BWXT US Equity

BWX Technologies, Inc.

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Industrials · Engines & Turbines · CIK 1486957 · FYE 1231

$169.67

-6.86 (-3.89%)

USD · as of 2026-07-28 · marketstack

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Institutional ownership· 13F filers holding BWXT · 2026-Q1 methodology → sources →

819 holders

% of shares outstanding held

92.9%

Shares held (13F)

85,093,310

Reporting holders

819

Top holders

largest 100 of 819 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	BlackRock, Inc.	12,487,50612.5M	$2.6B	13.63%	ADD 2%
2	VANGUARD PORTFOLIO MANAGEMENT LLC	4,891,2374.9M	$1.0B	5.34%	NEW†
3	VANGUARD CAPITAL MANAGEMENT LLC	4,094,0934.1M	$837M	4.47%	NEW†
4	STATE STREET CORP	3,748,9503.7M	$767M	4.09%	ADD 4%
5	Invesco Ltd.	2,522,5322.5M	$516M	2.75%	—
6	JPMORGAN CHASE & CO	2,572,8112.6M	$493M	2.81%	ADD 27%
7	FRANKLIN RESOURCES INC	1,901,3161.9M	$389M	2.08%	TRIM -16%
8	GEODE CAPITAL MANAGEMENT, LLC	1,793,5661.8M	$367M	1.96%	TRIM -3%
9	ALKEON CAPITAL MANAGEMENT LLC	1,739,3481.7M	$356M	1.90%	ADD 10%
10	VAN ECK ASSOCIATES CORP	1,584,4601.6M	$324M	1.73%	ADD 27%
11	BLAIR WILLIAM & CO/IL	1,438,1251.4M	$294M	1.57%	—
12	FIRST TRUST ADVISORS LP	1,391,0791.4M	$284M	1.52%	ADD 12%
13	T. Rowe Price Investment Management, Inc.	1,327,3091.3M	$271M	1.45%	TRIM -58%
14	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	1,288,0281.3M	$263M	1.41%	ADD 46%
15	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	1,286,2571.3M	$263M	1.40%	TRIM -7%
16	Bank of New York Mellon Corp	1,283,9971.3M	$263M	1.40%	ADD 8%
17	SNYDER CAPITAL MANAGEMENT L P	1,102,1161.1M	$225M	1.20%	TRIM -17%
18	Artisan Partners Limited Partnership	1,059,2091.1M	$217M	1.16%	TRIM -3%
19	BANK OF AMERICA CORP /DE/	1,005,6211.0M	$206M	1.10%	ADD 5%
20	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	981,782981,782	$201M	1.07%	TRIM -11%
21	MORGAN STANLEY	977,834977,834	$200M	1.07%	—
22	Clearbridge Investments, LLC	827,836827,836	$169M	0.90%	TRIM -5%
23	FMR LLC	820,494820,494	$168M	0.90%	TRIM -6%
24	Mawer Investment Management Ltd.	734,162734,162	$150M	0.80%	TRIM -5%
25	Fiera Capital Corp	729,269729,269	$149M	0.80%	—
26	Select Equity Group, L.P.	726,424726,424	$149M	0.79%	ADD 69%
27	NORTHERN TRUST CORP	722,135722,135	$148M	0.79%	ADD 4%
28	DIMENSIONAL FUND ADVISORS LP	696,488696,488	$142M	0.76%	TRIM -11%
29	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	689,367689,367	$141M	0.75%	ADD 3%
30	BESSEMER GROUP INC	626,109626,109	$128M	0.68%	—
31	ARK Investment Management LLC	622,546622,546	$127M	0.68%	TRIM -7%
32	PRICE T ROWE ASSOCIATES INC /MD/	612,117612,117	$125M	0.67%	ADD 2%
33	VANGUARD FIDUCIARY TRUST CO	570,316570,316	$117M	0.62%	NEW
34	Capital World Investors	569,415569,415	$116M	0.62%	NEW
35	Stephens Investment Management Group LLC	558,626558,626	$114M	0.61%	—
36	TWO SIGMA INVESTMENTS, LP	551,772551,772	$113M	0.60%	ADD 37%
37	FEDERATED HERMES, INC.	540,528540,528	$111M	0.59%	ADD 19%
38	RAYMOND JAMES FINANCIAL INC	533,591533,591	$109M	0.58%	—
39	Chevy Chase Trust Holdings, LLC	532,146532,146	$109M	0.58%	ADD 3%
40	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	491,360491,360	$100M	0.54%	TRIM -13%
41	ALLIANCEBERNSTEIN L.P.	580,229580,229	$100M	0.63%	ADD 3%
42	Thrivent Financial for Lutherans	476,988476,988	$98M	0.52%	TRIM -26%
43	ROYAL BANK OF CANADA	436,073436,073	$89M	0.48%	TRIM -13%
44	BARROW HANLEY MEWHINNEY & STRAUSS LLC	426,072426,072	$87M	0.47%	TRIM -2%
45	UBS Group AG	402,890402,890	$82M	0.44%	—
