Quest Diagnostics Incorporated
US ˙ NYSE ˙ US74834L1008

SecurityDGX / Quest Diagnostics Incorporated
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership40,652 shares
Latest Disclosed Value $ 7,966,949
Neuberger Berman Group LLC reports 7.23% decrease in ownership of DGX / Quest Diagnostics Incorporated

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 40,652 shares of Quest Diagnostics Incorporated (US:DGX) valued at $7,966,979 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 43,821 shares of Quest Diagnostics Incorporated. This represents a change in shares of -7.23% during the quarter. The current value of the position is $7,873,073 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F QUEST DIAGNOSTICS Common 74834L100 40,652 -3,169 -7.23 7,967 4.76 0.0031
2026-02-13 2025-12-31 13F QUEST DIAGNOSTICS Common 74834L100 43,821 -474,675 -91.55 7,604 -92.30 0.0057
2025-11-12 2025-09-30 13F QUEST DIAGNOSTICS Common 74834L100 518,496 -197,828 -27.62 98,778 -23.21 0.0722
2025-08-25 2025-06-30 13F/A-1 QUEST DIAGNOSTICS Common 74834L100 716,324 79,801 12.54 128,632 19.44 0.0990
2025-08-13 2025-06-30 13F QUEST DIAGNOSTICS Common 74834L100 716,324 79,801 128,632 0.0512
2025-05-13 2025-03-31 13F QUEST DIAGNOSTICS Common 74834L100 636,523 570,785 868.27 107,700 986.00 0.0902
2025-02-13 2024-12-31 13F QUEST DIAGNOSTICS Common 74834L100 65,738 6,227 10.46 9,917 7.34 0.0079
2024-11-14 2024-09-30 13F QUEST DIAGNOSTICS Common 74834L100 59,511 331 0.56 9,239 14.06 0.0072
2024-11-14 2024-06-30 13F/A-1 QUEST DIAGNOSTICS Common 74834L100 59,180 24,832 72.30 8,101 77.17 0.0066
2024-08-13 2024-06-30 13F QUEST DIAGNOSTICS Common 74834L100 59,180 24,832 8,101 0.0066
2024-11-14 2024-03-31 13F/A-1 QUEST DIAGNOSTICS Common 74834L100 34,348 2,037 6.30 4,572 2.63 0.0038
2024-05-13 2024-03-31 13F QUEST DIAGNOSTICS Common 74834L100 34,348 2,037 4,572 0.0038
2024-11-14 2023-12-31 13F/A-2 QUEST DIAGNOSTICS Common 74834L100 32,311 -3,621 -10.08 4,455 1.76 0.0039
2024-02-09 2023-12-31 13F QUEST DIAGNOSTICS Common 74834L100 32,311 -3,621 4,455 0.0039
2023-11-14 2023-09-30 13F QUEST DIAGNOSTICS Common 74834L100 35,932 4,695 15.03 4,379 -0.27 0.0040
2023-08-11 2023-06-30 13F QUEST DIAGNOSTICS Common 74834L100 31,237 -14,181 -31.22 4,391 -31.67 0.0039
2023-05-12 2023-03-31 13F QUEST DIAGNOSTICS Common 74834L100 45,418 20,522 82.43 6,426 65.00 0.0060
2023-02-13 2022-12-31 13F QUEST DIAGNOSTICS Common 74834L100 24,896 936 3.91 3,895 30.23 0.0038
2022-11-15 2022-09-30 13F QUEST DIAGNOSTICS Common 74834L100 23,960 -18,843 -44.02 2,990 -47.90 0.0031
2022-08-15 2022-06-30 13F QUEST DIAGNOSTICS Common 74834L100 42,803 1,210 2.91 5,739 0.10 0.0058
2022-05-23 2022-03-31 13F/A-1 QUEST DIAGNOSTICS Common 74834L100 41,593 6,479 18.45 5,733 -1.88 0.0049
2022-05-13 2022-03-31 13F QUEST DIAGNOSTICS Common 74834L100 41,593 6,479 5,295 0.0024
2022-02-11 2021-12-31 13F QUEST DIAGNOSTICS Common 74834L100 35,114 11,784 50.51 5,843 81.46 0.0046
2021-11-12 2021-09-30 13F QUEST DIAGNOSTICS Common 74834L100 23,330 13,396 134.85 3,220 161.79 0.0028
2021-08-13 2021-06-30 13F QUEST DIAGNOSTICS Common 74834L100 9,934 -12,166 -55.05 1,230 -55.45 0.0011
2021-05-13 2021-03-31 13F QUEST DIAGNOSTICS Common 74834L100 22,100 -125,226 -85.00 2,761 -84.28 0.0026
