William Blair & Company
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William Blair & Company’s Labcorp LH Stock Holding History

William Blair & Company’s Portfolio LH Stock Details LH Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$3.23M Buy
12,113
+362
+3% +$98K 0.01% 608
2025
Q4 		$2.95M Buy
11,751
+54
+0.5% +$14.3K 0.01% 646
2025
Q3 		$3.36M Buy
11,697
+7,675
+191% +$2.06M 0.01% 611
2025
Q2 		$1.06M Sell
4,022
-344
-8% -$83.8K ﹤0.01% 884
2025
Q1 		$1.02M Buy
4,366
+3
+0.1% +$728 ﹤0.01% 879
2024
Q4 		$1M Sell
4,363
-251
-5% -$57.6K ﹤0.01% 906
2024
Q3 		$1.03M Sell
4,614
-3
-0.1% -$659 ﹤0.01% 897
2024
Q2 		$940K Sell
4,617
-323
-7% -$65.7K ﹤0.01% 899
2024
Q1 		$1.08M Sell
4,940
-221
-4% -$48.7K ﹤0.01% 839
2023
Q4 		$1.17M Buy
5,161
+424
+9% +$89.1K ﹤0.01% 809
2023
Q3 		$952K Sell
4,737
-1,040
-18% -$219K ﹤0.01% 856
2023
Q2 		$1.2M Sell
5,777
-5,034
-47% -$977K ﹤0.01% 791
2023
Q1 		$2.13M Buy
10,811
+362
+3% +$74.5K 0.01% 641
2022
Q4 		$2.11M Buy
10,449
+1
+0% +$195 0.01% 616
2022
Q3 		$1.84M Buy
10,448
+703
+7% +$144K 0.01% 638
2022
Q2 		$1.96M Buy
9,745
+4,652
+91% +$992K 0.01% 646
2022
Q1 		$1.15M Sell
5,093
-138
-3% -$32.5K ﹤0.01% 870
2021
Q4 		$1.41M Sell
5,231
-336
-6% -$83.2K ﹤0.01% 831
2021
Q3 		$1.35M Sell
5,567
-182
-3% -$45.9K ﹤0.01% 811
2021
Q2 		$1.36M Sell
5,749
-83
-1% -$18.9K ﹤0.01% 818
2021
Q1 		$1.28M Buy
5,832
+212
+4% +$42.5K ﹤0.01% 821
2020
Q4 		$983K Sell
5,620
-115
-2% -$19.9K ﹤0.01% 856
2020
Q3 		$928K Sell
5,735
-708
-11% -$112K ﹤0.01% 778
2020
Q2 		$919K Buy
6,443
+476
+8% +$65.9K ﹤0.01% 743
2020
Q1 		$648K Buy
5,967
+1,402
+31% +$202K ﹤0.01% 800
2019
Q4 		$663K Sell
4,565
-434
-9% -$62.7K ﹤0.01% 898
2019
Q3 		$722K Buy
4,999
+214
+4% +$31.2K ﹤0.01% 837
2019
Q2 		$711K Buy
4,785
+662
+16% +$92.4K ﹤0.01% 865
2019
Q1 		$542K Sell
4,123
-95
-2% -$11.7K ﹤0.01% 940
2018
Q4 		$458K Buy
4,218
+2,207
+110% +$296K ﹤0.01% 934
2018
Q3 		$300K Buy
2,011
+116
+6% +$17.6K ﹤0.01% 1142
2018
Q2 		$292K Buy
1,895
+27
+1% +$4.08K ﹤0.01% 1136
2018
Q1 		$260K Sell
1,868
-441
-19% -$64.8K ﹤0.01% 1124
2017
Q4 		$316K Hold
2,309
– – ﹤0.01% 1111
2017
Q3 		$300K Buy
2,309
+237
+11% +$31.6K ﹤0.01% 1102
2017
Q2 		$274K Buy
2,072
+210
+11% +$25.7K ﹤0.01% 1231
2017
Q1 		$228K Sell
1,862
-3
-0.2% -$355 ﹤0.01% 1180
2016
Q4 		$206K Sell
1,865
-13,779
-88% -$1.53M ﹤0.01% 1153
2016
Q3 		$1.85M Buy
15,644
+1,081
+7% +$127K 0.02% 509
2016
Q2 		$1.63M Sell
14,563
-4,617
-24% -$497K 0.02% 510
2016
Q1 		$1.93M Buy
19,180
+11,207
+141% +$1.07M 0.02% 462
2015
Q4 		$847K Buy
7,973
+1,797
+29% +$185K 0.01% 667
2015
Q3 		$575K Sell
6,176
-1,765
-22% -$183K 0.01% 922
2015
Q2 		$827K Sell
7,941
-614
-7% -$63.9K ﹤0.01% 1624
2015
Q1 		$927K Sell
8,555
-1,332
-13% -$137K ﹤0.01% 1569
2014
Q4 		$916K Buy
9,887
+1,261
+15% +$111K ﹤0.01% 1526
2014
Q3 		$754K Sell
8,626
-1,892
-18% -$171K ﹤0.01% 1568
2014
Q2 		$925K Sell
10,518
-38
-0.4% -$3.29K ﹤0.01% 1488
2014
Q1 		$890K Hold
10,556
– – ﹤0.01% 1462
2013
Q4 		$828K Buy
10,556
+2,314
+28% +$197K ﹤0.01% 1440
2013
Q3 		$702K Buy
8,242
+340
+4% +$28.6K ﹤0.01% 1445
2013
Q2 		$680K Buy
+7,902
New +$656K ﹤0.01% 1404

Other funds holding LH

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Select Equity Group
Select Equity Group New York $19.5B AUM 17.33% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

William Blair & Company's LH Position: Q1 2026 in Review

William Blair & Company increased its Labcorp (LH) stake by 3.1% in Q1 2026, buying an estimated $98K and bringing the position to 12,113 shares worth $3.23M. The position accounts for 0.01% of the portfolio, ranked #608.

William Blair & Company first reported a position in LH in Q2 2013 and has held it in 52 quarters since. The position peaked at $3.36M in Q3 2025. 1,031 funds tracked by Wall St. Rank hold LH as of Q1 2026.

  • William Blair & Company held 12,113 shares of Labcorp worth $3.23M as of Q1 2026.
  • William Blair & Company bought 362 Labcorp shares in Q1 2026, an estimated $98K.
  • Labcorp made up 0.01% of William Blair & Company's portfolio in Q1 2026, its #608 holding.
  • William Blair & Company first reported a position in Labcorp in Q2 2013 and has held it in 52 quarters since.
  • William Blair & Company's Labcorp position peaked at $3.36M in Q3 2025.
  • 1,031 funds tracked by Wall St. Rank held Labcorp as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.