Quest Diagnostics Inc
DGX- Exchange
- NYSE
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001022079
In the last 90 days, Quest Diagnostics Inc insiders filed 0 open-market purchases and 3 sales; 1,112 institutions reported holding it in 13F filings for Q2 2026, worth $22.2B in total; no superinvestor holds it.
Superinvestors holding DGX, Q2 2026
No superinvestor reported holding DGX in Q2 2026.
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of DGX each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
0 superinvestors holding at quarter end
- Sold out
- Maverick Capital
Q1 2026
1 superinvestor holding at quarter end
- Reduced
- Maverick Capital (−88.5%)
Q4 2025
1 superinvestor holding at quarter end
- Added
- Maverick Capital (+31.5%)
Q3 2025
1 superinvestor holding at quarter end
Q3 2023
0 superinvestors holding at quarter end
- Sold out
- Maverick Capital
Q2 2023
1 superinvestor holding at quarter end
- Added
- Maverick Capital (+45.2%)
Q1 2023
1 superinvestor holding at quarter end
Q2 2021
0 superinvestors holding at quarter end
- Sold out
- Maverick Capital