BWX Technologies, Inc.
US ˙ NYSE ˙ US05605H1005

SecurityBWXT / BWX Technologies, Inc.
InstitutionBessemer Group Inc
Latest Disclosed Ownership626,109 shares
Latest Disclosed Value $ 128,035
Bessemer Group Inc reports 1.88% increase in ownership of BWXT / BWX Technologies, Inc.

On May 6, 2026 - Bessemer Group Inc filed a 13F-HR form disclosing ownership of 626,109 shares of BWX Technologies, Inc. (US:BWXT) valued at $128,033,029 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 614,583 shares of BWX Technologies, Inc.. This represents a change in shares of 1.88% during the quarter. The current value of the position is $115,654,854 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)
2026-05-06 2026-03-31 13F BWX TECHNOLOGIES SC 05605H100 626,109 11,526 1.88 128 20.75 0.2013
2026-02-05 2025-12-31 13F BWX TECHNOLOGIES SC 05605H100 614,583 -158,274 -20.48 106 -25.35 0.1631
2025-11-05 2025-09-30 13F BWX TECHNOLOGIES SC 05605H100 772,857 -266,343 -25.63 142 -4.70 0.2179
2025-08-01 2025-06-30 13F BWX TECHNOLOGIES SC 05605H100 1,039,200 977 0.09 150 46.08 0.2430
2025-04-23 2025-03-31 13F BWX TECHNOLOGIES SC 05605H100 1,038,223 16,262 1.59 102 -9.73 0.1836
2025-02-13 2024-12-31 13F BWX TECHNOLOGIES SC 05605H100 1,021,961 -84,977 -7.68 114 -5.83 0.1858
2024-11-12 2024-09-30 13F BWX TECHNOLOGIES SC 05605H100 1,106,938 223,770 25.34 120 44.58 0.1982
2024-08-13 2024-06-30 13F BWX TECHNOLOGIES SC 05605H100 883,168 48,195 5.77 84 -2.35 0.1480
2024-08-13 2024-03-31 13F/A-1 BWX TECHNOLOGIES SC 05605H100 834,973 827,523 11,107.69 86 0.1549
2024-05-13 2024-03-31 13F BWX TECHNOLOGIES SC 05605H100 834,973 827,523 86 0.1549
2024-02-09 2023-12-31 13F BWX TECHNOLOGIES SC 05605H100 7,450 -777 -9.44 1 0.0011
2023-11-13 2023-09-30 13F BWX TECHNOLOGIES SC 05605H100 8,227 -559 -6.36 1 0.0014
2023-08-10 2023-06-30 13F BWX TECHNOLOGIES SC 05605H100 8,786 7,087 417.13 1 0.0013
2023-05-10 2023-03-31 13F BWX TECHNOLOGIES SC 05605H100 1,699 1,699 0 0.0003
2023-02-13 2022-12-31 13F BWX TECHNOLOGIES SC 05605H100 0 -203 -100.00 0 -100.00
2022-11-09 2022-09-30 13F BWX TECHNOLOGIES SC 05605H100 203 159 361.36 10 400.00 0.0000
2022-08-10 2022-06-30 13F BWX TECHNOLOGIES SC 05605H100 44 44 2 0.0000
2022-01-27 2021-12-31 13F BWX TECHNOLOGIES SC 05605H100 0 -111 -100.00 0 -100.00
2021-11-12 2021-09-30 13F BWX TECHNOLOGIES SC 05605H100 111 -89 -44.50 6 -50.00 0.0000
2021-02-09 2020-12-31 13F BWX TECHNOLOGIES SC 05605H100 200 0 0.00 12 9.09 0.0000
2020-11-12 2020-09-30 13F BWX TECHNOLOGIES SC 05605H100 200 0 0.00 11 0.00 0.0000
2020-08-05 2020-06-30 13F BWX TECHNOLOGIES SC 05605H100 200 -93 -31.74 11 -26.67 0.0000
2020-04-30 2020-03-31 13F BWX TECHNOLOGIES SC 05605H100 293 200 215.05 15 150.00 0.0001
2020-02-04 2019-12-31 13F BWX TECHNOLOGIES SC 05605H100 93 93 6 0.0000
2019-07-19 2019-06-30 13F BWX TECHNOLOGIES SC 05605H100 0 -80 -100.00 0 -100.00
2019-05-13 2019-03-31 13F BWX TECHNOLOGIES SC 05605H100 80 -422 -84.06 4 -78.95 0.0000
2019-05-21 2018-12-31 13F/A-1 BWX TECHNOLOGIES SC 05605H100 502 80 18.96 19 -26.92 0.0001
2019-02-12 2018-12-31 13F BWX TECHNOLOGIES SC 05605H100 502 80 19 0.0001
2018-11-06 2018-09-30 13F BWX TECHNOLOGIES SC 05605H100 422 0 0.00 26 0.00 0.0001
2018-07-25 2018-06-30 13F BWX TECHNOLOGIES SC 05605H100 422 0 0.00 26 -3.70 0.0001
2018-05-10 2018-03-31 13F BWX TECHNOLOGIES SC 05605H100 422 0 0.00 27 3.85 0.0001
2018-01-30 2017-12-31 13F BWX TECHNOLOGIES SC 05605H100 422 0 0.00 26 8.33 0.0001
2017-11-03 2017-09-30 13F BWX TECHNOLOGIES SC 05605H100 422 422 24 0.0001
2017-05-12 2017-03-31 13F BWX TECHNOLOGIES SC 05605H100 0 -480 -100.00 0 -100.00
2017-02-07 2016-12-31 13F BWX TECHNOLOGIES SC 05605H100 480 480 19 0.0001
2014-11-13 2014-09-30 13F BABCOCK & WILCOX CO NEWCOM SC 05615F102 0 -72 -100.00 0 -100.00
2014-08-13 2014-06-30 13F BABCOCK & WILCOX CO NEWCOM SC 05615F102 72 72 2 0.0000
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.