HealthCor files 13G: 2.08M Heartflow shares (2.4%)

Heartflow, Inc. ownership disclosure: HealthCor Partners Management, L.P. reports beneficial ownership of 2,082,014 shares of common stock, representing 2.4% of the class.

Rhea-AI Filing Summary

Heartflow, Inc. ownership disclosure: HealthCor Partners Management, L.P. reports beneficial ownership of 2,082,014 shares of common stock, representing 2.4% of the class. The filing breaks this down as HealthCor Partners Fund, L.P. 1,248,939 shares (1.5%) and HealthCor Partners Fund II, L.P. 833,075 shares (1.0%). The filing notes a distribution by HCPCIV 1, LLC of 4,615,542 shares on March 24, 2026.

Insights

Governance Specialist

Disclosure shows passive/managed ownership structure and a recent fund distribution.

The filing lists shared voting and dispositive power for HealthCor Partners Management, L.P. over 2,082,014 shares, allocated across two private funds. The structure reflects manager control rather than sole personal voting power.

Watch subsequent filings for any changes in voting power or additional distributions tied to the March 24, 2026 distribution event.

Market Structure Analyst

Fund-level distribution materially changed visible holdings for investors.

The report documents a distribution of 4,615,542 shares by HCPCIV 1, LLC on March 24, 2026, which the filing cites when describing prior aggregate holdings. This distribution altered the reported percentage ownership figures.

Further position disclosures or trading activity filings may clarify how those distributed shares are held or transferred.

Key Figures

Manager beneficial ownership: 2,082,014 shares HealthCor Partners Fund holdings: 1,248,939 shares HealthCor Partners Fund II holdings: 833,075 shares +2 more

5 metrics

Manager beneficial ownership 2,082,014 shares Reported for HealthCor Partners Management, L.P.

HealthCor Partners Fund holdings 1,248,939 shares HealthCor Partners Fund, L.P. (1.5%)

HealthCor Partners Fund II holdings 833,075 shares HealthCor Partners Fund II, L.P. (1.0%)

HCPCIV 1, LLC distribution 4,615,542 shares Distributed to fund investors on March 24, 2026

Prior aggregate holdings reported 6,697,556 shares HealthCor Partners Management prior to the distribution (7.8%)

Key Terms

Beneficially owned, Shared dispositive power, Schedule 13G

3 terms

Beneficially owned regulatory

"BENEFICIALLY OWNED DUE TO MANAGING THE TWO FUNDS BELOW."

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Shared dispositive power regulatory

"SHARED DISPOSITIVE POWER 2,082,014.00"

Schedule 13G regulatory

"Item 1. (a) Name of issuer: Heartflow, Inc."

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does HealthCor Partners Management hold in Heartflow (HTFL)?

HealthCor Partners Management reports beneficial ownership of 2,082,014 shares, equal to 2.4% of Heartflow's common stock. This stake reflects shared voting and dispositive power held through the two funds named in the filing.

How are the 2,082,014 shares allocated between HealthCor funds?

The filing shows HealthCor Partners Fund, L.P. holds 1,248,939 shares (1.5%) and HealthCor Partners Fund II, L.P. holds 833,075 shares (1.0%), together totaling the manager's reported 2,082,014 shares.

When did HCPCIV 1, LLC distribute shares and how many were distributed?

The filing states that HCPCIV 1, LLC distributed 4,615,542 shares to fund investors on March 24, 2026, an event cited as affecting prior ownership calculations disclosed in the form.

Does HealthCor report sole voting or dispositive power over these shares?

No. The filing indicates 0 sole voting power and 0 sole dispositive power. Reported authority is shared voting and dispositive power over the listed shares across the manager and the two funds.

What percent of Heartflow did HealthCor hold prior to the distribution?

The filing states that prior to the distribution by HCPCIV 1, LLC, HealthCor Partners Management held 6,697,556 shares, representing 7.8% of the share class before that distribution event.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/31/2026 - 05:42 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Heartflow, Inc.

