Two Sigma Advisers’s Merck MRK Stock Holding History

Two Sigma Advisers’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	-2,320,900	Closed	-$195M	–	2523
2025 Q3	$195M	Sell	2,320,900 -3,357,700	-59%	-$277M	0.39%	63
2025 Q2	$450M	Buy	5,678,600 +2,390,000	+73%	+$190M	0.92%	23
2025 Q1	$295M	Sell	3,288,600 -1,598,500	-33%	-$149M	0.66%	33
2024 Q4	$486M	Buy	4,887,100 +623,000	+15%	+$64.2M	1.12%	14
2024 Q3	$484M	Buy	4,264,100 +2,610,800	+158%	+$310M	1.13%	14
2024 Q2	$205M	Sell	1,653,300 -432,300	-21%	-$55.7M	0.46%	49
2024 Q1	$275M	Sell	2,085,600 -2,637,300	-56%	-$325M	0.64%	30
2023 Q4	$515M	Buy	4,722,900 +3,534,202	+297%	+$367M	1.21%	7
2023 Q3	$122M	Buy	1,188,698 +1,184,798	+30,379%	+$128M	0.31%	77
2023 Q2	$450K	Sell	3,900 -57,400	-94%	-$6.52M	﹤0.01%	1850
2023 Q1	$6.52M	Sell	61,300 -471,899	-89%	-$50.9M	0.02%	704
2022 Q4	$59.2M	Sell	533,199 -2,119,100	-80%	-$217M	0.17%	135
2022 Q3	$228M	Sell	2,652,299 -1,311,700	-33%	-$117M	0.66%	26
2022 Q2	$361M	Sell	3,963,999 -1,676,300	-30%	-$149M	1.03%	11
2022 Q1	$463M	Buy	5,640,299 +939,700	+20%	+$74.1M	1.23%	6
2021 Q4	$360M	Sell	4,700,599 -1,579,700	-25%	-$126M	0.9%	18
2021 Q3	$472M	Buy	6,280,299 +801,000	+15%	+$60.9M	1.22%	5
2021 Q2	$426M	Buy	5,479,299 +1,662,274	+44%	+$124M	1.12%	6
2021 Q1	$281M	Sell	3,817,025 -1,154,267	-23%	-$85.1M	0.77%	16
2020 Q4	$388M	Buy	4,971,292 +276,882	+6%	+$21.2M	1.04%	9
2020 Q3	$372M	Sell	4,694,410 -728,884	-13%	-$57.1M	1.06%	9
2020 Q2	$400M	Buy	5,423,294 +751,521	+16%	+$56.6M	1.18%	10
2020 Q1	$343M	Sell	4,671,773 -870,888	-16%	-$68.4M	1.31%	3
2019 Q4	$481M	Buy	5,542,661 +2,977,368	+116%	+$245M	1.12%	7
2019 Q3	$206M	Buy	2,565,293 +841,858	+49%	+$67.5M	0.5%	45
2019 Q2	$138M	Buy	1,723,435 +1,212,156	+237%	+$92.8M	0.34%	68
2019 Q1	$40.6M	Sell	511,279 -1,302,036	-72%	-$97.4M	0.1%	247
2018 Q4	$132M	Buy	1,813,315 +654,581	+56%	+$46.2M	0.36%	63
2018 Q3	$78.4M	Buy	1,158,734 +942,047	+435%	+$60M	0.19%	143
2018 Q2	$12.6M	Sell	216,687 -862,504	-80%	-$48.7M	0.03%	519
2018 Q1	$56.1M	Sell	1,079,191 -418,446	-28%	-$22.6M	0.15%	181
2017 Q4	$80.4M	Sell	1,497,637 -90,345	-6%	-$5.01M	0.22%	122
2017 Q3	$97M	Buy	1,587,982 +543,230	+52%	+$32.9M	0.28%	97
2017 Q2	$63.9M	Sell	1,044,752 -1,365,713	-57%	-$83.1M	0.21%	120
2017 Q1	$146M	Buy	2,410,465 +1,055,224	+78%	+$64M	0.48%	33
2016 Q4	$76.1M	Buy	1,355,241 +660,558	+95%	+$38.7M	0.29%	91
2016 Q3	$41.4M	Buy	694,683 +288,305	+71%	+$16.9M	0.18%	134
2016 Q2	$22.3M	Buy	406,378 +261,057	+180%	+$13.9M	0.11%	216
2016 Q1	$7.34M	Sell	145,321 -1,419,892	-91%	-$69.5M	0.04%	416
2015 Q4	$78.9M	Sell	1,565,213 -247,024	-14%	-$12.5M	0.47%	55
2015 Q3	$85.4M	Buy	1,812,237 +1,636,348	+930%	+$86.9M	0.54%	41
2015 Q2	$9.55M	Sell	175,889 -1,172,313	-87%	-$65.7M	0.07%	309
2015 Q1	$73.9M	Buy	1,348,202 +350,169	+35%	+$19.8M	0.54%	33
2014 Q4	$54.1M	Buy	998,033 +539,583	+118%	+$30.1M	0.42%	45
2014 Q3	$25.9M	Buy	+458,450	New	+$25.7M	0.2%	123
2014 Q2	–	Sell	-139,648	Closed	-$7.62M	–	2602
2014 Q1	$7.57M	Buy	139,648 +79,753	+133%	+$4.13M	0.07%	310
2013 Q4	$2.86M	Sell	59,895 -480,927	-89%	-$22M	0.03%	581
2013 Q3	$24.6M	Buy	+540,822	New	+$24.7M	0.29%	67

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

Two Sigma Advisers's MRK Position: Q4 2025 in Review

Two Sigma Advisers sold out of Merck (MRK) in Q4 2025, closing a stake of 2,320,900 shares — an estimated $195M sold.

Two Sigma Advisers first reported a position in MRK in Q3 2013 and held it in 48 quarters. The position peaked at $515M in Q4 2023. 3,651 funds tracked by Wall St. Rank hold MRK as of Q4 2025.

Two Sigma Advisers reported no remaining Merck position as of Q4 2025 after selling out during the quarter.
Two Sigma Advisers sold 2,320,900 Merck shares in Q4 2025, an estimated $195M.
Two Sigma Advisers first reported a position in Merck in Q3 2013 and held it in 48 quarters.
Two Sigma Advisers's Merck position peaked at $515M in Q4 2023.
3,651 funds tracked by Wall St. Rank held Merck as of Q4 2025.

Based on Two Sigma Advisers's 13F filing for Q4 2025, filed 17 Feb 2026.