46	CITIGROUP INC	398,406398,406	$81M	0.43%	TRIM -3%
47	GOLDMAN SACHS GROUP INC	397,789397,789	$81M	0.43%	ADD 19%
48	FengHe Fund Management Pte. Ltd.	393,200393,200	$80M	0.43%	NEW
49	ZWJ INVESTMENT COUNSEL INC	392,326392,326	$80M	0.43%	TRIM -4%
50	SCHRODER INVESTMENT MANAGEMENT GROUP	380,948380,948	$73M	0.42%	TRIM -3%
51	WELLS FARGO & COMPANY/MN	336,242336,242	$69M	0.37%	ADD 58%
52	PRINCIPAL FINANCIAL GROUP INC	325,952325,952	$67M	0.36%	ADD 17%
53	Orbis Allan Gray Ltd	298,373298,373	$61M	0.33%	TRIM -4%
54	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	297,997297,997	$61M	0.33%	TRIM -22%
55	NEW YORK STATE COMMON RETIREMENT FUND	297,030297,030	$61M	0.32%	—
56	KING LUTHER CAPITAL MANAGEMENT CORP	293,677293,677	$60M	0.32%	ADD 19%
57	STIFEL FINANCIAL CORP	280,260280,260	$57M	0.31%	ADD 18%
58	AMERIPRISE FINANCIAL INC	264,231264,231	$54M	0.29%	ADD 15%
59	Nicholas Investment Partners, LP	261,867261,867	$54M	0.29%	—
60	TREMBLANT CAPITAL GROUP	255,496255,496	$52M	0.28%	TRIM -12%
61	Harvey Partners, LLC	255,300255,300	$52M	0.28%	—
62	SILVERCREST ASSET MANAGEMENT GROUP LLC	251,218251,218	$51M	0.27%	TRIM -5%
63	Capital Research Global Investors	250,845250,845	$51M	0.27%	—
64	Munro Partners	246,220246,220	$50M	0.27%	NEW
65	SAPIENT CAPITAL LLC	230,356230,356	$47M	0.25%	TRIM -18%
66	RHUMBLINE ADVISERS	227,210227,210	$46M	0.25%	ADD 2%
67	VICTORY CAPITAL MANAGEMENT INC	226,541226,541	$46M	0.25%	ADD 3%
68	BNP PARIBAS FINANCIAL MARKETS	202,765202,765	$41M	0.22%	ADD 8%
69	Ensign Peak Advisors, Inc	202,137202,137	$41M	0.22%	TRIM -46%
70	MIZUHO MARKETS AMERICAS LLC	197,659197,659	$40M	0.22%	TRIM -5%
71	Allspring Global Investments Holdings, LLC	187,870187,870	$40M	0.21%	TRIM -7%
72	TORONTO DOMINION BANK	193,205193,205	$40M	0.21%	—
73	LOOMIS SAYLES & CO L P	189,244189,244	$39M	0.21%	TRIM -2%
74	AQR CAPITAL MANAGEMENT LLC	188,967188,967	$39M	0.21%	ADD 221%
75	VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.	182,135182,135	$37M	0.20%	NEW
76	Vident Advisory, LLC	181,547181,547	$37M	0.20%	—
77	Swiss National Bank	180,800180,800	$37M	0.20%	—
78	Gotham Asset Management, LLC	177,546177,546	$36M	0.19%	ADD 5%
79	Nuveen, LLC	176,190176,190	$36M	0.19%	TRIM -20%
80	California Public Employees Retirement System	171,449171,449	$35M	0.19%	—
81	PHILADELPHIA TRUST CO	170,769170,769	$35M	0.19%	—
82	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	166,191166,191	$34M	0.18%	—
83	AMERICAN CENTURY COMPANIES INC	164,942164,942	$34M	0.18%	TRIM -45%
84	SEI INVESTMENTS CO	164,626164,626	$34M	0.18%	TRIM -7%
85	Focus Partners Wealth	164,398164,398	$34M	0.18%	TRIM -3%
86	Minneapolis Portfolio Management Group, LLC	157,516157,516	$32M	0.17%	—
87	Tidal Investments LLC	142,426142,426	$29M	0.16%	ADD 143%
88	Cresset Asset Management, LLC	138,065138,065	$28M	0.15%	TRIM -5%
89	Driehaus Capital Management LLC	137,075137,075	$28M	0.15%	ADD 5%
90	RPG Investment Advisory, LLC	134,062134,062	$27M	0.15%	—
91	DEUTSCHE BANK AG\	131,232131,232	$27M	0.14%	ADD 14%
92	ENVESTNET ASSET MANAGEMENT INC	130,392130,392	$27M	0.14%	ADD 4%
93	CI INVESTMENTS INC.	128,648128,648	$26M	0.14%	NEW
94	Retirement Systems of Alabama	124,164124,164	$25M	0.14%	—
95	Legal & General Group Plc	121,616121,616	$25M	0.13%	TRIM -11%
96	Covea Finance	118,959118,959	$24M	0.13%	TRIM -15%
97	JENNISON ASSOCIATES LLC	118,701118,701	$24M	0.13%	TRIM -56%
98	Ananym Capital Management, LP	118,437118,437	$24M	0.13%	ADD 12%
99	COOKSON PEIRCE & CO INC	117,513117,513	$24M	0.13%	ADD 4%
100	BROWN ADVISORY INC	112,502112,502	$23M	0.12%	TRIM -35%

