BWX Technologies, Inc.
DE ˙ DB ˙ US05605H1005
160,85 € ↑3,20 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4BW / BWX Technologies, Inc.
InstitutionGuggenheim Capital Llc
Latest Disclosed Ownership8,476 shares
Latest Disclosed Value $ 1,733,257
Guggenheim Capital Llc reports 226.25% increase in ownership of 4BW / BWX Technologies, Inc.

On May 15, 2026 - Guggenheim Capital Llc filed a 13F-HR form disclosing ownership of 8,476 shares of BWX Technologies, Inc. (DE:4BW) valued at $1,500,252 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,598 shares of BWX Technologies, Inc.. This represents a change in shares of 226.25% during the quarter. The current value of the position is $1,363,365 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 8,476 5,878 226.25 1,733 285.97 0.0067
2026-02-17 2025-12-31 13F BWX TECHNOLOGIES COM 05605H100 2,598 55 2.16 449 -4.06 0.0032
2025-11-13 2025-09-30 13F BWX TECHNOLOGIES COM 05605H100 2,543 -12 -0.47 469 27.17 0.0034
2025-08-13 2025-06-30 13F BWX TECHNOLOGIES COM 05605H100 2,555 -218 -7.86 368 34.80 0.0029
2025-05-14 2025-03-31 13F BWX TECHNOLOGIES COM 05605H100 2,773 -393 -12.41 274 -22.44 0.0025
2025-02-13 2024-12-31 13F BWX TECHNOLOGIES COM 05605H100 3,166 3,166 353 0.0029
2024-02-14 2023-12-31 13F BWX TECHNOLOGIES COM 05605H100 0 -7,141 -100.00 0 -100.00
2023-11-14 2023-09-30 13F BWX TECHNOLOGIES COM 05605H100 7,141 942 15.20 535 20.77 0.0046
2023-08-11 2023-06-30 13F BWX TECHNOLOGIES COM 05605H100 6,199 1,861 42.90 444 62.27 0.0035
2023-05-11 2023-03-31 13F BWX TECHNOLOGIES COM 05605H100 4,338 -14 -0.32 273 8.33 0.0023
2023-02-14 2022-12-31 13F BWX TECHNOLOGIES COM 05605H100 4,352 -4,172 -48.94 253 -41.26 0.0022
2022-11-14 2022-09-30 13F BWX TECHNOLOGIES COM 05605H100 8,524 -2,554 -23.05 429 -29.67 0.0039
2022-08-15 2022-06-30 13F BWX TECHNOLOGIES COM 05605H100 11,078 -163 -1.45 610 0.83 0.0048
2022-05-16 2022-03-31 13F BWX TECHNOLOGIES COM 05605H100 11,241 -99 -0.87 605 11.42 0.0036
2022-02-14 2021-12-31 13F BWX TECHNOLOGIES COM 05605H100 11,340 -2,339 -17.10 543 -26.32 0.0028
2021-11-15 2021-09-30 13F BWX TECHNOLOGIES COM 05605H100 13,679 -1,666 -10.86 737 -17.38 0.0044
2021-08-13 2021-06-30 13F BWX TECHNOLOGIES COM 05605H100 15,345 297 1.97 892 -10.08 0.0053
2021-05-13 2021-03-31 13F BWX TECHNOLOGIES COM 05605H100 15,048 -3,947 -20.78 992 -13.36 0.0065
2021-02-16 2020-12-31 13F BWX TECHNOLOGIES COM 05605H100 18,995 -1,556 -7.57 1,145 -1.04 0.0072
2020-11-13 2020-09-30 13F BWX TECHNOLOGIES COM 05605H100 20,551 -4,760 -18.81 1,157 -19.32 0.0084
2020-08-14 2020-06-30 13F BWX TECHNOLOGIES COM 05605H100 25,311 626 2.54 1,434 19.30 0.0111
2020-06-02 2020-03-31 13F BWX TECHNOLOGIES COM 05605H100 24,685 2,429 10.91 1,202 -13.02 0.0121
