BWX Technologies, Inc.
DE ˙ DB ˙ US05605H1005
157,65 € ↑0,35 (0,22%)
2026-06-04
DEL PRIS
SecurityDE:4BW / BWX Technologies, Inc.
InstitutionTwo Sigma Advisers, Lp
Latest Disclosed Ownership76,400 shares
Latest Disclosed Value $ 13,204,976
Two Sigma Advisers, Lp reports 879.49% increase in ownership of 4BW / BWX Technologies, Inc.

On February 17, 2026 - Two Sigma Advisers, Lp filed a 13F-HR form disclosing ownership of 76,400 shares of BWX Technologies, Inc. (DE:4BW) valued at $11,311,020 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 7,800 shares of BWX Technologies, Inc.. This represents a change in shares of 879.49% during the quarter. The current value of the position is $12,044,460 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)
2026-02-17 2025-12-31 13F BWX TECHNOLOGIES COM 05605H100 76,400 68,600 879.49 13,205 818.22 0.0257
2025-11-14 2025-09-30 13F BWX TECHNOLOGIES COM 05605H100 7,800 -15,900 -67.09 1,438 -57.88 0.0029
2025-08-14 2025-06-30 13F BWX TECHNOLOGIES COM 05605H100 23,700 4,900 26.06 3,414 84.14 0.0070
2025-05-15 2025-03-31 13F BWX TECHNOLOGIES COM 05605H100 18,800 -2,000 -9.62 1,855 -19.95 0.0042
2025-02-14 2024-12-31 13F BWX TECHNOLOGIES COM 05605H100 20,800 -65,600 -75.93 2,317 -75.34 0.0054
2024-11-14 2024-09-30 13F BWX TECHNOLOGIES COM 05605H100 86,400 70,000 426.83 9,392 502.76 0.0220
2024-08-14 2024-06-30 13F BWX TECHNOLOGIES COM 05605H100 16,400 16,400 1,558 0.0035
2023-08-14 2023-06-30 13F BWX TECHNOLOGIES COM 05605H100 0 -288,600 -100.00 0 -100.00
2023-05-15 2023-03-31 13F BWX TECHNOLOGIES COM 05605H100 288,600 -69,400 -19.39 18,193 -12.50 0.0469
2023-02-14 2022-12-31 13F BWX TECHNOLOGIES COM 05605H100 358,000 -52,400 -12.77 20,793 0.58 0.0581
2022-11-14 2022-09-30 13F BWX TECHNOLOGIES COM 05605H100 410,400 89,000 27.69 20,672 16.75 0.0598
2022-08-15 2022-06-30 13F BWX TECHNOLOGIES COM 05605H100 321,400 163,000 102.90 17,706 107.55 0.0502
2022-05-16 2022-03-31 13F BWX TECHNOLOGIES COM 05605H100 158,400 158,400 8,531 0.0227
2020-09-15 2020-06-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 0 -19,900 -100.00 0 -100.00
2020-08-14 2020-06-30 13F BWX TECHNOLOGIES COM 05605H100 0 -19,900 0 0.0000
2020-05-15 2020-03-31 13F BWX TECHNOLOGIES COM 05605H100 19,900 -165,200 -89.25 969 -91.57 0.0037
2020-02-14 2019-12-31 13F BWX TECHNOLOGIES COM 05605H100 185,100 -116,900 -38.71 11,491 -33.49 0.0267
2019-11-14 2019-09-30 13F BWX TECHNOLOGIES COM 05605H100 302,000 -34,100 -10.15 17,277 -1.34 0.0423
2019-08-14 2019-06-30 13F BWX TECHNOLOGIES COM 05605H100 336,100 137,300 69.06 17,511 77.65 0.0436
2019-05-15 2019-03-31 13F BWX TECHNOLOGIES COM 05605H100 198,800 93,700 89.15 9,857 145.32 0.0249
