State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Quest Diagnostics DGX Stock Holding History

State of Wisconsin Investment Board’s Portfolio DGX Stock Details DGX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$14.9M Sell
70,103
-3,252
-4% -$638K 0.03% 489
2026
Q1 		$14.4M Sell
73,355
-2,914
-4% -$566K 0.03% 488
2025
Q4 		$13.2M Sell
76,269
-8,139
-10% -$1.48M 0.03% 541
2025
Q3 		$16.1M Sell
84,408
-5,263
-6% -$934K 0.04% 427
2025
Q2 		$16.1M Sell
89,671
-1,755
-2% -$305K 0.04% 411
2025
Q1 		$15.5M Buy
91,426
+15,026
+20% +$2.47M 0.04% 415
2024
Q4 		$11.5M Buy
76,400
+443
+0.6% +$68.9K 0.03% 565
2024
Q3 		$11.8M Buy
75,957
+4,108
+6% +$614K 0.03% 557
2024
Q2 		$9.83M Sell
71,849
-5,392
-7% -$738K 0.03% 604
2024
Q1 		$10.3M Buy
77,241
+11,951
+18% +$1.55M 0.03% 607
2023
Q4 		$9M Sell
65,290
-6,378
-9% -$839K 0.03% 675
2023
Q3 		$8.73M Sell
71,668
-662
-0.9% -$88.2K 0.03% 638
2023
Q2 		$10.2M Buy
72,330
+1,689
+2% +$233K 0.03% 598
2023
Q1 		$9.99M Buy
70,641
+5,613
+9% +$803K 0.03% 583
2022
Q4 		$10.2M Sell
65,028
-7,430
-10% -$1.07M 0.03% 563
2022
Q3 		$8.89M Sell
72,458
-14,568
-17% -$1.92M 0.03% 618
2022
Q2 		$11.6M Sell
87,026
-9,166
-10% -$1.25M 0.03% 573
2022
Q1 		$13.2M Sell
96,192
-2,270
-2% -$316K 0.03% 644
2021
Q4 		$17M Buy
98,462
+27,329
+38% +$4.16M 0.03% 543
2021
Q3 		$10.3M Buy
71,133
+7,896
+12% +$1.16M 0.02% 737
2021
Q2 		$8.35M Sell
63,237
-80,253
-56% -$10.5M 0.02% 852
2021
Q1 		$18.4M Buy
143,490
+613
+0.4% +$75.5K 0.04% 466
2020
Q4 		$17M Sell
142,877
-67,012
-32% -$8.17M 0.04% 461
2020
Q3 		$24M Buy
209,889
+127,133
+154% +$15M 0.06% 326
2020
Q2 		$9.43M Sell
82,756
-20,244
-20% -$2.15M 0.03% 614
2020
Q1 		$8.27M Buy
103,000
+5,194
+5% +$538K 0.03% 580
2019
Q4 		$10.4M Buy
97,806
+136
+0.1% +$14.2K 0.03% 660
2019
Q3 		$10.5M Buy
97,670
+81,295
+496% +$8.35M 0.03% 591
2019
Q2 		$1.67M Sell
16,375
-108,037
-87% -$10.4M ﹤0.01% 1046
2019
Q1 		$11.2M Buy
124,412
+7,980
+7% +$691K 0.03% 570
2018
Q4 		$9.7M Sell
116,432
-7,220
-6% -$677K 0.03% 542
2018
Q3 		$13.3M Sell
123,652
-8,811
-7% -$966K 0.04% 507
2018
Q2 		$14.6M Buy
132,463
+7,063
+6% +$736K 0.04% 474
2018
Q1 		$12.6M Buy
125,400
+44,574
+55% +$4.57M 0.04% 523
2017
Q4 		$7.96M Sell
80,826
-42,052
-34% -$3.99M 0.02% 729
2017
Q3 		$11.5M Buy
122,878
+79
+0.1% +$8.39K 0.03% 529
2017
Q2 		$13.7M Buy
122,799
+28,360
+30% +$3M 0.04% 441
2017
Q1 		$9.27M Buy
94,439
+16,955
+22% +$1.62M 0.04% 544
2016
Q4 		$7.12M Sell
77,484
-99,195
-56% -$8.55M 0.03% 606
2016
Q3 		$15M Sell
176,679
-3,700
-2% -$311K 0.06% 361
2016
Q2 		$14.7M Sell
180,379
-7,820
-4% -$595K 0.06% 361
2016
Q1 		$13.4M Sell
188,199
-54,260
-22% -$3.64M 0.05% 400
2015
Q4 		$17.2M Sell
242,459
-53,080
-18% -$3.57M 0.07% 334
2015
Q3 		$18.2M Buy
295,539
+185,250
+168% +$12.9M 0.07% 333
2015
Q2 		$8M Buy
110,289
+580
+0.5% +$42.8K 0.03% 646
2015
Q1 		$8.43M Sell
109,709
-3,010
-3% -$216K 0.03% 626
2014
Q4 		$7.56M Buy
112,719
+6,440
+6% +$406K 0.03% 655
2014
Q3 		$6.45M Buy
106,279
+710
+0.7% +$43.7K 0.02% 706
2014
Q2 		$6.2M Buy
105,569
+1,610
+2% +$94.3K 0.02% 743
2014
Q1 		$6.02M Buy
103,959
+180
+0.2% +$9.65K 0.02% 748
2013
Q4 		$5.56M Buy
103,779
+12,580
+14% +$746K 0.02% 750
2013
Q3 		$5.63M Sell
91,199
-34,010
-27% -$2.04M 0.02% 743
2013
Q2 		$7.59M Buy
+125,209
New +$7.46M 0.03% 642

Other funds holding DGX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
EIG
EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return

State of Wisconsin Investment Board's DGX Position: Q2 2026 in Review

State of Wisconsin Investment Board reduced its Quest Diagnostics (DGX) stake by 4.4% in Q2 2026, selling an estimated $638K and leaving 70,103 shares worth $14.9M. The position accounts for 0.03% of the portfolio, ranked #489.

State of Wisconsin Investment Board first reported a position in DGX in Q2 2013 and has held it in 53 quarters since. The position peaked at $24M in Q3 2020. 1,099 funds tracked by Wall St. Rank hold DGX as of Q2 2026.

  • State of Wisconsin Investment Board held 70,103 shares of Quest Diagnostics worth $14.9M as of Q2 2026.
  • State of Wisconsin Investment Board sold 3,252 Quest Diagnostics shares in Q2 2026, an estimated $638K.
  • Quest Diagnostics made up 0.03% of State of Wisconsin Investment Board's portfolio in Q2 2026, its #489 holding.
  • State of Wisconsin Investment Board first reported a position in Quest Diagnostics in Q2 2013 and has held it in 53 quarters since.
  • State of Wisconsin Investment Board's Quest Diagnostics position peaked at $24M in Q3 2020.
  • 1,099 funds tracked by Wall St. Rank held Quest Diagnostics as of Q2 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.