$HTFL

$57.82 +$0.81 (1.43%) Close

$HTFL Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 87.0M shares outstanding

Who owns HTFL?

By type of holder

Institutions 86.0% Insiders 14.0% Everyone else 0.0%

Concentration Top 10 holders own 55.8%

Wellington Management Group LLP 9.0% · Bain Capital Life Sciences Investors, LLC 9.7%

Institutional ownership

86.0%

+11.3 pts vs last qtr

Institutional holders

190

+22 vs last qtr

Net shares bought

+9.8M

by institutions in Q2 2026

New / sold out

51 / 29

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +3.7M
Jupiter Topco LLC NEW +2.4M

Biggest sellers in Q2 2026

Wellington Management Group LLP −4.1M
Janus Henderson Group PLC SOLD OUT −2.2M

Who is planning to sell?

Notices of proposed sale, last 12 months

$41.6M

37 notices from 6 people

Shares covered

1.1M

1.26% of the company

Arranged in advance

65%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Farquhar John C.M. Officer 10b5-1 $12.9M
Rogers Campbell Member of immediate family of any of the foregoing 10b5-1 $8.62M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2023–FY2025

+654.4%

+174.66% a year

Each share's claim on the business

−86.7%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$228K vs $36.1M

over 3 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years0% Under 1 year100%

Quarterly turnover

29.1%

of institutional shares changed hands

Top 10 managers, median time held

3 quarters

Super Investors

Investment managers reporting HTFL on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
WM Wellington Management Group LLP	7.9M	9.04%	−4.1M (−34.4%)	Q3 '25	0.0%
Shares held by quarter Peak holding12.0M (Q1'26) Change over 8 quarters+7.9M Share of the company9.040% Wellington Management Group LLP's full portfolio →
BC Bain Capital Life Sciences Investors, LLC	8.4M	9.72%	−2.0M (−19.1%)	Q3 '25	14.7%
Shares held by quarter Peak holding12.4M (Q3'25) Change over 8 quarters+8.4M Share of the company9.720% Bain Capital Life Sciences Investors, LLC's full portfolio →

Wellington Management Group LLP

7.9M

% of company

9.04%

Change vs last qtr

−4.1M (−34.4%)

Held since

Q3 '25

Bain Capital Life Sciences Investors, LLC

8.4M

% of company

9.72%

Change vs last qtr

−2.0M (−19.1%)

Held since

Q3 '25

28 more super investors behind a free account

See every manager holding Heartflow, Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting HTFL on Form N-PORT; together they hold 40.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VH Vanguard Health Care Fund Vanguard Specialized Funds	$146M	5.8M	6.67%	0.38%	July 31, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$72.4M	2.5M	2.84%	0.00%	June 30, 2026

Vanguard Health Care Fund

Vanguard Specialized Funds

Position value

$146M

% of company

6.67%

% of the fund

0.38%

As of

July 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$72.4M

% of company

2.84%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Heartflow, Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
LJ Lightcap Jeffrey C Insider	7.0M	8.04%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company8.040% Lightcap Jeffrey C's insider activity →
TC Tansey Casey M Insider	3.2M	3.67%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company3.670% Tansey Casey M's insider activity →

Lightcap Jeffrey C

Insider

7.0M

% of company

8.04%

Change vs last qtr

—

Held since

—

Tansey Casey M

Insider

3.2M

% of company

3.67%

Change vs last qtr

—

Held since

—

7 more holders behind a free account

See every insider and 5%+ holder of Heartflow, Inc.

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