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CSS LLC’s Merck MRK Stock Holding History

CSS LLC’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 		$1.67M Sell
13,865
-2,060
-13% -$238K 0.08% 192
2025
Q4 		$1.68M Sell
15,925
-1,730
-10% -$162K 0.07% 189
2025
Q3 		$1.48M Sell
17,655
-5,310
-23% -$437K 0.07% 226
2025
Q2 		$1.82M Buy
22,965
+5,190
+29% +$413K 0.08% 188
2025
Q1 		$1.6M Buy
17,775
+1,730
+11% +$162K 0.09% 177
2024
Q4 		$1.6M Buy
16,045
+4,840
+43% +$499K 0.07% 220
2024
Q3 		$1.27M Buy
11,205
+4,505
+67% +$535K 0.06% 247
2024
Q2 		$829K Sell
6,700
-1,988
-23% -$256K 0.04% 334
2024
Q1 		$1.15M Sell
8,688
-1,000
-10% -$123K 0.07% 241
2023
Q4 		$1.06M Buy
9,688
+3,500
+57% +$363K 0.06% 232
2023
Q3 		$637K Buy
6,188
+2,188
+55% +$236K 0.04% 327
2023
Q2 		$462K Sell
4,000
-500
-11% -$56.8K 0.03% 430
2023
Q1 		$479K Buy
4,500
+1,001
+29% +$108K 0.03% 328
2022
Q4 		$388K Sell
3,499
-4,001
-53% -$409K 0.02% 451
2022
Q3 		$646K Buy
+7,500
New +$670K 0.03% 453
2022
Q2 		– Sell
-5,000
Closed -$443K – 1178
2022
Q1 		$410K Sell
5,000
-2,000
-29% -$158K 0.01% 665
2021
Q4 		$536K Buy
+7,000
New +$558K 0.02% 641
2020
Q4 		– Sell
-22,514
Closed -$1.78M – 901
2020
Q3 		$1.78M Buy
+22,514
New +$1.76M 0.08% 195
2020
Q2 		– Sell
-820
Closed -$60K – 737
2020
Q1 		$60K Buy
+820
New +$64.4K ﹤0.01% 524
2019
Q3 		– Sell
-1,677
Closed -$134K – 733
2019
Q2 		$134K Buy
+1,677
New +$128K 0.01% 530

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

CSS LLC's MRK Position: Q1 2026 in Review

CSS LLC reduced its Merck (MRK) stake by 13% in Q1 2026, selling an estimated $238K and leaving 13,865 shares worth $1.67M. The position accounts for 0.08% of the portfolio, ranked #192.

CSS LLC first reported a position in MRK in Q2 2019 and has held it in 20 quarters since. The position peaked at $1.82M in Q2 2025. 3,778 funds tracked by Wall St. Rank hold MRK as of Q1 2026.

  • CSS LLC held 13,865 shares of Merck worth $1.67M as of Q1 2026.
  • CSS LLC sold 2,060 Merck shares in Q1 2026, an estimated $238K.
  • Merck made up 0.08% of CSS LLC's portfolio in Q1 2026, its #192 holding.
  • CSS LLC first reported a position in Merck in Q2 2019 and has held it in 20 quarters since.
  • CSS LLC's Merck position peaked at $1.82M in Q2 2025.
  • 3,778 funds tracked by Wall St. Rank held Merck as of Q1 2026.

Based on CSS LLC's 13F filing for Q1 2026, filed 15 May 2026.