BWX 테크놀로지스, Inc.
US ˙ NYSE ˙ US05605H1005

SecurityBWXT / BWX Technologies, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership977,834 shares
Latest Disclosed Value $ 199,957,696
Morgan Stanley reports 1.47% decrease in ownership of BWXT / BWX Technologies, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 977,834 shares of BWX Technologies, Inc. (US:BWXT) valued at $199,957,275 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 992,387 shares of BWX Technologies, Inc.. This represents a change in shares of -1.47% during the quarter. The current value of the position is $186,531,614 USD.

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 977,834 -14,553 -1.47 199,958 16.58 0.0120
2026-05-27 2025-12-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 992,387 82,468 9.06 171,525 2.24 0.0102
2026-02-13 2025-12-31 13F BWX TECHNOLOGIES COM 05605H100 992,387 82,468 171,525 0.0102
2026-05-27 2025-09-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 909,919 -99,226 -9.83 167,762 15.40 0.0102
2025-11-14 2025-09-30 13F BWX TECHNOLOGIES COM 05605H100 909,919 -99,226 167,762 0.0102
2025-08-15 2025-06-30 13F BWX TECHNOLOGIES COM 05605H100 1,009,145 116,718 13.08 145,378 65.13 0.0095
2025-05-15 2025-03-31 13F BWX TECHNOLOGIES COM 05605H100 892,427 -15,638 -1.72 88,038 -12.96 0.0063
2025-05-15 2024-12-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 908,065 162,446 21.79 101,150 24.80 0.0071
2025-02-14 2024-12-31 13F BWX TECHNOLOGIES COM 05605H100 908,065 162,446 101,150 0.0071
2025-05-14 2024-09-30 13F/A-2 BWX TECHNOLOGIES COM 05605H100 745,619 1,521 0.20 81,049 14.66 0.0059
2025-02-14 2024-09-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 745,619 1,521 81,049 0.0059
2024-11-14 2024-09-30 13F BWX TECHNOLOGIES COM 05605H100 745,619 1,521 81,049 0.0007
2025-05-14 2024-06-30 13F/A-2 BWX TECHNOLOGIES COM 05605H100 744,098 -97,530 -11.59 70,689 -18.15 0.0055
2024-10-17 2024-06-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 744,098 -97,530 70,689 0.0055
2024-08-14 2024-06-30 13F BWX TECHNOLOGIES COM 05605H100 744,098 -97,530 70,689 0.0055
2024-10-17 2024-03-31 13F/A-2 BWX TECHNOLOGIES COM 05605H100 841,628 -48,157 -5.41 86,368 26.50 0.0069
2024-08-16 2024-03-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 841,628 -48,157 86,368 0.0008
2024-05-15 2024-03-31 13F BWX TECHNOLOGIES COM 05605H100 841,628 -48,157 86,368 0.0069
2024-08-16 2023-12-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 889,785 96,310 12.14 68,273 14.76 0.0060
2024-02-13 2023-12-31 13F BWX TECHNOLOGIES COM 05605H100 889,785 96,310 68,273 0.0060
2023-11-15 2023-09-30 13F BWX TECHNOLOGIES COM 05605H100 793,475 -21,553 -2.64 59,495 1.99 0.0060
2023-08-14 2023-06-30 13F BWX TECHNOLOGIES COM 05605H100 815,028 106,063 14.96 58,332 30.51 0.0057
2023-05-15 2023-03-31 13F BWX TECHNOLOGIES COM 05605H100 708,965 -46,840 -6.20 44,693 1.81 0.0048
2023-02-14 2022-12-31 13F BWX TECHNOLOGIES COM 05605H100 755,805 70,231 10.24 43,897 27.12 0.0050
2022-11-14 2022-09-30 13F BWX TECHNOLOGIES COM 05605H100 685,574 35,838 5.52 34,533 -3.53 0.0047
2022-10-27 2022-06-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 649,736 362,210 125.97 35,795 131.14 0.0046
2022-08-15 2022-06-30 13F BWX TECHNOLOGIES COM 05605H100 649,736 362,210 35,795 0.0046
2022-10-27 2022-03-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 287,526 -40,301 -12.29 15,486 -1.34 0.0021
2022-05-13 2022-03-31 13F BWX TECHNOLOGIES COM 05605H100 287,526 -40,301 15,486 0.0021
2022-02-14 2021-12-31 13F BWX TECHNOLOGIES COM 05605H100 327,827 136,279 71.15 15,696 52.14 0.0019
2021-11-15 2021-09-30 13F BWX TECHNOLOGIES COM 05605H100 191,548 16,651 9.52 10,317 1.49 0.0014
2021-08-23 2021-06-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 174,897 63,845 57.49 10,166 38.82 0.0013
2021-08-16 2021-06-30 13F BWX TECHNOLOGIES COM 05605H100 174,897 63,845 10,166 0.0003
2021-05-17 2021-03-31 13F BWX TECHNOLOGIES COM 05605H100 111,052 -29,048 -20.73 7,323 -13.30 0.0011
2021-02-16 2020-12-31 13F BWX TECHNOLOGIES COM 05605H100 140,100 52,099 59.20 8,446 70.45 0.0013
