Quest Diagnostics Incorporated
IT ˙ BIT ˙ US74834L1008
168,70 € 0,00 (0,00%)
2026-06-05
PREZZO DELLE AZIONI
SecurityIT:1QDX / Quest Diagnostics Incorporated
InstitutionBlackRock, Inc.
Latest Disclosed Ownership9,308,815 shares
Ownership 8.40%
BlackRock, Inc. ownership in 1QDX / Quest Diagnostics Incorporated

2025-04-17 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 9,308,815 shares of Quest Diagnostics Incorporated (IT:1QDX). This represents 8.4 percent ownership of the company. In their previous filing dated 2024-01-24 , BlackRock, Inc. had reported owning 10,578,025 shares, indicating a decrease of -12.00 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2025-04-17 2025-04-17 13G/A 10,578,025 9,308,815 -12.00 8.40 -10.64
2024-01-24 2024-01-24 13G/A 12,391,327 10,578,025 -14.63 9.40 -13.76
2023-01-23 2023-01-23 13G/A 12,807,624 12,391,327 -3.25 10.90 1.87
2022-04-08 2022-04-08 13G/A 11,636,382 12,807,624 10.07 10.70 12.63
2022-02-07 2022-02-07 13G/A 11,464,215 11,636,382 1.50 9.50 11.76
2021-02-01 2021-02-01 13G/A 13,093,605 11,464,215 -12.44 8.50 -12.37
2020-02-06 2020-02-06 13G/A 13,551,752 13,093,605 -3.38 9.70 -3.96
2019-04-10 2019-04-10 13G/A 13,008,315 13,551,752 4.18 10.10 5.21
2019-02-06 2019-02-06 13G/A 14,511,392 13,008,315 -10.36 9.60 -9.43
2018-02-08 2018-02-08 13G/A 16,218,277 14,511,392 -10.52 10.60 -9.40
2017-01-17 2017-01-17 13G/A 14,979,661 16,218,277 8.27 11.70 12.50
2016-01-08 2016-01-08 13G/A 14,979,661 10.40
2015-01-09 2015-01-09 13G/A 14,467,029 10.00
2014-06-09 2014-06-09 13G/A 14,449,305 10.00
2014-02-10 2014-02-10 13G/A 12,484,969 8.60
2013-02-05 2013-02-05 13G/A 10,345,730 6.51
2012-02-09 2012-02-09 13G 8,233,825 5.22

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-13 2026-03-31 13F QUEST DIAGNOSTICS COM 74834L100 9,172,292 -286,926 -3.03 1,797,586 9.51 0.0023
2026-02-12 2025-12-31 13F QUEST DIAGNOSTICS COM 74834L100 9,459,218 -542,817 -5.43 1,641,458 -13.89 0.0277
2025-11-12 2025-09-30 13F QUEST DIAGNOSTICS COM 74834L100 10,002,035 -310,940 -3.02 1,906,188 2.90 0.0334
2025-08-12 2025-06-30 13F QUEST DIAGNOSTICS COM 74834L100 10,312,975 215,665 2.14 1,852,520 8.43 0.0353
2025-05-02 2025-03-31 13F QUEST DIAGNOSTICS COM 74834L100 10,097,310 -27,367 -0.27 1,708,465 11.85 0.0359
2025-02-07 2024-12-31 13F QUEST DIAGNOSTICS COM 74834L100 10,124,677 -13,469 -0.13 1,527,409 -2.96 0.0309
2024-11-13 2024-09-30 13F QUEST DIAGNOSTICS COM 74834L100 10,138,146 78,743 0.78 1,573,947 14.31 0.0330
2024-08-13 2024-06-30 13F QUEST DIAGNOSTICS COM 74834L100 10,059,403 -641,170 -5.99 1,376,931 -3.33 0.0312
2024-05-10 2024-03-31 13F QUEST DIAGNOSTICS COM 74834L100 10,700,573 122,205 1.16 1,424,353 -2.34 0.0332
2024-02-13 2023-12-31 13F QUEST DIAGNOSTICS COM 74834L100 10,578,368 -808,138 -7.10 1,458,545 5.12 0.0372
2023-11-13 2023-09-30 13F QUEST DIAGNOSTICS COM 74834L100 11,386,506 -355,945 -3.03 1,387,560 -15.93 0.0399
2023-08-11 2023-06-30 13F QUEST DIAGNOSTICS COM 74834L100 11,742,451 -198,606 -1.66 1,650,519 -2.30 0.0455
2023-05-12 2023-03-31 13F QUEST DIAGNOSTICS COM 74834L100 11,941,057 -450,613 -3.64 1,689,421 -12.85 0.0498
2023-02-13 2022-12-31 13F QUEST DIAGNOSTICS COM 74834L100 12,391,670 -306,246 -2.41 1,938,553 24.43 0.0607
2022-11-14 2022-09-30 13F QUEST DIAGNOSTICS COM 74834L100 12,697,916 -744,709 -5.54 1,557,908 -12.85 0.0530
2022-08-12 2022-06-30 13F QUEST DIAGNOSTICS COM 74834L100 13,442,625 635,001 4.96 1,787,601 1.98 0.0573
2022-05-12 2022-03-31 13F QUEST DIAGNOSTICS COM 74834L100 12,807,624 1,171,242 10.07 1,752,852 -12.93 0.0472
2022-02-10 2021-12-31 13F QUEST DIAGNOSTICS COM 74834L100 11,636,382 11,137 0.10 2,013,209 19.18 0.0513
