BWX Technologies, Inc.
MX ˙ BMV ˙ US05605H1005
SecurityMX:BWXT / BWX Technologies, Inc.
InstitutionFirst Trust Advisors Lp
Latest Disclosed Ownership1,391,079 shares
Latest Disclosed Value $ 284,461,613
First Trust Advisors Lp reports 12.23% increase in ownership of BWXT / BWX Technologies, Inc.

On May 13, 2026 - First Trust Advisors Lp filed a 13F-HR form disclosing ownership of 1,391,079 shares of BWX Technologies, Inc. (MX:BWXT) valued at $284,461,613 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,239,499 shares of BWX Technologies, Inc.. This represents a change in shares of 12.23% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F BWX TECHNOLOGIES COM 05605H100 1,391,079 151,580 12.23 284,462 32.78 0.2027
2026-02-13 2025-12-31 13F BWX TECHNOLOGIES COM 05605H100 1,239,499 -15,280 -1.22 214,235 -7.40 0.1557
2025-11-12 2025-09-30 13F BWX TECHNOLOGIES COM 05605H100 1,254,779 299,375 31.33 231,343 68.08 0.1719
2025-08-13 2025-06-30 13F BWX TECHNOLOGIES COM 05605H100 955,404 -217,249 -18.53 137,636 18.98 0.1107
2025-05-14 2025-03-31 13F BWX TECHNOLOGIES COM 05605H100 1,172,653 264,641 29.15 115,682 14.37 0.1025
2025-02-13 2024-12-31 13F BWX TECHNOLOGIES COM 05605H100 908,012 231,146 34.15 101,143 37.47 0.0892
2024-11-13 2024-09-30 13F BWX TECHNOLOGIES COM 05605H100 676,866 367,416 118.73 73,575 150.28 0.0701
2024-08-13 2024-06-30 13F BWX TECHNOLOGIES COM 05605H100 309,450 225,954 270.62 29,398 243.10 0.0300
2024-05-13 2024-03-31 13F BWX TECHNOLOGIES COM 05605H100 83,496 -247,063 -74.74 8,568 -66.22 0.0087
2024-02-13 2023-12-31 13F BWX TECHNOLOGIES COM 05605H100 330,559 96,629 41.31 25,364 44.60 0.0277
2023-11-13 2023-09-30 13F BWX TECHNOLOGIES COM 05605H100 233,930 -2,938 -1.24 17,540 3.47 0.0208
2023-08-14 2023-06-30 13F BWX TECHNOLOGIES COM 05605H100 236,868 69,208 41.28 16,953 60.39 0.0193
2023-05-15 2023-03-31 13F BWX TECHNOLOGIES COM 05605H100 167,660 78,762 88.60 10,569 104.71 0.0122
2023-02-09 2022-12-31 13F BWX TECHNOLOGIES COM 05605H100 88,898 -214,412 -70.69 5,163 -66.20 0.0061
2022-11-14 2022-09-30 13F BWX TECHNOLOGIES COM 05605H100 303,310 95,709 46.10 15,277 33.58 0.0198
2022-08-12 2022-06-30 13F BWX TECHNOLOGIES COM 05605H100 207,601 -45,356 -17.93 11,437 -16.05 0.0141
2022-05-13 2022-03-31 13F BWX TECHNOLOGIES COM 05605H100 252,957 41,409 19.57 13,624 34.50 0.0139
2022-02-08 2021-12-31 13F BWX TECHNOLOGIES COM 05605H100 211,548 -44,129 -17.26 10,129 -26.45 0.0099
2021-11-15 2021-09-30 13F BWX TECHNOLOGIES COM 05605H100 255,677 -18,818 -6.86 13,771 -13.80 0.0148
2021-10-12 2021-06-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 274,495 129,752 89.64 15,975 67.38 0.0173
2021-08-16 2021-06-30 13F BWX TECHNOLOGIES COM 05605H100 276,874 132,131 16,092 0.0166
2021-05-14 2021-03-31 13F BWX TECHNOLOGIES COM 05605H100 144,743 76,759 112.91 9,544 132.89 0.0116
2021-02-02 2020-12-31 13F BWX TECHNOLOGIES COM 05605H100 67,984 -12,267 -15.29 4,098 -9.32 0.0054
2020-11-05 2020-09-30 13F BWX TECHNOLOGIES COM 05605H100 80,251 -8,661 -9.74 4,519 -10.27 0.0072