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

BlackRock, Inc.

9.4M

9.6M

10.3M

12.3M

12.2M

12.5M

$2.6B

VANGUARD PORTFOLIO MANAGEMENT LLC

—

4.9M

$1.0B

VANGUARD CAPITAL MANAGEMENT LLC

—

4.1M

$837M

STATE STREET CORP

3.8M

3.9M

3.6M

3.7M

$767M

Invesco Ltd.

1.1M

666K

1.6M

2.5M

2.6M

2.5M

$516M

JPMORGAN CHASE & CO

291K

317K

254K

680K

2.0M

2.6M

$493M

FRANKLIN RESOURCES INC

2.3M

2.4M

2.2M

2.3M

1.9M

$389M

GEODE CAPITAL MANAGEMENT, LLC

1.7M

1.8M

1.9M

1.8M

$367M

ALKEON CAPITAL MANAGEMENT LLC

—

600K

1.6M

1.7M

$356M

VAN ECK ASSOCIATES CORP

1.4M

563K

781K

1.1M

1.2M

1.6M

$324M

BLAIR WILLIAM & CO/IL

425K

783K

1.0M

1.2M

1.4M

$294M

FIRST TRUST ADVISORS LP

908K

1.2M

955K

1.3M

1.2M

1.4M

$284M

T. Rowe Price Investment Management, Inc.

3.8M

4.5M

4.6M

3.0M

3.1M

1.3M

$271M

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

229K

371K

—

889K

884K

1.3M

$263M

MASSACHUSETTS FINANCIAL SERVICES CO /MA/

—

920K

1.2M

1.4M

1.3M

$263M

Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	819	85,093,310	92.9%	$17.3B
2025-Q4	757	85,686,973	93.5%	$14.8B
2025-Q3	704	86,004,908	93.9%	$15.8B
2025-Q2	651	88,002,135	96.1%

Short interest has its own tab now — open SI →

Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.

Activists & large holders· Schedule 13D/G beneficial owners · BWXT

Large holders — 13G, passive (top 3 by % of class)

Holder	% of class	Type	As of
VANGUARD PORTFOLIO MANAGEMENT LLC	5.35%	QII	2026-03-31	SEC →
VANGUARD CAPITAL MANAGEMENT LLC	5.21%	QII	2026-03-31	SEC →
VANGUARD GROUP INC	0%	QII	2026-03-13	SEC →

Source: SEC Schedule 13D/13G structured XML. 13D = active intent; 13G filers report passively (Rule 13d-1(b) QII / 13d-1(c) Passive / 13d-1(d) Exempt) and are not activists. Percent and delta are the group aggregate the filing reports. Structured 13D/G coverage begins December 2024 (SEC XML mandate).

