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.
13F holders, Q1 2026
Institutional positions in Quest Diagnostics Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 1,069
- +36 vs. Q4 2025
- Shares held
- 102.6M
- +12.5M (+13.8%) vs. Q4 2025
- Total value
- $20.1B
- +$4.48B (+28.7%) vs. Q4 2025
- New holders
- 123
- 352 more added
- Sold out
- 87
- 382 more reduced
17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting DGX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,112 | $22.2B |
| Q1 2026 | 1,069 | $20.1B |
| Q4 2025 | 1,050 | $18.4B |
| Q3 2025 | 1,006 | $20.0B |
| Q2 2025 | 991 | $19.3B |
| Q1 2025 | 969 | $17.5B |
| Q4 2024 | 896 | $15.0B |
| Q3 2024 | 849 | $15.2B |
| Q2 2024 | 839 | $13.3B |
| Q1 2024 | 818 | $13.2B |
| Q4 2023 | 829 | $13.5B |
| Q3 2023 | 797 | $12.0B |
| Q2 2023 | 820 | $14.0B |
| Q1 2023 | 837 | $14.2B |
| Q4 2022 | 881 | $15.5B |
| Q3 2022 | 809 | $12.6B |
| Q2 2022 | 853 | $13.8B |
| Q1 2022 | 852 | $14.4B |
| Q4 2021 | 906 | $18.0B |
| Q3 2021 | 840 | $15.9B |
| Q2 2021 | 816 | $15.0B |
| Q1 2021 | 818 | $14.8B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bank of Montreal | 210,365 | $41.2M | 0.02% | −7,019−3.2% | Reduced |
| Nomura Asset Management International Inc. | 212,180 | $41.6M | 0.07% | −33,874−13.8% | Reduced |
| SG Americas Securities, LLC | 217,286 | $42.6M | 0.05% | +37,633+20.9% | Added |
| Vanguard Asset Management, Ltd | 226,730 | $44.4M | 0.04% | +226,730 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 230,934 | $45.3M | 0.05% | +5,640+2.5% | Added |
| Quantinno Capital Management LP | 231,025 | $45.3M | 0.08% | −38,572−14.3% | Reduced |
| Clark Capital Management Group, Inc. | 235,422 | $46.1M | 0.28% | +235,422 | New |
| California Public Employees Retirement System | 237,792 | $46.6M | 0.03% | −112,457−32.1% | Reduced |
| Acadian Asset Management LLC | 239,432 | $46.9M | 0.07% | +48,457+25.4% | Added |
| Eurizon Capital SGR S.p.A. | 240,816 | $47.2M | 0.15% | −8,366−3.4% | Reduced |
| Vanguard Global Advisers, LLC | 242,525 | $47.5M | 0.03% | +242,525 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 251,441 | $49.3M | 0.03% | +22,031+9.6% | Added |
| Kempen Capital Management N.V. | 256,298 | $50.2M | 0.44% | +81,152+46.3% | Added |
| Rhumbline Advisers | 263,347 | $51.6M | 0.04% | −13,116−4.7% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 264,754 | $51.9M | 0.03% | −12,429−4.5% | Reduced |
| BNP Paribas Arbitrage, SA | 270,281 | $53.0M | 0.03% | +42,224+18.5% | Added |
| Citigroup Inc | 287,123 | $56.3M | 0.04% | −22,694−7.3% | Reduced |
| Schroder Investment Management Group | 295,035 | $58.2M | 0.05% | +37,655+14.6% | Added |
| M.D. Sass Investors Services, Inc. | 299,459 | $58.7M | 4.45% | +299,459 | New |
| Great West Life Assurance Co | 305,691 | $60.1M | 0.11% | −13,602−4.3% | Reduced |
| Swiss National Bank | 326,500 | $64.0M | 0.04% | +20,000+6.5% | Added |
| Advisors Capital Management, LLC | 327,251 | $64.1M | 0.75% | +13,413+4.3% | Added |
| First Trust Advisors LP | 329,152 | $64.5M | 0.05% | −22,557−6.4% | Reduced |
| Squarepoint Ops LLC | 345,788 | $67.8M | 0.15% | −220,012−38.9% | Reduced |
| Citadel Advisors LLC | 347,218 | $68.0M | 0.05% | −78,018−18.3% | Reduced |
| Amundi | 408,330 | $80.0M | 0.02% | −55,834−12.0% | Reduced |
| Envestnet Asset Management Inc | 412,436 | $80.8M | 0.02% | +78,633+23.6% | Added |
| Pacer Advisors, Inc. | 425,895 | $83.5M | 0.24% | −21,832−4.9% | Reduced |
| Artemis Investment Management LLP | 447,274 | $87.7M | 0.93% | −13,451−2.9% | Reduced |
| Raymond James Financial Inc | 458,455 | $89.8M | 0.03% | −4,827−1.0% | Reduced |
| Nuveen, LLC | 465,425 | $91.2M | 0.02% | +131,391+39.3% | Added |
| Crawford Investment Counsel Inc | 486,433 | $95.3M | 1.63% | −10,066−2.0% | Reduced |
| Principal Financial Group Inc | 526,033 | $103.1M | 0.06% | −5,253−1.0% | Reduced |
| Deutsche Bank AG | 550,899 | $108.0M | 0.04% | −58,182−9.6% | Reduced |
| Barclays PLC | 565,470 | $110.8M | 0.04% | +232,168+69.7% | Added |
| Woodline Partners LP | 593,744 | $116.4M | 0.44% | +252,372+73.9% | Added |
| Alliancebernstein L.P. | 681,158 | $118.2M | 0.04% | +48,751+7.7% | Added |
| Vanguard Fiduciary Trust Co | 619,180 | $121.3M | 0.03% | +619,180 | New |
| Bank of New York Mellon Corp | 655,961 | $128.6M | 0.02% | −14,780−2.2% | Reduced |
| UBS Group AG | 702,337 | $137.6M | 0.02% | −412,114−37.0% | Reduced |
