William Blair & Company’s TransDigm Group TDG Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$263M Sell
172,953
-2,268
-1% -$3.45M 0.73% 29
2025
Q1
$242M Sell
175,221
-3,122
-2% -$4.32M 0.73% 31
2024
Q4
$226M Buy
178,343
+674
+0.4% +$854K 0.66% 40
2024
Q3
$254M Buy
177,669
+285
+0.2% +$407K 0.74% 31
2024
Q2
$227M Buy
177,384
+188
+0.1% +$240K 0.7% 33
2024
Q1
$218M Buy
177,196
+4,213
+2% +$5.19M 0.69% 35
2023
Q4
$175M Buy
172,983
+477
+0.3% +$483K 0.6% 42
2023
Q3
$145M Buy
172,506
+1,940
+1% +$1.64M 0.56% 44
2023
Q2
$153M Sell
170,566
-448
-0.3% -$401K 0.56% 42
2023
Q1
$126M Sell
171,014
-4,590
-3% -$3.38M 0.5% 47
2022
Q4
$111M Buy
175,604
+1,469
+0.8% +$925K 0.48% 51
2022
Q3
$91.4M Sell
174,135
-1,423
-0.8% -$747K 0.42% 61
2022
Q2
$94.2M Buy
175,558
+659
+0.4% +$354K 0.42% 56
2022
Q1
$114M Sell
174,899
-3,419
-2% -$2.23M 0.4% 59
2021
Q4
$113M Sell
178,318
-3,232
-2% -$2.06M 0.36% 65
2021
Q3
$113M Sell
181,550
-1,601
-0.9% -$1,000K 0.39% 56
2021
Q2
$119M Sell
183,151
-1,814
-1% -$1.17M 0.41% 52
2021
Q1
$109M Sell
184,965
-929
-0.5% -$546K 0.41% 55
2020
Q4
$115M Sell
185,894
-4,491
-2% -$2.78M 0.42% 56
2020
Q3
$90.5M Sell
190,385
-426
-0.2% -$202K 0.38% 58
2020
Q2
$84.3M Buy
190,811
+32,357
+20% +$14.3M 0.4% 56
2020
Q1
$50.7M Sell
158,454
-5,375
-3% -$1.72M 0.32% 70
2019
Q4
$91.7M Buy
163,829
+319
+0.2% +$179K 0.47% 48
2019
Q3
$0 Sell
163,510
-4,679
-3% ﹤0.01% 1755
2019
Q2
$81.4M Buy
168,189
+1,709
+1% +$827K 0.47% 52
2019
Q1
$75.6M Buy
166,480
+2,851
+2% +$1.29M 0.46% 54
2018
Q4
$55.6M Sell
163,629
-4,077
-2% -$1.39M 0.41% 63
2018
Q3
$62.4M Buy
167,706
+1,256
+0.8% +$468K 0.38% 66
2018
Q2
$57.4M Buy
166,450
+659
+0.4% +$227K 0.39% 62
2018
Q1
$50.9M Sell
165,791
-1,860
-1% -$571K 0.36% 71
2017
Q4
$46M Sell
167,651
-1,717
-1% -$472K 0.31% 83
2017
Q3
$43.3M Sell
169,368
-4,673
-3% -$1.19M 0.32% 79
2017
Q2
$46.8M Sell
174,041
-15,119
-8% -$4.07M 0.35% 72
2017
Q1
$41.7M Sell
189,160
-69,277
-27% -$15.3M 0.34% 84
2016
Q4
$64.3M Sell
258,437
-3,988
-2% -$993K 0.58% 46
2016
Q3
$75.9M Sell
262,425
-2,868
-1% -$829K 0.67% 34
2016
Q2
$70M Sell
265,293
-794
-0.3% -$209K 0.65% 40
2016
Q1
$58.6M Sell
266,087
-1,086
-0.4% -$239K 0.55% 51
2015
Q4
$61M Sell
267,173
-79,892
-23% -$18.3M 0.57% 44
2015
Q3
$73.7M Sell
347,065
-901,667
-72% -$192M 0.64% 31
2015
Q2
$281M Buy
1,248,732
+60,651
+5% +$13.6M 0.42% 38
2015
Q1
$260M Buy
1,188,081
+143,885
+14% +$31.5M 0.4% 47
2014
Q4
$205M Sell
1,044,196
-154,216
-13% -$30.3M 0.33% 72
2014
Q3
$221M Sell
1,198,412
-9,677
-0.8% -$1.78M 0.38% 53
2014
Q2
$202M Sell
1,208,089
-440,113
-27% -$73.6M 0.33% 70
2014
Q1
$305M Buy
1,648,202
+300,579
+22% +$55.7M 0.51% 19
2013
Q4
$217M Buy
1,347,623
+109,808
+9% +$17.7M 0.36% 61
2013
Q3
$172M Buy
1,237,815
+126,035
+11% +$17.5M 0.31% 75
2013
Q2
$174M Buy
+1,111,780
New +$174M 0.34% 66