Check Capital Management’s Quest Diagnostics DGX Stock Holding History

Check Capital Management’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 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 $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return

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

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

EIG

EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return

Check Capital Management's DGX Position: Q1 2026 in Review

Check Capital Management held its Quest Diagnostics (DGX) position steady in Q1 2026 at 1,300 shares worth $255K. The position accounts for 0.01% of the portfolio, ranked #47.

Check Capital Management first reported a position in DGX in Q3 2020 and has held it in 23 quarters since. The position peaked at $30.8M in Q4 2021. 1,063 funds tracked by Wall St. Rank hold DGX as of Q1 2026.

Check Capital Management held 1,300 shares of Quest Diagnostics worth $255K as of Q1 2026.
Check Capital Management left its Quest Diagnostics share count unchanged in Q1 2026.
Quest Diagnostics made up 0.01% of Check Capital Management's portfolio in Q1 2026, its #47 holding.
Check Capital Management first reported a position in Quest Diagnostics in Q3 2020 and has held it in 23 quarters since.
Check Capital Management's Quest Diagnostics position peaked at $30.8M in Q4 2021.
1,063 funds tracked by Wall St. Rank held Quest Diagnostics as of Q1 2026.

Based on Check Capital Management's 13F filing for Q1 2026, filed 4 May 2026.