NPK International Inc.
NPKI- Exchange
- NYSE
- Industry
- Services-Miscellaneous Equipment Rental & Leasing
- SEC CIK
- 0000071829
In the last 90 days, NPK International Inc. insiders filed 0 open-market purchases and 3 sales; 256 institutions reported holding it in 13F filings for Q2 2026, worth $1.24B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in NPK International Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 246
- +10 vs. Q4 2025
- Shares held
- 76.0M
- +5.69M (+8.1%) vs. Q4 2025
- Total value
- $1.10B
- +$262.3M (+31.3%) vs. Q4 2025
- New holders
- 38
- 87 more added
- Sold out
- 28
- 92 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting NPKI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 256 | $1.24B |
| Q1 2026 | 246 | $1.10B |
| Q4 2025 | 241 | $896.1M |
| Q3 2025 | 208 | $836.9M |
| Q2 2025 | 189 | $645.1M |
| Q1 2025 | 175 | $439.7M |
| Q4 2024 | 177 | $598.5M |
| Q3 2024 | 189 | $511.3M |
| Q2 2024 | 197 | $597.1M |
| Q1 2024 | 187 | $491.3M |
| Q4 2023 | 180 | $457.5M |
| Q3 2023 | 151 | $443.4M |
| Q2 2023 | 127 | $304.4M |
| Q1 2023 | 119 | $220.2M |
| Q4 2022 | 119 | $248.8M |
| Q3 2022 | 115 | $163.3M |
| Q2 2022 | 120 | $205.1M |
| Q1 2022 | 128 | $244.2M |
| Q4 2021 | 113 | $186.7M |
| Q3 2021 | 110 | $212.0M |
| Q2 2021 | 124 | $229.6M |
| Q1 2021 | 114 | $205.6M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding NPK International Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7,202,705 | $104.4M | 0.00% | +283,089+4.1% | Added |
| Ameriprise Financial Inc | 5,623,552 | $81.5M | 0.02% | +458,342+8.9% | Added |
| Dimensional Fund Advisors LP | 3,983,658 | $57.7M | 0.01% | −482,892−10.8% | Reduced |
| Vanguard Capital Management LLC | 3,424,942 | $49.6M | 0.00% | +3,424,942 | New |
| American Century Companies Inc | 3,043,763 | $44.1M | 0.02% | −27,877−0.9% | Reduced |
| Wasatch Advisors Inc | 2,899,021 | $42.0M | 0.28% | +683,116+30.8% | Added |
| Geode Capital Management, LLC | 2,244,164 | $32.5M | 0.00% | +266,409+13.5% | Added |
| Royce & Associates LP | 2,071,010 | $30.0M | 0.30% | −114,600−5.2% | Reduced |
| State Street Corp | 1,955,319 | $28.3M | 0.00% | −21,681−1.1% | Reduced |
| Morgan Stanley | 1,823,060 | $26.4M | 0.00% | +129,998+7.7% | Added |
| Punch & Associates Investment Management, Inc. | 1,818,790 | $26.4M | 1.52% | −34,014−1.8% | Reduced |
| Russell Investments Group, Ltd. | 1,726,243 | $25.0M | 0.03% | −154,684−8.2% | Reduced |
| Prudential Financial Inc | 1,686,629 | $24.4M | 0.03% | −232,283−12.1% | Reduced |
| Thrivent Financial for Lutherans | 1,665,623 | $24.1M | 0.05% | +77,894+4.9% | Added |
| Arrowstreet Capital, Limited Partnership | 1,539,088 | $22.3M | 0.01% | +486,846+46.3% | Added |
| Loomis Sayles & Co L P | 1,177,993 | $17.1M | 0.02% | −109,037−8.5% | Reduced |
| Allianz Asset Management GmbH | 1,156,530 | $16.8M | 0.02% | +655,230+130.7% | Added |
| Qube Research & Technologies Ltd | 1,140,585 | $16.5M | 0.02% | +369,139+47.9% | Added |
| Electron Capital Partners, LLC | 1,099,943 | $15.9M | 0.75% | +1,099,943 | New |
| Charles Schwab Investment Management Inc | 1,095,601 | $15.9M | 0.00% | −68,174−5.9% | Reduced |
| Nuveen, LLC | 1,073,065 | $15.5M | 0.00% | −44,992−4.0% | Reduced |
