奎斯特診斷公司
US ˙ NYSE ˙ US74834L1008

SecurityDGX / Quest Diagnostics Incorporated
InstitutionStrs Ohio
Latest Disclosed Ownership2,666 shares
Latest Disclosed Value $ 522,483
Strs Ohio reports 0.15% decrease in ownership of DGX / Quest Diagnostics Incorporated

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 2,666 shares of Quest Diagnostics Incorporated (US:DGX) valued at $522,483 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 2,670 shares of Quest Diagnostics Incorporated. This represents a change in shares of -0.15% during the quarter. The current value of the position is $522,856 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.

Upgrade to unlock premium data and export to Excel .

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 COM_STK 74834L100 2,666 -4 -0.15 522 12.74 0.0021
2026-02-02 2025-12-31 13F QUEST DIAGNOSTICS COM_STK 74834L100 2,670 5 0.19 463 -8.68 0.0017
2025-10-30 2025-09-30 13F QUEST DIAGNOSTICS COM_STK 74834L100 2,665 -15,056 -84.96 508 -84.07 0.0019
2025-08-04 2025-06-30 13F QUEST DIAGNOSTICS COM_STK 74834L100 17,721 1,968 12.49 3,183 19.44 0.0119
2025-05-28 2025-03-31 13F QUEST DIAGNOSTICS COM_STK 74834L100 15,753 -7,591 -32.52 2,665 -24.31 0.0112
2025-05-28 2024-12-31 13F QUEST DIAGNOSTICS COM_STK 74834L100 23,344 8,310 55.27 3,522 50.86 0.0140
2024-11-01 2024-09-30 13F QUEST DIAGNOSTICS COM_STK 74834L100 15,034 -2,757 -15.50 2,334 -4.15 0.0090
2024-08-05 2024-06-30 13F QUEST DIAGNOSTICS COM_STK 74834L100 17,791 17,791 2,435 0.0096
2024-05-13 2024-03-31 13F QUEST DIAGNOSTICS COM 74834L100 0 -16,270 -100.00 0 -100.00
2024-01-30 2023-12-31 13F QUEST DIAGNOSTICS COM 74834L100 16,270 1,150 7.61 2 100.00 0.0093
2023-10-26 2023-09-30 13F/A-1 QUEST DIAGNOSTICS COM 74834L100 15,120 -781 -4.91 2 -50.00 0.0082
2023-10-26 2023-09-30 13F QUEST DIAGNOSTICS COM 74834L100 15,120 -781 2 0.0082
2023-07-31 2023-06-30 13F QUEST DIAGNOSTICS COM 74834L100 15,901 -2,044 -11.39 2 0.00 0.0094
2023-08-02 2023-03-31 13F/A-2 QUEST DIAGNOSTICS COM 74834L100 17,945 -2,594 -12.63 3 -33.33 0.0110
2023-08-02 2023-03-31 13F/A-1 QUEST DIAGNOSTICS COM 74834L100 17,945 -2,594 3 0.0110
2023-04-27 2023-03-31 13F QUEST DIAGNOSTICS COM 74834L100 17,945 -2,594 3 0.0131
2023-01-26 2022-12-31 13F QUEST DIAGNOSTICS COM 74834L100 20,539 3,076 17.61 3 -99.86 0.0145
2022-10-27 2022-09-30 13F QUEST DIAGNOSTICS COM 74834L100 17,463 1,618 10.21 2,142 1.66 0.0102
2022-07-25 2022-06-30 13F QUEST DIAGNOSTICS COM 74834L100 15,845 -2,799 -15.01 2,107 -17.40 0.0095
2022-04-21 2022-03-31 13F QUEST DIAGNOSTICS COM 74834L100 18,644 1,144 6.54 2,551 -15.73 0.0093
2022-01-24 2021-12-31 13F QUEST DIAGNOSTICS COM 74834L100 17,500 79 0.45 3,027 19.60 0.0105
2021-10-22 2021-09-30 13F QUEST DIAGNOSTICS COM 74834L100 17,421 13,979 406.13 2,531 457.49 0.0095
2021-07-26 2021-06-30 13F QUEST DIAGNOSTICS COM 74834L100 3,442 -118 -3.31 454 -0.44 0.0016
2021-04-23 2021-03-31 13F QUEST DIAGNOSTICS COM 74834L100 3,560 -40,435 -91.91 456 -91.30 0.0017
2021-01-25 2020-12-31 13F QUEST DIAGNOSTICS COM 74834L100 43,995 1,033 2.40 5,242 6.59 0.0202
