Quest Diagnostics Incorporated
US ˙ NYSE ˙ US74834L1008

SecurityDGX / Quest Diagnostics Incorporated
InstitutionFiduciary Trust Co
Latest Disclosed Ownership4,239 shares
Latest Disclosed Value $ 830,683
Fiduciary Trust Co reports 2.62% decrease in ownership of DGX / Quest Diagnostics Incorporated

On May 15, 2026 - Fiduciary Trust Co filed a 13F-HR form disclosing ownership of 4,239 shares of Quest Diagnostics Incorporated (US:DGX) valued at $830,759 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,353 shares of Quest Diagnostics Incorporated. This represents a change in shares of -2.62% during the quarter. The current value of the position is $849,029 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)
2026-05-15 2026-03-31 13F QUEST DIAGNOSTICS COM 74834L100 4,239 -114 -2.62 831 9.93 0.0057
2026-02-13 2025-12-31 13F QUEST DIAGNOSTICS COM 74834L100 4,353 -263 -5.70 755 -14.11 0.0086
2025-11-14 2025-09-30 13F QUEST DIAGNOSTICS COM 74834L100 4,616 -109 -2.31 880 3.66 0.0100
2025-08-14 2025-06-30 13F QUEST DIAGNOSTICS COM 74834L100 4,725 -223 -4.51 849 1.31 0.0104
2025-05-15 2025-03-31 13F QUEST DIAGNOSTICS COM 74834L100 4,948 488 10.94 837 24.55 0.0110
2025-02-14 2024-12-31 13F QUEST DIAGNOSTICS COM 74834L100 4,460 0 0.00 673 -2.89 0.0089
2024-11-14 2024-09-30 13F QUEST DIAGNOSTICS COM 74834L100 4,460 60 1.36 692 14.95 0.0097
2024-08-14 2024-06-30 13F QUEST DIAGNOSTICS COM 74834L100 4,400 -250 -5.38 602 -2.59 0.0090
2024-05-14 2024-03-31 13F QUEST DIAGNOSTICS COM 74834L100 4,650 -190 -3.93 619 -7.35 0.0095
2024-02-12 2023-12-31 13F QUEST DIAGNOSTICS COM 74834L100 4,840 2 0.04 667 13.24 0.0111
2023-11-14 2023-09-30 13F QUEST DIAGNOSTICS COM 74834L100 4,838 -266 -5.21 590 -17.85 0.0108
2023-08-01 2023-06-30 13F QUEST DIAGNOSTICS COM 74834L100 5,104 6 0.12 717 -0.55 0.0126
2023-05-15 2023-03-31 13F QUEST DIAGNOSTICS COM 74834L100 5,098 0 0.00 721 -9.54 0.0134
2023-02-14 2022-12-31 13F QUEST DIAGNOSTICS COM 74834L100 5,098 471 10.18 798 40.56 0.0155
2022-11-14 2022-09-30 13F QUEST DIAGNOSTICS COM 74834L100 4,627 400 9.46 567 0.89 0.0123
2022-08-12 2022-06-30 13F QUEST DIAGNOSTICS COM 74834L100 4,227 -1 -0.02 562 -2.94 0.0118
2022-05-12 2022-03-31 13F QUEST DIAGNOSTICS COM 74834L100 4,228 -1 -0.02 579 -20.79 0.0104
2022-02-14 2021-12-31 13F QUEST DIAGNOSTICS COM 74834L100 4,229 0 0.00 731 19.06 0.0120
2021-11-12 2021-09-30 13F QUEST DIAGNOSTICS COM 74834L100 4,229 -166 -3.78 614 5.86 0.0109
2021-08-16 2021-06-30 13F QUEST DIAGNOSTICS COM 74834L100 4,395 500 12.84 580 16.23 0.0112
2021-05-19 2021-03-31 13F QUEST DIAGNOSTICS COM 74834L100 3,895 0 0.00 499 7.54 0.0101
2021-01-26 2020-12-31 13F QUEST DIAGNOSTICS COM 74834L100 3,895 0 0.00 464 4.04 0.0097
2020-11-13 2020-09-30 13F QUEST DIAGNOSTICS COM 74834L100 3,895 -15 -0.38 446 0.00 0.0105
2020-08-13 2020-06-30 13F QUEST DIAGNOSTICS COM 74834L100 3,910 46 1.19 446 43.87 0.0110
2020-05-15 2020-03-31 13F QUEST DIAGNOSTICS COM 74834L100 3,864 9 0.23 310 -24.76 0.0090
2020-02-04 2019-12-31 13F QUEST DIAGNOSTICS COM 74834L100 3,855 -2 -0.05 412 -0.24 0.0096
2019-11-12 2019-09-30 13F QUEST DIAGNOSTICS COM 74834L100 3,857 -200 -4.93 413 0.00 0.0104
2019-08-14 2019-06-30 13F QUEST DIAGNOSTICS COM 74834L100 4,057 400 10.94 413 25.53 0.0108
2019-05-07 2019-03-31 13F QUEST DIAGNOSTICS COM 74834L100 3,657 -3 -0.08 329 7.87 0.0088
2019-01-29 2018-12-31 13F QUEST DIAGNOSTICS COM 74834L100 3,660 -13 -0.35 305 -23.17 0.0093
2018-11-13 2018-09-30 13F QUEST DIAGNOSTICS COM 74834L100 3,673 0 0.00 397 -1.73 0.0111
2018-08-03 2018-06-30 13F QUEST DIAGNOSTICS COM 74834L100 3,673 -200 -5.16 404 4.12 0.0122
2018-05-07 2018-03-31 13F QUEST DIAGNOSTICS COM 74834L100 3,873 1,213 45.60 388 48.09 0.0120
2018-01-29 2017-12-31 13F QUEST DIAGNOSTICS COM 74834L100 2,660 0 0.00 262 5.22 0.0078
2017-11-02 2017-09-30 13F QUEST DIAGNOSTICS COM 74834L100 2,660 0 0.00 249 -15.59 0.0077
2017-08-09 2017-06-30 13F QUEST DIAGNOSTICS COM 74834L100 2,660 0 0.00 295 13.03 0.0090
2017-05-15 2017-03-31 13F QUEST DIAGNOSTICS COM 74834L100 2,660 0 0.00 261 6.53 0.0080
2017-02-14 2016-12-31 13F QUEST DIAGNOSTICS COM 74834L100 2,660 0 0.00 245 8.89 0.0079
2016-11-14 2016-09-30 13F QUEST DIAGNOSTICS COM 74834L100 2,660 0 0.00 225 3.69 0.0077
2016-08-12 2016-06-30 13F QUEST DIAGNOSTICS COM 74834L100 2,660 -220 -7.64 217 5.34 0.0076
2016-05-16 2016-03-31 13F QUEST DIAGNOSTICS COM 74834L100 2,880 5 0.17 206 0.49 0.0073
2016-02-03 2015-12-31 13F QUEST DIAGNOSTICS INC COM COMMON 74834L100 2,875 2,875 0.00 205 0.0087
2015-11-10 2015-09-30 13F QUEST DIAGNOSTICS INC COM Common 74834L100 0 -2,960 -100.00 0 -100.00
2015-08-10 2015-06-30 13F QUEST DIAGNOSTICS INC COM Common 74834L100 2,960 -80 -2.63 215 -8.12 0.0089
2015-04-28 2015-03-31 13F QUEST DIAGNOSTICS INC COM COMMON 74834L100 3,040 0 0.00 234 14.71 0.0097
2015-01-26 2014-12-31 13F QUEST DIAGNOSTICS INC COM Common 74834L100 3,040 3,040 204 0.0086
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.