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

42238D107

(CUSIP Number)

03/24/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 42238D107

1

Names of Reporting Persons

HealthCor Partners Management LP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,082,014.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,082,014.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,082,014.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

2.4 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 42238D107

1

Names of Reporting Persons

HealthCor Partners Fund LP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,248,939.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,248,939.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,248,939.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

1.5 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: PRIVATE FUND MANAGED BY HEALTHCOR PARTNERS MANAGEMENT, LP

SCHEDULE 13G

CUSIP Number(s): 42238D107

1

Names of Reporting Persons

HealthCor Partners Fund II, L.P.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 833,075.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 833,075.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

833,075.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

1.0 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: PRIVATE FUND MANAGED BY HEALTHCOR PARTNERS MANAGEMENT LP

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Heartflow, Inc.
(b)	Address of issuer's principal executive offices: 331 E EVELYN AVENUE, MOUNTAIN VIEW, CALIFORNIA, 94041
Item 2.
(a)	Name of person filing: HEALTHCOR PARTNERS MANAGEMENT, LP HEALTHCOR PARTNERS FUND, L.P. HEALTHCOR PARNERS FUND II, L.P.
(b)	Address or principal business office or, if none, residence: C/O HEALTHCOR PARTNERS MANAGEMENT, L.P. 186 SEVEN FARMS DRIVE, SUITE F-371 DANIEL ISLAND, SOUTH CAROLINA 29492
(c)	Citizenship: HEALTHCOR PARTNERS MANAGEMENT, LP - DELAWARE HEALTHCOR PARTNERS FUND, L.P. - DELAWARE HEALTHCOR PARNERS FUND II, L.P. - DELAWARE
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP Number(s): 42238D107
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: HEALTHCOR PARTNERS MANAGEMENT, LP - 2,082,014 (BENEFICIALLY OWNED DUE TO MANAGING THE TWO FUNDS BELOW.) HEALTHCOR PARTNERS FUND, L.P. - 1,248,939 SHARES HEALTHCOR PARNERS FUND II, L.P. - 833,075 SHARES PRIOR TO THE DISTRIBUTION OF HCPCIV 1, LLC DISTRIBUTION OF THE FUND'S 4,615,542 SHARES, HEALTHCOR PARTNERS MANAGMENET, LP HELD 6,697,556 SHARES.
(b)	Percent of class: HEALTHCOR PARTNERS MANAGEMENT, LP - 2.4% HEALTHCOR PARTNERS FUND, L.P. - 1.5% HEALTHCOR PARNERS FUND II, L.P. - 1% PRIOR TO THE DISTRIBUTION OF HCPCIV 1, LLC DISTRIBUTION OF THE FUND'S 4,615,542 SHARES, HEALTHCOR PARTNERS MANAGMENET, LP HELD 7.8% OF SHARE CLASS.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: HEALTHCOR PARTNERS MANAGEMENT, LP - SHARED POWER TO VOTE 2,082,014 WITH THE FUNDS LISTED BELOW HEALTHCOR PARTNERS FUND, L.P. - 1,248,939 SHARES HEALTHCOR PARNERS FUND II, L.P. - 833,075 SHARES
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: HEALTHCOR PARTNERS MANAGEMENT, LP - SHARED POWER TO DISPOSE OF 2,082,014 WITH THE FUNDS LISTED BELOW HEALTHCOR PARTNERS FUND, L.P. - 1,248,939 SHARES HEALTHCOR PARNERS FUND II, L.P. - 833,075 SHARES HCPCIV 1, LLC DISTRIBUTED 4,615,542 SHARES TO FUND INVESTORS ON MARCH 24, 2026
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

HealthCor Partners Management LP

Signature:	ELIZABETH M. LILLEY
Name/Title:	CHIEF COMPLIANCE OFFICER
Date:	03/31/2026

HealthCor Partners Fund LP

Signature:	ELIZABETH M. LILLEY
Name/Title:	CHIEF COMPLIANCE OFFICER
Date:	03/31/2026

HealthCor Partners Fund II, L.P.

Signature:	ELIZABETH M. LILLEY
Name/Title:	CHIEF COMPLIANCE OFFICER
Date:	03/31/2026