BlackRock
HTFL

BlackRock’s Heartflow Inc HTFL Stock Holding History

BlackRock’s Portfolio HTFL Stock Details HTFL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$35.6M Buy
1,462,584
+120,445
+9% +$3.27M ﹤0.01% 2734
2025
Q4 		$39.1M Buy
1,342,139
+1,032,570
+334% +$33.2M ﹤0.01% 2684
2025
Q3 		$10.4M Buy
+309,569
New +$9.95M ﹤0.01% 3436

Other funds holding HTFL

Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.11B AUM 171.34% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return

BlackRock's HTFL Position: Q1 2026 in Review

BlackRock increased its Heartflow Inc (HTFL) stake by 9% in Q1 2026, buying an estimated $3.27M and bringing the position to 1,462,584 shares worth $35.6M. The position accounts for ﹤0.01% of the portfolio, ranked #2734.

BlackRock first reported a position in HTFL in Q3 2025 and has held it in 3 quarters since. The position peaked at $39.1M in Q4 2025. 169 funds tracked by Wall St. Rank hold HTFL as of Q1 2026.

  • BlackRock held 1,462,584 shares of Heartflow Inc worth $35.6M as of Q1 2026.
  • BlackRock bought 120,445 Heartflow Inc shares in Q1 2026, an estimated $3.27M.
  • Heartflow Inc made up ﹤0.01% of BlackRock's portfolio in Q1 2026, its #2734 holding.
  • BlackRock first reported a position in Heartflow Inc in Q3 2025 and has held it in 3 quarters since.
  • BlackRock's Heartflow Inc position peaked at $39.1M in Q4 2025.
  • 169 funds tracked by Wall St. Rank held Heartflow Inc as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.