Institutional ownership· 13F filers holding BWXT · 2026-Q1 methodology → sources →

819 holders

% of shares outstanding held

92.9%

Shares held (13F)

85,093,310

Reporting holders

819

Top holders

largest 100 of 819 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	BlackRock, Inc.	12,487,50612.5M	$2.6B	13.63%	ADD 2%
2	VANGUARD PORTFOLIO MANAGEMENT LLC	4,891,2374.9M	$1.0B	5.34%	NEW†
3	VANGUARD CAPITAL MANAGEMENT LLC	4,094,0934.1M	$837M	4.47%	NEW†
4	STATE STREET CORP	3,748,9503.7M	$767M	4.09%	ADD 4%
5	Invesco Ltd.	2,522,5322.5M	$516M	2.75%	—
6	JPMORGAN CHASE & CO	2,572,8112.6M	$493M	2.81%	ADD 27%
7	FRANKLIN RESOURCES INC	1,901,3161.9M	$389M	2.08%	TRIM -16%
8	GEODE CAPITAL MANAGEMENT, LLC	1,793,5661.8M	$367M	1.96%	TRIM -3%
9	ALKEON CAPITAL MANAGEMENT LLC	1,739,3481.7M	$356M	1.90%	ADD 10%
10	VAN ECK ASSOCIATES CORP	1,584,4601.6M	$324M	1.73%	ADD 27%
11	BLAIR WILLIAM & CO/IL	1,438,1251.4M	$294M	1.57%	—
12	FIRST TRUST ADVISORS LP	1,391,0791.4M	$284M	1.52%	ADD 12%
13	T. Rowe Price Investment Management, Inc.	1,327,3091.3M	$271M	1.45%	TRIM -58%
14	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	1,288,0281.3M	$263M	1.41%	ADD 46%
15	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	1,286,2571.3M	$263M	1.40%	TRIM -7%
16	Bank of New York Mellon Corp	1,283,9971.3M	$263M	1.40%	ADD 8%
17	SNYDER CAPITAL MANAGEMENT L P	1,102,1161.1M	$225M	1.20%	TRIM -17%
18	Artisan Partners Limited Partnership	1,059,2091.1M	$217M	1.16%	TRIM -3%
19	BANK OF AMERICA CORP /DE/	1,005,6211.0M	$206M	1.10%	ADD 5%
20	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	981,782981,782	$201M	1.07%	TRIM -11%
21	MORGAN STANLEY	977,834977,834	$200M	1.07%	—
22	Clearbridge Investments, LLC	827,836827,836	$169M	0.90%	TRIM -5%
23	FMR LLC	820,494820,494	$168M	0.90%	TRIM -6%
24	Mawer Investment Management Ltd.	734,162734,162	$150M	0.80%	TRIM -5%
25	Fiera Capital Corp	729,269729,269	$149M	0.80%	—
26	Select Equity Group, L.P.	726,424726,424	$149M	0.79%	ADD 69%
27	NORTHERN TRUST CORP	722,135722,135	$148M	0.79%	ADD 4%
28	DIMENSIONAL FUND ADVISORS LP	696,488696,488	$142M	0.76%	TRIM -11%
29	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	689,367689,367	$141M	0.75%	ADD 3%
30	BESSEMER GROUP INC	626,109626,109	$128M	0.68%	—
31	ARK Investment Management LLC	622,546622,546	$127M	0.68%	TRIM -7%
32	PRICE T ROWE ASSOCIATES INC /MD/	612,117612,117	$125M	0.67%	ADD 2%
33	VANGUARD FIDUCIARY TRUST CO	570,316570,316	$117M	0.62%	NEW
34	Capital World Investors	569,415569,415	$116M	0.62%	NEW
35	Stephens Investment Management Group LLC	558,626558,626	$114M	0.61%	—
36	TWO SIGMA INVESTMENTS, LP	551,772551,772	$113M	0.60%	ADD 37%
37	FEDERATED HERMES, INC.	540,528540,528	$111M	0.59%	ADD 19%
38	RAYMOND JAMES FINANCIAL INC	533,591533,591	$109M	0.58%	—
39	Chevy Chase Trust Holdings, LLC	532,146532,146	$109M	0.58%	ADD 3%
40	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	491,360491,360	$100M	0.54%	TRIM -13%
41	ALLIANCEBERNSTEIN L.P.	580,229580,229	$100M	0.63%	ADD 3%
42	Thrivent Financial for Lutherans	476,988476,988	$98M	0.52%	TRIM -26%
43	ROYAL BANK OF CANADA	436,073436,073	$89M	0.48%	TRIM -13%
44	BARROW HANLEY MEWHINNEY & STRAUSS LLC	426,072426,072	$87M	0.47%	TRIM -2%
45	UBS Group AG	402,890402,890	$82M	0.44%	—
46	CITIGROUP INC	398,406398,406	$81M	0.43%	TRIM -3%
47	GOLDMAN SACHS GROUP INC	397,789397,789	$81M	0.43%	ADD 19%
48	FengHe Fund Management Pte. Ltd.	393,200393,200	$80M	0.43%	NEW
