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 ($40.6m this quarter). Holder counts are more reliable. Shares outstanding: 21.2m as of 2026-07-23, 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 ≈ $375.25. Options: 6 managers hold calls ($50.8m notional), 7 hold puts ($32.4m).
Trends to Q2 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 |
| Q2 2026 | 408 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| 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 |
| Q2 2026 | 205 | 159 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $18.2m | $7.3m | 0.40 |
| Q4 2025 | $11.2m | $13.1m | 1.17 |
| Q1 2026 | $17.5m | $25.5m | 1.46 |
| Q2 2026 | $50.8m | $32.4m | 0.64 |
Biggest buyers
| WESTFIELD CAPITAL MANAGEMENT CO LP | New | +286.6k |
| BlackRock, Inc. | Added | +215.3k |
| FMR LLC | Added | +130.3k |
| First Eagle Investment Management, LLC | Added | +110.4k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | New | +109.5k |
| Invesco Ltd. | Added | +108.6k |
| TWO SIGMA INVESTMENTS, LP | Added | +96.3k |
| GOLDMAN SACHS GROUP INC | Added | +72.7k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Added | +71.1k |
| JANE STREET GROUP, LLC | Added | +62.3k |
Biggest sellers
| WASATCH ADVISORS LP | Reduced | -460.3k |
| NEUBERGER BERMAN GROUP LLC | Reduced | -245.6k |
| BROWN ADVISORY INC | Reduced | -146.9k |
| T. Rowe Price Investment Management, Inc. | Reduced | -95.7k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -93.8k |
| SCOPUS ASSET MANAGEMENT, L.P. | Reduced | -46.9k |
| Harvey Partners, LLC | Reduced | -45.9k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -45.6k |
| Bank of New York Mellon Corp | Reduced | -41.0k |
| ROYAL BANK OF CANADA | Reduced | -39.7k |
Biggest calls
| SCOPUS ASSET MANAGEMENT, L.P. | Added | $24.5m65.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $14.9m39.5k shares |
| IMC-Chicago, LLC | Added | $4.1m10.8k shares |
| JANE STREET GROUP, LLC | Added | $3.3m8.7k shares |
| D. E. Shaw & Co., Inc. | New | $2.3m6.2k shares |
| CITADEL ADVISORS LLC | Reduced | $1.7m4.5k shares |
Biggest puts
| SCOPUS ASSET MANAGEMENT, L.P. | Reduced | $15.1m40.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $6.0m15.8k shares |
| JANE STREET GROUP, LLC | New | $3.1m8.1k shares |
| CITADEL ADVISORS LLC | Added | $2.9m7.7k shares |
| IMC-Chicago, LLC | New | $2.8m7.3k shares |
| GROUP ONE TRADING LLC | New | $2.6m7.0k shares |
| Prentice Wealth Management LLC | Reduced | $14.0k800 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 since 1 Apr 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 |
|---|---|---|---|---|---|
| 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 | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 3.4m $1.3bn | Added +215.3k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.02% of their portfolio | 1.4m $528.1m | Added +71.1k |
| FMR LLC 0.02% of their portfolio | 1.3m $480.5m | Added +130.3k |
| Invesco Ltd. 0.03% of their portfolio | 957.2k $360.8m | Added +108.6k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 950.6k $358.3m | Added +5.6k |
| STATE STREET CORP 0.01% of their portfolio | 853.7k $321.8m | Added +41.7k |
| DIMENSIONAL FUND ADVISORS LP 0.05% of their portfolio | 661.8k $249.5m | Reduced -93.8k |
| Capital World Investors 0.03% of their portfolio | 599.6k $226.0m | Added +35.5k |
| Capital International Investors 0.04% of their portfolio | 574.9k $216.7m | Reduced -29.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 549.4k $207.1m | Added +22.9k |
| T. Rowe Price Investment Management, Inc. 0.13% of their portfolio | 545.3k $205.6m | Reduced -95.7k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 454.6k $171.3m | Added +6.9k |
