| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 8.4% | $1,644,681,434 | 9,308,815 | BlackRock, Inc. | 31 Mar 2025 | |||
| PRICE T ROWE ASSOCIATES INC /MD/ | 6.5% | +22% | $1,275,526,324 | +$214,831,656 | 7,209,622 | +20% | T. Rowe Price Associates, Inc. | 30 Jun 2025 |
As of 31 Dec 2025, 866 institutional investors reported holding 80,791,710 shares of QUEST DIAGNOSTICS INC - COMMON STOCK (DGX). This represents 73% of the company’s total 110,917,262 outstanding shares.
The largest institutional shareholders of QUEST DIAGNOSTICS INC - COMMON STOCK (DGX) together control 57% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 13% | 14,392,082 | +0.99% | 0.04% | $2,497,458,052 |
| BlackRock, Inc. | 8.5% | 9,459,218 | -5.4% | 0.03% | $1,641,458,028 |
| STATE STREET CORP | 4.9% | 5,382,547 | +3% | 0.03% | $934,033,381 |
| JPMORGAN CHASE & CO | 3.7% | 4,145,896 | -4% | 0.05% | $719,437,502 |
| Boston Partners | 3.5% | 3,913,326 | -3.1% | 0.7% | $680,020,198 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.7% | 3,028,207 | -0.27% | 0.03% | $523,515,466 |
| MORGAN STANLEY | 2.4% | 2,693,567 | +18% | 0.03% | $467,415,128 |
| VICTORY CAPITAL MANAGEMENT INC | 1.9% | 2,126,422 | -9.3% | 0.21% | $368,998,036 |
| DIMENSIONAL FUND ADVISORS LP | 1.7% | 1,931,548 | +1.3% | 0.07% | $335,203,671 |
| WELLS FARGO & COMPANY/MN | 1.6% | 1,769,093 | -2% | 0.06% | $306,990,631 |
| GOLDMAN SACHS GROUP INC | 1.5% | 1,708,663 | +61% | 0.04% | $296,504,371 |
| Davis Selected Advisers | 1.4% | 1,589,883 | +17% | 1.2% | $275,895,498 |
| NORGES BANK | 1.2% | 1,322,663 | 0.02% | $229,521,710 | |
| UBS Group AG | 1% | 1,114,451 | +68% | 0.04% | $193,390,683 |
| FIDUCIARY MANAGEMENT INC /WI/ | 0.94% | 1,046,921 | -8.8% | 2% | $181,672,201 |
| M&G PLC | 0.85% | 945,052 | -13% | 0.85% | $164,439,048 |
| AMERICAN CENTURY COMPANIES INC | 0.78% | 870,500 | +0.16% | 0.08% | $151,058,412 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.76% | 846,935 | -6.1% | 0.03% | $146,968,630 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.68% | 751,054 | +0.54% | 0.02% | $130,330,401 |
| DekaBank Deutsche Girozentrale | 0.67% | 748,680 | 0% | 0.24% | $114,346,000 |
| Legal & General Group Plc | 0.67% | 742,974 | -1.7% | 0.03% | $128,928,276 |
| Bank of New York Mellon Corp | 0.6% | 670,741 | -18% | 0.02% | $116,393,663 |
| DEUTSCHE BANK AG\ | 0.55% | 609,081 | +16% | 0.03% | $105,693,826 |
| Squarepoint Ops LLC | 0.51% | 565,800 | -11% | 0.2% | $98,183,274 |
| PRINCIPAL FINANCIAL GROUP INC | 0.48% | 531,286 | -0.6% | 0.05% | $92,196,063 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 80,791,710 | $14,000,517,468 | +$44,093,665 | $173.53 | 866 |
| 2025 Q3 | 104,695,066 | $19,932,119,030 | -$465,675,488 | $190.58 | 992 |
| 2025 Q2 | 107,271,403 | $19,256,616,676 | +$992,599,195 | $179.63 | 980 |
| 2025 Q1 | 102,095,860 | $17,269,213,125 | +$517,721,013 | $169.20 | 959 |
| 2024 Q4 | 99,154,244 | $14,960,999,827 | +$197,462,047 | $150.86 | 888 |
| 2024 Q3 | 97,427,136 | $15,114,402,933 | +$35,394,894 | $155.25 | 841 |
| 2024 Q2 | 97,129,285 | $13,298,131,286 | -$229,363,555 | $136.88 | 832 |