2021-11-09 2021-09-30 13F QUEST DIAGNOSTICS COM 74834L100 11,625,245 806,359 7.45 1,689,266 18.32 0.0473
2021-08-11 2021-06-30 13F QUEST DIAGNOSTICS COM 74834L100 10,818,886 -882,228 -7.54 1,427,769 -4.92 0.0397
2021-05-07 2021-03-31 13F QUEST DIAGNOSTICS COM 74834L100 11,701,114 236,899 2.07 1,501,723 9.92 0.0441
2021-02-05 2020-12-31 13F QUEST DIAGNOSTICS COM 74834L100 11,464,215 113,416 1.00 1,366,191 5.13 0.0436
2020-11-06 2020-09-30 13F QUEST DIAGNOSTICS COM 74834L100 11,350,799 -306,089 -2.63 1,299,552 -2.17 0.0480
2020-08-14 2020-06-30 13F QUEST DIAGNOSTICS COM 74834L100 11,656,888 -1,203,521 -9.36 1,328,420 28.64 0.0530
2020-05-01 2020-03-31 13F QUEST DIAGNOSTICS COM 74834L100 12,860,409 -233,196 -1.78 1,032,692 -26.14 0.0505
2020-02-13 2019-12-31 13F QUEST DIAGNOSTICS COM 74834L100 13,093,605 118,829 0.92 1,398,269 0.69 0.0536
2019-11-08 2019-09-30 13F QUEST DIAGNOSTICS COM 74834L100 12,974,776 599,218 4.84 1,388,690 10.22 0.0583
2019-08-22 2019-06-30 13F/A-1 QUEST DIAGNOSTICS COM 74834L100 12,375,558 -1,176,194 -8.68 1,259,955 3.40 0.0539
2019-08-13 2019-06-30 13F QUEST DIAGNOSTICS COM 74834L100 12,375,558 -1,176,194 1,259,955
2019-05-09 2019-03-31 13F QUEST DIAGNOSTICS COM 74834L100 13,551,752 543,437 4.18 1,218,576 12.50 0.0544
2019-02-08 2018-12-31 13F QUEST DIAGNOSTICS COM 74834L100 13,008,315 -769,052 -5.58 1,083,203 -27.14 0.0547
2018-11-09 2018-09-30 13F QUEST DIAGNOSTICS COM 74834L100 13,777,367 -1,126,972 -7.56 1,486,716 -9.27 0.0643
2018-08-09 2018-06-30 13F QUEST DIAGNOSTICS COM 74834L100 14,904,339 -678,136 -4.35 1,638,581 4.84 0.0755
2018-05-09 2018-03-31 13F QUEST DIAGNOSTICS COM 74834L100 15,582,475 1,071,083 7.38 1,562,924 9.35 0.0747
2018-02-09 2017-12-31 13F QUEST DIAGNOSTICS COM 74834L100 14,511,392 -447,554 -2.99 1,429,224 2.03 0.0680
2017-11-14 2017-09-30 13F QUEST DIAGNOSTICS COM 74834L100 14,958,946 -48,560 -0.32 1,400,759 -16.03 0.0707
2017-08-10 2017-06-30 13F QUEST DIAGNOSTICS COM 74834L100 15,007,506 -354,912 -2.31 1,668,237 10.59 0.0885
2017-05-12 2017-03-31 13F QUEST DIAGNOSTICS COM 74834L100 15,362,418 14,801,397 2,638.30 1,508,435 2,825.71 0.0828
2017-02-10 2016-12-31 13F QUEST DIAGNOSTICS COM 74834L100 561,021 160,991 40.24 51,558 52.29 0.0730
2016-11-08 2016-09-30 13F QUEST DIAGNOSTICS COM 74834L100 400,030 17,927 4.69 33,855 8.83 0.0486
2016-08-10 2016-06-30 13F QUEST DIAGNOSTICS COM 74834L100 382,103 86,920 29.45 31,108 47.49 0.0468
2016-05-10 2016-03-31 13F QUEST DIAGNOSTICS COM 74834L100 295,183 -127,171 -30.11 21,091 -29.80 0.0339
2016-02-11 2015-12-31 13F QUEST DIAGNOSTICS COM 74834L100 422,354 -57,394 -11.96 30,046 1.89 0.0441
2015-11-13 2015-09-30 13F QUEST DIAGNOSTICS COM 74834L100 479,748 24,774 5.45 29,490 -10.62 0.0462
2015-08-07 2015-06-30 13F QUEST DIAGNOSTICS COM 74834L100 454,974 -10,619 -2.28 32,995 -7.79 0.0489
2015-05-13 2015-03-31 13F QUEST DIAGNOSTICS COM 74834L100 465,593 91,388 24.42 35,781 42.59 0.0495
2015-02-09 2014-12-31 13F QUEST DIAGNOSTICS COM 74834L100 374,205 4,558 1.23 25,094 11.87 0.0359
2014-10-29 2014-09-30 13F QUEST DIAGNOSTICS COM 74834L100 369,647 -37,596 -9.23 22,431 -6.15 0.0328
2014-08-06 2014-06-30 13F QUEST DIAGNOSTICS COM 74834L100 407,243 12,337 3.12 23,901 4.49 0.0355
2014-05-02 2014-03-31 13F QUEST DIAGNOSTICS COM 74834L100 394,906 -16,514 -4.01 22,873 3.84 0.0369
2014-02-12 2013-12-31 13F QUEST DIAGNOSTICS COM 74834L100 411,420 66,787 19.38 22,028 3.45 0.0360
2013-11-12 2013-09-30 13F QUEST DIAGNOSTICS COM 74834L100 344,633 14,140 4.28 21,294 6.27 0.0401
2013-08-13 2013-06-30 13F QUEST DIAGNOSTICS COM 74834L100 330,493 330,493 20,038 0.0397
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.