NPK International NPKI Institutional Ownership

NPK International Inc. (NYSE:NPKI) has 256 institutional investors that have filed 13F reports for the period ending June 2026.

• These investors held 94.2% of outstanding shares in June 2026, up from 90.8% in March 2026.
• Their total shares held in NPKI increased 6.33% quarter over quarter, and separately, investors owning NPK International increased 37.63% from a year ago.
• Activity in NPKI broke down as 139 buyers, 85 sellers, and 32 unchanged among 256 total holders.
• In total, institutional investors held 79.6Mn shares in NPK International as of June 2026, up by 4.74Mn shares quarter on quarter, and up 1.98Mn shares year over year.
• As of June 30, 2026, the biggest holder of NPK International is BlackRock, Inc. at 7.94Mn shares, representing 9.39% of shares outstanding.
• The biggest buyers of NPK International for the quarter ending June 2026 included EMERALD ADVISERS, LLC (1.57Mn), MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (1.45Mn), EMERALD MUTUAL FUND ADVISERS TRUST (1.07Mn), Sixth Street Partners Management Company, L.P. (1.03Mn), MILLENNIUM MANAGEMENT LLC (891.04K).
• The biggest sellers of NPK International for the quarter ending June 2026 included Ameriprise Financial Inc (1.14Mn), Prudential Financial Inc (570.25K), Morgan Stanley (563.63K), TWO SIGMA INVESTMENTS, LP (501.4K), Sei Investments Co (418.24K).
• Business Quant data shows the 10 biggest positions in NPK International as of June 2026 are held by BlackRock, Inc. (7.94Mn), Ameriprise Financial Inc (4.49Mn), DIMENSIONAL FUND ADVISORS LP (3.64Mn), VANGUARD CAPITAL MANAGEMENT LLC (3.6Mn), AMERICAN CENTURY COMPANIES INC (3.13Mn), WASATCH ADVISORS LP (2.81Mn), GEODE CAPITAL MANAGEMENT, LLC (2.37Mn), ROYCE & ASSOCIATES LP (2.15Mn), State Street Corp (2.01Mn), PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. (1.74Mn).