| 2024 Q1 | 98,950,699 | $13,164,670,867 | +$160,013,331 | $133.11 | 809 |
| 2023 Q4 | 97,517,517 | $13,442,486,923 | -$182,813,558 | $137.88 | 823 |
| 2023 Q3 | 98,413,094 | $11,999,285,981 | -$148,937,513 | $121.86 | 792 |
| 2023 Q2 | 99,453,851 | $13,976,778,355 | -$89,325,385 | $140.56 | 811 |
| 2023 Q1 | 100,344,532 | $14,186,536,692 | +$138,040,161 | $141.48 | 828 |
| 2022 Q4 | 99,384,483 | $15,542,704,726 | -$520,942,926 | $156.44 | 873 |
| 2022 Q3 | 102,421,380 | $12,576,248,409 | -$156,117,746 | $122.69 | 795 |
| 2022 Q2 | 103,623,750 | $13,783,524,431 | -$104,455,888 | $132.98 | 839 |
| 2022 Q1 | 104,706,282 | $14,331,909,322 | +$114,797,762 | $136.86 | 836 |
| 2021 Q4 | 103,868,351 | $17,926,559,101 | -$910,845,127 | $173.01 | 886 |
| 2021 Q3 | 109,428,506 | $15,895,978,535 | -$587,027,523 | $145.31 | 823 |
| 2021 Q2 | 113,518,424 | $14,971,166,699 | -$247,457,210 | $131.97 | 801 |
| 2021 Q1 | 115,605,235 | $14,825,548,517 | -$117,422,579 | $128.34 | 806 |
| 2020 Q4 | 116,573,431 | $13,881,718,733 | -$96,979,864 | $119.17 | 802 |
| 2020 Q3 | 117,646,327 | $13,461,768,653 | -$143,097,441 | $114.49 | 745 |
| 2020 Q2 | 118,673,236 | $13,537,429,978 | -$19,437,709 | $113.96 | 741 |
| 2020 Q1 | 119,284,390 | $9,578,500,735 | -$77,045,945 | $80.30 | 687 |
| 2019 Q4 | 119,590,917 | $12,765,672,533 | -$65,956,736 | $106.79 | 701 |
| 2019 Q3 | 119,908,439 | $12,828,071,346 | -$146,343,879 | $107.03 | 667 |
| 2019 Q2 | 121,307,635 | $12,348,016,553 | -$253,994,194 | $101.81 | 646 |
| 2019 Q1 | 124,326,676 | $11,179,056,303 | +$258,686,412 | $89.92 | 641 |
| 2018 Q4 | 120,355,742 | $10,006,247,047 | +$99,332,524 | $83.27 | 616 |
| 2018 Q3 | 117,867,357 | $12,707,223,546 | -$158,737,436 | $107.91 | 668 |
| 2018 Q2 | 119,415,794 | $13,112,068,589 | -$98,327,116 | $109.94 | 653 |
| 2018 Q1 | 120,364,122 | $12,039,965,507 | +$124,206,792 | $100.30 | 648 |
| 2017 Q4 | 121,356,508 | $11,918,283,987 | -$240,800,665 | $98.49 | 624 |
| 2017 Q3 | 122,890,147 | $11,506,176,670 | +$205,578,607 | $93.64 | 611 |
| 2017 Q2 | 120,374,506 | $13,373,201,470 | -$100,652,438 | $111.16 | 638 |
| 2017 Q1 | 122,771,045 | $12,055,995,092 | +$1,496,972,734 | $98.19 | 604 |
| 2016 Q4 | 122,414,578 | $11,244,759,452 | -$100,169,362 | $91.90 | 592 |
| 2016 Q3 | 123,347,086 | $10,432,086,303 | -$428,073,336 | $84.63 | 551 |
| 2016 Q2 | 128,601,234 | $10,468,536,610 | -$213,650,875 | $81.41 | 550 |
| 2016 Q1 | 131,439,620 | $9,389,023,639 | -$86,316,010 | $71.45 | 546 |
| 2015 Q4 | 132,653,705 | $9,434,422,581 | -$106,808,004 | $71.14 | 528 |
| 2015 Q3 | 132,401,693 | $8,138,275,550 | -$95,823,114 | $61.47 | 532 |
| 2015 Q2 | 134,111,528 | $9,722,078,488 | -$377,314,939 | $72.52 | 536 |
| 2015 Q1 | 139,462,694 | $10,713,941,525 | -$359,922,262 | $76.85 | 548 |
| 2014 Q4 | 144,872,378 | $9,714,959,930 | -$142,704,030 | $67.06 | 514 |
| 2014 Q3 | 146,863,463 | $8,911,434,019 | -$15,759,754 | $60.68 | 484 |
| 2014 Q2 | 147,116,972 | $8,635,604,705 | -$202,907,033 | $58.69 | 493 |
| 2014 Q1 | 150,964,511 | $8,744,962,308 | +$111,486,984 | $57.92 | 489 |