As of the latest Form 4 filed Mar 2, 2026.
What Enpro Industries insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 46 most recent filings for NPO.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-03-02 | 2026-03-02 | Bower Steven R. SVP, Controller and CAO | SSale | −507.00 | $265.15 | $134K | No | Form 4 ↗ |
| 2026-03-02 | 2026-03-02 | Bower Steven R., SVP, Controller and CAO | MExercise | +1.55K | $53.78 | $83.4K | No | Form 4 ↗ |
| 2026-02-25 | 2026-02-25 | Humphrey John Director | SSale | −1.30K | $268.69 | $349K | No | Form 4 ↗ |
| 2026-02-25 | 2026-02-23 | Brueck Felix M. Director | SSale | −4.82K | $275.69 | $1.33M | No | Form 4 ↗ |
| 2026-02-25 | 2026-02-23 | Brueck Felix M., Director | SSale | −1.03K | $276.52 | $285K | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-24 | McLean Robert Savage EVP, GC, and CAO | SSale | −2.00K | $277.50 | $555K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | Vaillancourt Eric A. President and CEO | FTax | −7.48K | $272.63 | $2.04M | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | Vaillancourt Eric A., President and CEO | MExercise | +4.01K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | Vaillancourt Eric A., President and CEO | AAward | +13.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | McLean Robert Savage EVP, GC, and CAO | FTax | −1.29K | $272.63 | $353K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | McLean Robert Savage, EVP, GC, and CAO | MExercise | +774.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | McLean Robert Savage, EVP, GC, and CAO | AAward | +2.59K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | Joiner Larisa R. SVP and CIO | FTax | −473.00 | $272.63 | $129K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | Joiner Larisa R., SVP and CIO | MExercise | +256.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | Joiner Larisa R., SVP and CIO | AAward | +854.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | Bower Steven R. SVP, Controller and CAO | FTax | −365.00 | $272.63 | $99.5K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | Bower Steven R., SVP, Controller and CAO | MExercise | +280.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-16 | Bower Steven R., SVP, Controller and CAO | AAward | +935.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | Vaillancourt Eric A. President and CEO | FTax | −1.32K | $272.63 | $360K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | Vaillancourt Eric A., President and CEO | MExercise | +3.21K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | McLean Robert Savage EVP, GC, and CAO | FTax | −217.00 | $272.63 | $59.2K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | McLean Robert Savage, EVP, GC, and CAO | MExercise | +601.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | Joiner Larisa R. SVP and CIO | FTax | −120.00 | $272.63 | $32.7K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | Joiner Larisa R., SVP and CIO | MExercise | +249.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | Bower Steven R. SVP, Controller and CAO | FTax | −57.00 | $272.63 | $15.5K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | Bower Steven R., SVP, Controller and CAO | MExercise | +217.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | Bruderek Joseph F Jr. EVP and CFO | FTax | −176.00 | $272.63 | $48.0K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-15 | Bruderek Joseph F Jr., EVP and CFO | MExercise | +616.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Bower Steven R. SVP, Controller and CAO | FTax | −50.00 | $271.21 | $13.6K | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Bower Steven R., SVP, Controller and CAO | MExercise | +191.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Joiner Larisa R. SVP and CIO | FTax | −105.00 | $271.21 | $28.5K | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Joiner Larisa R., SVP and CIO | MExercise | +219.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | McLean Robert Savage EVP, GC, and CAO | FTax | −193.00 | $271.21 | $52.3K | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | McLean Robert Savage, EVP, GC, and CAO | MExercise | +534.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Bruderek Joseph F Jr. EVP and CFO | FTax | −211.00 | $271.21 | $57.2K | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Bruderek Joseph F Jr., EVP and CFO | MExercise | +656.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Vaillancourt Eric A. President and CEO | FTax | −1.28K | $271.21 | $346K | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Vaillancourt Eric A., President and CEO | MExercise | +3.11K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-12 | Reinsdorf Judith A Director | AAward | +567.00 | $246.91 | $140K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-12 | Humphrey John Director | AAward | +567.00 | $246.91 | $140K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-12 | HAUSER DAVID L Director | AAward | +184.00 | $246.91 | $45.4K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-12 | Gulfo Adele M. Director | AAward | +567.00 | $246.91 | $140K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-12 | Brueck Felix M. Director | AAward | +567.00 | $246.91 | $140K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-12 | Botts Thomas M. Director | AAward | +567.00 | $246.91 | $140K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-12 | ADEN ALLISON Director | AAward | +567.00 | $246.91 | $140K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-12 | Abbey William Director | AAward | +567.00 | $246.91 | $140K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also NPO’s full analysis or the market-wide insider trading feed. The tabs above jump to NPO’s other SEC data.
Source: SEC Form 4 filings for NPO, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.