BWX Technologies, Inc.
US ˙ NYSE ˙ US05605H1005

SecurityBWXT / BWX Technologies, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership398,406 shares
Latest Disclosed Value $ 81,470,043
Citigroup Inc ownership in BWXT / BWX Technologies, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 398,406 shares of BWX Technologies, Inc. (US:BWXT) valued at $81,470,043 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 409,424 shares of BWX Technologies, Inc.. This represents a change in shares of -2.69% during the quarter. The current value of the position is $73,593,556 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (BWXT) 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.

BWXT / 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)
2026-05-11 2026-03-31 13F BWX TECHNOLOGIES COM 05605H100 398,406 -11,018 -2.69 81,470 15.13 0.0175
2026-02-13 2025-12-31 13F BWX TECHNOLOGIES COM 05605H100 409,424 119,989 41.46 70,765 32.61 0.0312
2025-11-10 2025-09-30 13F BWX TECHNOLOGIES COM 05605H100 289,435 30,329 11.71 53,363 42.96 0.0238
2025-08-11 2025-06-30 13F BWX TECHNOLOGIES COM 05605H100 259,106 60,406 30.40 37,327 90.43 0.0183
2025-05-12 2025-03-31 13F BWX TECHNOLOGIES COM 05605H100 198,700 84,471 73.95 19,602 54.06 0.0100
2025-02-12 2024-12-31 13F BWX TECHNOLOGIES COM 05605H100 114,229 5,592 5.15 12,724 7.75 0.0075
2024-11-12 2024-09-30 13F BWX TECHNOLOGIES COM 05605H100 108,637 31,246 40.37 11,809 60.61 0.0068
2024-08-12 2024-06-30 13F BWX TECHNOLOGIES COM 05605H100 77,391 567 0.74 7,352 -6.74 0.0047
2024-05-10 2024-03-31 13F BWX TECHNOLOGIES COM 05605H100 76,824 7,253 10.43 7,884 47.68 0.0052
2024-02-09 2023-12-31 13F BWX TECHNOLOGIES COM 05605H100 69,571 2,321 3.45 5,338 5.87 0.0038
2023-12-06 2023-09-30 13F/A-1 BWX TECHNOLOGIES COM 05605H100 67,250 6,853 11.35 5,042 16.66 0.0038
2023-11-09 2023-09-30 13F BWX TECHNOLOGIES COM 05605H100 67,250 6,853 5,042 0.0015
2023-08-10 2023-06-30 13F BWX TECHNOLOGIES COM 05605H100 60,397 -10,272 -14.54 4,323 -2.96 0.0028
2023-05-11 2023-03-31 13F BWX TECHNOLOGIES COM 05605H100 70,669 -2,989 -4.06 4,455 4.11 0.0031
2023-02-09 2022-12-31 13F BWX TECHNOLOGIES COM 05605H100 73,658 10,002 15.71 4,278 33.44 0.0034
2022-11-10 2022-09-30 13F BWX TECHNOLOGIES COM 05605H100 63,656 -29,510 -31.67 3,206 -37.53 0.0023
2022-08-10 2022-06-30 13F BWX TECHNOLOGIES COM 05605H100 93,166 -32,516 -25.87 5,132 -24.18 0.0038
2022-05-12 2022-03-31 13F BWX TECHNOLOGIES COM 05605H100 125,682 -43,749 -25.82 6,769 -16.56 0.0041
2022-02-10 2021-12-31 13F BWX TECHNOLOGIES COM 05605H100 169,431 30,376 21.84 8,112 8.30 0.0043
2021-11-10 2021-09-30 13F BWX TECHNOLOGIES COM 05605H100 139,055 -8,011 -5.45 7,490 -12.37 0.0044
2021-08-10 2021-06-30 13F BWX TECHNOLOGIES COM 05605H100 147,066 -4,867 -3.20 8,547 -14.69 0.0051
2021-05-13 2021-03-31 13F BWX TECHNOLOGIES COM 05605H100 151,933 -39,746 -20.74 10,019 -13.29 0.0065
2021-02-11 2020-12-31 13F BWX TECHNOLOGIES COM 05605H100 191,679 42,398 28.40 11,554 37.47 0.0068
2020-11-12 2020-09-30 13F BWX TECHNOLOGIES COM 05605H100 149,281 -7,681 -4.89 8,405 -5.47 0.0055
2020-08-12 2020-06-30 13F BWX TECHNOLOGIES COM 05605H100 156,962 18,768 13.58 8,891 32.09 0.0069