2019-02-14 2018-12-31 13F BWX TECHNOLOGIES COM 05605H100 105,100 36,216 52.58 4,018 -6.73 0.0110
2018-11-14 2018-09-30 13F BWX TECHNOLOGIES COM 05605H100 68,884 -19,800 -22.33 4,308 -22.06 0.0105
2018-08-14 2018-06-30 13F BWX TECHNOLOGIES COM 05605H100 88,684 -11,300 -11.30 5,527 -12.99 0.0149
2018-05-15 2018-03-31 13F BWX TECHNOLOGIES COM 05605H100 99,984 -48,299 -32.57 6,352 -29.19 0.0172
2018-02-14 2017-12-31 13F BWX TECHNOLOGIES COM 05605H100 148,283 -23,100 -13.48 8,970 -6.57 0.0242
2017-11-14 2017-09-30 13F BWX TECHNOLOGIES COM 05605H100 171,383 -101,700 -37.24 9,601 -27.88 0.0272
2017-08-14 2017-06-30 13F BWX TECHNOLOGIES COM 05605H100 273,083 -462,500 -62.88 13,313 -61.98 0.0439
2017-05-15 2017-03-31 13F BWX TECHNOLOGIES COM 05605H100 735,583 424,032 136.10 35,014 183.08 0.1148
2017-02-14 2016-12-31 13F BWX TECHNOLOGIES COM 05605H100 311,551 -362,001 -53.75 12,369 -52.14 0.0473
2016-11-14 2016-09-30 13F BWX TECHNOLOGIES COM 05605H100 673,552 44,499 7.07 25,844 14.86 0.1101
2016-08-15 2016-06-30 13F BWX TECHNOLOGIES COM 05605H100 629,053 114,600 22.28 22,501 30.33 0.1143
2016-05-16 2016-03-31 13F BWX TECHNOLOGIES COM 05605H100 514,453 16,055 3.22 17,265 9.04 0.0966
2016-02-16 2015-12-31 13F BWX TECHNOLOGIES COM 05605H100 498,398 59,945 13.67 15,834 36.95 0.0944
2015-11-16 2015-09-30 13F BWX TECHNOLOGIES COM 05605H100 438,453 59,279 15.63 11,562 -7.04 0.0729
2016-02-09 2015-06-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 379,174 318,121 521.06 12,437 534.86 0.0957
2015-08-14 2015-06-30 13F BWX TECHNOLOGIES COM 05605H100 358,174 11,748
2015-08-14 2015-06-30 13F BABCOCK & WILCOX COMMON STOCK 05615F102 19,600 651
2016-02-09 2015-03-31 13F/A-1 BABCOCK + WILCOX COMMON STOCK 05615F102 61,053 -32,700 -34.88 1,959 -31.05 0.0150
2015-05-15 2015-03-31 13F BABCOCK + WILCOX COMMON STOCK 05615F102 60,953 1,957
2016-02-09 2014-12-31 13F/A-1 BABCOCK + WILCOX COMMON STOCK 05615F102 93,753 -119,400 -56.02 2,841 -51.86 0.0227
2015-02-17 2014-12-31 13F BABCOCK + WILCOX COMMON STOCK 05615F102 93,953 2,847
2016-02-09 2014-09-30 13F/A-1 BABCOCK & WILCOX CO COM 05615F102 213,153 168,300 375.23 5,902 305.36 0.0465
2014-11-14 2014-09-30 13F BABCOCK & WILCOX CO COM 05615F102 213,053 5,899
2016-02-09 2014-06-30 13F/A-1 BABCOCK & WILCOX Common Stock 05615F102 44,853 44,853 -7.62 1,456 -11.06 0.0117
2014-08-14 2014-06-30 13F BABCOCK & WILCOX Common Stock 05615F102 44,853 1,456
2014-02-14 2013-12-31 13F Babcock & Wilcox Common Stock 05615F102 0 -48,553 -100.00 0 -100.00
2013-11-14 2013-09-30 13F Babcock & Wilcox Common Stock 05615F102 48,553 48,553 1,637 0.0195
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.