NPK — Institutional owners (13F)
Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.
| Institution | Value | Shares | % of tracked 13F | Type |
|---|---|---|---|---|
| BlackRock, Inc. | $122,205,723 | 977,724 | 20.95% | Shares |
| STATE STREET CORP | $58,260,839 | 466,124 | 9.99% | Shares |
| VANGUARD GROUP INC | $39,560,025 | 370,551 | 6.78% | Shares |
| DIMENSIONAL FUND ADVISORS LP | $39,471,092 | 315,794 | 6.77% | Shares |
| VANGUARD CAPITAL MANAGEMENT LLC | $28,109,376 | 224,893 | 4.82% | Shares |
| Medina Value Partners, LLC | $21,695,514 | 173,578 | 3.72% | Shares |
| ADVISORY RESEARCH INC | $20,218,882 | 161,764 | 3.47% | Shares |
| GEODE CAPITAL MANAGEMENT, LLC | $18,858,211 | 150,851 | 3.23% | Shares |
| RENAISSANCE TECHNOLOGIES LLC | $15,473,762 | 123,800 | 2.65% | Shares |
| J. Goldman & Co LP | $15,396,518 | 123,182 | 2.64% | Shares |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $13,077,954 | 104,632 | 2.24% | Shares |
| GAMCO INVESTORS, INC. ET AL | $10,952,904 | 87,630 | 1.88% | Shares |
| MORGAN STANLEY | $10,019,500 | 80,161 | 1.72% | Shares |
| MILLENNIUM MANAGEMENT LLC | $9,328,754 | 74,636 | 1.60% | Shares |
| Invesco Ltd. | $8,342,582 | 66,746 | 1.43% | Shares |
| JPMORGAN CHASE & CO | $8,035,582 | 64,730 | 1.38% | Shares |
| Bank of New York Mellon Corp | $7,510,596 | 60,090 | 1.29% | Shares |
| KENNEDY CAPITAL MANAGEMENT LLC | $7,081,308 | 56,655 | 1.21% | Shares |
| NORTHERN TRUST CORP | $6,596,722 | 52,778 | 1.13% | Shares |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $6,449,609 | 51,601 | 1.11% | Shares |
| Qube Research & Technologies Ltd | $5,516,934 | 44,139 | 0.95% | Shares |
| GOLDMAN SACHS GROUP INC | $4,811,502 | 38,495 | 0.82% | Shares |
| TWO SIGMA INVESTMENTS, LP | $4,568,634 | 36,552 | 0.78% | Shares |
| STEEL PARTNERS HOLDINGS L.P. | $4,558,260 | 36,469 | 0.78% | Shares |
| VANGUARD FIDUCIARY TRUST CO | $4,488,016 | 35,907 | 0.77% | Shares |
| Topline Capital Management, LLC | $4,034,927 | 32,282 | 0.69% | Shares |
| Atom Investors LP | $3,797,571 | 30,383 | 0.65% | Shares |
| MARTIN & CO INC /TN/ | $3,641,959 | 29,138 | 0.62% | Shares |
| PRINCIPAL FINANCIAL GROUP INC | $3,215,368 | 25,725 | 0.55% | Shares |
| GABELLI FUNDS LLC | $3,181,245 | 25,452 | 0.55% | Shares |
| FIRST TRUST ADVISORS LP | $3,142,373 | 25,141 | 0.54% | Shares |
| CITADEL ADVISORS LLC | $3,045,131 | 24,363 | 0.52% | Shares |
| Guardian Wealth Management, Inc. | $2,870,887 | 22,968 | 0.49% | Shares |
| Trexquant Investment LP | $2,828,399 | 22,629 | 0.48% | Shares |
| Jump Financial, LLC | $2,575,044 | 20,602 | 0.44% | Shares |
| Uncommon Cents Investing LLC | $2,372,310 | 18,980 | 0.41% | Shares |
| AMERIPRISE FINANCIAL INC | $2,317,357 | 18,539 | 0.40% | Shares |
| Public Sector Pension Investment Board | $2,281,692 | 18,255 | 0.39% | Shares |
| Y-Intercept (Hong Kong) Ltd | $2,099,332 | 16,796 | 0.36% | Shares |
| NORGES BANK | $2,012,339 | 16,100 | 0.34% | Shares |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | $1,862,976 | 14,905 | 0.32% | Shares |
| AMERICAN CENTURY COMPANIES INC | $1,773,233 | 14,187 | 0.30% | Shares |
| RHUMBLINE ADVISERS | $1,745,461 | 13,965 | 0.30% | Shares |
