William Blair Investment Management’s BWX Technologies BWXT Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $183M | Sell |
941,233
-40,549
| -4% | -$8.45M | 0.55% | 49 |
|
|
2026
Q1 | $201M | Sell |
981,782
-125,818
| -11% | -$25.6M | 0.66% | 25 |
|
|
2025
Q4 | $191M | Sell |
1,107,600
-147,710
| -12% | -$27.7M | 0.53% | 43 |
|
|
2025
Q3 | $231M | Sell |
1,255,310
-262,046
| -17% | -$42.2M | 0.6% | 34 |
|
|
2025
Q2 | $219M | Buy |
1,517,356
+1,273,895
| +523% | +$149M | 0.58% | 37 |
|
|
2025
Q1 | $24M | Sell |
243,461
-1,107,575
| -82% | -$120M | 0.07% | 270 |
|
|
2024
Q4 | $150M | Sell |
1,351,036
-1,813,026
| -57% | -$222M | 0.37% | 87 |
|
|
2024
Q3 | $344M | Sell |
3,164,062
-807,456
| -20% | -$80.2M | 0.85% | 18 |
|
|
2024
Q2 | $377M | Sell |
3,971,518
-33,899
| -0.8% | -$3.14M | 0.99% | 12 |
|
|
2024
Q1 | $411M | Sell |
4,005,417
-629,470
| -14% | -$56.3M | 1.06% | 13 |
|
|
2023
Q4 | $356M | Sell |
4,634,887
-993,980
| -18% | -$76.4M | 1.03% | 11 |
|
|
2023
Q3 | $422M | Sell |
5,628,867
-159,326
| -3% | -$11.5M | 1.4% | 10 |
|
|
2023
Q2 | $414M | Sell |
5,788,193
-563,688
| -9% | -$36.8M | 1.33% | 9 |
|
|
2023
Q1 | $400M | Buy |
6,351,881
+102,849
| +2% | +$6.2M | 1.4% | 9 |
|
|
2022
Q4 | $363M | Sell |
6,249,032
-404,543
| -6% | -$23.2M | 1.39% | 7 |
|
|
2022
Q3 | $335M | Buy |
6,653,575
+256,065
| +4% | +$13.8M | 1.32% | 8 |
|
|
2022
Q2 | $352M | Sell |
6,397,510
-139,790
| -2% | -$7.27M | 1.31% | 8 |
|
|
2022
Q1 | $352M | Sell |
6,537,300
-419,051
| -6% | -$20.6M | 1.05% | 11 |
|
|
2021
Q4 | $333M | Sell |
6,956,351
-296,807
| -4% | -$15.5M | 0.9% | 18 |
|
|
2021
Q3 | $391M | Sell |
7,253,158
-102,233
| -1% | -$5.76M | 1.1% | 10 |
|
|
2021
Q2 | $427M | Sell |
7,355,391
-106,065
| -1% | -$6.82M | 1.34% | 5 |
|
|
2021
Q1 | $492M | Buy |
7,461,456
+74,584
| +1% | +$4.47M | 1.59% | 3 |
|
|
2020
Q4 | $445M | Sell |
7,386,872
-125,360
| -2% | -$7.22M | 1.48% | 4 |
|
|
2020
Q3 | $423M | Sell |
7,512,232
-89,914
| -1% | -$5.04M | 1.65% | 5 |
|
|
2020
Q2 | $431M | Sell |
7,602,146
-170,039
| -2% | -$9.51M | 1.75% | 4 |
|
|
2020
Q1 | $379M | Buy |
7,772,185
+414,203
| +6% | +$24.6M | 1.84% | 5 |
|
|
2019
Q4 | $457M | Buy |
7,357,982
+210,634
| +3% | +$12.5M | 1.82% | 4 |
|
|
2019
Q3 | $409M | Buy |
7,147,348
+135,082
| +2% | +$7.54M | 1.75% | 4 |
|
|
2019
Q2 | $365M | Buy |
7,012,266
+659,488
| +10% | +$32.9M | 1.53% | 5 |
|
|
2019
Q1 | $315M | Buy |
6,352,778
+13,613
| +0.2% | +$644K | 1.33% | 10 |
|
|
2018
Q4 | $242M | Sell |
6,339,165
-308,010
| -5% | -$15.3M | 1.2% | 13 |
|
|
2018
Q3 | $416M | Buy |
6,647,175
+911,880
| +16% | +$57.7M | 1.44% | 6 |
|
|
2018
Q2 | $357M | Sell |
5,735,295
-134,134
| -2% | -$8.92M | 1.33% | 8 |
|
|
2018
Q1 | $373M | Buy |
5,869,429
+141,451
| +2% | +$8.97M | 1.42% | 6 |
|
|
2017
Q4 | $346M | Sell |
5,727,978
-664,000
| -10% | -$40M | 1.35% | 6 |
|
|
2017
Q3 | $358M | Sell |
6,391,978
-152,803
| -2% | -$8.11M | 1.28% | 5 |
|
|
2017
Q2 | $319M | Buy |
6,544,781
+691,035
| +12% | +$33.5M | 1.16% | 11 |
|
|
2017
Q1 | $279M | Buy |
5,853,746
+2,662,072
| +83% | +$116M | 1.05% | 16 |
|
|
2016
Q4 | $127M | Buy |
3,191,674
+922,103
| +41% | +$35.8M | 0.51% | 65 |
|
|
2016
Q3 | $87.1M | Buy |
+2,269,571
| New | +$85.7M | 0.33% | 99 |
|
Other funds holding BWXT
William Blair Investment Management's BWXT Position: Q2 2026 in Review
William Blair Investment Management reduced its BWX Technologies (BWXT) stake by 4.1% in Q2 2026, selling an estimated $8.45M and leaving 941,233 shares worth $183M. The position accounts for 0.55% of the portfolio, ranked #49.
William Blair Investment Management first reported a position in BWXT in Q3 2016 and has held it in 40 quarters since. The position peaked at $492M in Q1 2021. 852 funds tracked by Wall St. Rank hold BWXT as of Q2 2026.
- William Blair Investment Management held 941,233 shares of BWX Technologies worth $183M as of Q2 2026.
- William Blair Investment Management sold 40,549 BWX Technologies shares in Q2 2026, an estimated $8.45M.
- BWX Technologies made up 0.55% of William Blair Investment Management's portfolio in Q2 2026, its #49 holding.
- William Blair Investment Management first reported a position in BWX Technologies in Q3 2016 and has held it in 40 quarters since.
- William Blair Investment Management's BWX Technologies position peaked at $492M in Q1 2021.
- 852 funds tracked by Wall St. Rank held BWX Technologies as of Q2 2026.
Based on William Blair Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.