| Two Sigma Investments, LP | 1,060,904 | $15.4M | 0.01% | +555,746+110.0% | Added |
| Goldman Sachs Group Inc | 1,011,689 | $14.7M | 0.00% | +308,695+43.9% | Added |
| Northern Trust Corp | 968,501 | $14.0M | 0.00% | +24,755+2.6% | Added |
| Vanguard Portfolio Management LLC | 861,467 | $12.5M | 0.00% | +861,467 | New |
| SEI Investments Co | 837,157 | $12.1M | 0.01% | +459,328+121.6% | Added |
| Tieton Capital Management, LLC | 835,920 | $12.1M | 4.06% | +35,358+4.4% | Added |
| Axiom Investors LLC | 737,325 | $10.7M | 0.12% | +737,325 | New |
| Ancora Advisors, LLC | 727,350 | $10.5M | 0.22% | −231,210−24.1% | Reduced |
| Panagora Asset Management Inc | 677,552 | $9.82M | 0.04% | +8,249+1.2% | Added |
| Cannell Capital LLC | 654,689 | $9.49M | 6.16% | −286,067−30.4% | Reduced |
| Silvercrest Asset Management Group LLC | 605,269 | $8.77M | 0.06% | −66,771−9.9% | Reduced |
| ArrowMark Colorado Holdings LLC | 566,395 | $8.21M | 0.22% | −411,568−42.1% | Reduced |
| First Sabrepoint Capital Management LP | 550,000 | $7.97M | 3.26% | −100,000−15.4% | Reduced |
| Rice Hall James & Associates, LLC | 545,077 | $7.90M | 0.44% | −4,644−0.8% | Reduced |
| Vanguard Fiduciary Trust Co | 536,003 | $7.77M | 0.00% | +536,003 | New |
| Uniplan Investment Counsel, Inc. | 527,684 | $7.65M | 0.79% | −33,425−6.0% | Reduced |
| Oberweis Asset Management Inc | 518,150 | $7.51M | 0.22% | +9,400+1.8% | Added |
| Asset Management One Co.,Ltd. | 505,520 | $7.32M | 0.02% | +505,520 | New |
| Granahan Investment Management Inc | 401,658 | $5.82M | 0.28% | −178,789−30.8% | Reduced |
| Jacobs Levy Equity Management, Inc | 381,438 | $5.53M | 0.02% | −95,880−20.1% | Reduced |
| Paragon Associates & Paragon Associates II Joint Venture | 375,000 | $5.43M | 7.38% | −25,000−6.3% | Reduced |
| Algert Global LLC | 370,908 | $5.37M | 0.08% | −414,972−52.8% | Reduced |
| Renaissance Technologies LLC | 362,167 | $5.25M | 0.01% | −157,141−30.3% | Reduced |
| Calamos Advisors LLC | 353,627 | $5.12M | 0.02% | −3,976−1.1% | Reduced |
| Marathon Capital Management | 346,110 | $5.02M | 1.13% | −11,280−3.2% | Reduced |
| Jane Street Group, LLC | 337,699 | $4.89M | 0.01% | +13,582+4.2% | Added |
| OP Asset Management Ltd | 333,418 | $4.83M | 0.05% | +229,161+219.8% | Added |
| UBS Group AG | 312,551 | $4.53M | 0.00% | +24,166+8.4% | Added |
| Point72 Asset Management, L.P. | 304,183 | $4.41M | 0.01% | −232,848−43.4% | Reduced |
| First Eagle Investment Management, LLC | 273,821 | $3.97M | 0.01% | +8,500+3.2% | Added |
| Roubaix Capital, LLC | 269,935 | $3.91M | 1.83% | −305,413−53.1% | Reduced |
| Invesco Ltd. | 268,451 | $3.89M | 0.00% | +88,115+48.9% | Added |
| Bank of New York Mellon Corp | 266,284 | $3.86M | 0.00% | −2,107−0.8% | Reduced |
| Wellington Management Group LLP | 264,617 | $3.83M | 0.00% | −241,980−47.8% | Reduced |
| AQR Capital Management LLC | 241,315 | $3.50M | 0.00% | +66,812+38.3% | Added |
| Bank of America Corp | 240,022 | $3.48M | 0.00% | +42,308+21.4% | Added |
| Fisher Asset Management, LLC | 233,017 | $3.38M | 0.00% | +1,046+0.5% | Added |
| JPMorgan Chase & Co | 207,952 | $2.96M | 0.00% | −22,927−9.9% | Reduced |
| Kennedy Capital Management, Inc. | 187,651 | $2.72M | 0.06% | +3,361+1.8% | Added |
