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Who owns NPK International (NPKI) stock

241 funds reported NPK International (NPKI) shares in their latest 13F filings, worth $1.3B in all. The largest holder is BlackRock ($126M). Last quarter 129 funds added to their stakes and 99 cut them.

Largest holders of NPKI (13F)Largest holders of NPKI (13F)BlackRock$126MAmeriprise Financial$71.4MDimensional Fund Advisors LP$57.9MVanguard Capital Management LLC$57.4MVanguard Group$56.1MAmerican Century Companies$49.8MGeode Capital Management, LLC$37.7MWasatch Advisors LP$34.3MRoyce & Associates LP$34.2MState Street$32.1M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock7,940,503$126Mincrease2026-06-30
Ameriprise Financial4,486,433$71.4Mdecrease2026-06-30
Dimensional Fund Advisors LP3,641,547$57.9Mdecrease2026-06-30
Vanguard Capital Management LLC3,604,823$57.4Mincrease2026-06-30
Vanguard Group4,706,012$56.1Mdecrease2025-12-31
American Century Companies3,128,652$49.8Mincrease2026-06-30
Geode Capital Management, LLC2,369,714$37.7Mincrease2026-06-30
Wasatch Advisors LP3,006,486$34.3Mincrease2026-09-30
Royce & Associates LP2,149,100$34.2Mincrease2026-06-30
State Street2,014,703$32.1Mincrease2026-06-30
Punch & Associates Investment Management1,738,857$27.7Mdecrease2026-06-30
Emerald Advisers, LLC1,573,597$25.0Mnew2026-06-30
Massachusetts Financial Services1,452,984$23.1Mnew2026-06-30
First Eagle Investment Management, LLC1,442,004$22.9Mincrease2026-06-30
Russell Investments Group1,395,934$22.2Mdecrease2026-06-30

NPK International's latest quarter

NPK International, Q3 2026: revenue $76.3M (+11% year over year), operating margin 12.0%, net earnings $6.1M, operating cash flow $7.1M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most NPKI stock?

By the latest 13F filings: BlackRock ($126M); Ameriprise Financial ($71.4M); Dimensional Fund Advisors LP ($57.9M); Vanguard Capital Management LLC ($57.4M); Vanguard Group ($56.1M).

What is the short interest in NPKI?

2,380,792 shares were sold short at the 2026-10-15 settlement, -3.2% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.