OneIM Acquisition OIM Institutional Ownership

Updated Oct 10, 2026

OneIM Acquisition Corp. (NASDAQ:OIM) appeared in the 13F filings of 48 institutional investors for the quarter ended June 30, 2026.

• Their combined stake equaled 75.58% of outstanding shares in Q2 2026, up from 62.36% in Q1 2026.
• Total holdings of OIM shares rose 12.03% from Q1 2026.
• Among the 48 holders of OneIM Acquisition, 17 added to their positions, 10 reduced their stakes and 21 left their positions unchanged.
• In total, institutional investors held 21.88Mn shares of OneIM Acquisition at the end of Q2 2026, up 2.35Mn from the prior quarter.
• As of June 30, 2026, Adage Capital Partners GP, L.L.C. held the largest stake in OneIM Acquisition with 2.25Mn shares, or 7.77% of shares outstanding.
• Among existing holders, the largest additions to OneIM Acquisition in Q2 2026 came from Millennium Management LLC (+752K shares), Deutsche Bank AG (+470.23K shares), HGC Investment Management Inc. (+200K shares), BNP Paribas Financial Markets (+170.75K shares) and Periscope Capital Inc. (+50K shares).
• The largest position reductions in OIM for Q2 2026 were by Saba Capital Management, L.P. (-509.78K shares), Healthcare of Ontario Pension Plan Trust Fund (-500K shares), AQR Arbitrage LLC (-164.41K shares), Shaolin Capital Management LLC (-65.55K shares) and Meteora Capital, LLC (-44K shares).
• OneIM Acquisition's 10 largest institutional shareholders as of Q2 2026 were Adage Capital Partners GP, L.L.C. (2.25Mn shares), Sculptor Capital LP (1.46Mn shares), Empyrean Capital Partners, LP (1.36Mn shares), Moore Capital Management, LP (1.1Mn shares), Saba Capital Management, L.P. (1Mn shares), Linden Advisors LP (1Mn shares), Alberta Investment Management Corp (1Mn shares), Millennium Management LLC (952K shares), Verition Fund Management LLC (773.89K shares) and D. E. Shaw & Co., Inc. (750K shares), per Business Quant data.