Magnetar Financial’s Merck MRK Stock Holding History

Magnetar Financial’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
2025 Q4	–	Sell	-7,366	Closed	-$618K	–	1120
2025 Q3	$618K	Sell	7,366 -29,230	-80%	-$2.41M	﹤0.01%	556
2025 Q2	$2.9M	Buy	36,596 +28,172	+334%	+$2.24M	0.01%	304
2025 Q1	$756K	Buy	+8,424	New	+$787K	0.01%	382
2024 Q4	–	Sell	-30,113	Closed	-$3.42M	–	725
2024 Q3	$3.42M	Sell	30,113 -402,986	-93%	-$47.9M	0.07%	188
2024 Q2	$53.6M	Buy	433,099 +229,927	+113%	+$29.6M	1.12%	30
2024 Q1	$26.8M	Sell	203,172 -1,193,315	-85%	-$147M	0.6%	60
2023 Q4	$152M	Buy	1,396,487 +109,719	+9%	+$11.4M	3.87%	2
2023 Q3	$132M	Buy	1,286,768 +632,837	+97%	+$68.2M	3.38%	1
2023 Q2	$75.5M	Sell	653,931 -166,732	-20%	-$18.9M	1.65%	13
2023 Q1	$87.3M	Buy	820,663 +322,435	+65%	+$34.8M	1.7%	10
2022 Q4	$55.3M	Sell	498,228 -273,261	-35%	-$27.9M	0.94%	22
2022 Q3	$66.4M	Buy	771,489 +260,205	+51%	+$23.2M	0.92%	17
2022 Q2	$46.6K	Sell	511,284 -63,464	-11%	-$5.63M	0.48%	35
2022 Q1	$47.2M	Buy	574,748 +510,484	+794%	+$40.2M	0.5%	34
2021 Q4	$4.92M	Buy	+64,264	New	+$5.12M	0.05%	387
2021 Q3	–	Sell	-160,381	Closed	-$12.5K	–	1443
2021 Q2	$12.5K	Sell	160,381 -431,447	-73%	-$32.1M	0.12%	174
2021 Q1	$43.5M	Buy	591,828 +173,463	+41%	+$12.8M	0.42%	40
2020 Q4	$32.7M	Buy	418,365 +239,264	+134%	+$18.3M	0.46%	40
2020 Q3	$14.2M	Buy	179,101 +137,181	+327%	+$10.7M	0.25%	103
2020 Q2	$3.09M	Sell	41,920 -48,726	-54%	-$3.67M	0.09%	140
2020 Q1	$6.66M	Sell	90,646 -233,319	-72%	-$18.3M	0.16%	106
2019 Q4	$28.1M	Buy	323,965 +94,977	+41%	+$7.8M	0.59%	35
2019 Q3	$18.4M	Buy	+228,988	New	+$18.4M	0.47%	41
2019 Q2	–	Sell	-27,248	Closed	-$2.16M	–	516
2019 Q1	$2.16M	Sell	27,248 -135,192	-83%	-$10.1M	0.06%	96
2018 Q4	$11.8M	Buy	162,440 +22,786	+16%	+$1.61M	0.29%	45
2018 Q3	$9.45M	Buy	139,654 +123,934	+788%	+$7.9M	0.17%	61
2018 Q2	$911K	Buy	+15,720	New	+$887K	0.01%	157
2018 Q1	–	Sell	-4,322	Closed	-$232K	–	721
2017 Q4	$232K	Sell	4,322 -18,108	-81%	-$1M	﹤0.01%	581
2017 Q3	$1.37M	Sell	22,430 -29,877	-57%	-$1.81M	0.02%	201
2017 Q2	$3.2M	Buy	52,307 +23,468	+81%	+$1.43M	0.05%	165
2017 Q1	$1.75M	Buy	+28,839	New	+$1.75M	0.02%	205
2016 Q4	–	Sell	-25,361	Closed	-$1.51M	–	253
2016 Q3	$1.51M	Buy	+25,361	New	+$1.48M	0.02%	213
2015 Q2	–	Sell	-38,893	Closed	-$2.13M	–	451
2015 Q1	$2.13M	Buy	+38,893	New	+$2.2M	0.04%	163
2014 Q4	–	Sell	-25,287	Closed	-$1.43M	–	211
2014 Q3	$1.43M	Buy	+25,287	New	+$1.42M	0.02%	154

Other funds holding MRK

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

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

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 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

Norges Bank Oslo, Norway $935B AUM

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

Magnetar Financial's MRK Position: Q4 2025 in Review

Magnetar Financial sold out of Merck (MRK) in Q4 2025, closing a stake of 7,366 shares — an estimated $618K sold.

Magnetar Financial first reported a position in MRK in Q3 2014 and held it in 34 quarters. The position peaked at $152M in Q4 2023. 3,651 funds tracked by Wall St. Rank hold MRK as of Q4 2025.

Magnetar Financial reported no remaining Merck position as of Q4 2025 after selling out during the quarter.
Magnetar Financial sold 7,366 Merck shares in Q4 2025, an estimated $618K.
Magnetar Financial first reported a position in Merck in Q3 2014 and held it in 34 quarters.
Magnetar Financial's Merck position peaked at $152M in Q4 2023.
3,651 funds tracked by Wall St. Rank held Merck as of Q4 2025.

Based on Magnetar Financial's 13F filing for Q4 2025, filed 17 Feb 2026.