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Of the 14 tracked institutions holding BWXT, 9 have a 3-year clone track record — 8 of them beat the S&P. Average holder's clone alpha: +5.3pt. It's a gauge of who owns the name, not just how many.
Among the 14 tracked institutional investors we monitor, BWXT (BWX TECHNOLOGIES INC) is held with a combined value of $5.46B across 28,117,280 shares. The largest holder is BlackRock, Inc. with a position worth $2.55B (0.04% of their portfolio). RENAISSANCE TECHNOLOGIES LLC opened a new position in the most recent quarter. 6 funds increased their holdings. 6 funds reduced their position.
Total Institutional Value
$5.46B
Total Shares Held
28,117,280
Institutional Holders
14
% of Shares Outstanding
30.7%
of 91.61M shares · SEC 2026-04-30
Days to Cover
3.6+2.3%
3.00M shares short · FINRA 2026-07-15
Tracked 13F institutions hold 30.7% of BWXT's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-04-30), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $2.55B | 0.04% | +2.0% |
| 2 | VANGUARD GROUP INC | $1.56B | 0.02% | -1.8% |
| 3 | STATE STREET CORP | $766.62M | 0.03% | +4.2% |
| 4 | FMR LLC | $167.78M | 0.01% | -5.8% |
| 5 | ARK Investment Management LLC | $127.30M | 0.99% | -6.7% |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $125.17M | 0.01% | +2.3% |
| 7 | Capital Research Global Investors | $51.30M | 0.01% | - |
| 8 | AQR CAPITAL MANAGEMENT LLC | $38.64M | 0.02% | +220.9% |
| 9 | Gotham Asset Management, LLC | $36.31M | 0.11% | +5.5% |
| 10 | MILLENNIUM MANAGEMENT LLC | $17.70M | 0.01% | -44.5% |
| Member | Type | Date |
|---|---|---|
| April McClain Delaney | Buy | May 15, 2026 |
| April McClain Delaney | Buy | May 14, 2026 |
| April McClain Delaney | Buy | May 8, 2026 |
| April McClain Delaney | Buy |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of BWXT with a position worth $2.55B, representing 0.04% of their portfolio. In total, 14 institutional investors hold BWXT with a combined value of $5.46B.
In the most recent quarter, 1 fund opened a new position in BWXT. Additionally, 6 increased their holdings and 6 reduced their positions.
Institutional investors hold $5.46B worth of BWXT stock across 14 positions. The largest institutional holder is BlackRock, Inc. with $2.55B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For BWXT, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their BWXT positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| May 7, 2026 |
| Lisa McClain | Sell | Oct 31, 2025 |
| Lisa McClain | Buy | Oct 30, 2025 |
| Lisa McClain | Sell | Oct 30, 2025 |
| Lisa McClain | Buy | Jun 11, 2025 |
Showing 8 of 43. STOCK Act disclosures lag up to 45 days.
Last Close
$174.52
2026-07-24
YTD
-4.0%
35% of 52-week range