| Fiduciary Management Inc | 720,986 | $141.3M | 1.75% | −325,935−31.1% | Reduced |
| Qube Research & Technologies Ltd | 734,714 | $144.0M | 0.20% | +1,258+0.2% | Added |
| Legal & General Group Plc | 736,625 | $144.4M | 0.03% | −6,349−0.9% | Reduced |
| Charles Schwab Investment Management Inc | 760,790 | $149.1M | 0.02% | +9,736+1.3% | Added |
| DekaBank Deutsche Girozentrale | 748,680 | $149.2M | 0.25% | 00.0% | Unchanged |
| M&G Plc | 805,341 | $157.8M | 0.82% | −139,711−14.8% | Reduced |
| Ameriprise Financial Inc | 807,477 | $158.3M | 0.04% | −5,977−0.7% | Reduced |
| UBS Asset Management Americas Inc | 846,603 | $165.9M | 0.03% | −3320.0% | Reduced |
| American Century Companies Inc | 867,331 | $170.0M | 0.09% | −3,169−0.4% | Reduced |
| FMR LLC | 942,218 | $184.7M | 0.01% | −260,036−21.6% | Reduced |
| Northern Trust Corp | 1,114,219 | $218.4M | 0.03% | +35,646+3.3% | Added |
| Goldman Sachs Group Inc | 1,348,694 | $264.3M | 0.03% | −360,231−21.1% | Reduced |
| Davis Selected Advisers | 1,617,813 | $317.1M | 1.46% | +27,930+1.8% | Added |
| Invesco Ltd. | 1,638,487 | $321.1M | 0.03% | −28,492−1.7% | Reduced |
| Bank of America Corp | 1,752,902 | $343.5M | 0.03% | +129,964+8.0% | Added |
| Wells Fargo & Company | 1,762,769 | $345.5M | 0.07% | −6,324−0.4% | Reduced |
| Victory Capital Management Inc | 1,846,336 | $361.8M | 0.23% | −280,086−13.2% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 1,883,024 | $369.0M | 0.94% | +66,964+3.7% | Added |
| Dimensional Fund Advisors LP | 1,949,535 | $382.1M | 0.08% | +17,987+0.9% | Added |
| EdgePoint Investment Group Inc. | 2,243,869 | $439.8M | 3.53% | +582,797+35.1% | Added |
| Morgan Stanley | 2,479,720 | $486.0M | 0.03% | −213,848−7.9% | Reduced |
| Geode Capital Management, LLC | 3,086,308 | $602.7M | 0.04% | +58,101+1.9% | Added |
| JPMorgan Chase & Co | 3,846,456 | $758.4M | 0.05% | −299,440−7.2% | Reduced |
| Boston Partners | 4,012,232 | $786.7M | 0.82% | +98,906+2.5% | Added |
| State Street Corp | 5,380,821 | $1.05B | 0.04% | −1,7260.0% | Reduced |
| Vanguard Portfolio Management LLC | 6,081,400 | $1.19B | 0.06% | +6,081,400 | New |
| Price T Rowe Associates Inc | 6,297,987 | $1.23B | 0.14% | +8300.0% | Added |
| Vanguard Capital Management LLC | 7,145,672 | $1.40B | 0.03% | +7,145,672 | New |
| BlackRock, Inc. | 9,172,292 | $1.80B | 0.03% | −286,926−3.0% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −139,936−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −100,301−100.0% | Sold out |
| Distillate Capital Partners LLC | 0 | $0 | 0.00% | −88,756−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −47,984−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −28,913−100.0% | Sold out |
| Van Eck Associates Corp | 0 | $0 | 0.00% | −25,977−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −24,043−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −22,766−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −22,173−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −21,544−100.0% | Sold out |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −18,392−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −18,178−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −16,840−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −14,526−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −11,380−100.0% | Sold out |
| Machina Capital S.A.S. | 0 | $0 | 0.00% | −10,613−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −9,690−100.0% | Sold out |
| Taproot Management LP | 0 | $0 | 0.00% | −9,594−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −7,588−100.0% | Sold out |
| Oak Thistle LLC | 0 | $0 | 0.00% | −7,132−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −6,886−100.0% | Sold out |
| Polymer Capital Management (US) LLC | 0 | $0 | 0.00% | −6,817−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −6,645−100.0% | Sold out |
| Pensionfund Sabic | 0 | $0 | 0.00% | −6,400−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −5,482−100.0% | Sold out |
| Game Plan Financial Advisors, LLC | 0 | $0 | 0.00% | −5,338−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −4,802−100.0% | Sold out |
| Lecap Asset Management Ltd | 0 | $0 | 0.00% | −4,497−100.0% | Sold out |
| Lido Advisors, LLC | 0 | $0 | 0.00% | −3,914−100.0% | Sold out |
| Hussman Strategic Advisors, Inc. | 0 | $0 | 0.00% | −4,200−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −3,557−100.0% | Sold out |