ENPRO INC NPO
COM · Common Stock · CUSIP 29355X107
American industrial technology company
- IndustryGaskets, Packg & Sealg Devices & Rubber & Plastics Hose
- HeadquartersCharlotte, NC
- Founded2002
- Websiteenproindustries.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($32.9m this quarter). Holder counts are more reliable. Shares outstanding: 21.1m as of 2026-04-24, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $250.04. Options: 5 managers hold calls ($17.5m notional), 5 hold puts ($25.5m).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 212 |
| Q4 2022 | 231 |
| Q1 2023 | 223 |
| Q2 2023 | 220 |
| Q3 2023 | 229 |
| Q4 2023 | 240 |
| Q1 2024 | 261 |
| Q2 2024 | 255 |
| Q3 2024 | 271 |
| Q4 2024 | 279 |
| Q1 2025 | 298 |
| Q2 2025 | 313 |
| Q3 2025 | 320 |
| Q4 2025 | 331 |
| Q1 2026 | 356 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 105 | 122 |
| Q3 2024 | 123 | 100 |
| Q4 2024 | 124 | 127 |
| Q1 2025 | 136 | 137 |
| Q2 2025 | 158 | 126 |
| Q3 2025 | 144 | 140 |
| Q4 2025 | 125 | 159 |
| Q1 2026 | 170 | 145 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $13.6m | $5.1m | 0.38 |
| Q3 2025 | $18.2m | $7.3m | 0.40 |
| Q4 2025 | $11.2m | $13.1m | 1.17 |
| Q1 2026 | $17.5m | $25.5m | 1.46 |
Biggest buyers
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +96.8k |
| BAMCO INC /NY/ | Added | +92.9k |
| Capital Research Global Investors | New | +85.7k |
| Conestoga Capital Advisors, LLC | New | +80.3k |
| J. Goldman & Co LP | New | +44.5k |
| Ceredex Value Advisors LLC | New | +42.9k |
| JANE STREET GROUP, LLC | Added | +40.3k |
| TWO SIGMA INVESTMENTS, LP | New | +29.7k |
| CONGRUENCE CAPITAL, LLC | Added | +26.3k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +26.0k |
Biggest sellers
| WASATCH ADVISORS LP | Reduced | -194.4k |
| Capital World Investors | Reduced | -191.3k |
| T. Rowe Price Investment Management, Inc. | Reduced | -157.4k |
| FMR LLC | Reduced | -148.3k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -137.2k |
| BROWN ADVISORY INC | Reduced | -113.6k |
| NEUBERGER BERMAN GROUP LLC | Reduced | -56.2k |
| ALLIANCEBERNSTEIN L.P. | Reduced | -48.5k |
| Capital International Investors | Reduced | -42.0k |
| Invesco Ltd. | Reduced | -37.5k |
Biggest calls
| SCOPUS ASSET MANAGEMENT, L.P. | Unchanged | $10.0m40.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.2m16.9k shares |
| JANE STREET GROUP, LLC | Added | $1.5m6.1k shares |
| CITADEL ADVISORS LLC | New | $1.3m5.3k shares |
| IMC-Chicago, LLC | New | $376.0k1.5k shares |
Biggest puts
| SCOPUS ASSET MANAGEMENT, L.P. | Added | $15.0m60.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $9.2m36.7k shares |
| CITADEL ADVISORS LLC | Added | $802.1k3.2k shares |
| WOLVERINE ASSET MANAGEMENT LLC | Added | $501.3k2.0k shares |
| Prentice Wealth Management LLC | Unchanged | $4.6k1.1k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-07-17 | 14.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 6.3% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.2% |
Fell to 5% or below in the last year: WASATCH ADVISORS LP (4.3%, 2026-04-22), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 1 | $154.7k | — |
| Q3 2024 | 0 | — | 1 | $232.3k | — |
| Q4 2024 | 0 | — | 1 | $48.8k | — |
| Q1 2025 | 0 | — | 1 | $199.1k | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 1 | $568.6k | — |
| Q4 2025 | 0 | — | 1 | $515.7k | — |
| Q1 2026 | 0 | — | 4 | $2.7m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-03-02 | Bower Steven R. SVP, Controller and CAO | Sold | $134.4k507 shares |
| 2026-02-25 | Humphrey John Director · By GRAT (Grantor Retained Annuity Trust) | Sold | $349.3k1.3k shares |
| 2026-02-24 | McLean Robert Savage EVP, GC, and CAO | Sold | $555.0k2.0k shares |
| 2026-02-23 | Brueck Felix M. Director | Sold | $1.6m5.9k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 3.1m $789.2m | Added +25.8k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.02% of their portfolio | 1.3m $333.3m | First filing |
| FMR LLC 0.02% of their portfolio | 1.1m $286.9m | Reduced -148.3k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 945.0k $236.9m | First filing |
