Quest Diagnostics Inc. 13F holders
1,114 funds reported a position in Quest Diagnostics Inc. in their 13F for the quarter ended 30 June 2026, together 104.9 million shares worth $22.21 billion. Against the quarter before, 90 opened a position, 417 added, 352 trimmed and 70 sold out; together they bought a net 910,624 shares. The largest holders: BlackRock, Inc., Vanguard Capital Management LLC and Vanguard Portfolio Management LLC.
Funds holding1,114+41 on Q1 2026
Shares they held104.9Mworth $22.21 billion
Net bought on the quarter910,624 sharesabout $192.7 million at the funds' values
Funds buying to selling507 to 422opened or added, to cut or sold
Opened 90Added 417Held 247Trimmed 352Sold out 70
What each fund did in DGX against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in DGX in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
4,696 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 605 reported a position in Quest Diagnostics Inc.: 43 opened one, 193 added, 202 trimmed and 44 sold out, a net 651,301 shares sold.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 1 reported a position in Quest Diagnostics Inc. in a 13F for the quarter ended 30 September 2026, and 6 more in a 13F for an earlier quarter, the latest each has filed. The largest: Geode Capital Management, 3.2 million shares worth $734.9 million, 0.0% of its reported book. In the quarter, 1 fund added or opened a position and 0 trimmed or sold out; together they bought a net 26,956 shares, about $6.3 million at the funds' own value per share on 30 September 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 3,164,829 | $734.9 million | 0.0% | +26,956 | added | 30 September 2026 | 13F |
| Norges Bank | 1,406,620 | $298.1 million | 0.0% | held | 30 June 2026, an earlier quarter | 13F | |
| FMR LLC | 1,398,735 | $296.5 million | 0.0% | +456,517 | added | 30 June 2026, an earlier quarter | 13F |
| Citadel Advisors | 133,211 | $28.2 million | 0.0% | -214,007 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Point72 Asset Management | 23,380 | $5.0 million | 0.0% | +23,380 | new | 30 June 2026, an earlier quarter | 13F |
| Millennium Management | 11,434 | $2.4 million | 0.0% | -38,732 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Bridgewater Associates | 3,756 | $796,084 | 0.0% | +285 | added | 30 June 2026, an earlier quarter | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 9,275,411 | 8.84% | $1.97 billion | 0.03% | +103,119 | 13F |
| Vanguard Capital Management LLC | 7,233,394 | 6.89% | $1.53 billion | 0.03% | +87,722 | 13F |
| Vanguard Portfolio Management LLC | 6,131,045 | 5.84% | $1.30 billion | 0.06% | +49,645 | 13F |
| State Street Corp. | 5,516,643 | 5.26% | $1.17 billion | 0.04% | +135,822 | 13F |
| Price T Rowe Associates Inc. | 5,444,986 | 5.19% | $1.15 billion | 0.12% | -853,001 | 13F |
| Boston Partners | 4,744,473 | 4.52% | $1.00 billion | 0.89% | +732,241 | 13F |
| JPMorgan Chase & Co. | 3,520,438 | 3.35% | $748.6 million | 0.04% | -326,018 | 13F |
| Geode Capital Management, LLC | 3,137,873 | 2.99% | $662.6 million | 0.04% | +51,565 | 13F |
| Morgan Stanley | 2,460,497 | 2.34% | $521.5 million | 0.03% | -19,223 | 13F |
| EdgePoint Investment Group Inc. | 2,247,568 | 2.14% | $476.4 million | 3.60% | +3,699 | 13F |
| Dimensional Fund Advisors LP | 1,988,048 | 1.89% | $421.4 million | 0.08% | +38,513 | 13F |
| Bank of America Corp. | 1,935,133 | 1.84% | $410.2 million | 0.03% | +182,231 | 13F |
| Grantham, Mayo, Van Otterloo & Co. LLC | 1,888,207 | 1.80% | $400.2 million | 0.90% | +5,183 | 13F |
| Wells Fargo & Company | 1,751,220 | 1.67% | $371.2 million | 0.07% | -11,549 | 13F |
| Davis Selected Advisers | 1,555,612 | 1.48% | $329.8 million | 1.42% | -62,201 | 13F |
| Victory Capital Management Inc. | 1,550,556 | 1.48% | $328.6 million | 0.18% | -295,780 | 13F |
| Norges Bank | 1,406,620 | 1.34% | $298.1 million | 0.03% | 13F | |
| FMR LLC | 1,398,735 | 1.33% | $296.5 million | 0.01% | +456,517 | 13F |
| Invesco Ltd. | 1,379,115 | 1.31% | $292.3 million | 0.02% | -259,372 | 13F |
