NPO — ENPRO INC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying NPO?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 1 tracked investors who changed their NPO position last quarter, 0 bought and 1 sold (0% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 56/100 in a Overheat regime).
- +1 tracked investors reported holding NPO at their latest filing
- +Macro Health is 56/100 in a Overheat regime — historically acceptable for this sectorsource
- −1 tracked investor reduced or exited last quarter (0 reduced, 1 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/18/2026.
About ENPRO INC (NPO)
ENPRO INC (NPO) appears in the most recent 13F filings of 1 tracked institutional investor. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $10M. Across recent filings, tracked investors recorded 4 new positions, 1 increased, 1 reduced, and 3 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in NPO
How many top investors track NPO
Only 1 tracked investor report this position.
NPO Ownership Composition
How ENPRO INC is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant100.0%
Tracked investors currently reporting NPO
3 tracked investors have since exited this position — listed separately below.
- Ken GriffinJun 30, 2026Citadel AdvisorsShares25.8KValue$9.7M% Portfolio0.00%
Previously held NPO
These investors reported NPO in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Paul Tudor Jones | Tudor Investment Corp | 15.3K | $3.3M | Dec 31, 2025 |
| Izzy Englander | Millennium Management | 7.9K | $2M | Mar 31, 2026 |
| Ray Dalio | Bridgewater Associates | 1.7K | $415.8K | Mar 31, 2026 |
Recent activity
- New$1.4KFeb 17, 2026
- New$415.8KMay 15, 2026
- Sold$0(-100.00%)Aug 14, 2026
- $309.8KNov 14, 2024
- Sold$0(-100.00%)Feb 14, 2025
- $1.1MMay 15, 2025
- Reduced$445.4K(-67.10%)Aug 14, 2025
- Increased$5.6M(972.99%)Dec 9, 2025
- Sold$0(-100.00%)May 15, 2026
Frequently asked questions
- How many institutional investors hold NPO?
- 1 tracked institutional investor disclosed a position in NPO (ENPRO INC) in their most recent 13F filing.
- Who is the largest institutional holder of NPO?
- Ken Griffin, Citadel Advisors, holds the largest disclosed position in NPO, valued at $10M.
- Did institutional ownership of NPO increase or decrease?
- Across recent 13F filings, tracked investors recorded 4 new positions, 1 increased, 1 reduced, and 3 fully exited NPO.
- Where does this NPO ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.