| WASATCH ADVISORS LP 1.51% of their portfolio | 909.9k $228.1m | Reduced -194.4k |
| Invesco Ltd. 0.02% of their portfolio | 848.6k $212.7m | Reduced -37.5k |
| STATE STREET CORP 0.01% of their portfolio | 812.0k $203.5m | Added +24.9k |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 755.7k $189.4m | Reduced -137.2k |
| T. Rowe Price Investment Management, Inc. 0.11% of their portfolio | 641.1k $160.7m | Reduced -157.4k |
| Capital International Investors 0.04% of their portfolio | 604.3k $151.5m | Reduced -42.0k |
| Capital World Investors 0.02% of their portfolio | 564.1k $141.4m | Reduced -191.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 526.5k $132.0m | Reduced -361 |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 447.7k $112.2m | Added +96.8k |
| BROWN ADVISORY INC 0.16% of their portfolio | 399.8k $100.2m | Reduced -113.6k |
| CONGRESS ASSET MANAGEMENT CO 0.72% of their portfolio | 398.4k $99.9m | Added +22.2k |
| BAMCO INC /NY/ 0.30% of their portfolio | 391.7k $98.2m | Added +92.9k |
| ALLIANCEBERNSTEIN L.P. 0.02% of their portfolio | 309.2k $66.2m | Reduced -48.5k |
| GAMCO INVESTORS, INC. ET AL 0.76% of their portfolio | 307.3k $77.0m | Reduced -24.7k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 277.9k $69.7m | Added +13.5k |
| NEUBERGER BERMAN GROUP LLC 0.05% of their portfolio | 277.0k $69.4m | Reduced -56.2k |
| Harvey Partners, LLC 5.16% of their portfolio | 253.5k $63.5m | Added +4.3k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 250.7k $62.8m | Added +7.7k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 248.4k $62.3m | Added +26 |
| ROYCE & ASSOCIATES LP 0.59% of their portfolio | 237.6k $59.6m | Reduced -20.9k |
| MORGAN STANLEY 0.00% of their portfolio | 203.0k $50.9m | Reduced -11.9k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 185.6k $46.5m | Reduced -5.7k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 185.4k $46.5m | Reduced -34.2k |
| JANUS HENDERSON GROUP PLC 0.02% of their portfolio | 175.1k $43.9m | Added +20.2k |
| Trigran Investments, Inc. 10.19% of their portfolio | 170.0k $42.6m | Reduced -9.0k |
| SEGALL BRYANT & HAMILL, LLC 0.58% of their portfolio | 161.3k $40.4m | Reduced -11.0k |
| Nuveen, LLC 0.01% of their portfolio | 156.9k $39.3m | Reduced -14.1k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 137.5k $34.5m | First filing |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 125.2k $31.4m | Reduced -15.8k |
| Tributary Capital Management, LLC 3.04% of their portfolio | 124.8k $31.3m | Reduced -3.6k |
| BESSEMER GROUP INC 0.05% of their portfolio | 124.4k $31.2m | Added +19.2k |
| Leeward Investments, LLC - MA 1.33% of their portfolio | 107.4k $26.9m | Reduced -3.6k |
| SEI INVESTMENTS CO 0.02% of their portfolio | 106.9k $26.8m | Reduced -6.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 102.5k $25.7m | Added +2.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 91.9k $22.1m | Reduced -11.1k |
| Capital Research Global Investors 0.00% of their portfolio | 85.7k $21.5m | New |
| Aberdeen Group plc 0.03% of their portfolio | 85.4k $21.4m | Reduced -10.3k |
| Conestoga Capital Advisors, LLC 0.40% of their portfolio | 80.3k $20.1m | New |
| CONGRUENCE CAPITAL, LLC 6.59% of their portfolio | 78.4k $19.7m | Added +26.3k |
| Public Sector Pension Investment Board 0.06% of their portfolio | 75.4k $18.9m | Added +2.5k |
| First Eagle Investment Management, LLC 0.03% of their portfolio | 69.9k $17.5m | Added +5.5k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 68.3k $17.1m | Added +9.5k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.36% of their portfolio | 68.2k $17.1m | Reduced -1.1k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.01% of their portfolio | 68.1k $16.4m | Reduced -15.9k |
| GABELLI FUNDS LLC 0.11% of their portfolio | 64.4k $16.1m | Reduced -2.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 60.8k $15.2m | Added +1.1k |
