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Louisbourg Investments’s Quest Diagnostics DGX Stock Holding History

Louisbourg Investments’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 		$24.8K Buy
+117
New +$23K ﹤0.01% 156
2025
Q3 		– Sell
-136
Closed -$24.4K – 209
2025
Q2 		$24.4K Buy
+136
New +$23.6K 0.01% 141

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 $3.38T AUM 44.17% 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

Louisbourg Investments's DGX Position: Q2 2026 in Review

Louisbourg Investments opened a new position in Quest Diagnostics (DGX) in Q2 2026: 117 shares worth $24.8K. The stake represents ﹤0.01% of the portfolio and ranks #156 among its holdings. This is a return to the name: Louisbourg Investments previously reported a position in DGX as recently as Q2 2025.

Louisbourg Investments first reported a position in DGX in Q2 2025 and has held it in 2 quarters since. 1,111 funds tracked by Wall St. Rank hold DGX as of Q2 2026.

  • Louisbourg Investments held 117 shares of Quest Diagnostics worth $24.8K as of Q2 2026.
  • Quest Diagnostics was a new Louisbourg Investments position in Q2 2026.
  • Quest Diagnostics made up ﹤0.01% of Louisbourg Investments's portfolio in Q2 2026, its #156 holding.
  • Louisbourg Investments first reported a position in Quest Diagnostics in Q2 2025 and has held it in 2 quarters since.
  • 1,111 funds tracked by Wall St. Rank held Quest Diagnostics as of Q2 2026.

Based on Louisbourg Investments's 13F filing for Q2 2026, filed 23 Jul 2026.