2020-05-12 2020-03-31 13F BWX TECHNOLOGIES COM 05605H100 138,194 -17,276 -11.11 6,731 -30.26 0.0061
2020-02-12 2019-12-31 13F BWX TECHNOLOGIES COM 05605H100 155,470 33,181 27.13 9,652 37.94 0.0070
2019-11-08 2019-09-30 13F BWX TECHNOLOGIES COM 05605H100 122,289 95,357 354.07 6,997 398.72 0.0055
2019-08-12 2019-06-30 13F BWX TECHNOLOGIES COM 05605H100 26,932 -104,943 -79.58 1,403 -78.54 0.0011
2019-05-13 2019-03-31 13F BWX TECHNOLOGIES COM 05605H100 131,875 71,050 116.81 6,539 181.25 0.0063
2019-02-12 2018-12-31 13F BWX TECHNOLOGIES COM 05605H100 60,825 49,633 443.47 2,325 232.14 0.0024
2018-11-13 2018-09-30 13F BWX TECHNOLOGIES COM 05605H100 11,192 -79,137 -87.61 700 -87.56 0.0006
2018-08-10 2018-06-30 13F BWX TECHNOLOGIES COM 05605H100 90,329 -5,589 -5.83 5,629 -7.63 0.0052
2018-05-11 2018-03-31 13F BWX TECHNOLOGIES COM 05605H100 95,918 -55,392 -36.61 6,094 -33.42 0.0050
2018-02-12 2017-12-31 13F BWX TECHNOLOGIES COM 05605H100 151,310 18,731 14.13 9,153 23.24 0.0073
2017-11-13 2017-09-30 13F BWX TECHNOLOGIES COM 05605H100 132,579 56,192 73.56 7,427 99.44 0.0061
2017-08-11 2017-06-30 13F BWX TECHNOLOGIES COM 05605H100 76,387 16,658 27.89 3,724 30.99 0.0034
2017-05-12 2017-03-31 13F BWX TECHNOLOGIES COM 05605H100 59,729 -3,136 -4.99 2,843 13.90 0.0025
2017-02-10 2016-12-31 13F BWX TECHNOLOGIES COM 05605H100 62,865 15,379 32.39 2,496 36.99 0.0022
2016-11-10 2016-09-30 13F BWX TECHNOLOGIES COM 05605H100 47,486 -38 -0.08 1,822 7.24 0.0017
2016-08-12 2016-06-30 13F BWX TECHNOLOGIES COM 05605H100 47,524 -26,549 -35.84 1,699 -31.66 0.0017
2016-05-13 2016-03-31 13F BWX TECHNOLOGIES COM 05605H100 74,073 -2,773 -3.61 2,486 1.84 0.0028
2016-02-12 2015-12-31 13F BWX TECHNOLOGIES COM 05605H100 76,846 -3,385 -4.22 2,441 15.41 0.0024
2015-11-13 2015-09-30 13F BWX TECHNOLOGIES COM 05605H100 80,231 80,231 2,115 0.0020
2015-08-13 2015-06-30 13F BABCOCK & WILCOX CO COM 05615F102 0 -44,546 -100.00 0 -100.00
2015-05-14 2015-03-31 13F BABCOCK & WILCOX CO COM 05615F102 44,546 7,049 18.80 1,430 25.88 0.0014
2015-02-17 2014-12-31 13F BABCOCK & WILCOX CO COM 05615F102 37,497 26,992 256.94 1,136 291.72 0.0010
2014-11-14 2014-09-30 13F BABCOCK & WILCOX CO COM 05615F102 10,505 8,836 529.42 290 437.04 0.0003
2014-08-14 2014-06-30 13F BABCOCK & WILCOX CO COM 05615F102 1,669 -834 -33.32 54 -35.71 0.0001
2014-05-15 2014-03-31 13F BABCOCK & WILCOX CO COM 05615F102 2,503 -1,993 -44.33 84 -45.45 0.0001
2014-02-14 2013-12-31 13F BABCOCK & WILCOX CO COM 05615F102 4,496 1,356 43.18 154 46.67 0.0001
2013-11-14 2013-09-30 13F BABCOCK & WILCOX CO COM 05615F102 3,140 -22,127 -87.57 105 -86.17 0.0001
2013-08-14 2013-06-30 13F BABCOCK & WILCOX CO COM 05615F102 25,267 25,267 759 0.0007
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
(%)
2013-11-14 2013-09-30 13F BABCOCK & WILCOX CO COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2013-08-14 2013-06-30 13F BABCOCK & WILCOX CO COM Call 1,500 45 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
(%)
2013-11-14 2013-09-30 13F BABCOCK & WILCOX CO COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2013-08-14 2013-06-30 13F BABCOCK & WILCOX CO COM Put 1,300 39 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.