| PRUDENTIAL FINANCIAL INC 0.02% of their portfolio | 59.1k $14.8m | Added +2.6k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 58.8k $14.7m | Added +857 |
| OSAIC HOLDINGS, INC. 0.02% of their portfolio | 56.1k $14.1m | Reduced -386 |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 53.3k $13.4m | Added +1.7k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.03% of their portfolio | 50.7k $12.7m | Reduced -4.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio | 50.1k $12.6m | Added +26.0k |
| Thrivent Financial for Lutherans 0.02% of their portfolio | 50.1k $12.6m | Reduced -15.9k |
| SCOPUS ASSET MANAGEMENT, L.P. 0.39% of their portfolio | 50.0k $12.5m | Reduced -8.4k |
| Legal & General Group Plc 0.00% of their portfolio | 49.2k $12.3m | Reduced -5.2k |
| Impax Asset Management Group plc 0.08% of their portfolio | 48.0k $12.0m | Unchanged |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 45.9k $11.5m | Added +40.3k |
| J. Goldman & Co LP 0.52% of their portfolio | 44.5k $11.2m | New |
| Ceredex Value Advisors LLC 0.34% of their portfolio | 42.9k $10.8m | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 41.8k $10.5m | Added +4.7k |
| Swiss National Bank 0.01% of their portfolio | 41.7k $10.5m | Added +200 |
| UBS Group AG 0.00% of their portfolio | 38.6k $9.7m | Reduced -28.9k |
| Bahl & Gaynor LLC 0.05% of their portfolio | 37.8k $9.5m | Added +709 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.07% of their portfolio | 37.0k $9.3m | Reduced -4.1k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.10% of their portfolio | 35.3k $8.9m | Reduced -7.2k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 35.1k $8.8m | Reduced -14.5k |
| EULAV Asset Management 0.25% of their portfolio | 31.6k $7.9m | Added +18.4k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 30.8k $7.7m | Reduced -304 |
| Emerald Investment Advisers, LLC 0.68% of their portfolio | 30.3k $7.6m | First filing |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.28% of their portfolio | 29.8k $7.5m | Added +11.2k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 29.7k $7.4m | New |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 28.7k $7.2m | Reduced -1.4k |
| ProShare Advisors LLC 0.01% of their portfolio | 28.4k $7.1m | Reduced -1.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 25.7k $6.4m | Added +6.0k |
| Phocas Financial Corp. 0.96% of their portfolio | 24.4k $6.1m | Reduced -6.8k |
| AGMAN CAPITAL LLC 4.74% of their portfolio | 23.7k $6.0m | Reduced -3.6k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 20.4k $5.1m | Added +2.2k |
| GREAT LAKES ADVISORS, LLC 0.04% of their portfolio | 18.4k $4.6m | Reduced -2.0k |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 17.4k $4.4m | Reduced -842 |
| B. Metzler seel. Sohn & Co. AG 0.04% of their portfolio | 17.4k $4.4m | Reduced -2.5k |
| Blackstone Inc. 0.02% of their portfolio | 17.3k $4.3m | Not comparable |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 16.2k $4.1m | Added +3.0k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 16.1k $4.0m | First filing |
| NATIXIS ADVISORS, LLC 0.01% of their portfolio | 15.7k $3.9m | Added +422 |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 15.1k $3.8m | Added +12.2k |
| LPL Financial LLC 0.00% of their portfolio | 14.6k $3.7m | Reduced -4.8k |
| Creative Planning 0.00% of their portfolio | 14.4k $3.6m | Added +3.5k |
| SummitTX Capital, L.P. 0.12% of their portfolio | 14.4k $3.6m | Added +11.1k |
| FIRST NATIONAL BANK OF OMAHA 0.11% of their portfolio | 14.4k $3.6m | Reduced -245 |
| FIFTH THIRD BANCORP 0.01% of their portfolio | 13.6k $3.4m | Added +13.5k |
| OPPENHEIMER ASSET MANAGEMENT INC. 0.04% of their portfolio | 13.2k $3.3m | Reduced -2.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 13.2k $3.3m | Reduced -1.5k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 12.8k $3.2m | Added +10.0k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 12.7k $3.2m | Added +62 |
| TD Asset Management Inc 0.00% of their portfolio | 12.5k $3.1m | Reduced -1.6k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 12.1k $3.0m | Reduced -138 |