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DGX

Quest Diagnostics Inc
$207.35 -0.09 (-0.04%) At close · Jul 13
Market Cap
$22.95B
Shares
110,696,429

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 1,064
Total Value: $19,049,273,059
Total Shares: 97,146,974
Showing 1–100 of 1,077 holdings by value · page 1 of 11

Institutional Ownership Trend

26 quarters

Superinvestors Holding DGX

All superinvestors →
Joel Greenblatt $25,629,676 Ray Dalio $680,246

Holder Concentration

Across 1,065 13F filers
Top Holder
9.5%
Jun 2023 → Mar 2026 · range 9.5% – 14.2%
of institutional value
Top 5
33.0%
Jun 2023 → Mar 2026 · range 33.0% – 38.5%
of institutional value
Top 10
47.0%
Jun 2023 → Mar 2026 · range 47.0% – 51.3%
of institutional value
HHI
313
Jun 2023 → Mar 2026 · range 313 – 451
Broadly held
Showing 100 of 1,077
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $1,797,585,775 9.44% 9,172,292
Mega VANGUARD CAPITAL MANAGEMENT LLC $1,400,408,798 7.35% 7,145,672
Mega PRICE T ROWE ASSOCIATES INC /MD/ $1,234,279,491 6.48% 6,297,987
Mega STATE STREET CORP $1,054,533,299 5.54% 5,380,821
Large Boston Partners $786,317,226 4.13% 4,012,232
Mega JPMORGAN CHASE & CO $753,828,439 3.96% 3,846,456
Mega GEODE CAPITAL MANAGEMENT, LLC $604,854,641 3.18% 3,086,308
Mega MORGAN STANLEY $485,975,515 2.55% 2,479,720
Large EdgePoint Investment Group Inc. $439,753,446 2.31% 2,243,869
Mega DIMENSIONAL FUND ADVISORS LP $382,069,866 2.01% 1,949,535
Large Grantham, Mayo, Van Otterloo & Co. LLC $369,035,043 1.94% 1,883,024
Mega VICTORY CAPITAL MANAGEMENT INC $361,844,929 1.90% 1,846,336
Mega WELLS FARGO & COMPANY/MN $345,467,465 1.81% 1,762,769
Mega BANK OF AMERICA CORP /DE/ Bank $343,533,731 1.80% 1,752,902
Mega Invesco Ltd. $321,110,676 1.69% 1,638,487
Large Davis Selected Advisers $317,058,991 1.66% 1,617,813
Mega GOLDMAN SACHS GROUP INC $264,317,047 1.39% 1,348,694
Mega NORTHERN TRUST CORP Bank $218,364,635 1.15% 1,114,219
Mega FMR LLC $184,655,881 0.97% 942,218
Mega AMERICAN CENTURY COMPANIES INC $169,979,529 0.89% 867,331
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $165,917,250 0.87% 846,603
Mega AMERIPRISE FINANCIAL INC $158,249,338 0.83% 807,477
Large M&G PLC $157,830,729 0.83% 805,341
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $149,099,624 0.78% 760,790
Large DekaBank Deutsche Girozentrale Bank $146,726,306 0.77% 748,680
Mega Legal & General Group Plc $144,363,766 0.76% 736,625
Large Qube Research & Technologies Ltd $143,989,249 0.76% 734,714
Mid FIDUCIARY MANAGEMENT INC /WI/ $141,298,836 0.74% 720,986
Mega UBS Group AG $137,644,004 0.72% 702,337
Mega ALLIANCEBERNSTEIN L.P. $133,493,344 0.70% 681,158
Mega Bank of New York Mellon Corp Bank $128,555,228 0.67% 655,961
Mega VANGUARD FIDUCIARY TRUST CO Bank $121,346,896 0.64% 619,180
Large Woodline Partners LP $116,361,949 0.61% 593,744
Mega BARCLAYS PLC $110,820,809 0.58% 565,470
Mega DEUTSCHE BANK AG\ Bank $107,965,181 0.57% 550,899
Mega PRINCIPAL FINANCIAL GROUP INC $103,091,947 0.54% 526,033
Mid CRAWFORD INVESTMENT COUNSEL INC $95,331,139 0.50% 486,433
Mega Nuveen, LLC $91,213,989 0.48% 465,425
Mega RAYMOND JAMES FINANCIAL INC $89,848,009 0.47% 458,455
Mid Artemis Investment Management LLP $87,656,758 0.46% 447,274
Large Pacer Advisors, Inc. $83,466,902 0.44% 425,895
Mega ENVESTNET ASSET MANAGEMENT INC $80,829,207 0.42% 412,436
Mega Amundi $80,024,511 0.42% 408,330
Mega CITADEL ADVISORS LLC $68,047,783 0.36% 347,218
Large Squarepoint Ops LLC $67,767,532 0.36% 345,788