| Harbor Capital Advisors, Inc. | 185,603 | $2.69M | 0.22% | −33,046−15.1% | Reduced |
| Raymond James Financial Inc | 180,137 | $2.61M | 0.00% | −3,412−1.9% | Reduced |
| 1492 Capital Management LLC | 176,003 | $2.55M | 0.97% | −1,660−0.9% | Reduced |
| Swiss National Bank | 166,600 | $2.41M | 0.00% | 00.0% | Unchanged |
| Skylands Capital, LLC | 164,300 | $2.38M | 0.31% | −5,400−3.2% | Reduced |
| Gilder Gagnon Howe & Co LLC | 160,596 | $2.33M | 0.03% | −9,677−5.7% | Reduced |
| Millennium Management LLC | 158,892 | $2.30M | 0.00% | +52,405+49.2% | Added |
| Lazard Asset Management LLC | 158,527 | $2.30M | 0.00% | −78,695−33.2% | Reduced |
| Riverwater Partners LLC | 155,150 | $2.25M | 0.75% | −2,726−1.7% | Reduced |
| Campbell & CO Investment Adviser LLC | 144,002 | $2.09M | 0.12% | +57,093+65.7% | Added |
| Ironwood Investment Management LLC | 140,616 | $2.04M | 0.85% | −1,282−0.9% | Reduced |
| Engineers Gate Manager LP | 138,946 | $2.01M | 0.03% | +35,967+34.9% | Added |
| Squarepoint Ops LLC | 138,068 | $2.00M | 0.00% | +79,412+135.4% | Added |
| ExodusPoint Capital Management, LP | 135,822 | $1.97M | 0.02% | +135,822 | New |
| UBS Asset Management Americas Inc | 129,633 | $1.88M | 0.00% | +2,122+1.7% | Added |
| Panoramic Capital, LLC | 127,754 | $1.85M | 1.30% | −75,000−37.0% | Reduced |
| Jump Financial, LLC | 124,975 | $1.81M | 0.03% | −114,284−47.8% | Reduced |
| Man Group plc | 124,779 | $1.81M | 0.00% | +61,452+97.0% | Added |
| North Star Investment Management Corp. | 120,000 | $1.74M | 0.11% | +120,000 | New |
| Rhumbline Advisers | 117,604 | $1.70M | 0.00% | −6,048−4.9% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 110,282 | $1.60M | 0.03% | +4,666+4.4% | Added |
| Franklin Resources Inc | 105,147 | $1.52M | 0.00% | +412+0.4% | Added |
| Principal Financial Group Inc | 104,255 | $1.51M | 0.00% | −11,490−9.9% | Reduced |
| Crown Advisors Management, Inc. | 100,000 | $1.45M | 0.96% | +100,000 | New |
| D. E. Shaw & Co., Inc. | 97,042 | $1.41M | 0.00% | −105,088−52.0% | Reduced |
| SG Americas Securities, LLC | 95,553 | $1.39M | 0.00% | +56,277+143.3% | Added |
| Dark Forest Capital Management LP | 93,702 | $1.36M | 0.12% | +93,702 | New |
| Round Rock Advisors, LLC | 92,505 | $1.34M | 0.21% | +391+0.4% | Added |
| Gsa Capital Partners LLP | 83,974 | $1.22M | 0.08% | −30,884−26.9% | Reduced |
| State of Wisconsin Investment Board | 82,388 | $1.19M | 0.00% | −11,503−12.3% | Reduced |
| California State Teachers Retirement System | 80,217 | $1.16M | 0.00% | −612−0.8% | Reduced |
| Deutsche Bank AG | 77,378 | $1.12M | 0.00% | +7,724+11.1% | Added |
| Citigroup Inc | 77,283 | $1.12M | 0.00% | +74,945+3,205.5% | Added |
| Pinnacle Associates Ltd | 76,516 | $1.11M | 0.01% | +9,876+14.8% | Added |
| Price T Rowe Associates Inc | 74,766 | $1.08M | 0.00% | +13,030+21.1% | Added |
| Quantbot Technologies LP | 74,527 | $1.08M | 0.04% | +4,819+6.9% | Added |
| Rothschild Investment LLC | 69,027 | $1.00M | 0.05% | −32,296−31.9% | Reduced |
| Penbrook Management LLC | 67,250 | $974.5K | 0.74% | 00.0% | Unchanged |
| Sigma Planning Corp | 60,000 | $869.4K | 0.02% | +60,000 | New |
| Citadel Advisors LLC | 59,689 | $864.9K | 0.00% | −181,951−75.3% | Reduced |