SEC Form 4 · Updated Daily
NPO
— Enpro Inc. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| STEEL PARTNERS II GP LLC | 10%+ Owner | 2,301,407 | 2008-05-29 | S |
| STEEL PARTNERS II LP | 10%+ Owner | 2,301,407 | 2008-05-29 | S |
| LICHTENSTEIN WARREN G | 10%+ Owner | 2,301,407 | 2008-05-29 | S |
| Steel Partners LLC | 10%+ Owner | 2,301,407 | 2008-05-29 | S |
| Steel Partners II Master Fund L.P. | 10%+ Owner | 2,301,407 | 2008-05-29 | S |
| Macadam Stephen E. | Director | 241,968 | 2020-02-13 | M |
| SCHAUB ERNEST F | Director · Officer | 203,172 | 2008-04-02 | M |
| DRIES WILLIAM | Director | 92,767 | 2011-02-11 | F |
| MAGEE RICHARD L | Officer | 71,705 | 2013-12-19 | G |
| Vaillancourt Eric A. | Director | 58,755 | 2026-02-16 | M |
| Childress John M II | Officer | 38,694 | 2024-02-27 | M |
| Cox Jon A. | Officer | 38,159 | 2016-02-23 | A |
| HOLLAND WILLIAM R | Director | 35,000 | 2009-11-11 | S |
| McLean Robert Savage | Officer | 29,909 | 2026-02-24 | S |
| Gioffredi Anthony R. | Officer | 28,551 | 2013-04-29 | M |
| Riley Marvin | Director · Officer | 27,555 | 2021-05-01 | M |
| Walker Kenneth D | Officer | 24,067 | 2016-10-02 | D |
| Hudon Gilles | Officer | 15,363 | 2017-02-05 | M |
| POMEROY DONALD | Officer | 11,592 | 2012-04-29 | M |
| REHLEY ROBERT D | Officer | 10,526 | 2010-11-15 | S |
| Pease Alexander W | Officer | 10,512 | 2015-02-18 | A |
| Joiner Larisa R. | Officer | 9,904 | 2026-02-16 | M |
| Botts Thomas M. | Director | 9,707 | 2026-02-12 | A |
| McKinney Robert P. | Officer | 9,350 | 2013-04-29 | M |
| O'Neal William C. | Officer | 9,261 | 2022-07-27 | — |
| Anderson Todd L | Officer | 9,000 | 2017-08-09 | S |
| Sweeney Susan E | Officer | 8,994 | 2022-01-15 | M |
| Rickers Jon D. | Officer | 6,956.11 | 2019-02-23 | M |
| Brueck Felix M. | Director | 6,389 | 2026-02-23 | S |
| Burns B. Bernard Jr. | Director | 6,329 | 2023-02-16 | A |
| Bower Steven R. | Officer | 5,202 | 2026-03-02 | M |
| Gulfo Adele M. | Director | 4,860 | 2026-02-12 | A |
| Byrne Wayne | Officer | 4,693 | 2007-02-13 | A |
| BROWNING PETER C | Director | 4,338 | 2014-03-07 | S |
| Burnett David S. | Officer | 4,273 | 2016-02-23 | A |
| Reinsdorf Judith A | Director | 4,038 | 2026-02-12 | A |
| HAUSER DAVID L | Director | 3,909.09 | 2026-02-12 | A |
| Favenesi William A. | Officer | 3,866 | 2017-02-05 | M |
| CREEL DIANE C | Director | 3,777 | 2023-02-16 | A |
| Marushak Cynthia A | Officer | 3,762 | 2014-02-10 | M |
| Abbey William | Director | 3,359 | 2026-02-12 | A |
| Humphrey John | Director | 3,200 | 2026-02-25 | S |
| HARNETT GORDON D | Director | 3,060 | 2016-05-10 | P |
| Herold Dale A | Reporting Owner | 1,949 | 2012-04-24 | — |
| Bruderek Joseph F Jr. | Officer | 1,472 | 2026-02-15 | M |
| ADEN ALLISON | Officer | 1,379 | 2026-02-12 | A |
| Angelillo Ron | Officer | 1,235 | 2023-02-18 | M |
| Fold David K. | Officer | 616 | 2015-02-06 | F |
| Bianchi Amy | Officer | 524 | 2026-09-15 | M |
| Myers Jan A. | Officer | 430 | 2019-02-12 | A |
| DEFOSSET DON | Director | 0 | 2008-01-30 | — |
| Bloomquist DeLyle W | Director · Officer | 0 | 2008-01-30 | — |
| van der Graaf Kees | Director | 0 | 2024-02-29 | S |
| QUICKE JOHN J | Director | 0 | 2008-01-30 | — |
| HENDERSON JAMES R | Director | 0 | 2008-01-30 | — |
| KING KEVIN C | Reporting Owner | 0 | 2008-01-30 | — |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-30 | Abbey William | Grant / award (derivative) | 81.63 | $306.26 | 1,681.468 |
| 2026-09-30 | Botts Thomas M. | Grant / award (derivative) | 81.63 | $306.26 | 18,153.286 |
