NPK InternationalNPKI
13F holders, Q3 2025 (September 30)208holders +19
37new positions
17sold out
8famous investors
$11.31avg. 13F price*
At the end of Q3 2025, 208 institutions reported holding NPK International Inc. (NPKI) in their 13F filings, up 19 from Q2 2025. 37 opened new positions and 17 sold out. The largest holders were BlackRock, Inc. ($73.1M), Ameriprise Financial Inc. ($59.4M) and Dimensional Fund Advisors LP ($54.3M). 8 famous investors held it, including Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- NPK International Inc.
- CUSIP
- 651718504
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 37 | $12.8M |
| Exits | 17 | $27.8M |
All 13F filers, Q2 2025 → Q3 2025: 7,833,521 shares bought and 9,602,926 shares sold, net −1,769,405 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 208 holders
| BlackRock, Inc. | 0.00% | Reduce -2.0% | 6,465,209 | $73.1M |
| Ameriprise Financial Inc. | 0.01% | Reduce -14.0% | 5,247,637 | $59.4M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -10.0% | 4,797,458 | $54.3M |
| Vanguard Group Inc. | 0.00% | Add +0.4% | 4,750,263 | $53.7M |
| American Century Companies Inc. | 0.02% | Add +13.1% | 2,971,066 | $33.6M |
| Royce & Associates LP | 0.28% | Reduce -4.8% | 2,442,280 | $27.6M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.6% | 2,321,834 | $26.3M |
| Wasatch Advisors LP | 0.14% | Reduce -23.4% | 2,281,864 | $25.8M |
| State Street Corp. | 0.00% | Reduce -1.5% | 2,031,279 | $23.0M |
| Russell Investments Group, Ltd. | 0.02% | Add +47.2% | 1,933,526 | $21.9M |
| Punch & Associates Investment Management, Inc. | 1.26% | Add +1.5% | 1,894,726 | $21.4M |
| Prudential Financial Inc. | 0.02% | Add +341.2% | 1,827,545 | $20.7M |
| Morgan Stanley | 0.00% | Reduce -16.2% | 1,642,905 | $18.6M |
| ACK Asset Management LLC | 2.23% | Add +28.5% | 1,576,808 | $17.8M |
| Cannell Capital LLC | 4.32% | Reduce -4.2% | 1,454,204 | $16.4M |
| Loomis Sayles & Co. L P | 0.02% | Reduce -13.1% | 1,334,229 | $15.1M |
| Ancora Advisors LLC | 0.27% | Reduce -17.2% | 1,195,880 | $13.5M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +11.9% | 1,066,383 | $12.1M |
| Pennant Select, LLC | 7.56% | Reduce -2.4% | 1,062,263 | $12.0M |
| ArrowMark Colorado Holdings LLC | 0.22% | Reduce -22.7% | 1,047,050 | $11.8M |
| Tieton Capital Management, LLC | 3.98% | Add +3.5% | 1,012,982 | $11.5M |
| Northern Trust Corp. | 0.00% | Reduce -0.2% | 987,985 | $11.2M |
| Silvercrest Asset Management Group LLC | 0.07% | Reduce -2.7% | 921,210 | $10.4M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Add +173.8% | 883,571 | $10.0M |
| Bank of New York Mellon Corp | 0.00% | Add +213.0% | 850,913 | $9.6M |
| Roubaix Capital, LLC | 3.91% | Reduce -7.5% | 742,697 | $8.4M |
| Bridgeway Capital Management, LLC | 0.17% | Add +3.2% | 689,815 | $7.8M |
| Panagora Asset Management Inc. | 0.03% | Add +12.4% | 683,043 | $7.7M |
| Wellington Management Group LLP | 0.00% | No change | 661,697 | $7.5M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -6.4% | 658,532 | $7.4M |
| Rice Hall James & Associates, LLC | 0.35% | Reduce -12.6% | 573,673 | $6.5M |
| Renaissance Technologies | 0.01% | Reduce -20.3% | 568,341 | $6.4M |
| Uniplan Investment Counsel, Inc. | 0.65% | Reduce -14.2% | 562,645 | $6.4M |
| Citadel Advisors | 0.00% | Reduce -24.3% | 523,679 | $5.9M |
| Nuveen, LLC | 0.00% | Reduce -1.3% | 520,943 | $5.9M |
| Tudor Investment Corporation | 0.04% | Add +985.9% | 506,585 | $5.7M |
| Granahan Investment Management, LLC | 0.23% | Reduce -24.0% | 499,940 | $5.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +9.5% | 498,681 | $5.6M |
| Oberweis Asset Management Inc./ | 0.21% | No change | 496,500 | $5.6M |
| Jacobs Levy Equity Management, Inc. | 0.02% | Reduce -0.4% | 492,622 | $5.6M |
| Paragon Associates & Paragon Associates II Joint Venture | 9.08% | Reduce -10.0% | 450,000 | $5.1M |
| Empowered Funds, LLC | 0.05% | Add +5.2% | 439,815 | $5.0M |
| Two Sigma Investments, LP | 0.01% | Add +293.7% | 433,700 | $4.9M |