| Point72 Asset Management, L.P. | $1,684,490 | 13,477 | 0.29% | Shares |
| UBS Group AG | $1,667,491 | 13,341 | 0.29% | Shares |
| MARTINGALE ASSET MANAGEMENT L P | $1,488,256 | 11,907 | 0.26% | Shares |
| Nuveen, LLC | $1,468,633 | 11,750 | 0.25% | Shares |
| ExodusPoint Capital Management, LP | $1,392,389 | 11,140 | 0.24% | Shares |
| Legal & General Group Plc | $1,388,640 | 11,110 | 0.24% | Shares |
| Pullen Investment Management, LLC | $1,376,515 | 11,013 | 0.24% | Shares |
| SEGALL BRYANT & HAMILL, LLC | $1,370,640 | 10,966 | 0.23% | Shares |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $1,351,823 | 9,863 | 0.23% | Shares |
| BANK OF AMERICA CORP /DE/ | $1,260,524 | 10,085 | 0.22% | Shares |
| Swiss National Bank | $1,212,403 | 9,700 | 0.21% | Shares |
| Aristides Capital LLC | $1,046,291 | 8,371 | 0.18% | Shares |
| CORSAIR CAPITAL MANAGEMENT, L.P. | $1,002,670 | 8,022 | 0.17% | Shares |
| Freestone Grove Partners LP | $928,426 | 7,428 | 0.16% | Shares |
| Squarepoint Ops LLC | $901,303 | 7,211 | 0.15% | Shares |
| AQR CAPITAL MANAGEMENT LLC | $840,224 | 6,722 | 0.14% | Shares |
| STATE OF WISCONSIN INVESTMENT BOARD | $813,935 | 6,512 | 0.14% | Shares |
| D. E. Shaw & Co., Inc. | $803,061 | 6,425 | 0.14% | Shares |
| CWM, LLC | $799,072 | 5,830 | 0.14% | Shares |
| Creative Planning | $755,814 | 6,047 | 0.13% | Shares |
| BNP PARIBAS FINANCIAL MARKETS | $755,690 | 6,046 | 0.13% | Shares |
| Quantinno Capital Management LP | $749,954 | 6,000 | 0.13% | Shares |
| PRUDENTIAL FINANCIAL INC | $711,818 | 5,695 | 0.12% | Shares |
| ALLIANCEBERNSTEIN L.P. | $670,498 | 4,892 | 0.11% | Shares |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $661,947 | 5,296 | 0.11% | Shares |
| CITIGROUP INC | $660,822 | 5,287 | 0.11% | Shares |
| Dynamic Technology Lab Private Ltd | $658,000 | 5,265 | 0.11% | Shares |
| Meixler Investment Management, Ltd. | $648,323 | 5,187 | 0.11% | Shares |
| WELLS FARGO & COMPANY/MN | $641,505 | 5,132 | 0.11% | Shares |
| GUGGENHEIM CAPITAL LLC | $568,080 | 4,545 | 0.10% | Shares |
| Brevan Howard Capital Management LP | $517,959 | 4,144 | 0.09% | Shares |
| MARIETTA INVESTMENT PARTNERS LLC | $478,087 | 3,825 | 0.08% | Shares |
| SageView Advisory Group, LLC | $445,840 | 3,567 | 0.08% | Shares |
| VANGUARD ASSET MANAGEMENT, Ltd | $443,090 | 3,545 | 0.08% | Shares |
| LPL Financial LLC | $438,709 | 3,510 | 0.08% | Shares |
| EVERGREEN CAPITAL MANAGEMENT LLC | $431,216 | 3,450 | 0.07% | Shares |
| Russell Investments Group, Ltd. | $409,367 | 3,275 | 0.07% | Shares |
| SYON CAPITAL LLC | $394,718 | 3,158 | 0.07% | Shares |
| MetLife Investment Management, LLC | $389,844 | 3,119 | 0.07% | Shares |
| GC Wealth Management RIA, LLC | $379,095 | 3,033 | 0.06% | Shares |
| STIFEL FINANCIAL CORP | $375,470 | 3,004 | 0.06% | Shares |
| Nebula Research & Development LLC | $370,093 | 3,778 | 0.06% | Shares |
| EntryPoint Capital, LLC | $366,721 | 2,934 | 0.06% | Shares |
| XTX Topco Ltd | $362,596 | 2,901 | 0.06% | Shares |
| Illinois Municipal Retirement Fund | $355,847 | 2,847 | 0.06% | Shares |
| JANUS HENDERSON GROUP PLC | $320,715 | 2,329 | 0.05% | Shares |
| Vanguard Personalized Indexing Management, LLC | $318,100 | 2,545 | 0.05% | Shares |
