Iterum Therapeutics plc (ITRM) Institutional Ownership

Ownership Summary

A total of 17 institutions have reported a stake in Iterum Therapeutics plc (NASDAQ:ITRM) as of December 2025, according to recent 13F filings with the SEC.

• The percentage of Iterum Therapeutics owned by institutions changed from 3.5% in September 2025 to 4.3% in December 2025, marking a slight up trend.
• On a quarter-over-quarter basis, institutional holdings shifted by 212.91%, with a year-over-year a decrease of 29.17% in the count of filers.
• Of these 17 institutional investors, 8 increased their holdings in Iterum Therapeutics, while 2 of them reduced positions, and 7 investors maintained their exposure.
• The total number of shares held by institutions in Iterum Therapeutics increased to 1.64Mn as of December 2025, a net change of up by 1.12Mn shares quarter on quarter, and up 412.95K shares year over year.
• Apollon Financial, LLC continues to be the largest institutional holder of Iterum Therapeutics as of December 31, 2025, with a position of 630.25K shares, representing 1.66% of the company's outstanding stock.
• Among the most significant buyers of Iterum Therapeutics during December 2025 were Apollon Financial, LLC (380.00K), JANE STREET GROUP, LLC (274.89K), Alchemi Wealth, LLC (268.89K), UBS Group AG (111.32K), Krilogy Financial LLC (40.00K).
• Leading sellers of Iterum Therapeutics stock in December 2025 included SG Americas Securities, LLC (4.04K), MORGAN STANLEY (2.90K).
• The top 10 institutional holders of Iterum Therapeutics for the quarter ending December 2025 included Apollon Financial, LLC (630.25K), JANE STREET GROUP, LLC (289.41K), Alchemi Wealth, LLC (268.89K), CAPTRUST FINANCIAL ADVISORS (138.60K), UBS Group AG (119.95K), Gen-Wealth Partners Inc (84.63K), Krilogy Financial LLC (40.00K), Ground Swell Capital, LLC (20.48K), Sanctuary Advisors, LLC (20.00K), SG Americas Securities, LLC (12.78K).