| 2026-09-30 | Reinsdorf Judith A | Grant / award (derivative) | 91.426 | $306.26 | 1,276.327 |
| 2026-09-16 | Abbey William | Grant / award (derivative) | 1.781 | $287.16 | 1,599.838 |
| 2026-09-16 | Brueck Felix M. | Grant / award (derivative) | 11.224 | $287.16 | 22,076.024 |
| 2026-09-16 | Brueck Felix M. | Grant / award (derivative) | 13 | $287.16 | 22,064.8 |
| 2026-09-16 | Botts Thomas M. | Grant / award (derivative) | 3.319 | $287.16 | 18,071.656 |
| 2026-09-16 | Botts Thomas M. | Grant / award (derivative) | 17 | $287.16 | 18,068.337 |
| 2026-09-16 | Gulfo Adele M. | Grant / award (derivative) | 0.574 | $287.16 | 5,282.351 |
| 2026-09-16 | Gulfo Adele M. | Grant / award (derivative) | 5 | $287.16 | 5,281.777 |
| 2026-09-16 | Reinsdorf Judith A | Grant / award (derivative) | 0.838 | $287.16 | 1,184.901 |
| 2026-09-16 | Humphrey John | Grant / award (derivative) | 10 | $287.16 | 17,891.638 |
| 2026-09-16 | Humphrey John | Grant / award (derivative) | 12.626 | $287.16 | 17,881.638 |
| 2026-09-15 | Bianchi Amy | Option exercise (derivative) | 524 | $0.00 | 1,051 |
| 2026-09-15 | Bianchi Amy | Tax withholding | 189 | $283.94 | 335 |
| 2026-09-15 | Bianchi Amy | Option exercise | 524 | $0.00 | 524 |
| 2026-06-30 | Abbey William | Grant / award (derivative) | 66.325 | $376.93 | 1,598.057 |
| 2026-06-30 | Botts Thomas M. | Grant / award (derivative) | 57.448 | $376.93 | 18,051.337 |
| 2026-06-30 | Reinsdorf Judith A | Grant / award (derivative) | 74 | $376.93 | 1,184.063 |
| 2026-06-17 | Abbey William | Grant / award (derivative) | 1.347 | $363.62 | 1,531.732 |
| 2026-06-17 | Brueck Felix M. | Grant / award (derivative) | 8.856 | $363.62 | 22,051.8 |
| 2026-06-17 | Brueck Felix M. | Grant / award (derivative) | 11 | $363.62 | 22,042.943 |
| 2026-06-17 | Botts Thomas M. | Grant / award (derivative) | 2.619 | $363.62 | 17,993.89 |
| 2026-06-17 | Botts Thomas M. | Grant / award (derivative) | 13 | $363.62 | 17,991.271 |
| 2026-06-17 | Humphrey John | Grant / award (derivative) | 8 | $363.62 | 17,869.012 |
| 2026-06-17 | Humphrey John | Grant / award (derivative) | 11.102 | $363.62 | 17,861.012 |
| 2026-06-17 | Gulfo Adele M. | Grant / award (derivative) | 0.453 | $363.62 | 5,276.777 |
| 2026-06-17 | Gulfo Adele M. | Grant / award (derivative) | 4 | $363.62 | 5,276.325 |
| 2026-06-17 | Reinsdorf Judith A | Grant / award (derivative) | 0.596 | $363.62 | 1,110.063 |
| 2026-03-31 | Abbey William | Grant / award (derivative) | 99.741 | $250.65 | 1,530.385 |
| 2026-03-31 | Reinsdorf Judith A | Grant / award (derivative) | 111.71 | $250.65 | 1,109.467 |
| 2026-03-31 | Botts Thomas M. | Grant / award (derivative) | 57.85 | $250.65 | 17,978.271 |
| 2026-03-31 | Keating Ronald C | Grant / award (derivative) | 99.741 | $250.65 | 4,289.246 |
| 2026-03-18 | Botts Thomas M. | Grant / award (derivative) | 3.795 | $250.59 | 17,920.421 |
| 2026-03-18 | Botts Thomas M. | Grant / award (derivative) | 19 | $250.59 | 17,916.627 |
| 2026-03-18 | Abbey William | Grant / award (derivative) | 1.825 | $250.59 | 1,430.645 |
| 2026-03-18 | Brueck Felix M. | Grant / award (derivative) | 12.835 | $250.59 | 22,031.943 |
| 2026-03-18 | Brueck Felix M. | Grant / award (derivative) | 15 | $250.59 | 22,019.108 |
| 2026-03-18 | Gulfo Adele M. | Grant / award (derivative) | 0.656 | $250.59 | 5,272.325 |
| 2026-03-18 | Gulfo Adele M. | Grant / award (derivative) | 5 | $250.59 | 5,271.669 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.