| WASATCH ADVISORS LP 1.11% of their portfolio | 449.6k $169.5m | Reduced -460.3k |
| CONGRESS ASSET MANAGEMENT CO 1.00% of their portfolio | 433.1k $163.3m | Added +34.7k |
| BAMCO INC /NY/ 0.23% of their portfolio | 399.5k $150.6m | Added +7.8k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 350.6k $132.2m | Added +72.7k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.35% of their portfolio | 286.6k $108.0m | New |
| GAMCO INVESTORS, INC. ET AL 0.95% of their portfolio | 281.7k $106.2m | Reduced -25.6k |
| ALLIANCEBERNSTEIN L.P. 0.02% of their portfolio | 276.7k $69.3m | Reduced -32.5k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 267.2k $100.7m | Added +16.6k |
| BROWN ADVISORY INC 0.15% of their portfolio | 252.9k $95.3m | Reduced -146.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 246.8k $93.0m | Reduced -1.6k |
| MORGAN STANLEY 0.00% of their portfolio | 229.8k $86.6m | Added +26.9k |
| ROYCE & ASSOCIATES LP 0.65% of their portfolio | 213.4k $80.4m | Reduced -24.2k |
| Harvey Partners, LLC 5.43% of their portfolio | 207.6k $78.2m | Reduced -45.9k |
| First Eagle Investment Management, LLC 0.06% of their portfolio | 180.3k $67.9m | Added +110.4k |
| Nuveen, LLC 0.02% of their portfolio | 175.2k $66.0m | Added +18.3k |
| Jupiter Topco LLC 0.03% of their portfolio | 174.2k $65.7m | First filing |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 173.1k $65.2m | Reduced -12.4k |
| SEGALL BRYANT & HAMILL, LLC 0.72% of their portfolio | 161.1k $60.7m | Reduced -240 |
| Trigran Investments, Inc. 10.82% of their portfolio | 156.5k $59.0m | Reduced -13.6k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 151.2k $57.0m | Added +13.7k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 144.6k $54.5m | Reduced -41.0k |
| BESSEMER GROUP INC 0.07% of their portfolio | 140.7k $53.0m | Added +16.2k |
| TWO SIGMA INVESTMENTS, LP 0.04% of their portfolio | 126.0k $47.5m | Added +96.3k |
| Tributary Capital Management, LLC 3.75% of their portfolio | 121.1k $45.7m | Reduced -3.6k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.06% of their portfolio | 109.5k $41.3m | New |
| JANE STREET GROUP, LLC 0.03% of their portfolio | 108.1k $40.8m | Added +62.3k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 107.0k $40.3m | Added +53.6k |
| Leeward Investments, LLC - MA 1.81% of their portfolio | 105.6k $39.8m | Reduced -1.8k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 103.2k $38.9m | Added +756 |
| SEI INVESTMENTS CO 0.03% of their portfolio | 95.5k $36.0m | Reduced -11.3k |
| Capital Research Global Investors 0.00% of their portfolio | 88.0k $33.2m | Added +2.3k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 85.5k $32.2m | Reduced -39.7k |
| Conestoga Capital Advisors, LLC 0.65% of their portfolio | 79.4k $29.9m | Reduced -960 |
| Public Sector Pension Investment Board 0.07% of their portfolio | 72.6k $27.4m | Reduced -2.8k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 69.6k $26.2m | Added +1.3k |
| CONGRUENCE CAPITAL, LLC 6.59% of their portfolio | 66.9k $25.2m | Reduced -11.5k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.44% of their portfolio | 66.3k $25.0m | Reduced -1.9k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 66.1k $25.0m | Reduced -25.8k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.02% of their portfolio | 61.2k $23.1m | Added +60.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 58.9k $22.2m | Reduced -1.9k |
| PRUDENTIAL FINANCIAL INC 0.02% of their portfolio | 58.1k $21.9m | Reduced -966 |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.01% of their portfolio | 55.4k $20.6m | Reduced -12.7k |
| OSAIC HOLDINGS, INC. 0.02% of their portfolio | 55.4k $20.9m | Reduced -714 |
