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Heartflow, Inc. · 13F filings

HTFL Institutional Ownership

Holdings as of Jun 30, 2026From SEC Form 13FUpdated

Who owns Heartflow, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 194 funds reported holding HTFL at Jun 30, 2026, together owning 86.0% of the company.

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Fund sentiment
Strongly bullish
Strongly bearishNeutralStrongly bullish
  • ▲141 buying vs 61 selling
  • ▲Held by funds +11.2 pts
  • ▲Funds holding +24
  • ▲Superinvestors: 3 added, 1 cut
  • ●Put/call not meaningful

What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.

Funds holding194+24 vs Q1 2026
Held by funds86.0%+11.3 pts
Value held$2.2B74.8M shares
Put/call ratio–market makers left out

Funds holding and ownership

4 quarters
Q3 2025: 89 fundsQ3 '25Q4 2025: 112 fundsQ4 '25Q1 2026: 170 fundsQ1 '26Q2 2026: 194 fundsQ2 '2686.0% owned
Funds holdingHeld by funds %

Quarter over quarter

all 13F filers
Q2 2026This quarterQ1 2026Change
Funds holding194170+14.1%
In funds' top 1024−50.0%
13F shares74.8M65M+15.0%
Held by funds86.0%74.8%+11.3 pts
New positions5069−27.5%
Increased9150+82.0%
Reduced3726+42.3%
Sold out2415+60.0%
Calls (shares)00–
Puts (shares)00–
Put/call ratio–––

Buyers vs sellers

adding or new vs cutting or sold out
Q3 2025: 89 buyingQ3 2025: 0 sellingQ3 '25Q4 2025: 83 buyingQ4 2025: 37 sellingQ4 '25Q1 2026: 119 buyingQ1 2026: 41 sellingQ1 '26Q2 2026: 141 buyingQ2 2026: 61 sellingQ2 '26
Buying 141Selling 61latest quarter

Superinvestors in HTFL

All superinvestors →

Who owns HTFL

share of fund held shares
  • Index and passive funds23.8%
  • Active managers and hedge funds65.2%
  • Banks and brokers10.7%
  • Pensions, insurers and other0.3%

The top 10 holders own 56.9% of all HTFL shares that funds reported. Groups are our own grouping of filers by name.

Filed so far for Q3 2026

50 funds changed their position

🔒 Free account: see all 20.

Top holders

Q2 2026
#FundOf companySharesValueChange
1Bain Capital Life Sciences Investors, LLC9.72%8.4M$248M−2M
2Wellington Management Group LLP9.04%7.9M$231M−4.1M
3BlackRock, Inc.5.98%5.2M$153M+3.7M
4Fmr LLC5.54%4.8M$141M−577K
5Vanguard Portfolio Management LLC4.12%3.6M$105M+1.5M
6Bamco Inc /ny/3.71%3.2M$94.6M−602K
7Vanguard Capital Management LLC3.17%2.8M$80.8M+860K
8Jupiter Topco LLC2.78%2.4M$71M–
9Invesco Ltd.2.64%2.3M$67.4M+386K
10Alliancebernstein L.P.2.21%1.9M$46.8M+700K
🔒 15 more top holders. Create a free account or sign in to see them.
Biggest buyers
Biggest sellers

HTFL institutional ownership FAQ

Who owns the most HTFL stock?

In Q2 2026 13F filings the largest holder of HTFL was Bain Capital Life Sciences Investors, LLC, followed by Wellington Management Group LLP and BlackRock, Inc.. Index fund managers are usually the biggest holders of large companies.

What percentage of HTFL is owned by institutions?

Funds that file 13F reports held 86.0% of HTFL's shares at Jun 30, 2026, compared with 74.8% a quarter earlier. That counts every manager with more than $100 million in US stocks.

Are hedge funds buying HTFL?

In Q2 2026, 141 funds bought HTFL (50 of them new positions) and 61 sold (24 sold out completely). Among well known investors, 3 added and 1 cut. Our fund sentiment for HTFL is strongly bullish.

What is HTFL's institutional put/call ratio?

Too few option positions were reported for a meaningful ratio.

How current is this HTFL ownership data?

13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.

For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.