William Blair Investment Management’s Adtran ADTN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$25M Sell
1,989,530
-489,091
-20% -$4.96M 0.08% 225
2025
Q4
$21.5M Sell
2,478,621
-257,809
-9% -$2.24M 0.06% 264
2025
Q3
$25.7M Sell
2,736,430
-166,096
-6% -$1.55M 0.07% 255
2025
Q2
$26M Sell
2,902,526
-236,577
-8% -$1.89M 0.07% 248
2025
Q1
$27.4M Sell
3,139,103
-1,508,052
-32% -$15.2M 0.08% 235
2024
Q4
$38.7M Buy
4,647,155
+114,986
+3% +$849K 0.09% 182
2024
Q3
$26.9M Buy
4,532,169
+94,982
+2% +$529K 0.07% 262
2024
Q2
$23.3M Sell
4,437,187
-18,880
-0.4% -$96.2K 0.06% 282
2024
Q1
$24.2M Buy
4,456,067
+817,762
+22% +$5.22M 0.06% 284
2023
Q4
$26.7M Buy
3,638,305
+1,232,466
+51% +$8.12M 0.08% 252
2023
Q3
$19.8M Buy
2,405,839
+875,140
+57% +$7.78M 0.07% 276
2023
Q2
$16.1M Buy
+1,530,699
New +$15.2M 0.05% 297
2018
Q1
Sell
-1,018,565
Closed -$19.7M 433
2017
Q4
$19.7M Sell
1,018,565
-10,820
-1% -$240K 0.08% 247
2017
Q3
$24.7M Buy
1,029,385
+176,356
+21% +$3.9M 0.09% 212
2017
Q2
$17.6M Buy
853,029
+190,309
+29% +$3.81M 0.06% 267
2017
Q1
$13.8M Sell
662,720
-2,685
-0.4% -$58.3K 0.05% 289
2016
Q4
$14.9M Buy
665,405
+53
+0% +$1.07K 0.06% 274
2016
Q3
$12.7M Buy
665,352
+74,201
+13% +$1.37M 0.05% 289
2016
Q2
$11M Buy
591,151
+78,345
+15% +$1.49M 0.04% 287
2016
Q1
$10.4M Buy
+512,806
New +$9.48M 0.04% 282

Other funds holding ADTN