Closed -$34.3M – 112
2024
Q3 		$34.3M Buy
301,780
+51,878
+21% +$6.16M 0.52% 62
2024
Q2 		$30.9M Sell
249,902
-190,792
-43% -$24.6M 0.52% 55
2024
Q1 		$58.1M Sell
440,694
-105,907
-19% -$13.1M 0.97% 35
2023
Q4 		$59.6M Buy
+546,601
New +$56.7M 1.19% 26
2021
Q4 		– Sell
-928,898
Closed -$69.8M – 152
2021
Q3 		$69.8M Buy
928,898
+46,135
+5% +$3.51M 0.93% 31
2021
Q2 		$68.7M Sell
882,763
-749,657
-46% -$55.8M 1.01% 31
2021
Q1 		$120M Sell
1,632,420
-242,988
-13% -$17.9M 1.66% 18
2020
Q4 		$146M Buy
1,875,408
+642,203
+52% +$49.1M 2.1% 11
2020
Q3 		$97.6M Buy
+1,233,205
New +$96.6M 1.76% 14
2019
Q1 		– Sell
-382,539
Closed -$27.9M – 123
2018
Q4 		$27.9M Sell
382,539
-822,700
-68% -$58.1M 0.66% 48
2018
Q3 		$81.6M Sell
1,205,239
-1,380,017
-53% -$87.9M 1.85% 10
2018
Q2 		$150M Buy
2,585,256
+1,211,028
+88% +$68.3M 3.5% 1
2018
Q1 		$71.4M Buy
1,374,228
+916,231
+200% +$49.5M 1.57% 19
2017
Q4 		$24.6M Buy
+457,997
New +$25.4M 0.56% 68
2017
Q1 		– Sell
-622,512
Closed -$35M – 155
2016
Q4 		$35M Buy
622,512
+66,653
+12% +$3.9M 0.79% 53
2016
Q3 		$33.1M Sell
555,859
-110,730
-17% -$6.48M 0.79% 45
2016
Q2 		$36.6M Buy
666,589
+2,157
+0.3% +$115K 0.87% 45
2016
Q1 		$33.5M Buy
+664,432
New +$32.5M 0.72% 54
2014
Q2 		– Sell
-562,357
Closed -$30.5M – 100
2014
Q1 		$30.5M Sell
562,357
-385,769
-41% -$20M 0.71% 57
2013
Q4 		$45.3M Buy
+948,126
New +$43.3M 1.13% 34

Other funds holding MRK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Samlyn Capital's MRK Position: Q2 2026 in Review

Samlyn Capital reduced its Merck (MRK) stake by 22% in Q2 2026, selling an estimated $18.8M and leaving 565,755 shares worth $72.7M. The position accounts for 1.18% of the portfolio, ranked #26.

Samlyn Capital first reported a position in MRK in Q4 2013 and has held it in 22 quarters since. The position peaked at $150M in Q2 2018. 3,832 funds tracked by Wall St. Rank hold MRK as of Q2 2026.

  • Samlyn Capital held 565,755 shares of Merck worth $72.7M as of Q2 2026.
  • Samlyn Capital sold 160,726 Merck shares in Q2 2026, an estimated $18.8M.
  • Merck made up 1.18% of Samlyn Capital's portfolio in Q2 2026, its #26 holding.
  • Samlyn Capital first reported a position in Merck in Q4 2013 and has held it in 22 quarters since.
  • Samlyn Capital's Merck position peaked at $150M in Q2 2018.
  • 3,832 funds tracked by Wall St. Rank held Merck as of Q2 2026.

Based on Samlyn Capital's 13F filing for Q2 2026, filed 14 Aug 2026.