| Aberdeen Group plc 0.03% of their portfolio | 55.0k $20.7m | Reduced -30.5k |
| Impax Asset Management Group plc 0.13% of their portfolio | 53.8k $20.3m | Added +5.8k |
| GABELLI FUNDS LLC 0.13% of their portfolio | 53.8k $20.3m | Reduced -10.6k |
| Thrivent Financial for Lutherans 0.03% of their portfolio | 51.5k $19.4m | Added +1.4k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 51.2k $19.3m | Reduced -7.5k |
| Legal & General Group Plc 0.00% of their portfolio | 48.7k $18.4m | Reduced -539 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 46.5k $17.5m | Added +11.4k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.03% of their portfolio | 44.4k $16.7m | Reduced -6.3k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.30% of their portfolio | 42.6k $16.1m | Added +12.8k |
| Swiss National Bank 0.01% of their portfolio | 41.3k $15.6m | Reduced -360 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.14% of their portfolio | 38.3k $14.4m | Added +3.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 36.5k $13.8m | Reduced -5.2k |
| EULAV Asset Management 0.42% of their portfolio | 34.8k $13.1m | Added +3.2k |
| Bahl & Gaynor LLC 0.06% of their portfolio | 33.8k $12.8m | Reduced -3.9k |
| Ceredex Value Advisors LLC 0.36% of their portfolio | 33.5k $12.6m | Reduced -9.4k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 32.1k $12.1m | Added +11.7k |
| NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio | 31.5k $11.9m | Reduced -245.6k |
| Jump Financial, LLC 0.10% of their portfolio | 30.4k $11.5m | New |
| Emerald Investment Advisers, LLC 0.73% of their portfolio | 29.0k $10.9m | Reduced -1.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 28.2k $10.6m | Added +19.8k |
| Select Equity Group, L.P. 0.06% of their portfolio | 27.9k $10.5m | New |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.07% of their portfolio | 26.4k $10.0m | Reduced -10.6k |
| J. Goldman & Co LP 0.35% of their portfolio | 26.1k $9.8m | Reduced -18.4k |
| UBS Group AG 0.00% of their portfolio | 25.2k $9.5m | Reduced -13.5k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 24.6k $9.3m | Added +11.9k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 24.4k $9.2m | Reduced -4.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 23.7k $9.0m | Reduced -2.0k |
| Phocas Financial Corp. 1.21% of their portfolio | 23.2k $8.8m | Reduced -1.2k |
| ProShare Advisors LLC 0.01% of their portfolio | 23.0k $8.7m | Reduced -5.5k |
| Hillsdale Investment Management Inc. 0.20% of their portfolio | 22.9k $8.6m | New |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 19.8k $7.5m | Added +4.7k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 19.4k $7.3m | Reduced -11.5k |
| Creative Planning 0.00% of their portfolio | 18.3k $6.9m | Added +3.9k |
| AGMAN CAPITAL LLC 4.32% of their portfolio | 18.2k $6.8m | Reduced -5.6k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 18.0k $6.8m | Added +1.9k |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 17.0k $6.4m | Reduced -411 |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 16.6k $6.2m | Added +374 |
| NATIXIS ADVISORS, LLC 0.01% of their portfolio | 15.9k $6.0m | Added +230 |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 14.2k $5.4m | Added +5.5k |
| GREAT LAKES ADVISORS, LLC 0.04% of their portfolio | 14.1k $5.3m | Reduced -4.2k |
| FIFTH THIRD BANCORP 0.01% of their portfolio | 13.8k $5.2m | Added +192 |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 13.6k $5.1m | Added +5.1k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 13.6k $5.1m | Added +5.5k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 13.4k $5.0m | Added +535 |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 12.6k $4.7m | Reduced -599 |