Quest Diagnostics Incorporated
US ˙ NYSE ˙ US74834L1008

SecurityDGX / Quest Diagnostics Incorporated
InstitutionOakworth Capital, Inc.
Latest Disclosed Ownership50 shares
Latest Disclosed Value $ 9,799
Oakworth Capital, Inc. ownership in DGX / Quest Diagnostics Incorporated

On April 24, 2026 - Oakworth Capital, Inc. filed a 13F-HR form disclosing ownership of 50 shares of Quest Diagnostics Incorporated (US:DGX) valued at $9,799 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 50 shares of Quest Diagnostics Incorporated. This represents a change in shares of 0.00% during the quarter. The current value of the position is $10,014 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)
2026-04-24 2026-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 50 0 0.00 10 12.50 0.0005
2026-01-30 2025-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 50 0 0.00 9 -11.11 0.0005
2025-11-04 2025-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 50 0 0.00 10 12.50 0.0006
2025-07-17 2025-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 50 0 0.00 9 0.00 0.0006
2025-04-24 2025-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 50 0 0.00 8 14.29 0.0006
2025-01-27 2024-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 50 -33 -39.76 8 -41.67 0.0005
2024-10-21 2024-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 13 9.09 0.0009
2024-07-19 2024-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 11 0.00 0.0008
2024-04-22 2024-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 11 0.00 0.0008
2024-01-31 2023-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 11 10.00 0.0009
2023-10-31 2023-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 10 -9.09 0.0009
2023-07-28 2023-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 12 0.00 0.0010
2023-05-02 2023-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 12 -8.33 0.0011
2023-02-03 2022-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 13 20.00 0.0012
2022-10-31 2022-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 10 -9.09 0.0011
2022-08-05 2022-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 11 0.00 0.0011
2022-04-11 2022-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 0 0.00 11 -21.43 0.0009
2022-02-07 2021-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 83 -17 -17.00 14 -6.67 0.0012
2021-11-10 2021-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 100 -100 -50.00 15 -42.31 0.0014
2021-07-20 2021-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 200 -184 -47.92 26 -46.94 0.0026
2021-04-30 2021-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 384 0 0.00 49 6.52 0.0056
2021-02-12 2020-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 384 0 0.00 46 4.55 0.0060
2020-11-09 2020-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 384 -9 -2.29 44 -2.22 0.0071
2020-08-11 2020-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 393 0 0.00 45 40.63 0.0081
2020-05-07 2020-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 393 0 0.00 32 -21.95 0.0075
2020-01-31 2019-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 393 0 0.00 41 -2.38 0.0072
2019-11-13 2019-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 393 -1,695 -81.18 42 -80.19 0.0081
2019-08-02 2019-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,088 0 0.00 212 13.37 0.0404
2019-05-06 2019-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,088 -230 -9.92 187 -3.11 0.0383
2019-02-13 2018-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,318 -290 -11.12 193 -31.32 0.0440
2018-10-25 2018-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,608 0 0.00 281 -1.75 0.0562
2018-08-07 2018-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,608 0 0.00 286 8.33 0.0594
2018-05-09 2018-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,608 0 0.00 264 2.72 0.0631
2018-01-22 2017-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,608 0 0.00 257 -9.19 0.0605
2017-11-08 2017-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,608 0 0.00 283 -2.41 0.0727
2017-07-31 2017-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,608 0 0.00 290 12.84 0.0794
2017-04-26 2017-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,608 0 0.00 257 12.72 0.0744
2017-01-27 2016-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,608 0 0.00 228 3.17 0.0750
2016-10-24 2016-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,608 0 0.00 221 9.95 0.0766
2016-07-20 2016-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,608 1,594 157.20 201 179.17 0.0752
2016-05-13 2016-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 1,014 750 284.09 72 278.95 0.0288
2016-01-26 2015-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 264 0 0.00 19 18.75 0.0079
2015-10-29 2015-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 264 0 0.00 16 -15.79 0.0084
2015-08-14 2015-06-30 13F/A-1 QUEST DIAGNOSTICS COMMON STOCK 74834L100 264 -2,000 -88.34 19 -88.27 0.0090
2015-07-14 2015-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 264 15
2015-05-12 2015-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,264 0 0.00 162 6.58 0.0748
2015-02-24 2014-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 2,264 2,000 757.58 152 794.12 0.0786
2014-10-09 2014-09-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 264 0 0.00 17 13.33 0.0100
2014-07-14 2014-06-30 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 264 0 0.00 15 0.00 0.0091
2014-04-10 2014-03-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 264 0 0.00 15 7.14 0.0098
2014-01-27 2013-12-31 13F QUEST DIAGNOSTICS COMMON STOCK 74834L100 264 264 14 0.0099
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.