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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, Q2 2026

Institutional positions in NPK International Inc. as of Jun 30, 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
256
+14 vs. Q1 2026
Shares held
78.0M
+2.44M (+3.2%) vs. Q1 2026
Total value
$1.24B
+$145.9M (+13.3%) vs. Q1 2026
New holders
39
100 more added
Sold out
25
85 more reduced

4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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.

Institutional holdersQ2 2026: 256 institutions
Q1 2021: 114 institutionsQ2 2021: 124 institutionsQ3 2021: 110 institutionsQ4 2021: 113 institutionsQ1 2022: 128 institutionsQ2 2022: 120 institutionsQ3 2022: 115 institutionsQ4 2022: 119 institutionsQ1 2023: 119 institutionsQ2 2023: 127 institutionsQ3 2023: 151 institutionsQ4 2023: 180 institutionsQ1 2024: 187 institutionsQ2 2024: 197 institutionsQ3 2024: 189 institutionsQ4 2024: 177 institutionsQ1 2025: 175 institutionsQ2 2025: 189 institutionsQ3 2025: 208 institutionsQ4 2025: 241 institutionsQ1 2026: 246 institutionsQ2 2026: 256 institutions
Value heldQ2 2026: $1.24B
Q1 2021: $205.6MQ2 2021: $229.6MQ3 2021: $212.0MQ4 2021: $186.7MQ1 2022: $244.2MQ2 2022: $205.1MQ3 2022: $163.3MQ4 2022: $248.8MQ1 2023: $220.2MQ2 2023: $304.4MQ3 2023: $443.4MQ4 2023: $457.5MQ1 2024: $491.3MQ2 2024: $597.1MQ3 2024: $511.3MQ4 2024: $598.5MQ1 2025: $439.7MQ2 2025: $645.1MQ3 2025: $836.9MQ4 2025: $896.1MQ1 2026: $1.10BQ2 2026: $1.24B
Institutions holding NPKI and their total value by quarter
QuarterHoldersValue
Q2 2026256$1.24B
Q1 2026246$1.10B
Q4 2025241$896.1M
Q3 2025208$836.9M
Q2 2025189$645.1M
Q1 2025175$439.7M
Q4 2024177$598.5M
Q3 2024189$511.3M
Q2 2024197$597.1M
Q1 2024187$491.3M
Q4 2023180$457.5M
Q3 2023151$443.4M
Q2 2023127$304.4M
Q1 2023119$220.2M
Q4 2022119$248.8M
Q3 2022115$163.3M
Q2 2022120$205.1M
Q1 2022128$244.2M
Q4 2021113$186.7M
Q3 2021110$212.0M
Q2 2021124$229.6M
Q1 2021114$205.6M

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding NPK International Inc.; share changes are against Q1 2026.