2020-02-20 2019-12-31 13F/A-1 BWX TECHNOLOGIES COM 05605H100 22,256 5,211 30.57 1,382 41.74 0.0104
2020-02-14 2019-12-31 13F BWX TECHNOLOGIES COM 05605H100 22,256 5,211 1,382 8,190.8377
2020-02-20 2019-09-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 17,045 5,238 44.36 975 58.54 0.0078
2019-11-14 2019-09-30 13F BWX TECHNOLOGIES COM 05605H100 17,045 5,238 975 7,145.0860
2019-08-14 2019-06-30 13F BWX TECHNOLOGIES COM 05605H100 11,807 7,343 164.49 615 178.28 0.0050
2019-05-15 2019-03-31 13F BWX TECHNOLOGIES COM 05605H100 4,464 4,464 221 0.0018
2018-08-14 2018-06-30 13F BWX TECHNOLOGIES COM 05605H100 0 -26,945 -100.00 0 -100.00
2018-05-15 2018-03-31 13F BWX TECHNOLOGIES COM 05605H100 26,945 2,832 11.74 1,712 17.34 0.0042
2018-02-14 2017-12-31 13F BWX TECHNOLOGIES COM 05605H100 24,113 -11,047 -31.42 1,459 -25.94 0.0035
2017-11-14 2017-09-30 13F BWX TECHNOLOGIES COM 05605H100 35,160 21,288 153.46 1,970 191.42 0.0046
2017-08-14 2017-06-30 13F BWX TECHNOLOGIES COM 05605H100 13,872 -23,614 -62.99 676 -62.11 0.0018
2017-05-15 2017-03-31 13F BWX TECHNOLOGIES COM 05605H100 37,486 -6,668 -15.10 1,784 1.77 0.0048
2017-02-14 2016-12-31 13F BWX TECHNOLOGIES COM 05605H100 44,154 15,614 54.71 1,753 60.09 0.0050
2016-11-14 2016-09-30 13F BWX TECHNOLOGIES COM 05605H100 28,540 -676 -2.31 1,095 4.78 0.0034
2016-08-15 2016-06-30 13F BWX TECHNOLOGIES COM 05605H100 29,216 -4,039 -12.15 1,045 -6.36 0.0033
2016-05-16 2016-03-31 13F BWX TECHNOLOGIES COM 05605H100 33,255 -7,282 -17.96 1,116 -13.35 0.0035
2016-02-16 2015-12-31 13F BWX TECHNOLOGIES COM 05605H100 40,537 -7,049 -14.81 1,288 2.63 0.0037
2015-11-16 2015-09-30 13F BWX TECHNOLOGIES COM 05605H100 47,586 40,092 534.99 1,255 410.16 0.0039
2015-08-14 2015-06-30 13F BABCOCK & WILCOX CO COM 05615F102 7,494 -20,330 -73.07 246 -72.45 0.0006
2015-05-18 2015-03-31 13F/A-1 BABCOCK & WILCOX CO COM 05615F102 27,824 20,076 259.11 893 280.00 0.0021
2015-05-15 2015-03-31 13F BABCOCK & WILCOX CO COM 05615F102 27,824 893
2015-02-17 2014-12-31 13F BABCOCK & WILCOX CO COM 05615F102 7,748 278 3.72 235 13.53 0.0006
2014-11-14 2014-09-30 13F BABCOCK & WILCOX CO COM 05615F102 7,470 -7,753 -50.93 207 -58.01 0.0005
2014-08-14 2014-06-30 13F BABCOCK & WILCOX CO COM 05615F102 15,223 -22,846 -60.01 493 -61.00 0.0012
2014-05-16 2014-03-31 13F BABCOCK & WILCOX CO COM 05615F102 38,069 8,428 28.43 1,264 24.78 0.0036
2014-02-14 2013-12-31 13F BABCOCK & WILCOX CO COM 05615F102 29,641 -518,949 -94.60 1,013 -94.52 0.0031
2013-11-14 2013-09-30 13F BABCOCK & WILCOX CO COM 05615F102 548,590 -497 -0.09 18,499 12.19 0.0664
2013-08-22 2013-06-30 13F/A-1 BABCOCK & WILCOX CO COM 05615F102 549,087 549,087 16,489 0.0694
2013-08-14 2013-06-30 13F BABCOCK & WILCOX CO COM 05615F102 617,486 19,498 0.0822
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.