Ostrum Asset Management’s Merck MRK Stock Holding History

Ostrum 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 Q1	$2.35M	Sell	19,519 -38,649	-66%	-$4.46M	0.13%	116
2025 Q4	$6.12M	Sell	58,168 -18,424	-24%	-$1.73M	0.29%	46
2025 Q3	$6.43M	Buy	76,592 +2,462	+3%	+$203K	0.29%	54
2025 Q2	$5.87M	Sell	74,130 -1,799	-2%	-$143K	0.28%	61
2025 Q1	$6.82M	Buy	75,929 +17,616	+30%	+$1.64M	0.36%	44
2024 Q4	$5.8M	Buy	58,313 +9,601	+20%	+$990K	0.5%	29
2024 Q3	$5.53M	Buy	48,712 +10,072	+26%	+$1.2M	0.46%	41
2024 Q2	$4.78M	Sell	38,640 -31,605	-45%	-$4.07M	0.42%	47
2024 Q1	$9.27M	Sell	70,245 -2,611	-4%	-$322K	0.73%	12
2023 Q4	$7.94M	Buy	72,856 +28,629	+65%	+$2.97M	0.69%	13
2023 Q3	$4.55M	Sell	44,227 -5,679	-11%	-$612K	0.42%	51
2023 Q2	$5.76M	Sell	49,906 -566	-1%	-$64.3K	0.48%	41
2023 Q1	$5.37M	Buy	+50,472	New	+$5.45M	0.47%	40

Other funds holding MRK

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

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 Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Ostrum Asset Management's MRK Position: Q1 2026 in Review

Ostrum Asset Management reduced its Merck (MRK) stake by 66% in Q1 2026, selling an estimated $4.46M and leaving 19,519 shares worth $2.35M. The position accounts for 0.13% of the portfolio, ranked #116.

Ostrum Asset Management first reported a position in MRK in Q1 2023 and has held it in 13 quarters since. The position peaked at $9.27M in Q1 2024. 3,775 funds tracked by Wall St. Rank hold MRK as of Q1 2026.

Ostrum Asset Management held 19,519 shares of Merck worth $2.35M as of Q1 2026.
Ostrum Asset Management sold 38,649 Merck shares in Q1 2026, an estimated $4.46M.
Merck made up 0.13% of Ostrum Asset Management's portfolio in Q1 2026, its #116 holding.
Ostrum Asset Management first reported a position in Merck in Q1 2023 and has held it in 13 quarters since.
Ostrum Asset Management's Merck position peaked at $9.27M in Q1 2024.
3,775 funds tracked by Wall St. Rank held Merck as of Q1 2026.

Based on Ostrum Asset Management's 13F filing for Q1 2026, filed 14 May 2026.