49	ZWJ INVESTMENT COUNSEL INC	392,326392,326	$80M	0.43%	TRIM -4%
50	SCHRODER INVESTMENT MANAGEMENT GROUP	380,948380,948	$73M	0.42%	TRIM -3%
51	WELLS FARGO & COMPANY/MN	336,242336,242	$69M	0.37%	ADD 58%
52	PRINCIPAL FINANCIAL GROUP INC	325,952325,952	$67M	0.36%	ADD 17%
53	Orbis Allan Gray Ltd	298,373298,373	$61M	0.33%	TRIM -4%
54	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	297,997297,997	$61M	0.33%	TRIM -22%
55	NEW YORK STATE COMMON RETIREMENT FUND	297,030297,030	$61M	0.32%	—
56	KING LUTHER CAPITAL MANAGEMENT CORP	293,677293,677	$60M	0.32%	ADD 19%
57	STIFEL FINANCIAL CORP	280,260280,260	$57M	0.31%	ADD 18%
58	AMERIPRISE FINANCIAL INC	264,231264,231	$54M	0.29%	ADD 15%
59	Nicholas Investment Partners, LP	261,867261,867	$54M	0.29%	—
60	TREMBLANT CAPITAL GROUP	255,496255,496	$52M	0.28%	TRIM -12%
61	Harvey Partners, LLC	255,300255,300	$52M	0.28%	—
62	SILVERCREST ASSET MANAGEMENT GROUP LLC	251,218251,218	$51M	0.27%	TRIM -5%
63	Capital Research Global Investors	250,845250,845	$51M	0.27%	—
64	Munro Partners	246,220246,220	$50M	0.27%	NEW
65	SAPIENT CAPITAL LLC	230,356230,356	$47M	0.25%	TRIM -18%
66	RHUMBLINE ADVISERS	227,210227,210	$46M	0.25%	ADD 2%
67	VICTORY CAPITAL MANAGEMENT INC	226,541226,541	$46M	0.25%	ADD 3%
68	BNP PARIBAS FINANCIAL MARKETS	202,765202,765	$41M	0.22%	ADD 8%
69	Ensign Peak Advisors, Inc	202,137202,137	$41M	0.22%	TRIM -46%
70	MIZUHO MARKETS AMERICAS LLC	197,659197,659	$40M	0.22%	TRIM -5%
71	Allspring Global Investments Holdings, LLC	187,870187,870	$40M	0.21%	TRIM -7%
72	TORONTO DOMINION BANK	193,205193,205	$40M	0.21%	—
73	LOOMIS SAYLES & CO L P	189,244189,244	$39M	0.21%	TRIM -2%
74	AQR CAPITAL MANAGEMENT LLC	188,967188,967	$39M	0.21%	ADD 221%
75	VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.	182,135182,135	$37M	0.20%	NEW
76	Vident Advisory, LLC	181,547181,547	$37M	0.20%	—
77	Swiss National Bank	180,800180,800	$37M	0.20%	—
78	Gotham Asset Management, LLC	177,546177,546	$36M	0.19%	ADD 5%
79	Nuveen, LLC	176,190176,190	$36M	0.19%	TRIM -20%
80	California Public Employees Retirement System	171,449171,449	$35M	0.19%	—
81	PHILADELPHIA TRUST CO	170,769170,769	$35M	0.19%	—
82	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	166,191166,191	$34M	0.18%	—
83	AMERICAN CENTURY COMPANIES INC	164,942164,942	$34M	0.18%	TRIM -45%
84	SEI INVESTMENTS CO	164,626164,626	$34M	0.18%	TRIM -7%
85	Focus Partners Wealth	164,398164,398	$34M	0.18%	TRIM -3%
86	Minneapolis Portfolio Management Group, LLC	157,516157,516	$32M	0.17%	—
87	Tidal Investments LLC	142,426142,426	$29M	0.16%	ADD 143%
88	Cresset Asset Management, LLC	138,065138,065	$28M	0.15%	TRIM -5%
89	Driehaus Capital Management LLC	137,075137,075	$28M	0.15%	ADD 5%
90	RPG Investment Advisory, LLC	134,062134,062	$27M	0.15%	—
91	DEUTSCHE BANK AG\	131,232131,232	$27M	0.14%	ADD 14%
92	ENVESTNET ASSET MANAGEMENT INC	130,392130,392	$27M	0.14%	ADD 4%
93	CI INVESTMENTS INC.	128,648128,648	$26M	0.14%	NEW
94	Retirement Systems of Alabama	124,164124,164	$25M	0.14%	—
95	Legal & General Group Plc	121,616121,616	$25M	0.13%	TRIM -11%
96	Covea Finance	118,959118,959	$24M	0.13%	TRIM -15%
97	JENNISON ASSOCIATES LLC	118,701118,701	$24M	0.13%	TRIM -56%
98	Ananym Capital Management, LP	118,437118,437	$24M	0.13%	ADD 12%
99	COOKSON PEIRCE & CO INC	117,513117,513	$24M	0.13%	ADD 4%
100	BROWN ADVISORY INC	112,502112,502	$23M	0.12%	TRIM -35%

