SEC 13F Intelligence

Rock Springs Capital Management LP / HTFL

Rock Springs Capital Management LP’s Heartflow Inc Position

Does Rock Springs Capital Management LP own Heartflow Inc (HTFL)? Yes — 572.5K shares worth $14M (+0.82% of its 13F portfolio) as of Q1 2026, up from 277.7K shares the prior filed quarter.

Position Value
$14M
Q1 2026
Shares
572.5K
% of Portfolio
+0.82%
Quarters Held
3
currently held

Position History HTFL

Reported value by quarter
Q3 ’25: $8MQ3 ’25Q4 ’25: $8MQ4 ’25Q1 ’26: $14MQ1 ’26filingsflow.com
QuarterSharesValue% of Portfolio
Q1 2026572.5K$14M+0.82%
Q4 2025277.7K$8M+0.42%
Q3 2025250.0K$8M+0.49%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Rock Springs Capital Management LP’s full portfolio or all institutional holders of HTFL.