BWX Technologies, Inc.
DE ˙ DB ˙ US05605H1005
157,65 € ↑0,35 (0,22%)
2026-06-04
DEL PRIS
SecurityDE:4BW / BWX Technologies, Inc.
InstitutionJpmorgan Chase & Co
Latest Disclosed Ownership2,572,811 shares
Latest Disclosed Value $ 492,924,943
Jpmorgan Chase & Co ownership in 4BW / BWX Technologies, Inc.

On May 13, 2026 - Jpmorgan Chase & Co filed a 13F-HR/A form disclosing ownership of 2,572,811 shares of BWX Technologies, Inc. (DE:4BW) valued at $455,387,547 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 2,031,932 shares of BWX Technologies, Inc.. This represents a change in shares of 26.62% during the quarter. The current value of the position is $405,603,654 USD.

Jpmorgan Chase & Co has a history of taking positions in derivatives of the underlying security (4BW) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:4BW / BWX Technologies, Inc. Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 2,572,811 540,879 26.62 492,925 40.35 0.0034
2026-02-11 2025-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 2,031,932 1,691,993 497.73 351,199 460.36 0.0220
2025-11-26 2025-09-30 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 339,939 85,685 33.70 62,675 71.11 0.0038
2025-11-07 2025-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 339,939 85,685 62,675 0.0038
2025-08-12 2025-06-30 13F BWX TECHNOLOGIES COMMON 05605H100 254,254 -63,107 -19.88 36,628 16.99 0.0024
2025-05-12 2025-03-31 13F BWX TECHNOLOGIES COMMON 05605H100 317,361 26,708 9.19 31,308 -3.30 0.0023
2025-02-12 2024-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 290,653 18,382 6.75 32,376 9.39 0.0024
2024-12-26 2024-09-30 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 272,271 1,584 0.59 29,596 15.09 0.0022
2024-11-08 2024-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 272,271 1,584 29,596 0.0023
2024-12-26 2024-06-30 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 270,687 61,069 29.13 25,715 19.55 0.0021
2024-08-12 2024-06-30 13F BWX TECHNOLOGIES COMMON 05605H100 270,687 61,069 25,715 0.0021
2024-12-26 2024-03-31 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 209,618 -25,762 -10.94 21,511 19.10 0.0018
2024-05-10 2024-03-31 13F BWX TECHNOLOGIES COMMON 05605H100 209,618 -25,762 21,511 0.0018
2024-12-26 2023-12-31 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 235,380 -73,711 -23.85 18,061 -22.07 0.0017
2024-02-12 2023-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 235,380 -73,711 18,061 0.0017
2023-11-14 2023-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 309,091 -16,603 -5.10 23,176 -0.57 0.0026
2023-08-11 2023-06-30 13F BWX TECHNOLOGIES COMMON 05605H100 325,694 78,528 31.77 23,310 49.59 0.0025
2023-05-18 2023-03-31 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 247,166 52,013 26.65 15,582 141,554.55 0.0019
2023-05-11 2023-03-31 13F BWX TECHNOLOGIES COMMON 05605H100 196,150 997 15,582 0.0002
2023-02-13 2022-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 195,153 -111,831 -36.43 11 -99.93 0.0015
2022-11-14 2022-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 306,984 94,903 44.75 15,464 32.35 0.0022
2022-08-11 2022-06-30 13F BWX TECHNOLOGIES COMMON 05605H100 212,081 41,429 24.28 11,684 27.12 0.0016
2022-05-11 2022-03-31 13F BWX TECHNOLOGIES COMMON 05605H100 170,652 32,688 23.69 9,191 39.13 0.0011
2022-02-11 2021-12-31 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 137,964 15,746 12.88 6,606 0.36 0.0008
2022-02-10 2021-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 137,964 15,746 6,606 0.0008
2021-11-12 2021-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 122,218 -7,688 -5.92 6,582 -12.83 0.0008
2021-08-12 2021-06-30 13F BWX TECHNOLOGIES COMMON 05605H100 129,906 -1,284 -0.98 7,551 -12.72 0.0009
2021-05-12 2021-03-31 13F BWX TECHNOLOGIES COMMON 05605H100 131,190 8,472 6.90 8,651 16.95 0.0012
2021-02-19 2020-12-31 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 122,718 -11,099 -8.29 7,397 -3.48 0.0011
2021-02-11 2020-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 122,718 -11,099 7,397 182.9331
2020-11-12 2020-09-30 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 133,817 -113,281 -45.84 7,664 -45.24 0.0013
2020-11-12 2020-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 133,817 7,664