| Mariner, LLC | $316,955 | 2,536 | 0.05% | Shares |
| Fortis Group Advisors, LLC | $316,100 | 2,529 | 0.05% | Shares |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $313,725 | 2,510 | 0.05% | Shares |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $299,976 | 2,400 | 0.05% | Shares |
| NEW YORK STATE COMMON RETIREMENT FUND | $292,977 | 2,344 | 0.05% | Shares |
| Louisiana State Employees Retirement System | $287,477 | 2,300 | 0.05% | Shares |
| Vanguard Global Advisers, LLC | $272,853 | 2,183 | 0.05% | Shares |
| Jain Global LLC | $262,479 | 2,100 | 0.04% | Shares |
| Savant Capital, LLC | $260,136 | 1,984 | 0.04% | Shares |
| Engineers Gate Manager LP | $231,232 | 1,850 | 0.04% | Shares |
| Connor, Clark & Lunn Investment Management Ltd. | $226,232 | 1,810 | 0.04% | Shares |
| Police & Firemen's Retirement System of New Jersey | $223,732 | 1,790 | 0.04% | Shares |
| Sanctuary Advisors, LLC | $221,107 | 1,769 | 0.04% | Shares |
| Atria Investments, Inc | $218,982 | 1,752 | 0.04% | Shares |
| BARCLAYS PLC | $210,984 | 1,688 | 0.04% | Shares |
| Vanguard Investments Australia, Ltd. | $186,985 | 1,496 | 0.03% | Shares |
| Quantbot Technologies LP | $174,736 | 1,398 | 0.03% | Shares |
| JONES FINANCIAL COMPANIES LLLP | $158,266 | 1,266 | 0.03% | Shares |
| OREGON PUBLIC EMPLOYEES RETIREMENT FUND | $150,488 | 1,204 | 0.03% | Shares |
| State of Tennessee, Department of Treasury | $145,364 | 1,163 | 0.02% | Shares |
| Ensign Peak Advisors, Inc | $142,864 | 1,143 | 0.02% | Shares |
| COMERICA BANK | $131,208 | 1,229 | 0.02% | Shares |
| FIFTH THIRD BANCORP | $128,365 | 1,027 | 0.02% | Shares |
| NATIONAL BANK OF CANADA /FI/ | $125,588 | 1,006 | 0.02% | Shares |
| Wilmington Savings Fund Society, FSB | $124,990 | 1,000 | 0.02% | Shares |
| Central Pacific Bank - Trust Division | $124,990 | 1,000 | 0.02% | Shares |
| US BANCORP \DE\ | $122,740 | 982 | 0.02% | Shares |
| AlphaQuest LLC | $122,133 | 1,144 | 0.02% | Shares |
| FMR LLC | $114,994 | 920 | 0.02% | Shares |
| NFSG Corp | $99,992 | 800 | 0.02% | Shares |
| NISA INVESTMENT ADVISORS, LLC | $94,617 | 757 | 0.02% | Shares |
| Parallel Advisors, LLC | $77,119 | 617 | 0.01% | Shares |
| Ameritas Investment Partners, Inc. | $54,371 | 435 | 0.01% | Shares |
| ROYAL BANK OF CANADA | $51,000 | 413 | 0.01% | Shares |
| GAMMA Investing LLC | $50,246 | 402 | 0.01% | Shares |
| Tower Research Capital LLC (TRC) | $46,371 | 371 | 0.01% | Shares |
| Operose Advisors LLC | $45,746 | 366 | 0.01% | Shares |
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | $37,008 | 300 | 0.01% | Shares |
| PNC Financial Services Group, Inc. | $36,621 | 293 | 0.01% | Shares |
| Solstein Capital, LLC | $36,247 | 290 | 0.01% | Shares |
| Larson Financial Group LLC | $34,247 | 274 | 0.01% | Shares |
| OSAIC HOLDINGS, INC. | $26,122 | 209 | 0.00% | Shares |
| AMERIFLEX GROUP, INC. | $24,998 | 200 | 0.00% | Shares |
| Caldwell Trust Co | $24,998 | 200 | 0.00% | Shares |
| Pinnacle Wealth Planning Services, Inc. | $19,498 | 156 | 0.00% | Shares |
| JNBA Financial Advisors | $18,749 | 150 | 0.00% | Shares |
| SIGNATUREFD, LLC | $14,874 | 119 | 0.00% | Shares |
