Osterweis Capital Management’s Merck MRK Stock Holding History

Osterweis 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 Q1	$503K	Sell	4,183 -248	-6%	-$28.6K	0.03%	106
2025 Q4	$466K	Buy	4,431 +248	+6%	+$23.3K	0.02%	114
2025 Q3	$351K	Sell	4,183 -498	-11%	-$41K	0.02%	123
2025 Q2	$371K	Buy	4,681 +463	+11%	+$36.8K	0.02%	120
2025 Q1	$379K	Buy	4,218 +35	+0.8%	+$3.27K	0.02%	111
2024 Q4	$416K	Hold	4,183	–	–	0.02%	117
2024 Q3	$475K	Sell	4,183 -620	-13%	-$73.7K	0.02%	115
2024 Q2	$595K	Hold	4,803	–	–	0.03%	112
2024 Q1	$634K	Sell	4,803 -749	-13%	-$92.3K	0.04%	105
2023 Q4	$605K	Sell	5,552 -95	-2%	-$9.86K	0.04%	108
2023 Q3	$581K	Hold	5,647	–	–	0.04%	106
2023 Q2	$652K	Sell	5,647 -85	-1%	-$9.65K	0.04%	109
2023 Q1	$610K	Hold	5,732	–	–	0.04%	110
2022 Q4	$636K	Buy	5,732 +654	+13%	+$66.8K	0.05%	111
2022 Q3	$437K	Hold	5,078	–	–	0.03%	116
2022 Q2	$463K	Buy	5,078 +428	+9%	+$37.9K	0.03%	118
2022 Q1	$382K	Sell	4,650 -428	-8%	-$33.7K	0.02%	127
2021 Q4	$389K	Buy	5,078 +428	+9%	+$34.1K	0.02%	123
2021 Q3	$349K	Sell	4,650 -558	-11%	-$42.4K	0.02%	124
2021 Q2	$405K	Sell	5,208 -250	-5%	-$18.6K	0.02%	122
2021 Q1	$401K	Sell	5,458 -483	-8%	-$35.6K	0.02%	116
2020 Q4	$464K	Buy	5,941 +770	+15%	+$58.9K	0.03%	105
2020 Q3	$409K	Sell	5,171 -7,310	-59%	-$573K	0.03%	105
2020 Q2	$921K	Sell	12,481 -63	-0.5%	-$4.74K	0.07%	98
2020 Q1	$921K	Sell	12,544 -277	-2%	-$21.8K	0.07%	96
2019 Q4	$1.11M	Hold	12,821	–	–	0.08%	93
2019 Q3	$1.03M	Buy	12,821 +478	+4%	+$38.3K	0.08%	91
2019 Q2	$988K	Hold	12,343	–	–	0.07%	89
2019 Q1	$979K	Buy	12,343 +820	+7%	+$61.3K	0.06%	92
2018 Q4	$840K	Sell	11,523 -820	-7%	-$57.9K	0.06%	87
2018 Q3	$836K	Buy	12,343 +277	+2%	+$17.6K	0.05%	95
2018 Q2	$699K	Hold	12,066	–	–	0.05%	96
2018 Q1	$628K	Hold	12,066	–	–	0.04%	95
2017 Q4	$647K	Sell	12,066 -254	-2%	-$14.1K	0.05%	92
2017 Q3	$752K	Hold	12,320	–	–	0.06%	89
2017 Q2	$754K	Hold	12,320	–	–	0.06%	88
2017 Q1	$748K	Hold	12,320	–	–	0.06%	83
2016 Q4	$692K	Sell	12,320 -383	-3%	-$22.4K	0.05%	77
2016 Q3	$756K	Hold	12,703	–	–	0.05%	76
2016 Q2	$698K	Buy	12,703 +821	+7%	+$43.7K	0.04%	72
2016 Q1	$600K	Hold	11,882	–	–	0.03%	71
2015 Q4	$599K	Sell	11,882 -821	-6%	-$41.4K	0.06%	40
2015 Q3	$598K	Hold	12,703	–	–	0.03%	51
2015 Q2	$691K	Hold	12,703	–	–	0.02%	55
2015 Q1	$697K	Hold	12,703	–	–	0.02%	53
2014 Q4	$688K	Hold	12,703	–	–	0.02%	57
2014 Q3	$718K	Hold	12,703	–	–	0.02%	54
2014 Q2	$701K	Sell	12,703 -541	-4%	-$29.5K	0.02%	53
2014 Q1	$717K	Hold	13,244	–	–	0.02%	55
2013 Q4	$632K	Buy	13,244 +821	+7%	+$37.5K	0.02%	60
2013 Q3	$534K	Sell	12,423 -821	-6%	-$37.5K	0.02%	60
2013 Q2	$586K	Buy	+13,244	New	+$592K	0.02%	56

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

Osterweis Capital Management's MRK Position: Q1 2026 in Review

Osterweis Capital Management reduced its Merck (MRK) stake by 5.6% in Q1 2026, selling an estimated $28.6K and leaving 4,183 shares worth $503K. The position accounts for 0.03% of the portfolio, ranked #106.

Osterweis Capital Management first reported a position in MRK in Q2 2013 and has held it in 52 quarters since. The position peaked at $1.11M in Q4 2019. 3,780 funds tracked by Wall St. Rank hold MRK as of Q1 2026.

Osterweis Capital Management held 4,183 shares of Merck worth $503K as of Q1 2026.
Osterweis Capital Management sold 248 Merck shares in Q1 2026, an estimated $28.6K.
Merck made up 0.03% of Osterweis Capital Management's portfolio in Q1 2026, its #106 holding.
Osterweis Capital Management first reported a position in Merck in Q2 2013 and has held it in 52 quarters since.
Osterweis Capital Management's Merck position peaked at $1.11M in Q4 2019.
3,780 funds tracked by Wall St. Rank held Merck as of Q1 2026.

Based on Osterweis Capital Management's 13F filing for Q1 2026, filed 15 May 2026.