2020-08-11 2020-06-30 13F BWX TECHNOLOGIES COMMON 05605H100 247,098 184,822 296.78 13,996 361.61 0.0027
2020-05-12 2020-03-31 13F BWX TECHNOLOGIES COMMON 05605H100 62,276 5,996 10.65 3,032 -13.22 0.0007
2020-02-11 2019-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 56,280 -6 -0.01 3,494 8.54 0.0007
2019-11-12 2019-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 56,286 -3,198 -5.38 3,219 5.20 0.0006
2019-08-07 2019-06-30 13F BWX TECHNOLOGIES COMMON 05605H100 59,484 -10,495 -15.00 3,060 -11.82 0.0006
2019-05-07 2019-03-31 13F BWX TECHNOLOGIES COMMON 05605H100 69,979 -5,141 -6.84 3,470 20.82 0.0007
2019-02-11 2018-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 75,120 -1,756 -2.28 2,872 -40.25 0.0007
2018-11-13 2018-09-30 13F/A-1 BWX TECHNOLOGIES COMMON 05605H100 76,876 -24,818 -24.40 4,807 -24.16 0.0009
2018-11-07 2018-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 76,876 -24,818 4,807
2018-08-14 2018-06-30 13F BWX TECHNOLOGIES COMMON 05605H100 101,694 -119,733 -54.07 6,338 -54.94 0.0013
2018-05-10 2018-03-31 13F BWX TECHNOLOGIES COMMON 05605H100 221,427 -129,832 -36.96 14,067 -33.79 0.0030
2018-02-13 2017-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 351,259 -129,342 -26.91 21,247 -21.14 0.0045
2017-11-09 2017-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 480,601 -127,131 -20.92 26,943 -9.07 0.0059
2017-08-09 2017-06-30 13F BWX TECHNOLOGIES COMMON 05605H100 607,732 11,401 1.91 29,629 4.38 0.0068
2017-05-10 2017-03-31 13F BWX TECHNOLOGIES COMMON 05605H100 596,331 75,327 14.46 28,385 37.23 0.0065
2017-02-06 2016-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 521,004 -290,981 -35.84 20,684 -33.61 0.0050
2016-11-04 2016-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 811,985 -368,895 -31.24 31,156 -26.24 0.0077
2016-08-08 2016-06-30 13F BWX TECHNOLOGIES COMMON 05605H100 1,180,880 -263,915 -18.27 42,240 -12.89 0.0105
2016-05-10 2016-03-31 13F BWX TECHNOLOGIES COMMON 05605H100 1,444,795 998,414 223.67 48,488 241.90 0.0124
2016-02-12 2015-12-31 13F BWX TECHNOLOGIES COMMON 05605H100 446,381 315,541 241.17 14,182 311.19 0.0036
2015-11-13 2015-09-30 13F BWX TECHNOLOGIES COMMON 05605H100 130,840 19,110 17.10 3,449 -5.87 0.0009
2015-08-14 2015-06-30 13F BABCOCK & WILCOX COMMON 05615F102 111,730 72,623 185.70 3,664 192.19 0.0009
2015-05-15 2015-03-31 13F BABCOCK & WILCOX COMMON 05615F102 39,107 3,213 8.95 1,254 15.15 0.0003
2015-02-13 2014-12-31 13F BABCOCK & WILCOX COMMON 05615F102 35,894 -1,839 -4.87 1,089 4.31 0.0002
2014-12-08 2014-09-30 13F/A-1 BABCOCK & WILCOX COMMON 05615F102 37,733 -24,657 -39.52 1,044 -48.47 0.0002
2014-11-14 2014-09-30 13F BABCOCK & WILCOX COMMON 05615F102 37,733 1,044
2014-09-03 2014-06-30 13F/A-1 BABCOCK & WILCOX COMMON 05615F102 62,390 -34,718 -35.75 2,026 -37.14 0.0005
2014-08-14 2014-06-30 13F BABCOCK & WILCOX COMMON 05615F102 62,390 2,026
2014-05-15 2014-03-31 13F BABCOCK & WILCOX CO COMMON 05615F102 97,108 -2,164 -2.18 3,223 -5.04 0.0009
2014-02-26 2013-12-31 13F/A-1 BABCOCK & WILCOX CO COMMON 05615F102 99,272 -19,994 -16.76 3,394 -15.61 0.0010
2014-02-13 2013-12-31 13F BABCOCK & WILCOX CO COMMON 05615F102 99,272 3,394
2013-10-31 2013-09-30 13F BABCOCK & WILCOX CO COMMON 05615F102 119,266 -5,284 -4.24 4,022 7.54 0.0012
2013-08-13 2013-06-30 13F BABCOCK & WILCOX CO COMMON 05615F102 124,550 124,550 3,740 0.0012
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A BWX TECHNOLOGIES OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-05-13 2026-03-31 13F BWX TECHNOLOGIES OPTION Call 0 0 n/a n/a n/a
2026-02-11 2025-12-31 13F BWX TECHNOLOGIES OPTION Call 48,000 8,296 n/a n/a n/a
2025-11-26 2025-09-30 13F/A BWX TECHNOLOGIES OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-07 2025-09-30 13F BWX TECHNOLOGIES OPTION Call 0 0 n/a n/a n/a
2025-08-12 2025-06-30 13F BWX TECHNOLOGIES OPTION Call 1,600 230 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-11-08 2024-09-30 13F BWX TECHNOLOGIES OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-12-26 2024-06-30 13F/A BWX TECHNOLOGIES OPTION Put 1,400 133 n/a n/a n/a
2024-08-12 2024-06-30 13F BWX TECHNOLOGIES OPTION Put 1,400 133 n/a n/a n/a
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.