Company · Ownership research

BWX Technologies, Inc. BWXT

CIK 0001486957 · CUSIP 05605H100

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 05605H100 (BWXT), not CUSIP 05605H900 (BWXT), CUSIP 05605H950 (BWXT), and does not merge CUSIPs.

This page lists the top 20 of 704 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$2.27B 12,325,403 shares	0.04%	+2.01M(+19.50%)Added	SEC filing ↗ Nov 12, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$1.69B 9,181,311 shares	0.03%	-200.69K(-2.10%)Reduced	SEC filing ↗ Nov 7, 2025	▾
03	STATE STREET CORP CIK 93751 · View history	$662.21M 3,591,751 shares	0.02%	-48.76K(-1.30%)Reduced	SEC filing ↗ Nov 14, 2025	▾
04	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$552.44M 2,996,364 shares	0.34%	-1.57M(-34.30%)Reduced	SEC filing ↗ Nov 14, 2025	▾
05	Invesco Ltd. CIK 914208 · View history	$469.99M 2,549,150 shares	0.07%	+956.77K(+60.10%)Added	SEC filing ↗ Nov 13, 2025	▾
06	FRANKLIN RESOURCES INC CIK 38777 · View history	$406.48M 2,204,688 shares	0.10%	-185.92K(-7.80%)Reduced	SEC filing ↗ Nov 13, 2025	▾
07	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$329.71M 1,787,859 shares	0.02%	+47.96K(+2.80%)Added	SEC filing ↗ Nov 12, 2025	▾
08	ALKEON CAPITAL MANAGEMENT LLC CIK 1230239 · View history	$290.94M 1,578,048 shares	1.31%	+978.00K(+163.00%)Added	SEC filing ↗ Nov 14, 2025	▾
09	SNYDER CAPITAL MANAGEMENT L P CIK 1050477 · View history	$286.72M 1,555,146 shares	5.42%	-88.35K(-5.40%)Reduced	SEC filing ↗ Nov 12, 2025	▾
10	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC CIK 1644956 · View history	$231.44M 1,255,310 shares	0.60%	-262.05K(-17.30%)Reduced	SEC filing ↗ Nov 12, 2025	▾
11	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$231.34M 1,254,779 shares	0.17%	+299.38K(+31.30%)Added	SEC filing ↗ Nov 12, 2025	▾
12	Artisan Partners Limited Partnership CIK 1466153 · View history	$219.80M 1,192,148 shares	0.32%	-84.12K(-6.60%)Reduced	SEC filing ↗ Nov 12, 2025	▾
13	BLAIR WILLIAM & CO/IL CIK 902367 · View history	$219.60M 1,191,068 shares	0.58%	+187.46K(+18.70%)Added	SEC filing ↗ Nov 12, 2025	▾
14	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$213.69M 1,159,033 shares	0.07%	+239.29K(+26.00%)Added	SEC filing ↗ Oct 29, 2025	▾
15	Bank of New York Mellon Corp CIK 1390777 · View history	$210.62M 1,142,392 shares	0.04%	-171.82K(-13.10%)Reduced	SEC filing ↗ Nov 3, 2025	▾
16	VAN ECK ASSOCIATES CORP CIK 869178 · View history	$201.89M 1,095,020 shares	0.19%	+314.23K(+40.20%)Added	SEC filing ↗ Nov 13, 2025	▾
17	FMR LLC CIK 315066 · View history	$181.61M 985,047 shares	0.01%	-324.87K(-24.80%)Reduced	SEC filing ↗ Nov 13, 2025	▾
18	BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history	$178.23M 966,713 shares	0.01%	+22.70K(+2.40%)Added	SEC filing ↗ Feb 3, 2026	▾
19	Clearbridge Investments, LLC CIK 1348883 · View history	$168.32M 912,965 shares	0.13%	-15.17K(-1.60%)Reduced	SEC filing ↗ Nov 13, 2025	▾
20	MORGAN STANLEY CIK 895421 · Amended · View history	$167.76M 909,919 shares	0.01%	-99.23K(-9.80%)Reduced	SEC filing ↗ May 27, 2026	▾

Showing 20 / 704 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

704

Cancelled or null records excluded

Disclosed shares

85,580,072

Not deduplicated across managers

Disclosed value

$15.78B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

BWX Technologies, Inc. · Q3 2025

Explore all 704 reporting institutions.

This page includes 20 of 704 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.