SEI Investments’s Quest Diagnostics DGX Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$22.3M Buy
105,415
+25,827
+32% +$5.07M 0.02% 764
2026
Q1
$15.6M Buy
79,588
+8,025
+11% +$1.56M 0.01% 904
2025
Q4
$12.4M Sell
71,563
-6,734
-9% -$1.23M 0.01% 958
2025
Q3
$14.9M Buy
78,297
+166
+0.2% +$29.5K 0.02% 845
2025
Q2
$14M Sell
78,131
-68,505
-47% -$11.9M 0.02% 845
2025
Q1
$24.8M Sell
146,636
-11,690
-7% -$1.92M 0.03% 583
2024
Q4
$23.9M Sell
158,326
-20,255
-11% -$3.15M 0.03% 598
2024
Q3
$27.7M Sell
178,581
-35,598
-17% -$5.32M 0.04% 530
2024
Q2
$29.3M Sell
214,179
-64,926
-23% -$8.89M 0.04% 443
2024
Q1
$37.2M Buy
279,105
+33,080
+13% +$4.29M 0.05% 378
2023
Q4
$33.9M Buy
246,025
+1,886
+0.8% +$248K 0.05% 376
2023
Q3
$29.8M Buy
244,139
+17,047
+8% +$2.27M 0.05% 380
2023
Q2
$31.9M Buy
227,092
+19,256
+9% +$2.65M 0.06% 376
2023
Q1
$29.4M Buy
207,836
+66,026
+47% +$9.45M 0.05% 393
2022
Q4
$22.2M Sell
141,810
-83,581
-37% -$12M 0.05% 424
2022
Q3
$27.7M Buy
225,391
+21,482
+11% +$2.83M 0.06% 354
2022
Q2
$27.1M Buy
203,909
+12,861
+7% +$1.75M 0.06% 364
2022
Q1
$26.2M Buy
191,048
+34,364
+22% +$4.79M 0.05% 394
2021
Q4
$27.1M Buy
156,684
+9,752
+7% +$1.48M 0.05% 379
2021
Q3
$21.3M Sell
146,932
-12,581
-8% -$1.84M 0.04% 427
2021
Q2
$21.1M Buy
159,513
+45,396
+40% +$5.94M 0.05% 398
2021
Q1
$14.6M Buy
114,117
+22,858
+25% +$2.82M 0.04% 499
2020
Q4
$10.9M Buy
91,259
+12,076
+15% +$1.47M 0.03% 597
2020
Q3
$9.07M Sell
79,183
-2,879
-4% -$340K 0.03% 587
2020
Q2
$9.35M Sell
82,062
-31,672
-28% -$3.36M 0.03% 572
2020
Q1
$9.14M Sell
113,734
-19,478
-15% -$2.02M 0.03% 499
2019
Q4
$14.3M Sell
133,212
-107,556
-45% -$11.2M 0.04% 433
2019
Q3
$25.8M Buy
240,768
+47,231
+24% +$4.85M 0.07% 269
2019
Q2
$19.7M Sell
193,537
-48,207
-20% -$4.63M 0.06% 305
2019
Q1
$21.8M Buy
241,744
+86,404
+56% +$7.49M 0.07% 274
2018
Q4
$16.7M Buy
155,340
+999
+0.6% +$93.7K 0.06% 353
2018
Q3
$16.7M Sell
154,341
-9,570
-6% -$1.05M 0.06% 333
2018
Q2
$18M Sell
163,911
-59,418
-27% -$6.19M 0.06% 330
2018
Q1
$22.4M Buy
223,329
+14,039
+7% +$1.44M 0.09% 242
2017
Q4
$20.6M Buy
209,290
+6,147
+3% +$583K 0.07% 301
2017
Q3
$19M Buy
203,143
+38,477
+23% +$4.08M 0.07% 323
2017
Q2
$18.3M Sell
164,666
-23,683
-13% -$2.5M 0.07% 319
2017
Q1
$18.5M Sell
188,349
-6,328
-3% -$603K 0.08% 288
2016
Q4
$17.9M Sell
194,677
-63,723
-25% -$5.49M 0.09% 283
2016
Q3
$21.9M Sell
258,400
-115,881
-31% -$9.73M 0.11% 219
2016
Q2
$30.5M Buy
374,281
+27,087
+8% +$2.06M 0.18% 132
2016
Q1
$24.8M Sell
347,194
-51,817
-13% -$3.48M 0.15% 163
2015
Q4
$28.4M Buy
399,011
+56,517
+17% +$3.8M 0.17% 143
2015
Q3
$21.1M Buy
342,494
+86,725
+34% +$6.06M 0.19% 121
2015
Q2
$18.5M Buy
255,769
+4,377
+2% +$323K 0.17% 146
2015
Q1
$19.3M Sell
251,392
-19,051
-7% -$1.36M 0.17% 147
2014
Q4
$18.1M Buy
+270,443
New +$17.1M 0.16% 165

Other funds holding DGX

SEI Investments's DGX Position: Q2 2026 in Review

SEI Investments increased its Quest Diagnostics (DGX) stake by 32% in Q2 2026, buying an estimated $5.07M and bringing the position to 105,415 shares worth $22.3M. The position accounts for 0.02% of the portfolio, ranked #764.

SEI Investments first reported a position in DGX in Q4 2014 and has held it in 47 quarters since. The position peaked at $37.2M in Q1 2024. 1,100 funds tracked by Wall St. Rank hold DGX as of Q2 2026.

  • SEI Investments held 105,415 shares of Quest Diagnostics worth $22.3M as of Q2 2026.
  • SEI Investments bought 25,827 Quest Diagnostics shares in Q2 2026, an estimated $5.07M.
  • Quest Diagnostics made up 0.02% of SEI Investments's portfolio in Q2 2026, its #764 holding.
  • SEI Investments first reported a position in Quest Diagnostics in Q4 2014 and has held it in 47 quarters since.
  • SEI Investments's Quest Diagnostics position peaked at $37.2M in Q1 2024.
  • 1,100 funds tracked by Wall St. Rank held Quest Diagnostics as of Q2 2026.

Based on SEI Investments's 13F filing for Q2 2026, filed 14 Aug 2026.