2020-07-22 2020-06-30 13F BWX TECHNOLOGIES COM 05605H100 88,912 36,973 71.19 5,036 99.05 0.0087
2020-05-06 2020-03-31 13F BWX TECHNOLOGIES COM 05605H100 51,939 8,057 18.36 2,530 -7.12 0.0057
2020-02-03 2019-12-31 13F BWX TECHNOLOGIES COM 05605H100 43,882 30,905 238.15 2,724 267.12 0.0047
2019-11-04 2019-09-30 13F BWX TECHNOLOGIES COM 05605H100 12,977 12,977 742 0.0014
2019-07-30 2019-06-30 13F BWX TECHNOLOGIES COM 05605H100 0 -75,082 -100.00 0 -100.00
2019-06-19 2019-03-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 75,082 6,233 9.05 3,723 41.45 0.0074
2019-05-09 2019-03-31 13F BWX TECHNOLOGIES COM 05605H100 75,082 6,233 3,723
2019-02-07 2018-12-31 13F BWX TECHNOLOGIES COM 05605H100 68,849 -7,753 -10.12 2,632 -45.06 0.0062
2018-10-25 2018-09-30 13F BWX TECHNOLOGIES COM 05605H100 76,602 -278,635 -78.44 4,791 -78.36 0.0089
2018-08-02 2018-06-30 13F BWX TECHNOLOGIES COM 05605H100 355,237 -17,132 -4.60 22,138 -6.42 0.0459
2018-04-23 2018-03-31 13F BWX TECHNOLOGIES COM 05605H100 372,369 -105,386 -22.06 23,657 -18.14 0.0543
2018-02-08 2017-12-31 13F BWX TECHNOLOGIES COM 05605H100 477,755 115,628 31.93 28,899 42.46 0.0688
2017-10-24 2017-09-30 13F BWX TECHNOLOGIES COM 05605H100 362,127 -227,230 -38.56 20,286 -29.39 0.0522
2017-08-02 2017-06-30 13F BWX TECHNOLOGIES COM 05605H100 589,357 317,459 116.76 28,731 122.00 0.0767
2017-05-02 2017-03-31 13F BWX TECHNOLOGIES COM 05605H100 271,898 -197,458 -42.07 12,942 -30.54 0.0359
2017-02-06 2016-12-31 13F BWX TECHNOLOGIES COM 05605H100 469,356 437,150 1,357.36 18,633 1,407.52 0.0555
2016-11-01 2016-09-30 13F BWX TECHNOLOGIES COM 05605H100 32,206 -966 -2.91 1,236 4.13 0.0037
2016-08-04 2016-06-30 13F BWX TECHNOLOGIES COM 05605H100 33,172 2,341 7.59 1,187 14.69 0.0037
2016-05-10 2016-03-31 13F BWX TECHNOLOGIES COM 05605H100 30,831 30,831 0.00 1,035 0.0033
2016-05-04 2015-12-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 0 -106,490 -100.00 0 -100.00
2015-11-05 2015-09-30 13F BWX TECHNOLOGIES COM 05605H100 106,490 25,763 31.91 2,807 6.00 0.0081
2015-08-04 2015-06-30 13F BABCOCK & WILCOX CO COM 05615F102 80,727 -259,243 -76.25 2,648 -75.73 0.0069
2015-05-04 2015-03-31 13F BABCOCK & WILCOX CO COM 05615F102 339,970 -104,272 -23.47 10,910 -18.95 0.0320
2015-02-13 2014-12-31 13F BABCOCK & WILCOX CO COM 05615F102 444,242 -278,586 -38.54 13,461 -32.75 0.0454
2014-11-12 2014-09-30 13F BABCOCK & WILCOX CO COM 05615F102 722,828 54,029 8.08 20,015 -7.80 0.0787
2014-08-11 2014-06-30 13F BABCOCK & WILCOX CO COM 05615F102 668,799 419,695 168.48 21,709 162.50 0.0902
2014-05-12 2014-03-31 13F BABCOCK & WILCOX CO COM 05615F102 249,104 -67,607 -21.35 8,270 -23.62 0.0363
2014-08-08 2013-12-31 13F/A-1 BABCOCK & WILCOX CO COM 05615F102 316,711 190,483 150.90 10,828 154.42 0.0525
2014-02-13 2013-12-31 13F BABCOCK & WILCOX CO COM 05615F102 316,711 10,828
2013-11-12 2013-09-30 13F BABCOCK & WILCOX CO COM 05615F102 126,228 73,416 139.01 4,256 168.35 0.0231
2013-08-12 2013-06-30 13F BABCOCK & WILCOX CO COM 05615F102 52,812 52,812 1,586 0.0103
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.