Institutions holding NPKI in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Advisor Group Holdings, Inc.8,384$133.4K0.00%+9+0.1%Added
Mitsubishi UFJ Trust & Banking Corp8,318$132.3K0.00%+8,318New
GAMMA Investing LLC8,176$130.1K0.00%+31+0.4%Added
Ameritas Investment Partners, Inc.7,520$119.6K0.00%+959+14.6%Added
Rockefeller Capital Management L.P.7,114$113.2K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC6,720$106.9K0.00%+6,720New
Wealth Enhancement Advisory Services, LLC46,511$93.0K0.00%+3,419+7.9%Added
State of Wyoming4,909$78.1K0.01%−41,804−89.5%Reduced
Federated Hermes, Inc.4,771$75.9K0.00%+22+0.5%Added
Fifth Third Bancorp4,746$75.5K0.00%−305−6.0%Reduced
Royal Bank of Canada4,471$71.0K0.00%+2,067+86.0%Added
Blue Bell Private Wealth Management, LLC2,139$34.0K0.00%00.0%Unchanged
BNP PARIBAS ASSET MANAGEMENT Holding S.A.2,132$33.9K0.00%−596−21.8%Reduced
Farther Finance Advisors, LLC1,529$24.3K0.00%−276−15.3%Reduced
Group One Trading, L.P.1,468$23.4K0.00%+475+47.8%Added
Public Employees Retirement System of Ohio1,404$22.3K0.00%−44,889−97.0%Reduced
Zions Bancorporation, National Association1,169$18.6K0.00%00.0%Unchanged
Simplex Trading, LLC969$15.4K0.00%+694+252.4%Added
Global Retirement Partners, LLC890$14.2K0.00%+890New
Allworth Financial LP872$13.9K0.00%+554+174.2%Added
Acumen Wealth Advisors, LLC777$12.4K0.00%+136+21.2%Added
WPG Advisers, LLC660$10.5K0.01%+107+19.3%Added
Larson Financial Group LLC604$9.61K0.00%00.0%Unchanged
Pinnacle Wealth Planning Services, Inc.565$8.99K0.00%00.0%Unchanged
LRI Investments, LLC441$7.02K0.00%+441New
EverSource Wealth Advisors, LLC403$6.41K0.00%−1,202−74.9%Reduced
SJS Investment Consulting Inc.395$6.29K0.00%+15+3.9%Added
US Bancorp326$5.19K0.00%00.0%Unchanged
Cedar Mountain Advisors, LLC304$4.84K0.00%00.0%Unchanged
Sterling Capital Management LLC291$4.63K0.00%−2,428−89.3%Reduced
Essential Partners LLC289$4.60K0.00%+131+82.9%Added
JPL Wealth Management, LLC286$4.55K0.00%00.0%Unchanged
Quarry LP279$4.44K0.00%+98+54.1%Added
Caitong International Asset Management Co., Ltd273$4.34K0.00%−807−74.7%Reduced
Transamerica Financial Advisors, Inc.240$3.82K0.00%+240New
Valued Wealth Advisors LLC231$3.68K0.00%+59+34.3%Added
Picton Mahoney Asset Management192$3.06K0.00%+192New
Smartleaf Asset Management LLC131$2.08K0.00%00.0%Unchanged
Los Angeles Capital Management LLC130$2.07K0.00%00.0%Unchanged
Aster Capital Management (DIFC) Ltd118$1.88K0.00%+118New
IFP Advisors, Inc100$1.59K0.00%−8−7.4%Reduced
Toth Financial Advisory Corp100$1.59K0.00%00.0%Unchanged
Basecamp Wealth Advisors LLC97$1.54K0.00%−24−19.8%Reduced
Optiver Holding B.V.83$1.32K0.00%−283−77.3%Reduced
Signaturefd, LLC69$1.10K0.00%00.0%Unchanged
Covestor Ltd40$1.00K0.00%+11+37.9%Added
Parallel Advisors, LLC62$9860.00%00.0%Unchanged
Wealth Enhancement Trust Services, Inc.54$8590.00%+54New
Jones Financial Companies LLLP52$8120.00%00.0%Unchanged
Clearstead Advisors, LLC46$7330.00%+46New
Silver Grove Financial Group, Inc.34$5410.00%+34New
SBI Securities Co., Ltd.30$4770.00%−10−25.0%Reduced
Fortitude Family Office, LLC11$1750.00%00.0%Unchanged
Harbour Investments, Inc.9$1430.00%00.0%Unchanged
National Bank of Canada1$160.00%+1New
Apeiron RIA LLC5,337––+5,337New
Jane Street Group, LLC0$00.00%−337,699−100.0%Sold out
Roubaix Capital, LLC0$00.00%−269,935−100.0%Sold out
Lazard Asset Management LLC0$00.00%−158,527−100.0%Sold out
Panoramic Capital, LLC0$00.00%−127,754−100.0%Sold out
Man Group plc0$00.00%−124,779−100.0%Sold out
Walleye Capital LLC0$00.00%−58,425−100.0%Sold out
Bridgeway Capital Management, LLC0$00.00%−50,740−100.0%Sold out
Empowered Funds, LLC0$00.00%−49,740−100.0%Sold out
HRT Financial LP0$00.00%−32,254−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−27,804−100.0%Sold out
Shay Capital LLC0$00.00%−25,000−100.0%Sold out
Mariner, LLC0$00.00%−18,015−100.0%Sold out
MQS Management LLC0$00.00%−13,938−100.0%Sold out
Universal- Beteiligungs- und Servicegesellschaft mbH0$00.00%−13,851−100.0%Sold out
Mirabella Financial Services LLP0$00.00%−11,446−100.0%Sold out
Polymer Capital Management (US) LLC0$00.00%−10,289−100.0%Sold out
Cresset Asset Management, LLC0$00.00%−10,000−100.0%Sold out
Quadrant Capital Group LLC0$00.00%−1,531−100.0%Sold out
MAI Capital Management0$00.00%−715−100.0%Sold out
United Financial Planning Group LLC0$00.00%−342−100.0%Sold out
Root Financial Partners, LLC0$00.00%−230−100.0%Sold out
Bayban0$00.00%−159−100.0%Sold out
Northwestern Mutual Wealth Management Co0$00.00%−48−100.0%Sold out
Rachor Investment Advisory Services, LLC0$00.00%−35−100.0%Sold out
Massmutual Trust Co FSB0$00.00%−24−100.0%Sold out
Paragon Associates & Paragon Associates II Joint Venture––––Not filed
Janus Henderson Group PLC––––Not filed
CWM, LLC––––Not filed
USA Financial Portformulas Corp––––Not filed