Laurion Capital Management’s Merck MRK Stock Holding History

Laurion 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
2025 Q4	–	Sell	-21,700	Closed	-$1.82M	–	375
2025 Q3	$1.82M	Hold	21,700	–	–	0.03%	163
2025 Q2	$1.72M	Hold	21,700	–	–	0.03%	171
2025 Q1	$1.95M	Sell	21,700 -600	-3%	-$56K	0.05%	147
2024 Q4	$2.22M	Hold	22,300	–	–	0.04%	180
2024 Q3	$2.53M	Hold	22,300	–	–	0.03%	146
2024 Q2	$2.76M	Hold	22,300	–	–	0.03%	194
2024 Q1	$2.94M	Hold	22,300	–	–	0.02%	302
2023 Q4	$2.43M	Hold	22,300	–	–	0.02%	282
2023 Q3	$2.3M	Sell	22,300 -209,600	-90%	-$22.6M	0.01%	327
2023 Q2	$26.8M	Buy	+231,900	New	+$26.3M	0.15%	127
2022 Q4	–	Sell	-600,000	Closed	-$51.7M	–	514
2022 Q3	$51.7M	Buy	+600,000	New	+$53.6M	0.3%	84
2022 Q2	–	Sell	-917,500	Closed	-$75.3M	–	623
2022 Q1	$75.3M	Buy	+917,500	New	+$72.3M	0.92%	22
2021 Q4	–	Sell	-1,100,000	Closed	-$82.6M	–	675
2021 Q3	$82.6M	Buy	1,100,000 +500,000	+83%	+$38M	0.35%	76
2021 Q2	$46.7M	Buy	+600,000	New	+$44.6M	0.26%	87
2021 Q1	–	Sell	-193,880	Closed	-$15.1M	–	842
2020 Q4	$15.1M	Buy	+193,880	New	+$14.8M	0.12%	152
2020 Q3	–	Sell	-1,053,554	Closed	-$77.7M	–	1041
2020 Q2	$77.7M	Buy	1,053,554 +1,022,114	+3,251%	+$76.9M	0.88%	26
2020 Q1	$2.31M	Hold	31,440	–	–	0.03%	333
2019 Q4	$2.73M	Sell	31,440 -508,280	-94%	-$41.7M	0.02%	407
2019 Q3	$43.4M	Buy	+539,720	New	+$43.3M	0.32%	68
2018 Q4	–	Sell	-71,264	Closed	-$4.82M	–	1302
2018 Q3	$4.82M	Buy	71,264 +31,440	+79%	+$2M	0.05%	361
2018 Q2	$2.31M	Hold	39,824	–	–	0.02%	560
2018 Q1	$2.07M	Sell	39,824 -57,640	-59%	-$3.11M	0.02%	619
2017 Q4	$5.23M	Hold	97,464	–	–	0.03%	505
2017 Q3	$5.96M	Hold	97,464	–	–	0.03%	456
2017 Q2	$5.96M	Hold	97,464	–	–	0.03%	455
2017 Q1	$5.91M	Buy	97,464 +89,080	+1,063%	+$5.4M	0.04%	386
2016 Q4	$471K	Sell	8,384 -145,148	-95%	-$8.49M	﹤0.01%	848
2016 Q3	$9.14M	Buy	153,532 +34,479	+29%	+$2.02M	0.09%	227
2016 Q2	$6.54M	Buy	119,053 +14,253	+14%	+$759K	0.1%	227
2016 Q1	$5.29M	Sell	104,800 -366,800	-78%	-$18M	0.08%	224
2015 Q4	$23.8M	Sell	471,600 -974,640	-67%	-$49.1M	0.22%	99
2015 Q3	$68.2M	Buy	1,446,240 +1,341,440	+1,280%	+$71.3M	0.79%	29
2015 Q2	$5.69M	Buy	+104,800	New	+$5.88M	0.05%	275
2014 Q4	–	Sell	-209,600	Closed	-$11.9M	–	392
2014 Q3	$11.9M	Buy	+209,600	New	+$11.8M	0.25%	100

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

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

Laurion Capital Management sold out of Merck (MRK) in Q1 2026, closing a stake of 19,693 shares — an estimated $2.07M sold.

Laurion Capital Management first reported a position in MRK in Q2 2015 and held it in 25 quarters. The position peaked at $285M in Q2 2021. 3,780 funds tracked by Wall St. Rank hold MRK as of Q1 2026.

Laurion Capital Management reported no remaining Merck position as of Q1 2026 after selling out during the quarter.
Laurion Capital Management sold 19,693 Merck shares in Q1 2026, an estimated $2.07M.
Laurion Capital Management first reported a position in Merck in Q2 2015 and held it in 25 quarters.
Laurion Capital Management's Merck position peaked at $285M in Q2 2021.
3,780 funds tracked by Wall St. Rank held Merck as of Q1 2026.

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