Who owns BWX Technologies (BWXT)?
152 holders named in SEC filings declare between 62.7% and 87.0% of BWX Technologies' shares outstanding, as of Aug 12, 2026. The largest are BlackRock (13.2%), Vanguard (10.4%) and State Street (4.1%); the five largest hold 33.0% together. Another 697 institutions hold small positions worth 5.6%. At least 7.4% of the shares appear in no ownership filing: investors who do not have to report, mostly individuals. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 6.8% and sold 6.6% of the shares, a net purchase of 0.25%; 106 opened a position, 308 added, 269 reduced and 82 sold out. Biggest buyers: Select Equity Group, L.P. (+977,584 shares) and FIRST TRUST ADVISORS LP (+684,471 shares). Biggest sellers: Invesco (-687,204) and ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (-491,360). Over time, 837 managers declared BWX Technologies in their 13F for Q2 2026, against 275 for Q4 2019: together at most 92.3% of the shares outstanding, against 103.1%.
| Holder | Filing | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|
| BlackRock | 13F | 13.2% | Jun 30, 2026 | Q4 2019 or earlier |
| Vanguard | 13F | 10.4% | Jun 30, 2026 | Q4 2019 or earlier |
| State Street | 13F | 4.1% | Jun 30, 2026 | Q4 2019 or earlier |
| JPMorgan | 13F | 2.9% | Jun 30, 2026 | Q4 2019 or earlier |
| FIRST TRUST ADVISORS LP | 13F | 2.3% | Jun 30, 2026 | Q4 2019 or earlier |
| T. Rowe Price | 13F | 2.2% | Jun 30, 2026 | Q4 2019 or earlier |
| ALKEON CAPITAL MANAGEMENT LLC | 13F | 2.2% | Jun 30, 2026 | Q2 2025 |
| Franklin Templeton | 13F | 2.1% | Jun 30, 2026 | Q4 2019 or earlier |
| Geode Capital | 13F | 2.0% | Jun 30, 2026 | Q4 2019 or earlier |
| Invesco | 13F | 2.0% | Jun 30, 2026 | Q4 2019 or earlier |
| Select Equity Group, L.P. | 13F | 1.9% | Jun 30, 2026 | Q2 2025 |
| VanEck | 13F | 1.7% | Jun 30, 2026 | Q4 2019 or earlier |
| BLAIR WILLIAM & CO/IL | 13F | 1.7% | Jun 30, 2026 | Q4 2019 or earlier |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 13F | 1.4% | Jun 30, 2026 | Q2 2025 |
| SNYDER CAPITAL MANAGEMENT L P | 13F | 1.4% | Jun 30, 2026 | Q4 2019 or earlier |
| BNY | 13F | 1.2% | Jun 30, 2026 | Q4 2019 or earlier |
| Mirae Asset | 13F | 1.2% | Jun 30, 2026 | Q3 2025 |
| Artisan Partners Limited Partnership | 13F | 1.2% | Jun 30, 2026 | Q2 2025 |
| Bank of America | 13F | 1.1% | Jun 30, 2026 | Q4 2019 or earlier |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 13F | 1.0% | Jun 30, 2026 | Q4 2019 or earlier |
| Capital Group | 13F | 0.98% | Jun 30, 2026 | Q4 2019 or earlier |
| Morgan Stanley | 13F | 0.87% | Jun 30, 2026 | Q4 2019 or earlier |
| Fidelity (FMR) | 13F | 0.83% | Jun 30, 2026 | Q4 2019 or earlier |
| Clearbridge Investments, LLC | 13F | 0.82% | Jun 30, 2026 | Q2 2022 |
| Northern Trust | 13F | 0.82% | Jun 30, 2026 | Q4 2019 or earlier |
BWX Technologies institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 275 | 103.1% | $6.1B | 74.0% |
| Q4 2020 | 267 | 96.7% | $5.6B | 75.4% |
| Q4 2021 | 266 | 96.1% | $4.2B | 75.9% |
| Q4 2022 | 339 | 97.3% | $5.2B | 72.1% |
| Q4 2023 | 419 | 94.2% | $6.6B | 63.3% |
| Q4 2024 | 584 | 91.6% | $9.3B | 57.0% |
| Q4 2025 | 750 | 92.3% | $14.6B | 50.7% |
| Q2 2026 | 837 | 92.3% | $16.5B | 48.9% |
From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.