2020-11-13 2020-09-30 13F BWX TECHNOLOGIES COM 05605H100 88,001 -5,820 -6.20 4,955 -6.77 0.0010
2020-08-14 2020-06-30 13F BWX TECHNOLOGIES COM 05605H100 93,821 -3,549 -3.64 5,315 12.06 0.0012
2020-05-26 2020-03-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 97,370 -3,896 -3.85 4,743 -24.56 0.0013
2020-05-15 2020-03-31 13F BWX TECHNOLOGIES COM 05605H100 97,370 -3,896 4,743 364.3613
2020-02-14 2019-12-31 13F BWX TECHNOLOGIES COM 05605H100 101,266 22,368 28.35 6,287 39.28 0.0015
2019-11-14 2019-09-30 13F BWX TECHNOLOGIES COM 05605H100 78,898 3,902 5.20 4,514 15.54 0.0012
2019-08-14 2019-06-30 13F BWX TECHNOLOGIES COM 05605H100 74,996 -3,158 -4.04 3,907 0.83 0.0010
2019-05-15 2019-03-31 13F BWX TECHNOLOGIES COM 05605H100 78,154 7,436 10.52 3,875 43.31 0.0011
2019-02-14 2018-12-31 13F BWX TECHNOLOGIES COM 05605H100 70,718 -24,122 -25.43 2,704 -54.42 0.0008
2019-04-23 2018-09-30 13F/A-2 BWX TECHNOLOGIES COM 05605H100 94,840 -18,052 -15.99 5,932 -15.69 0.0015
2018-11-20 2018-09-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 94,840 0 5,932 0.0015
2018-11-14 2018-09-30 13F BWX TECHNOLOGIES COM 05605H100 94,840 -18,052 5,932
2019-04-23 2018-06-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 112,892 -11,163 -9.00 7,036 -10.72 0.0019
2018-08-14 2018-06-30 13F BWX TECHNOLOGIES COM 05605H100 112,892 -11,163 7,036
2019-04-23 2018-03-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 124,055 -25,078 -16.82 7,881 -12.64 0.0022
2018-05-14 2018-03-31 13F BWX TECHNOLOGIES COM 05605H100 124,055 -25,078 7,881
2019-04-23 2017-12-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 149,133 -18,539 -11.06 9,021 -3.96 0.0025
2018-02-14 2017-12-31 13F BWX TECHNOLOGIES COM 05605H100 149,133 -18,539 9,021
2017-11-14 2017-09-30 13F BWX TECHNOLOGIES COM 05605H100 167,672 -161,630 -49.08 9,393 -41.49 0.0028
2017-08-11 2017-06-30 13F BWX TECHNOLOGIES COM 05605H100 329,302 -805,603 -70.98 16,054 -70.28 0.0049
2017-05-22 2017-03-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 1,134,905 -635,282 -35.89 54,021 -23.13 0.0166
2017-05-12 2017-03-31 13F BWX TECHNOLOGIES COM 05605H100 1,134,905 54,021
2017-02-22 2016-12-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 1,770,187 -551,420 -23.75 70,277 -21.11 0.0230
2017-02-13 2016-12-31 13F BWX TECHNOLOGIES COM 05605H100 1,770,187 70,277
2016-11-10 2016-09-30 13F BWX TECHNOLOGIES COM 05605H100 2,321,607 -278,534 -10.71 89,081 -4.22 0.0304
2016-08-12 2016-06-30 13F BWX TECHNOLOGIES COM 05605H100 2,600,141 -406,520 -13.52 93,007 -7.83 0.0336
2016-05-12 2016-03-31 13F BWX TECHNOLOGIES COM 05605H100 3,006,661 -331,007 -9.92 100,905 -4.84 0.0388
2016-02-09 2015-12-31 13F BWX TECHNOLOGIES COM 05605H100 3,337,668 -432,175 -11.46 106,039 6.71 0.0384
2016-02-08 2015-09-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 3,769,843 850,873 29.15 99,374 3.79 0.0367
2015-11-09 2015-09-30 13F BWX TECHNOLOGIES COM 05605H100 3,769,843 99,374
2015-08-12 2015-06-30 13F BABCOCK & WILCOX CO COM 05615F102 2,918,970 1,968,418 207.08 95,743 213.87 0.0332
2015-08-12 2015-06-30 13F BWX TECHNOLOGIES COM 05605H100 10,511 -940,041 246 0.0001
2015-05-14 2015-03-31 13F BABCOCK & WILCOX CO COM 05615F102 950,552 166,752 21.27 30,504 28.44 0.0112
2015-02-13 2014-12-31 13F BABCOCK & WILCOX CO COM 05615F102 783,800 238,925 43.85 23,749 57.40 0.0087
2014-12-16 2014-09-30 13F/A-1 BABCOCK & WILCOX CO COM 05615F102 544,875 143,289 35.68 15,088 15.75 0.0058
2014-11-14 2014-09-30 13F BABCOCK & WILCOX CO COM 05615F102 544,875 15,088
2014-08-12 2014-06-30 13F BABCOCK & WILCOX CO COM 05615F102 401,586 302,828 306.64 13,035 297.65 0.0223
2014-05-13 2014-03-31 13F BABCOCK & WILCOX CO COM 05615F102 98,758 -191,002 -65.92 3,278 -66.91 0.0014
2014-02-13 2013-12-31 13F BABCOCK & WILCOX CO COM 05615F102 289,760 232,882 409.44 9,907 416.53 0.0042
2013-11-13 2013-09-30 13F BABCOCK & WILCOX COM 05615F102 56,878 -13,993 -19.74 1,918 -9.91 0.0009
2013-08-08 2013-06-30 13F BABCOCK & WILCOX COM 05615F102 70,871 70,871 2,129 0.0011
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.