John Humphrey insider trades: Enpro (NPO) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where John reports to the SEC
Open-market buys and sales
14 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Feb 25, 2026 | NPO | ↓ Sell | 1,300 | $268.69 | $349K | By GRAT (Grantor Retained Annuity Trust) | Feb 25, 2026 (0d) |
| Aug 6, 2024 | OI | ↑ Buy | 15,000 | $11.30 | $169K | Direct | Aug 8, 2024 (2d) |
| Mar 4, 2021 | NPO | ↑ Buy | 2,500 | $83.36 | $208K | By GRAT (Grantor Retained Annuity Trust) | Mar 4, 2021 (0d) |
| Aug 12, 2016 | ROP | ↓ Sell | 40,000 | $172.70 | $6.9M | Direct | Aug 12, 2016 (0d) |
| May 9, 2016 | NPO | ↑ Buy | 2,000 | $46.50 | $93K | Direct | May 10, 2016 (1d) |
| Mar 1, 2016 | ROP | ↓ Sell | 17,415 | $171.60 | $3.0M | Direct | Mar 2, 2016 (1d) |
| May 12, 2015 | ROP | ↓ Sell | 25,314 | $172.38 | $4.4M | Direct | May 13, 2015 (1d) |
| May 28, 2014 | ROP | ↓ Sell | 58,084 | $142.22 | $8.3M | Direct | May 29, 2014 (1d) |
| Dec 10, 2013 | ROP | ↓ Sell | 35,155 | $129.63 | $4.6M | Direct | Dec 12, 2013 (2d) |
| Nov 20, 2012 | ROP | ↓ Sell | 40,000 | $112.79 | $4.5M | Direct | Nov 20, 2012 (0d) |
| Sep 18, 2012 | ROP | ↓ Sell | 6,800 | $105.20 | $715K | Direct | Sep 18, 2012 (0d) |
| Sep 14, 2012 | ROP | ↓ Sell | 53,200 | $105.35 | $5.6M | Direct | Sep 17, 2012 (3d) |
| Apr 26, 2012 | ROP | ↓ Sell | 25,000 | $101.20 | $2.5M | Direct | Apr 27, 2012 (1d) |
| Jan 9, 2012 | ROP | ↓ Sell | 53,943 | $90.08 | $4.9M | Direct | Jan 10, 2012 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other NPO insiders
Open-market trades in the last 12 months
About John Humphrey's insider trades
John Humphrey is a director at Enpro (NPO). Since Jan 9, 2012, John has reported 3 open-market purchases worth $471K and 11 sales worth $45.6M on SEC Form 4. In the last 12 months: 1 sale ($349K).
Their filings also include grants and awards (109 filings), shares withheld for taxes (18 filings), option exercises (15 filings), gifts (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every NPO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.