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
2022 Q3	–	Sell	-25,000	Closed	-$2.28M	–	1128
2022 Q2	$2.28M	Buy	+25,000	New	+$2.22M	0.09%	264
2020 Q4	–	Sell	-78,390	Closed	-$6.2M	–	900
2020 Q3	$6.2M	Buy	+78,390	New	+$6.14M	0.29%	72

Other funds holding MRK

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

CSS LLC's MRK Position: Q2 2026 in Review

CSS LLC reduced its Merck (MRK) stake by 26% in Q2 2026, selling an estimated $428K and leaving 10,210 shares worth $1.31M. The position accounts for 0.05% of the portfolio, ranked #265.

CSS LLC first reported a position in MRK in Q2 2019 and has held it in 21 quarters since. The position peaked at $1.82M in Q2 2025. 3,844 funds tracked by Wall St. Rank hold MRK as of Q2 2026.

CSS LLC held 10,210 shares of Merck worth $1.31M as of Q2 2026.
CSS LLC sold 3,655 Merck shares in Q2 2026, an estimated $428K.
Merck made up 0.05% of CSS LLC's portfolio in Q2 2026, its #265 holding.
CSS LLC first reported a position in Merck in Q2 2019 and has held it in 21 quarters since.
CSS LLC's Merck position peaked at $1.82M in Q2 2025.
3,844 funds tracked by Wall St. Rank held Merck as of Q2 2026.

Based on CSS LLC's 13F filing for Q2 2026, filed 14 Aug 2026.