| Salomon & Ludwin, LLC | $13,693 | 111 | 0.00% | Shares |
| FTB Advisors, Inc. | $13,616 | 139 | 0.00% | Shares |
| HARBOUR INVESTMENTS, INC. | $12,499 | 100 | 0.00% | Shares |
| GILL CAPITAL PARTNERS, LLC | $12,062 | 97 | 0.00% | Shares |
| Smartleaf Asset Management LLC | $11,793 | 95 | 0.00% | Shares |
| MassMutual Private Wealth & Trust, FSB | $11,374 | 91 | 0.00% | Shares |
| Godfrey Financial Associates, Inc. | $10,874 | 87 | 0.00% | Shares |
| Arax Advisory Partners | $10,749 | 86 | 0.00% | Shares |
| FIRST HORIZON CORP | $10,624 | 85 | 0.00% | Shares |
| Sterling Capital Management LLC | $9,874 | 79 | 0.00% | Shares |
| Christopher J. Hasenberg, Inc | $9,796 | 100 | 0.00% | Shares |
| Ares Financial Consulting, LLC | $8,874 | 71 | 0.00% | Shares |
| Federation des caisses Desjardins du Quebec | $7,499 | 60 | 0.00% | Shares |
| UMB Bank, n.a. | $5,500 | 44 | 0.00% | Shares |
| DEUTSCHE BANK AG\ | $4,125 | 33 | 0.00% | Shares |
| Versant Capital Management, Inc | $3,408 | 23 | 0.00% | Shares |
| SBI Securities Co., Ltd. | $3,250 | 26 | 0.00% | Shares |
| Quarry LP | $2,000 | 16 | 0.00% | Shares |
| TOUNJIAN ADVISORY PARTNERS, LLC | $1,421 | 11 | 0.00% | Shares |
| Keating Financial Advisory Services, Inc. | $1,250 | 10 | 0.00% | Shares |
| ASSETMARK, INC | $1,125 | 9 | 0.00% | Shares |
| Silver Grove Financial Group, Inc. | $1,125 | 9 | 0.00% | Shares |
| Lindbrook Capital, LLC | $1,055 | 12 | 0.00% | Shares |
| Claret Asset Management Corp | $1,024 | 8,195 | 0.00% | Shares |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | $944 | 7,554 | 0.00% | Shares |
| EverSource Wealth Advisors, LLC | $875 | 7 | 0.00% | Shares |
| Parkside Financial Bank & Trust | $875 | 7 | 0.00% | Shares |
| PRICE T ROWE ASSOCIATES INC /MD/ | $856 | 6,845 | 0.00% | Shares |
| Essential Partners LLC | $750 | 6 | 0.00% | Shares |
| CANADA LIFE ASSURANCE Co | $630 | 5,040 | 0.00% | Shares |
| Private Wealth Management Group, LLC | $625 | 5 | 0.00% | Shares |
| North Star Investment Management Corp. | $625 | 5 | 0.00% | Shares |
| SG Americas Securities, LLC | $616 | 4,932 | 0.00% | Shares |
| GSA CAPITAL PARTNERS LLP | $597 | 4,774 | 0.00% | Shares |
| Thrivent Financial for Lutherans | $435 | 3,481 | 0.00% | Shares |
| Hughes Financial Services, LLC | $375 | 3 | 0.00% | Shares |
| Plante Moran Financial Advisors, LLC | $375 | 3 | 0.00% | Shares |
| FARMERS & MERCHANTS INVESTMENTS INC | $375 | 3 | 0.00% | Shares |
| Farther Finance Advisors, LLC | $374 | 3 | 0.00% | Shares |
| State of Alaska, Department of Revenue | $265 | 2,130 | 0.00% | Shares |
| Allworth Financial LP | $250 | 2 | 0.00% | Shares |
| Clearstead Advisors, LLC | $250 | 2 | 0.00% | Shares |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY | $164 | 1,319 | 0.00% | Shares |
| Ankerstar Wealth, LLC | $125 | 1 | 0.00% | Shares |
| HUNTINGTON NATIONAL BANK | $125 | 1 | 0.00% | Shares |
| GILPIN WEALTH MANAGEMENT, LLC | $125 | 1 | 0.00% | Shares |
| KBC Group NV | $40 | 322 | 0.00% | Shares |
| HANTZ FINANCIAL SERVICES, INC. | $10 | 79 | 0.00% | Shares |
| BESSEMER GROUP INC | $2 | 18 | 0.00% | Shares |
| Covestor Ltd | $0 | 3 | 0.00% | Shares |
| Evolution Advisers, Inc. | $0 | 2 | 0.00% | Shares |