Steven Check’s Quest Diagnostics DGX Stock Holding History

Steven Check’s Portfolio DGX Stock Details DGX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$276K	Hold	1,300	–	–	﹤0.01%	45
2026 Q1	$255K	Hold	1,300	–	–	0.01%	47
2025 Q4	$226K	Hold	1,300	–	–	0.01%	47
2025 Q3	$248K	Hold	1,300	–	–	0.01%	46
2025 Q2	$234K	Hold	1,300	–	–	0.01%	48
2025 Q1	$220K	Sell	1,300 -135	-9%	-$22.2K	0.01%	47
2024 Q4	$216K	Hold	1,435	–	–	0.01%	45
2024 Q3	$223K	Sell	1,435 -488	-25%	-$72.9K	0.01%	47
2024 Q2	$263K	Sell	1,923 -133,522	-99%	-$18.3M	0.01%	39
2024 Q1	$18M	Sell	135,445 -13,707	-9%	-$1.78M	0.59%	15
2023 Q4	$20.6M	Sell	149,152 -18,578	-11%	-$2.44M	0.75%	14
2023 Q3	$20.4M	Sell	167,730 -10,356	-6%	-$1.38M	0.78%	14
2023 Q2	$25M	Sell	178,086 -4,790	-3%	-$660K	0.99%	12
2023 Q1	$25.9M	Buy	182,876 +3,676	+2%	+$526K	1.15%	12
2022 Q4	$28M	Buy	179,200 +493	+0.3%	+$70.8K	1.35%	12
2022 Q3	$21.9M	Buy	178,707 +569	+0.3%	+$74.9K	1.17%	15
2022 Q2	$23.7M	Sell	178,138 -1,265	-0.7%	-$172K	1.18%	13
2022 Q1	$24.6M	Buy	179,403 +1,229	+0.7%	+$171K	0.96%	16
2021 Q4	$30.8M	Sell	178,174 -542	-0.3%	-$82.5K	1.29%	14
2021 Q3	$26M	Sell	178,716 -2,762	-2%	-$404K	1.21%	16
2021 Q2	$23.9M	Buy	181,478 +14,938	+9%	+$1.96M	1.08%	17
2021 Q1	$21.4M	Sell	166,540 -999	-0.6%	-$123K	1.04%	19
2020 Q4	$20M	Sell	167,539 -5,614	-3%	-$684K	1.09%	18
2020 Q3	$19.8M	Buy	+173,153	New	+$20.5M	1.21%	15

Other funds holding DGX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

EIG

EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return

Steven Check's DGX Position: Q2 2026 in Review

Steven Check held its Quest Diagnostics (DGX) position steady in Q2 2026 at 1,300 shares worth $276K. The position accounts for ﹤0.01% of the portfolio, ranked #45.

Steven Check first reported a position in DGX in Q3 2020 and has held it in 24 quarters since. The position peaked at $30.8M in Q4 2021. 1,100 funds tracked by Wall St. Rank hold DGX as of Q2 2026.

Steven Check held 1,300 shares of Quest Diagnostics worth $276K as of Q2 2026.
Steven Check left its Quest Diagnostics share count unchanged in Q2 2026.
Quest Diagnostics made up ﹤0.01% of Steven Check's portfolio in Q2 2026, its #45 holding.
Steven Check first reported a position in Quest Diagnostics in Q3 2020 and has held it in 24 quarters since.
Steven Check's Quest Diagnostics position peaked at $30.8M in Q4 2021.
1,100 funds tracked by Wall St. Rank held Quest Diagnostics as of Q2 2026.

Based on Check Capital Management's 13F filing for Q2 2026, filed 3 Aug 2026.