Heartflow, Inc. (HTFL) Institutional Ownership

Ownership Summary

Heartflow, Inc. (NASDAQ:HTFL) has 108 institutional investors with active 13F positions as of December 2025.

• They owned 103.0% of outstanding stock in December 2025, up from 91.4% the prior quarter.
• They increased total shares held in Heartflow by 25.41% from the prior quarter, while the number of investors in HTFL stayed flat year over year.
• Activity in HTFL broke down as 82 buyers, 13 sellers, and 13 unchanged among 108 total holders.
• Institutional investors collectively held 50.57Mn shares in Heartflow as of December 2025, up by 10.25Mn shares quarter on quarter, and with no net change year over year.
• As of December 31, 2025, the biggest holder of Heartflow is WELLINGTON MANAGEMENT GROUP LLP at 11.98Mn shares, representing 24.4% of shares outstanding.
• Leading buyers of Heartflow shares for the quarter ending December 2025 were WELLINGTON MANAGEMENT GROUP LLP (6.09Mn), Janus Henderson Group Plc (3.5Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (2.05Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.89Mn), BAMCO INC /NY/ (1.52Mn).
• The largest sales of HTFL for the quarter ending December 2025 came from Bain Capital Life Sciences Investors, LLC (2.0Mn), BAILLIE GIFFORD & CO (1.92Mn), Schusterman Interests, LLC (1.68Mn), Capricorn Investment Group LLC (1.4Mn), CITADEL ADVISORS LLC (492.29K).
• Heartflow's 10 largest shareholders as of December 2025 include WELLINGTON MANAGEMENT GROUP LLP (11.98Mn), Bain Capital Life Sciences Investors, LLC (10.45Mn), FMR LLC (5.4Mn), Janus Henderson Group Plc (4.36Mn), BAMCO INC /NY/ (3.83Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (2.05Mn), Invesco Ltd. (1.91Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.89Mn), BlackRock, Inc. (1.46Mn), UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC (1.41Mn) per Business Quant data.