| Northern Trust Corp. | 1,127,454 | 1.07% | $239.0 million | 0.03% | +13,235 | 13F |
| Goldman Sachs Group Inc. | 982,694 | 0.94% | $208.3 million | 0.02% | -366,000 | 13F |
| UBS AM, a distinct business unit of UBS Asset Management Americas LLC | 942,407 | 0.90% | $199.7 million | 0.04% | +95,804 | 13F |
| UBS Group AG | 888,906 | 0.85% | $188.4 million | 0.03% | +186,569 | 13F |
| American Century Companies Inc. | 818,220 | 0.78% | $173.4 million | 0.08% | -49,111 | 13F |
| M&G PLC | 795,650 | 0.76% | $168.7 million | 0.87% | -9,691 | 13F |
| Charles Schwab Investment Management Inc. | 773,711 | 0.74% | $164.0 million | 0.02% | +12,921 | 13F |
| Ameriprise Financial Inc. | 759,975 | 0.72% | $161.1 million | 0.03% | -47,502 | 13F |
| Legal & General Group Plc | 717,085 | 0.68% | $152.0 million | 0.03% | -19,540 | 13F |
| DekaBank Deutsche Girozentrale | 748,680 | 0.71% | $146.2 million | 0.25% | no change | 13F |
| Bank of New York Mellon Corp | 629,339 | 0.60% | $133.4 million | 0.02% | -26,622 | 13F |
| Vanguard Fiduciary Trust Co. | 621,639 | 0.59% | $131.8 million | 0.03% | +2,459 | 13F |
| Deutsche Bank AG | 585,895 | 0.56% | $124.2 million | 0.04% | +34,996 | 13F |
| AllianceBernstein L.P. | 625,894 | 0.60% | $122.7 million | 0.04% | -55,264 | 13F |
| Nuveen, LLC | 563,830 | 0.54% | $119.5 million | 0.03% | +98,405 | 13F |
| Principal Financial Group Inc. | 517,225 | 0.49% | $109.6 million | 0.05% | -8,808 | 13F |
| Raymond James Financial Inc. | 505,762 | 0.48% | $107.2 million | 0.03% | +47,307 | 13F |
| Amundi | 498,751 | 0.48% | $105.7 million | 0.03% | +90,421 | 13F |
| Woodline Partners LP | 485,841 | 0.46% | $103.0 million | 0.32% | -107,903 | 13F |
| Fiduciary Management Inc. | 483,557 | 0.46% | $102.5 million | 1.46% | -237,429 | 13F |
| Artemis Investment Management LLP | 467,921 | 0.45% | $99.2 million | 0.88% | +20,647 | 13F |
| Crawford Investment Counsel Inc. | 460,081 | 0.44% | $97.5 million | 1.62% | -26,352 | 13F |
| Barclays PLC | 448,726 | 0.43% | $95.1 million | 0.03% | -116,744 | 13F |
| Envestnet Asset Management Inc. | 428,564 | 0.41% | $90.8 million | 0.02% | +16,128 | 13F |
| Schroder Investment Management Group | 417,715 | 0.40% | $88.8 million | 0.06% | +122,680 | 13F |
| BNP Paribas Financial Markets | 395,245 | 0.38% | $83.8 million | 0.04% | +124,964 | 13F |
| Pacer Advisors, Inc. | 381,995 | 0.36% | $81.0 million | 0.21% | -43,900 | 13F |
| M.D. Sass, LLC | 360,453 | 0.34% | $76.4 million | 5.06% | +60,994 | 13F |
| Acadian Asset Management LLC | 346,489 | 0.33% | $73.4 million | 0.09% | +107,057 | 13F |
| Qube Research & Technologies Ltd | 343,398 | 0.33% | $72.8 million | 0.08% | -391,316 | 13F |
| Mackenzie Financial Corp. | 333,295 | 0.32% | $70.6 million | 0.07% | +206,785 | 13F |
The 50 largest of the 1,114 funds that reported a position in DGX in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on DGX
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 88,800 | $18.8 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 55,200 | $11.7 million | 30 June 2026 | 13F |
| Millennium Management | Puts | 7,000 | $1.5 million | 30 June 2026 | 13F |
| Millennium Management | Calls | 6,000 | $1.3 million | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 14 August 2026 | 13G/A | T. Rowe Price Associates, Inc. and 1 other | 5.4 million | 4.9% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 30 April 2026 | 13G | Vanguard Capital Management and 1 other | 8.3 million | 7.5% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 29 April 2026 | 13G | Vanguard Portfolio Management and 1 other | 6.1 million | 5.5% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 27 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 28 August 2026 | 28 | $244.61 | SEC |
| 25 August 2026 | 53 | $243.87 | SEC |
| 24 August 2026 | 191 | $244.39 | SEC |
| 20 August 2026 | 2,302 | $241.76 | SEC |
| 18 August 2026 | 754 | $235.52 | SEC |
| 7 August 2026 | 1 | $238.50 | SEC |
| 3 August 2026 | 2,118 | $233.01 | SEC |
| 29 July 2026 | 20 | $235.94 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.