Investar Holding ISTR Institutional Ownership

Updated Oct 11, 2026

Investar Holding Corp (NASDAQ:ISTR) was reported as a holding by 122 institutional investors in 13F filings for the quarter ended June 30, 2026.

• Together they owned 58.31% of the outstanding stock in Q2 2026, up from 55.44% a quarter earlier.
• Total shares held in ISTR rose 5.39% from Q1 2026; the number of holders rose 37.08% from Q2 2025.
• Of the 122 holders, 78 added to their positions, 28 reduced their stakes and 16 left their positions unchanged in Q2 2026.
• Institutional investors held 8.04Mn shares of Investar Holding in total at the end of Q2 2026, up 411.06K from the prior quarter and up 2.13Mn from a year earlier.
• BlackRock, Inc. held the largest position in ISTR at 1.26Mn shares as of June 30, 2026, or 9.11% of shares outstanding.
• The largest position increases in ISTR for Q2 2026 were by Two Sigma Investments, LP (+219.89K shares), Citadel Advisors LLC (+217.66K shares), BlackRock, Inc. (+153.82K shares), JPMorgan Chase & Co (+87.04K shares) and State Street Corp (+85.93K shares).
• Holders that trimmed the most shares of Investar Holding in Q2 2026 while keeping a position were Fourthstone LLC (-504.96K shares), HighTower Advisors, LLC (-137.51K shares), AllianceBernstein L.P. (-115.86K shares), Bank of New York Mellon Corp (-77.32K shares) and Vanguard Capital Management LLC (-42.87K shares).
• Investar Holding's 10 largest institutional shareholders as of Q2 2026 were BlackRock, Inc. (1.26Mn shares), Vanguard Capital Management LLC (545.55K shares), Dimensional Fund Advisors LP (516.51K shares), Geode Capital Management, LLC (331.68K shares), Fourthstone LLC (322.43K shares), Banc Funds Co LLC (306.9K shares), Royce & Associates LP (292.09K shares), AllianceBernstein L.P. (285.23K shares), Citadel Advisors LLC (267.4K shares) and State Street Corp (262.94K shares), per Business Quant data.