BWX Technologies, Inc.
MX ˙ BMV ˙ US05605H1005
SecurityMX:BWXT / BWX Technologies, Inc.
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership264,231 shares
Latest Disclosed Value $ 54,030,265
Ameriprise Financial Inc reports 15.42% increase in ownership of BWXT / BWX Technologies, Inc.

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 264,231 shares of BWX Technologies, Inc. (MX:BWXT) valued at $54,030,265 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 228,929 shares of BWX Technologies, Inc.. This represents a change in shares of 15.42% 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)
2026-05-15 2026-03-31 13F BWX TECHNOLOGIES COM 05605H100 264,231 35,302 15.42 54,030 36.55 0.0023
2026-02-17 2025-12-31 13F BWX TECHNOLOGIES COM 05605H100 228,929 -209,005 -47.73 39,570 -51.02 0.0089
2025-11-14 2025-09-30 13F BWX TECHNOLOGIES COM 05605H100 437,934 -93,689 -17.62 80,786 5.48 0.0186
2025-08-14 2025-06-30 13F BWX TECHNOLOGIES COM 05605H100 531,623 109,977 26.08 76,586 84.13 0.0189
2025-05-14 2025-03-31 13F BWX TECHNOLOGIES COM 05605H100 421,646 247,795 142.53 41,595 114.79 0.0112
2025-02-14 2024-12-31 13F BWX TECHNOLOGIES COM 05605H100 173,851 52,598 43.38 19,365 46.90 0.0050
2024-11-14 2024-09-30 13F BWX TECHNOLOGIES COM 05605H100 121,253 -845,115 -87.45 13,182 -85.64 0.0034
2024-08-14 2024-06-30 13F BWX TECHNOLOGIES COM 05605H100 966,368 228,771 31.02 91,805 21.30 0.0248
2024-05-15 2024-03-31 13F BWX TECHNOLOGIES COM 05605H100 737,597 150,131 25.56 75,687 67.91 0.0208
2024-02-14 2023-12-31 13F BWX TECHNOLOGIES COM 05605H100 587,466 219,086 59.47 45,076 63.20 0.0135
2023-11-14 2023-09-30 13F BWX TECHNOLOGIES COM 05605H100 368,380 228,016 162.45 27,621 174.94 0.0091
2023-08-14 2023-06-30 13F BWX TECHNOLOGIES COM 05605H100 140,364 115,929 474.44 10,046 552.34 0.0031
2023-05-22 2023-03-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 24,435 -96 -0.39 1,540 7.84 0.0005
2023-05-15 2023-03-31 13F BWX TECHNOLOGIES COM 05605H100 24,435 -96 1,540 0.0001
2023-02-14 2022-12-31 13F BWX TECHNOLOGIES COM 05605H100 24,531 -161 -0.65 1,428 14.70 0.0005
2022-11-14 2022-09-30 13F BWX TECHNOLOGIES COM 05605H100 24,692 303 1.24 1,245 -7.37 0.0005
2022-08-15 2022-06-30 13F BWX TECHNOLOGIES COM 05605H100 24,389 -290 -1.18 1,344 1.13 0.0005
2022-05-16 2022-03-31 13F BWX TECHNOLOGIES COM 05605H100 24,679 -3,645 -12.87 1,329 -2.06 0.0004
2022-02-14 2021-12-31 13F BWX TECHNOLOGIES COM 05605H100 28,324 4,181 17.32 1,357 4.38 0.0004
2021-11-15 2021-09-30 13F BWX TECHNOLOGIES COM 05605H100 24,143 -104,052 -81.17 1,300 -82.54 0.0004
2021-08-16 2021-06-30 13F BWX TECHNOLOGIES COM 05605H100 128,195 -902,520 -87.56 7,446 -89.04 0.0023
2021-05-17 2021-03-31 13F BWX TECHNOLOGIES COM 05605H100 1,030,715 -566,392 -35.46 67,959 -29.41 0.0226
2021-02-12 2020-12-31 13F BWX TECHNOLOGIES COM 05605H100 1,597,107 95,397 6.35 96,270 13.84 0.0341
2020-11-16 2020-09-30 13F BWX TECHNOLOGIES COM 05605H100 1,501,710 -108,571 -6.74 84,563 -7.28 0.0344