| Jane Street Group, LLC | 0.01% | Reduce -5.9% | 421,189 | $4.8M |
| Marathon Capital Management | 1.01% | Reduce -1.9% | 388,350 | $4.4M |
| Calamos Advisors LLC | 0.02% | Add +338.1% | 339,092 | $3.8M |
| G2 Investment Partners Management LLC | 0.66% | Add +158.8% | 285,200 | $3.2M |
| D. E. Shaw & Co. | 0.00% | Add +198.2% | 277,975 | $3.1M |
| First Eagle Investment Management, LLC | 0.01% | Reduce -34.8% | 272,121 | $3.1M |
| UBS Group AG | 0.00% | Add +302.6% | 252,718 | $2.9M |
| Cubist Systematic Strategies, LLC | 0.04% | Add +4.9% | 246,944 | $2.8M |
| Fisher Asset Management | 0.00% | No change | 239,286 | $2.7M |
| Two Sigma Advisers, LP | 0.01% | Add +295.1% | 233,491 | $2.6M |
| Harbor Capital Advisors, Inc. | 0.20% | Reduce -74.3% | 230,425 | $2.6M |
| JPMorgan Chase & Co. | 0.00% | Add +200.4% | 223,464 | $2.5M |
| Jump Financial, LLC | 0.03% | New | 218,000 | $2.5M |
| Jackson Creek Investment Advisors LLC | 0.66% | Reduce -0.0% | 201,262 | $2.3M |
| Raymond James Financial Inc. | 0.00% | No change | 187,387 | $2.1M |
| Kennedy Capital Management LLC | 0.05% | Reduce -0.3% | 185,473 | $2.1M |
| Skylands Capital, LLC | 0.29% | Reduce -15.8% | 184,000 | $2.1M |
| Invesco Ltd. | 0.00% | Add +2.8% | 180,196 | $2.0M |
| 1492 Capital Management LLC | 0.78% | Add +13.3% | 171,128 | $1.9M |
| Panoramic Capital, LLC | 1.22% | New | 170,434 | $1.9M |
| Millennium Management | 0.00% | Add +82.8% | 167,043 | $1.9M |
| Swiss National Bank | 0.00% | No change | 157,000 | $1.8M |
| Rhumbline Advisers | 0.00% | Reduce -2.5% | 143,748 | $1.6M |
| Bank of America Corp. | 0.00% | Add +145.3% | 143,392 | $1.6M |
| Ironwood Investment Management LLC | 0.70% | Reduce -0.7% | 142,154 | $1.6M |
| Perritt Capital Management Inc | 0.74% | Reduce -1.1% | 138,500 | $1.6M |
| AQR Capital Management | 0.00% | Add +48.7% | 128,487 | $1.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -47.7% | 124,141 | $1.4M |
| Barclays PLC | 0.00% | Reduce -28.0% | 111,040 | $1.3M |
| Franklin Resources Inc. | 0.00% | Reduce -74.9% | 108,572 | $1.2M |
| Rothschild Investment LLC | 0.06% | Reduce -3.9% | 101,285 | $1.1M |
| Alliancebernstein L.P. | 0.00% | No change | 92,022 | $1.0M |
| State of Wisconsin Investment Board | 0.00% | Add +113.7% | 87,616 | $991K |
| Jennison Associates LLC | 0.00% | New | 85,001 | $961K |
| Principal Financial Group Inc. | 0.00% | Add +95.1% | 79,976 | $905K |
| CANADA LIFE ASSURANCE Co | 0.00% | No change | 77,893 | $878K |
| California State Teachers Retirement System | 0.00% | Reduce -0.0% | 75,849 | $858K |
| Boston Partners | 0.00% | Reduce -17.7% | 75,637 | $855K |
| Victory Capital Management Inc. | 0.00% | Reduce -54.2% | 74,750 | $845K |
| Campbell & CO Investment Adviser LLC | 0.06% | Add +143.3% | 71,019 | $803K |
| CoreCommodity Management, LLC | 0.15% | Reduce -20.0% | 70,937 | $802K |
| Wells Fargo & Company | 0.00% | Add +14.0% | 69,916 | $791K |
| Penbrook Management LLC | 0.54% | No change | 68,585 | $776K |
| Northeast Financial Group, Inc. | 0.19% | Reduce -28.8% | 66,810 | $756K |
| Pinnacle Associates Ltd. | 0.01% | New | 66,478 | $752K |
| Verition Fund Management LLC | 0.00% | Add +7.7% | 65,042 | $736K |
| Boothbay Fund Management, LLC | 0.02% | Add +154.8% | 64,680 | $732K |
| Deutsche Bank AG | 0.00% | Add +16.3% | 64,565 | $730K |
| Sei Investments Co. | 0.00% | New | 61,603 | $697K |
| STRS Ohio | 0.00% | Reduce -11.1% | 61,600 | $697K |
| Legal & General Group Plc | 0.00% | Reduce -28.0% | 60,102 | $680K |
| T. Rowe Price Associates Inc. | 0.00% | Add +10.4% | 58,555 | $663K |
| Citigroup Inc. | 0.00% | Add +35.1% | 57,894 | $655K |
| Round Rock Advisors LLC | 0.10% | New | 49,550 | $633K |
| Public Employees Retirement System of Ohio | 0.00% | Reduce -0.1% | 53,733 | $608K |
| Fuller & Thaler Asset Management, Inc. | 0.00% | Reduce -39.5% | 53,270 | $602K |
| Penn Capital Management Company, LLC | 0.05% | New | 53,029 | $600K |
"% of holder's portfolio" is NPKI's weight in each manager's 13F, not the share of NPK International Inc. the manager owns.