2020-12-14 2020-09-30 13F QUEST DIAGNOSTICS COM 74834L100 42,962 -1,644 -3.69 4,918 -3.25 0.0206
2020-07-23 2020-06-30 13F QUEST DIAGNOSTICS COM 74834L100 44,606 21,308 91.46 5,083 171.82 0.0222
2020-04-23 2020-03-31 13F QUEST DIAGNOSTICS COM 74834L100 23,298 -6,788 -22.56 1,870 -41.78 0.0098
2020-01-24 2019-12-31 13F QUEST DIAGNOSTICS COM 74834L100 30,086 7,808 35.05 3,212 34.73 0.0135
2019-10-21 2019-09-30 13F/A-1 QUEST DIAGNOSTICS COM 74834L100 22,278 1,742 8.48 2,384 14.07 0.0105
2019-10-21 2019-09-30 13F QUEST DIAGNOSTICS COM 74834L100 22,278 -7,808 2,384 10,551.7162
2019-07-25 2019-06-30 13F QUEST DIAGNOSTICS COM 74834L100 20,536 1,017 5.21 2,090 19.09 0.0093
2019-04-19 2019-03-31 13F QUEST DIAGNOSTICS COM 74834L100 19,519 -1,036 -5.04 1,755 2.57 0.0080
2019-01-23 2018-12-31 13F QUEST DIAGNOSTICS COM 74834L100 20,555 -143 -0.69 1,711 -23.38 0.0087
2018-10-19 2018-09-30 13F QUEST DIAGNOSTICS COM 74834L100 20,698 1,668 8.77 2,233 6.74 0.0098
2018-08-06 2018-06-30 13F QUEST DIAGNOSTICS COM 74834L100 19,030 2,903 18.00 2,092 29.38 0.0090
2018-04-20 2018-03-31 13F QUEST DIAGNOSTICS COM 74834L100 16,127 388 2.47 1,617 4.32 0.0072
2018-01-23 2017-12-31 13F QUEST DIAGNOSTICS COM 74834L100 15,739 -3,214 -16.96 1,550 -12.63 0.0066
2017-10-23 2017-09-30 13F QUEST DIAGNOSTICS COM 74834L100 18,953 514 2.79 1,774 -13.42 0.0076
2017-07-26 2017-06-30 13F QUEST DIAGNOSTICS COM 74834L100 18,439 -7,775 -29.66 2,049 -20.37 0.0091
2017-04-26 2017-03-31 13F QUEST DIAGNOSTICS COM 74834L100 26,214 -4,117 -13.57 2,573 -7.68 0.0111
2017-01-24 2016-12-31 13F QUEST DIAGNOSTICS COM 74834L100 30,331 -6,003 -16.52 2,787 -9.34 0.0123
2016-10-27 2016-09-30 13F QUEST DIAGNOSTICS COM 74834L100 36,334 -2,554 -6.57 3,074 -2.88 0.0137
2016-07-26 2016-06-30 13F QUEST DIAGNOSTICS COM 74834L100 38,888 457 1.19 3,165 15.30 0.0141
2016-04-25 2016-03-31 13F/A-1 QUEST DIAGNOSTICS COM 74834L100 38,431 -2,184 -5.38 2,745 -4.98 0.0123
2016-01-28 2015-12-31 13F QUEST DIAGNOSTICS COM 74834L100 40,615 647 1.62 2,889 17.63 0.0129
2015-10-21 2015-09-30 13F QUEST DIAGNOSTICS COM 74834L100 39,968 5,948 17.48 2,456 -0.45 0.0117
2015-08-04 2015-06-30 13F QUEST DIAGNOSTICS COM 74834L100 34,020 27,032 386.83 2,467 359.40 0.0108
2015-04-27 2015-03-31 13F/A-1 QUEST DIAGNOSTICS COM 74834L100 6,988 392 5.94 537 21.49 0.0024
2015-04-21 2015-03-31 13F QUEST DIAGNOSTICS COM 74834L100 6,988 537
2015-01-23 2014-12-31 13F QUEST DIAGNOSTICS COM 74834L100 6,596 0 0.00 442 10.50 0.0019
2014-10-29 2014-09-30 13F/A-1 QUEST DIAGNOSTICS COM 74834L100 6,596 0 0.00 400 3.36 0.0018
2014-10-20 2014-09-30 13F QUEST DIAGNOSTICS COM 74834L100 6,596 400
2014-07-24 2014-06-30 13F QUEST DIAGNOSTICS COM 74834L100 6,596 0 0.00 387 1.31 0.0017
2014-04-28 2014-03-31 13F QUEST DIAGNOSTICS COM 74834L100 6,596 0 0.00 382 8.22 0.0017
2014-01-30 2013-12-31 13F QUEST DIAGNOSTICS COM 74834L100 6,596 -298,200 -97.84 353 -98.13 0.0016
2013-10-24 2013-09-30 13F QUEST DIAGNOSTICS COM 74834L100 304,796 -35,912 -10.54 18,833 -8.83 0.0830
2013-08-12 2013-06-30 13F QUEST DIAGNOSTICS COM 74834L100 340,708 340,708 20,657 0.0888
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.