Mainstay Capital Management’s Merck MRK Stock Holding History

Mainstay Capital 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	$441K	Buy	3,434 +20	+0.6%	+$2.34K	0.03%	101
2026 Q1	$411K	Hold	3,414	–	–	0.03%	104
2025 Q4	$359K	Hold	3,414	–	–	0.03%	102
2025 Q3	$287K	Sell	3,414 -3,292	-49%	-$271K	0.03%	100
2025 Q2	$531K	Buy	6,706 +3,655	+120%	+$291K	0.03%	92
2025 Q1	$274K	Buy	3,051 +16	+0.5%	+$1.49K	0.04%	88
2024 Q4	$302K	Buy	3,035 +7	+0.2%	+$722	0.05%	81
2024 Q3	$344K	Buy	3,028 +6	+0.2%	+$713	0.06%	76
2024 Q2	$374K	Buy	3,022 +4	+0.1%	+$515	0.07%	73
2024 Q1	$398K	Buy	3,018 +6	+0.2%	+$740	0.08%	71
2023 Q4	$328K	Buy	3,012 +209	+7%	+$21.7K	0.06%	83
2023 Q3	$289K	Buy	+2,803	New	+$302K	0.06%	81
2018 Q4	–	Sell	-436	Closed	-$30K	–	276
2018 Q3	$30K	Sell	436 -105	-19%	-$6.69K	0.02%	253
2018 Q2	$31K	Buy	541 +211	+64%	+$11.9K	0.02%	226
2018 Q1	$17K	Buy	330 +243	+279%	+$13.1K	0.01%	216
2017 Q4	$5K	Buy	+87	New	+$4.82K	﹤0.01%	294

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

Mainstay Capital Management's MRK Position: Q2 2026 in Review

Mainstay Capital Management increased its Merck (MRK) stake by 0.59% in Q2 2026, buying an estimated $2.34K and bringing the position to 3,434 shares worth $441K. The position accounts for 0.03% of the portfolio, ranked #101.

Mainstay Capital Management first reported a position in MRK in Q4 2017 and has held it in 16 quarters since. The position peaked at $531K in Q2 2025. 3,841 funds tracked by Wall St. Rank hold MRK as of Q2 2026.

Mainstay Capital Management held 3,434 shares of Merck worth $441K as of Q2 2026.
Mainstay Capital Management bought 20 Merck shares in Q2 2026, an estimated $2.34K.
Merck made up 0.03% of Mainstay Capital Management's portfolio in Q2 2026, its #101 holding.
Mainstay Capital Management first reported a position in Merck in Q4 2017 and has held it in 16 quarters since.
Mainstay Capital Management's Merck position peaked at $531K in Q2 2025.
3,841 funds tracked by Wall St. Rank held Merck as of Q2 2026.

Based on Mainstay Capital Management's 13F filing for Q2 2026, filed 12 Aug 2026.