Latest Period
Q1 2026
Security Snapshot
Heartflow, Inc. - Common Stock, $0.001 par value per share (HTFL) Institutional Ownership
CUSIP: 42238D107
13F Institutional Holders and Ownership History from Q3 2025 to Q1 2026
Institutions Reporting
166
Shares (Excl. Options)
64,979,594
Price
$24.33
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- Type / Class
- Equity / Common Stock, $0.001 par value per share
- Symbol
- HTFL on Nasdaq
- Shares outstanding
- 85,781,264
- Price per share
- $30.44
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 64,979,594
- Total reported value
- $1,588,361,032
- % of total 13F portfolios
- 0.01%
- Share change
- +9,787,497
- Value change
- +$235,666,763
- Number of holders
- 166
- Price from insider filings
- $30.44
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- HTFL - Heartflow, Inc. - Common Stock, $0.001 par value per share is tracked under CUSIP 42238D107.
- 166 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 112 to 166 between Q4 2025 and Q1 2026.
- Reported value moved from $1,525,456,369 to $1,588,361,032.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 166 institutions filings for Q1 2026.
Security key
42238D107
Latest holder period
Q1 2026
13F holders
166
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
HTFL full holder history
Heartflow, Inc. SEC filings
Heartflow, Inc. company facts
Heartflow, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 42238D107:
Significant Owners of Heartflow, Inc. - Common Stock, $0.001 par value per share (HTFL) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP | 14% | +101% | $268,108,845 | +$135,551,211 | 11,921,247 | +102% | Wellington Management Group LLP | 27 Feb 2026 |
| BCLS Fund III Investments, LP | 12% | -18% | $282,936,119 | -$54,160,000 | 10,448,158 | -16% | BCLS Fund III Investments, LP | 31 Mar 2026 |
| Hayfin Special Opportunities Fund II LP | 6.2% | $177,834,666 | 5,283,264 | Hayfin Management Holdings Limited | 30 Sep 2025 | |||
| FMR LLC | 5.7% | $159,219,679 | 4,730,234 | FMR LLC | 30 Sep 2025 | |||
| HealthCor Partners Management LP | 2.4% | -69% | $48,261,085 | -$106,988,264 | 2,082,014 | -69% | HealthCor Partners Management LP | 24 Mar 2026 |
As of 31 Mar 2026, 166 institutional investors reported holding 64,979,594 shares of Heartflow, Inc. - Common Stock, $0.001 par value per share (HTFL). This represents 76% of the company’s total 85,781,264 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of Heartflow, Inc. - Common Stock, $0.001 par value per share (HTFL) together control 64% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP | 14% | 11,982,283 | +103% | 0.05% | $291,528,944 |
| Bain Capital Life Sciences Investors, LLC | 12% | 10,448,158 | -16% | 23% | $254,203,684 |
| FMR LLC | 6.3% | 5,397,802 | +31% | 0.01% | $131,328,537 |
| BAMCO INC /NY/ | 4.5% | 3,827,531 | +66% | 0.28% | $93,123,829 |
| JANUS HENDERSON GROUP PLC | 2.5% | 2,180,976 | +152% | 0.03% | $53,063,035 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.4% | 2,045,938 | 0% | 0% | $49,777,672 |
| Invesco Ltd. | 2.2% | 1,913,090 | +231% | 0.01% | $46,545,480 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.2% | 1,893,495 | 0% | 0% | $46,068,733 |
| BlackRock, Inc. | 1.7% | 1,462,584 | +9% | 0% | $35,584,668 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1.6% | 1,414,828 | -1.1% | 0.01% | $34,422,765 |
| ALLIANCEBERNSTEIN L.P. | 1.4% | 1,224,326 | +12% | 0.01% | $35,689,103 |
| MILLENNIUM MANAGEMENT LLC | 1.3% | 1,093,417 | +1513% | 0.02% | $26,602,836 |
| BAILLIE GIFFORD & CO | 1.3% | 1,084,652 | -64% | 0.03% | $26,389,583 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 1% | 892,093 | -29% | 1% | $21,704,623 |
| MORGAN STANLEY | 0.99% | 851,932 | +14% | 0% | $20,727,539 |
| FRANKLIN RESOURCES INC | 0.93% | 793,721 | +16% | 0% | $19,311,232 |
| EVENTIDE ASSET MANAGEMENT, LLC | 0.88% | 756,956 | +50% | 0.3% | $18,416,429 |
| CITADEL ADVISORS LLC | 0.88% | 756,605 | -39% | 0.01% | $18,408,200 |
| VOYA INVESTMENT MANAGEMENT LLC | 0.85% | 727,667 | +218% | 0.02% | $17,704,138 |
| Ensign Peak Advisors, Inc | 0.8% | 690,466 | -1.5% | 0.03% | $16,799,038 |
| NEXT CENTURY GROWTH INVESTORS LLC | 0.76% | 652,969 | 1.2% | $15,886,735 | |
| 12 West Capital Management LP | 0.75% | 640,000 | 2.6% | $15,571,200 | |
| FRED ALGER MANAGEMENT, LLC | 0.74% | 638,306 | +45% | 0.07% | $15,529,985 |
| Rock Springs Capital Management LP | 0.67% | 572,500 | +106% | 0.82% | $13,928,925 |
| Champlain Investment Partners, LLC | 0.66% | 567,424 | 0.18% | $13,805,426 |