Security key
42238D107
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 64,981,937
- Total 13F value
- $1,588,418,037
- Share change
- +9,789,840
- SEC-reported price per share
- $24.33
- Number of holders
- 167
- Value change
- +$235,723,768
- Number of buys
- 115
- Number of sells
- 40
- Shares outstanding
- 86,288,121
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
167
Top holders
10
HTFL full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Previous quarter: Q4 2025
Heartflow, Inc. SEC filings
Heartflow, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 42238D107
Recent filing periods:
Ownership snapshot
Top reported holders of HTFL - Heartflow, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BCLS Fund III Investments...
Disclosed value leader
Bain Capital Life Science...
Comparable rows
15/15
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 12%
13D/G row: BCLS Fund III Investments, LP
Showing 1-6 of 15 holder rows.
Quick read
BCLS Fund III Investments, LP leads the comparable SEC ownership view at 12%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BCLS Fund III Investments, LP's linked filing trail.
Comparable ownership
Top 5
BCLS Fund III Investments, LP
12%
Hayfin Special Opportunities Fund...
6.2%
FMR LLC
5.7%
HealthCor Partners Management LP
2.4%
Bain Capital Life Sciences Invest...
14%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BCLS Fund III Investments, LP |
13D/G
|
12%
|
$282,936,119
10,448,158 shares
|
-$54,160,000 | 31 Mar 2026 |
| Hayfin Special Opportunities Fund II LP |
13D/G
Hayfin Management Holdings Limited
|
6.2%
|
$177,834,666
5,283,264 shares
|
$0 | 30 Sep 2025 |
| FMR LLC |
13D/G
13F
Company
|
5.7%
|
$159,219,679
4,730,234 shares
|
$0 | 30 Sep 2025 |
| HealthCor Partners Management LP |
13D/G
3/4/5
10%+ Owner
|
2.4%
|
$48,261,085
2,082,014 shares
|
-$106,988,264 | 24 Mar 2026 |
| Bain Capital Life Sciences Investors, LLC |
13F
Company
|
14%
|
$362,863,806
12,448,158 shares
|
— | 31 Dec 2025 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
6.8%
|
$171,812,140
5,894,070 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
167
Shares
64,981,937
Rows available
167
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
112
Q1 2026 holders
167
Holder diff
55
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend