Heartflow, Inc. (HTFL) Institutional Ownership

Ownership Summary

Heartflow, Inc. (NASDAQ:HTFL) showed up in the 13F filings of 167 institutional investors as of March 2026.

• These investors collectively held 182.9% of Heartflow's outstanding shares in March 2026, up from 137.6% in December 2025.
• Their total shares held in HTFL increased 39.08% from the prior quarter, while the number of investors in Heartflow stayed flat year over year.
• Of these 167 funds, 124 grew their exposure to Heartflow, 25 cut back, and 18 maintained positions.
• Institutional investors collectively held 67.42Mn shares in Heartflow as of March 2026, up by 18.95Mn shares quarter on quarter, and with no net change year over year.
• WELLINGTON MANAGEMENT GROUP LLP holds the largest position in HTFL at 11.98Mn shares as of March 31, 2026, or 32.51% of shares outstanding.
• Leading buyers of Heartflow shares for the quarter ending March 2026 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 sellers of Heartflow for the quarter ending March 2026 were 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).
• Per Business Quant data, the top 10 holders of Heartflow for the quarter ending March 2026 are 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).