Quest Diagnostics Incorporated

Historical 13F Holders

Symbol
DGX
CUSIP
74834L100
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 74834L100 since 12/18/2024, newest first.

Filer % of Class Filed
Price T Rowe Associates Inc /MD/ 13G/A Amendment 2 4.9% 8/14/2026
Event 6/30/2026
Vanguard Capital Management LLC 13G 7.5% 4/30/2026
Event 3/31/2026
Vanguard Portfolio Management LLC 13G 5.5% 4/29/2026
Event 3/31/2026
Vanguard Group Inc 13G/A Amendment 13 0% 3/27/2026
Event 3/13/2026
Price T Rowe Associates Inc /MD/ 13G/A Amendment 1 6.5% 8/14/2025
Event 6/30/2025
Price T Rowe Associates Inc /MD/ 13G 5.4% 5/14/2025
Event 3/31/2025
BlackRock, Inc. 13G/A Amendment 16 8.4% 4/17/2025
Event 3/31/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 126 1.55 M $358 M
2026 Q2 1,141 142 M $22.3 B
2026 Q1 1,091 103 M $20.1 B
2025 Q4 1,081 107 M $18.4 B
2025 Q3 1,042 109 M $20.8 B
2025 Q2 1,031 109 M $19.5 B
2025 Q1 1,009 104 M $17.5 B
2024 Q4 936 99.6 M $15.0 B
2024 Q3 887 101 M $15.5 B
2024 Q2 885 101 M $13.8 B
2024 Q1 862 105 M $14.0 B
2023 Q4 870 102 M $14.1 B
2023 Q3 841 98.7 M $12.0 B
2023 Q2 860 100 M $14.0 B
2023 Q1 873 105 M $14.3 B
2022 Q4 922 105 M $16.5 B
2022 Q3 841 104 M $12.7 B
2022 Q2 885 104 M $13.8 B
2022 Q1 892 106 M $14.5 B
2021 Q4 946 104 M $18.0 B
2021 Q3 879 110 M $15.9 B
2021 Q2 858 114 M $15.2 B
2021 Q1 852 116 M $15.0 B
2020 Q4 857 119 M $14.5 B
2020 Q3 803 118 M $13.5 B
2020 Q2 795 119 M $13.6 B
2020 Q1 751 125 M $9.98 B
2019 Q4 758 124 M $13.3 B
2019 Q3 715 121 M $12.9 B
2019 Q2 705 140 M $15.1 B
2019 Q1 696 126 M $11.4 B
2018 Q4 657 124 M $10.3 B
2018 Q3 715 126 M $13.6 B
2018 Q2 694 122 M $13.3 B
2018 Q1 678 121 M $12.1 B
2017 Q4 662 124 M $12.1 B
2017 Q3 652 123 M $11.5 B
2017 Q2 663 120 M $13.4 B
2017 Q1 644 127 M $12.5 B
2016 Q4 631 123 M $11.3 B
2016 Q3 595 123 M $10.4 B
2016 Q2 593 138 M $11.3 B
2016 Q1 583 134 M $9.39 B
2015 Q4 576 134 M $9.55 B
2015 Q3 569 133 M $8.17 B
2015 Q2 574 134 M $9.73 B
2015 Q1 589 140 M $10.7 B
2014 Q4 558 146 M $12.2 B
2014 Q3 522 147 M $8.92 B
2014 Q2 535 151 M $8.86 B
2014 Q1 526 151 M $8.75 B