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Costello Asset Management’s Quest Diagnostics DGX Stock Holding History

Costello Asset 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
Q2 		$21.2K Hold
100
– – 0.01% 395
2026
Q1 		$19.6K Hold
100
– – 0.01% 389
2025
Q4 		$17.4K Hold
100
– – 0.01% 397
2025
Q3 		$19.1K Hold
100
– – 0.01% 378
2025
Q2 		$18K Hold
100
– – 0.01% 389
2025
Q1 		$16.9K Buy
+100
New +$16.4K 0.01% 369

Other funds holding DGX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
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

Costello Asset Management's DGX Position: Q2 2026 in Review

Costello Asset Management held its Quest Diagnostics (DGX) position steady in Q2 2026 at 100 shares worth $21.2K. The position accounts for 0.01% of the portfolio, ranked #395.

Costello Asset Management first reported a position in DGX in Q1 2025 and has held it in 6 quarters since. 1,107 funds tracked by Wall St. Rank hold DGX as of Q2 2026.

  • Costello Asset Management held 100 shares of Quest Diagnostics worth $21.2K as of Q2 2026.
  • Costello Asset Management left its Quest Diagnostics share count unchanged in Q2 2026.
  • Quest Diagnostics made up 0.01% of Costello Asset Management's portfolio in Q2 2026, its #395 holding.
  • Costello Asset Management first reported a position in Quest Diagnostics in Q1 2025 and has held it in 6 quarters since.
  • 1,107 funds tracked by Wall St. Rank held Quest Diagnostics as of Q2 2026.

Based on Costello Asset Management's 13F filing for Q2 2026, filed 28 Jul 2026.