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AFTER HRS · 18:15 ET
Market ClerkRecap
Wed Oct 21 · after hours2 signals today106 insider buys this week · $305.5MCIRO short report next: Oct 31The week ahead

HTFL

Heartflow, Inc.
NASDAQ · HEALTH CARE · SURGICAL & MEDICAL INSTRUMENTS & APPARATUS
55.82
+0.23 +0.41%
USD · close Oct 21

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Short interest

FINRA · TWICE MONTHLY
Report dateShares shortChange% of shares outAvg daily volumeDays to cover
2026-08-316.1M−711K6.98%2.4M2.5
2026-08-146.8M−68K7.80%1.8M3.9
2026-07-316.8M+974K7.88%1M6.6
2026-07-155.9M+696K6.75%1.4M4.2

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