2021-02-10 2020-12-31 13F QUEST DIAGNOSTICS Common 74834L100 147,326 -8,500 -5.45 17,565 -1.51 0.0182
2020-11-12 2020-09-30 13F QUEST DIAGNOSTICS Common 74834L100 155,826 25,810 19.85 17,834 20.38 0.0211
2020-08-13 2020-06-30 13F QUEST DIAGNOSTICS Common 74834L100 130,016 72,778 127.15 14,815 222.35 0.0184
2020-05-14 2020-03-31 13F QUEST DIAGNOSTICS Common 74834L100 57,238 48,037 522.08 4,596 368.02 0.0070
2020-02-12 2019-12-31 13F QUEST DIAGNOSTICS Common 74834L100 9,201 -2,912 -24.04 982 -24.23 0.0011
2019-11-13 2019-09-30 13F QUEST DIAGNOSTICS Common 74834L100 12,113 5,526 83.89 1,296 93.43 0.0016
2019-08-13 2019-06-30 13F QUEST DIAGNOSTICS Common 74834L100 6,587 -1,210 -15.52 670 -4.42 0.0008
2019-05-13 2019-03-31 13F QUEST DIAGNOSTICS Common 74834L100 7,797 -28,898 -78.75 701 -77.06 0.0009
2019-02-12 2018-12-31 13F QUEST DIAGNOSTICS Common 74834L100 36,695 10,504 40.11 3,056 8.14 0.0043
2018-11-16 2018-09-30 13F/A-1 QUEST DIAGNOSTICS Common 74834L100 26,191 -37,639 -58.97 2,826 -60.42 0.0032
2018-11-13 2018-09-30 13F QUEST DIAGNOSTICS Common 74834L100 26,191 -37,639 2,826
2018-08-13 2018-06-30 13F QUEST DIAGNOSTICS Common 74834L100 63,830 35,169 122.71 7,140 140.32 0.0079
2018-05-08 2018-03-31 13F QUEST DIAGNOSTICS Common 74834L100 28,661 1,117 4.06 2,971 6.76 0.0034
2018-02-14 2017-12-31 13F QUEST DIAGNOSTICS Common 74834L100 27,544 -10,002 -26.64 2,783 -20.85 0.0032
2017-11-15 2017-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 37,546 264 0.71 3,516 -15.15 0.0044
2017-08-08 2017-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 37,282 189 0.51 4,144 13.78 0.0053
2017-05-10 2017-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 37,093 -2,663 -6.70 3,642 -0.33 0.0047
2017-02-06 2016-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 39,756 1,569 4.11 3,654 13.06 0.0049
2016-11-02 2016-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 38,187 34,477 929.30 3,232 970.20 0.0044
2016-08-05 2016-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 3,710 277 8.07 302 23.27 0.0004
2016-05-06 2016-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 3,433 -162,645 -97.93 245 -97.93 0.0003
2016-01-28 2015-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 166,078 -147,926 -47.11 11,815 -38.79 0.0155
2015-11-10 2015-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 314,004 3,866 1.25 19,302 -14.18 0.0249
2015-07-31 2015-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 310,138 -27 -0.01 22,491 -5.64 0.0250
2015-05-06 2015-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 310,165 310,165 0.00 23,836 0.0254
2014-11-04 2014-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 0 -5,100 -100.00 0 -100.00
2014-08-05 2014-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 5,100 -3,568 -41.16 299 -40.44 0.0003
2014-05-05 2014-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 8,668 797 10.13 502 19.24 0.0005
2014-02-11 2013-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 7,871 -170 -2.11 421 -15.29 0.0004
2013-10-29 2013-09-30 13F/A-1 QUEST DIAGNOSTICS COMMON STOCK 74834L100 8,041 4,547 130.14 497 134.43 0.0006
2013-10-29 2013-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 5,095 312
2013-08-13 2013-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 3,494 3,494 212 0.0003
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.