Owens Corning OC Institutional Ownership

Updated Oct 21, 2026

Owens Corning (NYSE:OC) was reported as a holding by 687 institutional investors in 13F filings for the quarter ended June 30, 2026.

• Total holdings of Owens Corning shares rose 4.25% from Q1 2026, and the number of holders fell 2.00% from Q2 2025.
• Of the 687 holders, 365 added to their positions, 220 reduced their stakes and 102 left their positions unchanged in Q2 2026.
• Institutional investors held 83.41Mn shares of Owens Corning in total at the end of Q2 2026, up 3.4Mn from the prior quarter and up 7.49Mn from a year earlier.
• BlackRock, Inc. led 13F holders of OC with 8.81Mn shares as of June 30, 2026.
• The biggest increases in OC positions during Q2 2026 came from AQR Capital Management LLC (+1.14Mn shares), Point72 Asset Management, L.P. (+882.04K shares), First Trust Advisors LP (+720.49K shares), Marshall Wace, LLP (+239.58K shares) and American Century Companies Inc (+213.02K shares).
• Holders that trimmed the most shares of Owens Corning in Q2 2026 while keeping a position were Millennium Management LLC (-527.99K shares), Two Sigma Investments, LP (-442.85K shares), BlackRock, Inc. (-396.31K shares), Arrowstreet Capital, Limited Partnership (-320.24K shares) and SG Americas Securities, LLC (-319.58K shares).
• Owens Corning's 10 largest institutional shareholders as of Q2 2026 were BlackRock, Inc. (8.81Mn shares), Vanguard Portfolio Management LLC (5.47Mn shares), AQR Capital Management LLC (3.68Mn shares), Vanguard Capital Management LLC (3.63Mn shares), State Street Corp (3.1Mn shares), Dimensional Fund Advisors LP (2.95Mn shares), First Trust Advisors LP (2.9Mn shares), American Century Companies Inc (2.26Mn shares), UBS Asset Management Americas (2.22Mn shares) and Davis Selected Advisers (2.08Mn shares), per Business Quant data.