BWX 技術公司
MX ˙ BMV ˙ US05605H1005
SecurityMX:BWXT / BWX Technologies, Inc.
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership28,049 shares
Latest Disclosed Value $ 5,735,879
Rockefeller Capital Management L.P. reports 0.44% decrease in ownership of BWXT / BWX Technologies, Inc.

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 28,049 shares of BWX Technologies, Inc. (MX:BWXT) valued at $5,735,879 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 28,172 shares of BWX Technologies, Inc.. This represents a change in shares of -0.44% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-14 2026-03-31 13F BWX TECHNOLOGIES COM 05605H100 28,049 -123 -0.44 5,736 17.79 0.0053
2026-03-16 2025-12-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 28,172 926 3.40 4,869 -3.07 0.0088
2026-02-14 2025-12-31 13F BWX TECHNOLOGIES COM 05605H100 28,173 927 4,869 0.0088
2025-11-14 2025-09-30 13F BWX TECHNOLOGIES COM 05605H100 27,246 1,392 5.38 5,023 34.88 0.0098
2025-08-14 2025-06-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 25,854 -1,479 -5.41 3,725 38.13 0.0082
2025-08-08 2025-06-30 13F BWX TECHNOLOGIES COM 05605H100 25,854 -1,479 3,725 0.0047
2025-05-14 2025-03-31 13F BWX TECHNOLOGIES COM 05605H100 27,333 5,806 26.97 2,696 12.47 0.0067
2025-02-13 2024-12-31 13F BWX TECHNOLOGIES COM 05605H100 21,527 1,636 8.22 2,398 10.87 0.0062
2024-11-14 2024-09-30 13F BWX TECHNOLOGIES COM 05605H100 19,891 -1,101 -5.24 2,162 8.43 0.0058
2024-08-12 2024-06-30 13F BWX TECHNOLOGIES COM 05605H100 20,992 462 2.25 1,994 -5.32 0.0057
2024-05-14 2024-03-31 13F BWX TECHNOLOGIES COM 05605H100 20,530 475 2.37 2,107 36.93 0.0061
2024-02-14 2023-12-31 13F BWX TECHNOLOGIES COM 05605H100 20,055 -10,973 -35.36 1,539 -33.88 0.0051
2023-11-14 2023-09-30 13F BWX TECHNOLOGIES COM 05605H100 31,028 -1,609 -4.93 2,327 -0.39 0.0090
2023-08-14 2023-06-30 13F BWX TECHNOLOGIES COM 05605H100 32,637 2,439 8.08 2,336 233,400.00 0.0090
2023-05-16 2023-03-31 13F BWX TECHNOLOGIES COM 05605H100 30,198 -4,160 -12.11 2 -99.95 0.0082
2023-03-06 2022-12-31 13F BWX TECHNOLOGIES COM 05605H100 34,358 -213 -0.62 1,995 14.59 0.0100
2022-11-02 2022-09-30 13F BWX TECHNOLOGIES COM 05605H100 34,571 2,431 7.56 1,741 -1.64 0.0090
2022-08-12 2022-06-30 13F BWX TECHNOLOGIES COM 05605H100 32,140 -515 -1.58 1,770 0.68 0.0094
2022-05-13 2022-03-31 13F BWX TECHNOLOGIES COM 05605H100 32,655 3 0.01 1,758 12.48 0.0085
2022-02-14 2021-12-31 13F BWX TECHNOLOGIES COM 05605H100 32,652 12,852 64.91 1,563 46.62 0.0073
2021-11-12 2021-09-30 13F BWX TECHNOLOGIES COM 05605H100 19,800 4,015 25.44 1,066 16.25 0.0056
2021-08-10 2021-06-30 13F BWX TECHNOLOGIES COM 05605H100 15,785 13,020 470.89 917 403.85 0.0052
2021-05-11 2021-03-31 13F BWX TECHNOLOGIES COM 05605H100 2,765 0 0.00 182 9.64 0.0012
2021-02-12 2020-12-31 13F BWX TECHNOLOGIES COM 05605H100 2,765 69 2.56 166 9.93 0.0013
2020-11-13 2020-09-30 13F BWX TECHNOLOGIES COM 05605H100 2,696 -30 -1.10 151 -1.95 0.0014
2020-08-12 2020-06-30 13F BWX TECHNOLOGIES COM 05605H100 2,726 33 1.23 154 17.56 0.0016
2020-05-12 2020-03-31 13F BWX TECHNOLOGIES COM 05605H100 2,693 2,275 544.26 131 403.85 0.0017
2020-02-07 2019-12-31 13F BWX TECHNOLOGIES COM 05605H100 418 0 0.00 26 8.33 0.0003
2019-11-12 2019-09-30 13F BWX TECHNOLOGIES COM 05605H100 418 -17 -3.91 24 4.35 0.0003
2019-08-09 2019-06-30 13F BWX TECHNOLOGIES COM 05605H100 435 -662 -60.35 23 -58.18 0.0003
2019-05-10 2019-03-31 13F BWX TECHNOLOGIES COM 05605H100 1,097 403 58.07 55 111.54 0.0008
2019-02-12 2018-12-31 13F BWX TECHNOLOGIES COM 05605H100 694 300 76.14 26 4.00 0.0005
2018-11-02 2018-09-30 13F BWX Technologies Common 05605H100 394 0 0.00 25 0.00 0.0004
2018-07-31 2018-06-30 13F BWX Technologies Common 05605H100 394 394 25 0.0004
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.