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

BlackRock, Inc.

9.4M

9.6M

10.3M

12.3M

12.2M

12.5M

$2.6B

VANGUARD PORTFOLIO MANAGEMENT LLC

—

4.9M

$1.0B

VANGUARD CAPITAL MANAGEMENT LLC

—

4.1M

$837M

STATE STREET CORP

3.8M

3.9M

3.6M

3.7M

$767M

Invesco Ltd.

1.1M

666K

1.6M

2.5M

2.6M

2.5M

$516M

JPMORGAN CHASE & CO

291K

317K

254K

680K

2.0M

2.6M

$493M

FRANKLIN RESOURCES INC

2.3M

2.4M

2.2M

2.3M

1.9M

$389M

GEODE CAPITAL MANAGEMENT, LLC

1.7M

1.8M

1.9M

1.8M

$367M

ALKEON CAPITAL MANAGEMENT LLC

—

600K

1.6M

1.7M

$356M

VAN ECK ASSOCIATES CORP

1.4M

563K

781K

1.1M

1.2M

1.6M

$324M

BLAIR WILLIAM & CO/IL

425K

783K

1.0M

1.2M

1.4M

$294M

FIRST TRUST ADVISORS LP

908K

1.2M

955K

1.3M

1.2M

1.4M

$284M

T. Rowe Price Investment Management, Inc.

3.8M

4.5M

4.6M

3.0M

3.1M

1.3M

$271M

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

229K

371K

—

889K

884K

1.3M

$263M

MASSACHUSETTS FINANCIAL SERVICES CO /MA/

—

920K

1.2M

1.4M

1.3M

$263M

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	819	85,093,310	92.9%	$17.3B
2025-Q4	757	85,686,973	93.5%	$14.8B
2025-Q3	704	86,004,908	93.9%	$15.8B
2025-Q2	651	88,002,135	96.1%

Short interest has its own tab now — open SI →

Activists & large holders· Schedule 13D/G beneficial owners · BWXT

Large holders — 13G, passive (top 3 by % of class)

Holder	% of class	Type	As of
VANGUARD PORTFOLIO MANAGEMENT LLC	5.35%	QII	2026-03-31	SEC →
VANGUARD CAPITAL MANAGEMENT LLC	5.21%	QII	2026-03-31	SEC →
VANGUARD GROUP INC	0%	QII	2026-03-13	SEC →

BWXT US Equity☆

Institutional ownership· 13F filers holding BWXT · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · BWXT

Institutional ownership· 13F filers holding BWXT · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · BWXT

BWXT US Equity