Mega FIRST TRUST ADVISORS LP $64,507,208 0.34% 329,152
Mid Advisors Capital Management, LLC $64,134,650 0.34% 327,251
Mega Swiss National Bank Bank $63,987,470 0.34% 326,500
Large CANADA LIFE ASSURANCE Co Insurance $59,909,321 0.31% 305,691
Mid M.D. Sass, LLC $58,687,974 0.31% 299,459
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $57,820,957 0.30% 295,035
Mega CITIGROUP INC $56,270,364 0.30% 287,123
Mega BNP PARIBAS ARBITRAGE, SA $52,969,670 0.28% 270,281
Mega Sumitomo Mitsui Trust Group, Inc. $51,886,488 0.27% 264,754
Mega RHUMBLINE ADVISERS $51,610,745 0.27% 263,347
Large VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. $50,229,282 0.26% 256,298
Mega Mitsubishi UFJ Asset Management Co., Ltd. $49,277,407 0.26% 251,441
Mega Vanguard Global Advisers, LLC $47,530,049 0.25% 242,525
Large Eurizon Capital SGR S.p.A. $47,195,119 0.25% 240,816
Large ACADIAN ASSET MANAGEMENT LLC $46,923,883 0.25% 239,432
Mega California Public Employees Retirement System Pension $46,602,476 0.24% 237,792
Large Clark Capital Management Group, Inc. $46,138,003 0.24% 235,422
Large Quantinno Capital Management LP $45,276,279 0.24% 231,025
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $45,258,445 0.24% 230,934
Mega VANGUARD ASSET MANAGEMENT, Ltd $44,434,545 0.23% 226,730
Large SG Americas Securities, LLC Broker-Dealer $42,583,710 0.22% 217,286
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $41,583,036 0.22% 212,180
Mega BANK OF MONTREAL /CAN/ Bank $41,227,328 0.22% 210,365
Mid EASTERN BANK Bank $40,263,929 0.21% 189,969
Large MARSHALL WACE, LLP $39,250,481 0.21% 200,278
Mega ROYAL BANK OF CANADA Bank $38,908,690 0.20% 198,534
Mega HSBC HOLDINGS PLC $38,244,317 0.20% 195,144
Large VOYA INVESTMENT MANAGEMENT LLC $36,486,575 0.19% 186,175
Mid CONNING INC. $34,474,057 0.18% 175,906
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Pension $33,495,333 0.18% 170,912
Mid ANTIPODES PARTNERS Ltd $31,864,192 0.17% 162,589
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $31,795,403 0.17% 162,238
Mid BRAUN STACEY ASSOCIATES INC $30,735,935 0.16% 156,832
Mid COOKSON PEIRCE & CO INC $30,639,905 0.16% 156,342
Mid Copeland Capital Management, LLC $30,445,099 0.16% 155,348
Large APG Asset Management N.V. $30,168,965 0.16% 153,939
Mid Willis Investment Counsel $29,749,764 0.16% 151,800
Large Focus Partners Wealth $29,564,758 0.16% 150,856
Large CREDIT AGRICOLE S A $29,114,786 0.15% 148,560
Mega D. E. Shaw & Co., Inc. $28,951,537 0.15% 147,727
Large STOREBRAND ASSET MANAGEMENT AS $27,549,692 0.14% 140,574
Large SEB Asset Management AB $27,427,596 0.14% 139,951
Mid Achmea Investment Management B.V. $26,872,581 0.14% 137,119
Large Universal- Beteiligungs- und Servicegesellschaft mbH $25,856,621 0.14% 131,935
Large Gotham Asset Management, LLC $25,629,676 0.13% 130,777
Large MACKENZIE FINANCIAL CORP $24,793,429 0.13% 126,510
Large &PARTNERS $23,945,424 0.13% 122,183
Mega FRANKLIN RESOURCES INC $23,844,293 0.13% 121,667
Mid KAMES CAPITAL plc $22,866,861 0.12% 107,888
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $22,490,272 0.12% 114,758
Mega CITADEL ADVISORS LLC $22,145,740 0.12% 113,000
Large Robeco Institutional Asset Management B.V. $22,030,503 0.12% 112,412
Large STIFEL FINANCIAL CORP $21,956,225 0.12% 112,033
Mega LPL Financial LLC $21,705,372 0.11% 110,753
Large Aberdeen Group plc $21,297,341 0.11% 108,671
Key facts CIK 1022079 CUSIP 74834L100 13F (30d) 96 filings 74 filers Visit website Investor relations

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