2020-08-14 2020-06-30 13F BWX TECHNOLOGIES COM 05605H100 1,610,281 99,361 6.58 91,205 23.93 0.0391
2020-05-15 2020-03-31 13F BWX TECHNOLOGIES COM 05605H100 1,510,920 575,200 61.47 73,591 26.68 0.0386
2020-02-14 2019-12-31 13F BWX TECHNOLOGIES COM 05605H100 935,720 24,201 2.66 58,090 11.40 0.0241
2019-11-14 2019-09-30 13F BWX TECHNOLOGIES COM 05605H100 911,519 -348,951 -27.68 52,147 -20.60 0.0234
2019-08-14 2019-06-30 13F BWX TECHNOLOGIES COM 05605H100 1,260,470 75,931 6.41 65,674 11.81 0.0294
2019-05-15 2019-03-31 13F BWX TECHNOLOGIES COM 05605H100 1,184,539 708,630 148.90 58,736 223.20 0.0270
2019-02-14 2018-12-31 13F BWX TECHNOLOGIES COM 05605H100 475,909 -157,480 -24.86 18,173 -54.11 0.0091
2018-11-14 2018-09-30 13F BWX TECHNOLOGIES COM 05605H100 633,389 158,294 33.32 39,602 33.76 0.0138
2018-08-14 2018-06-30 13F BWX TECHNOLOGIES COM 05605H100 475,095 -41,625 -8.06 29,606 -9.85 0.0131
2018-05-14 2018-03-31 13F BWX TECHNOLOGIES COM 05605H100 516,720 263,299 103.90 32,840 114.36 0.0149
2018-02-12 2017-12-31 13F BWX TECHNOLOGIES COM 05605H100 253,421 17,601 7.46 15,320 15.95 0.0070
2017-11-07 2017-09-30 13F BWX TECHNOLOGIES COM 05605H100 235,820 -39,444 -14.33 13,213 -1.41 0.0063
2017-08-10 2017-06-30 13F BWX TECHNOLOGIES COM 05605H100 275,264 95,741 53.33 13,402 56.79 0.0067
2017-05-05 2017-03-31 13F BWX TECHNOLOGIES COM 05605H100 179,523 75,906 73.26 8,548 107.83 0.0044
2017-02-03 2016-12-31 13F BWX TECHNOLOGIES COM 05605H100 103,617 547 0.53 4,113 3.97 0.0022
2016-11-08 2016-09-30 13F BWX TECHNOLOGIES COM 05605H100 103,070 4,964 5.06 3,956 12.71 0.0022
2016-08-08 2016-06-30 13F BWX TECHNOLOGIES COM 05605H100 98,106 -218,123 -68.98 3,510 -66.92 0.0021
2016-05-12 2016-03-31 13F BWX TECHNOLOGIES COM 05605H100 316,229 167,676 112.87 10,612 124.88 0.0063
2016-02-11 2015-12-31 13F BWX TECHNOLOGIES COM 05605H100 148,553 -1,714 -1.14 4,719 77.54 0.0028
2015-11-12 2015-09-30 13F BWX TECHNOLOGIES COM 05605H100 150,267 63,272 72.73 2,658 -6.90 0.0016
2015-08-13 2015-06-30 13F BABCOCK & WILCOX COM 05605H100 86,995 -4,507 -4.93 2,855 -2.76 0.0016
2015-05-14 2015-03-31 13F BABCOCK & WILCOX COM 05615F102 91,502 23,831 35.22 2,936 43.22 0.0017
2015-02-13 2014-12-31 13F BABCOCK & WILCOX COM 05615F102 67,671 28,668 73.50 2,050 89.81 0.0012
2014-11-14 2014-09-30 13F BABCOCK & WILCOX COM 05615F102 39,003 -1,214,334 -96.89 1,080 -97.35 0.0006
2014-08-13 2014-06-30 13F BABCOCK & WILCOX COM 05615F102 1,253,337 256,350 25.71 40,683 22.91 0.0240
2014-05-14 2014-03-31 13F BABCOCK & WILCOX COM 05615F102 996,987 -269,215 -21.26 33,100 -23.54 0.0199
2014-02-14 2013-12-31 13F BABCOCK & WILCOX COM 05615F102 1,266,202 -573,714 -31.18 43,292 -30.22 0.0262
2013-11-14 2013-09-30 13F BABCOCK & WILCOX COM 05615F102 1,839,916 -4,221 -0.23 62,042 12.03 0.0407
2013-08-14 2013-06-30 13F BABCOCK & WILCOX COM 05615F102 1,844,137 1,844,137 55,380 0.0383
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.