William Blair & Company’s Thermo Fisher Scientific TMO Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$55M Sell
135,555
-5,255
-4% -$2.13M 0.15% 132
2025
Q1
$70.1M Sell
140,810
-4,056
-3% -$2.02M 0.21% 108
2024
Q4
$75.4M Sell
144,866
-1,547
-1% -$805K 0.22% 105
2024
Q3
$90.6M Sell
146,413
-2,561
-2% -$1.58M 0.27% 89
2024
Q2
$82.4M Sell
148,974
-3,298
-2% -$1.82M 0.25% 91
2024
Q1
$88.5M Sell
152,272
-944
-0.6% -$549K 0.28% 89
2023
Q4
$81.3M Sell
153,216
-2,072
-1% -$1.1M 0.28% 86
2023
Q3
$78.6M Buy
155,288
+2,483
+2% +$1.26M 0.3% 78
2023
Q2
$79.7M Sell
152,805
-4,929
-3% -$2.57M 0.29% 81
2023
Q1
$90.9M Sell
157,734
-983
-0.6% -$567K 0.36% 69
2022
Q4
$87.4M Sell
158,717
-504
-0.3% -$278K 0.38% 64
2022
Q3
$80.8M Buy
159,221
+2,474
+2% +$1.25M 0.37% 69
2022
Q2
$85.2M Buy
156,747
+7,449
+5% +$4.05M 0.38% 63
2022
Q1
$88.2M Sell
149,298
-3,656
-2% -$2.16M 0.31% 79
2021
Q4
$102M Buy
152,954
+2,189
+1% +$1.46M 0.32% 74
2021
Q3
$86.1M Sell
150,765
-1,289
-0.8% -$736K 0.29% 82
2021
Q2
$76.7M Sell
152,054
-2,309
-1% -$1.16M 0.27% 88
2021
Q1
$70.4M Buy
154,363
+1,814
+1% +$828K 0.27% 85
2020
Q4
$71.1M Buy
152,549
+12,135
+9% +$5.65M 0.26% 88
2020
Q3
$62M Buy
140,414
+6,253
+5% +$2.76M 0.26% 85
2020
Q2
$48.6M Buy
134,161
+5,244
+4% +$1.9M 0.23% 94
2020
Q1
$36.6M Sell
128,917
-793
-0.6% -$225K 0.23% 96
2019
Q4
$42.1M Sell
129,710
-3,468
-3% -$1.13M 0.22% 107
2019
Q3
$38.8M Sell
133,178
-1,711
-1% -$498K 0.22% 101
2019
Q2
$39.6M Buy
134,889
+3,019
+2% +$887K 0.23% 102
2019
Q1
$36.1M Sell
131,870
-4,238
-3% -$1.16M 0.22% 105
2018
Q4
$30.5M Sell
136,108
-4,280
-3% -$958K 0.22% 110
2018
Q3
$34.3M Buy
140,388
+2,805
+2% +$685K 0.21% 113
2018
Q2
$28.5M Buy
137,583
+10,085
+8% +$2.09M 0.19% 123
2018
Q1
$26.3M Buy
127,498
+874
+0.7% +$180K 0.19% 120
2017
Q4
$24M Buy
126,624
+4,641
+4% +$881K 0.16% 140
2017
Q3
$23.1M Buy
121,983
+604
+0.5% +$114K 0.17% 136
2017
Q2
$21.2M Sell
121,379
-16,297
-12% -$2.84M 0.16% 150
2017
Q1
$21.4M Buy
137,676
+1,831
+1% +$284K 0.17% 143
2016
Q4
$19.2M Sell
135,845
-1,428
-1% -$201K 0.17% 147
2016
Q3
$21.8M Buy
137,273
+3,881
+3% +$617K 0.19% 133
2016
Q2
$19.7M Buy
133,392
+1,176
+0.9% +$174K 0.18% 139
2016
Q1
$18.7M Buy
132,216
+43,150
+48% +$6.11M 0.18% 141
2015
Q4
$12.6M Buy
89,066
+1,182
+1% +$168K 0.12% 186
2015
Q3
$10.7M Buy
87,884
+518
+0.6% +$63.3K 0.09% 213
2015
Q2
$11.3M Sell
87,366
-3,633
-4% -$471K 0.02% 858
2015
Q1
$12.2M Sell
90,999
-27,341
-23% -$3.67M 0.02% 794
2014
Q4
$14.8M Sell
118,340
-47,005
-28% -$5.89M 0.02% 698
2014
Q3
$20.1M Sell
165,345
-9,516
-5% -$1.16M 0.03% 575
2014
Q2
$20.6M Buy
174,861
+1,965
+1% +$232K 0.03% 562
2014
Q1
$20.8M Buy
172,896
+270
+0.2% +$32.5K 0.03% 536
2013
Q4
$19.2M Sell
172,626
-18,181
-10% -$2.02M 0.03% 554
2013
Q3
$17.6M Buy
190,807
+51,772
+37% +$4.77M 0.03% 544
2013
Q2
$11.8M Buy
+139,035
New +$11.8M 0.02% 651