HTFL

Heartflow Inc
Health CareUSCUSIP 42238D107◍ Confluence graph
Tracked 13F Holders
165
-78 QoQ
13F Value (tracked)
$1.3B
Insider Net · 180d
-$71.5M
0↑ 3↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)40 adding · 13 trimming
Insider net (180d)-$71.5M

Who owns HTFL?

165 tracked 13F filers

165 tracked 13F filers disclose a position in HTFL as of the latest SEC 13F filings, a combined $1.3B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
#FundPosition valueSharesLast moveAs ofHistory
1Bain Capital Life Sciences Investors, LLC
$247.9M
8.4M
−19%
Reduced · −2.0M sh
Q2 2026
2FMR LLC
$131.3M
5.4M
+31%
Added · +1.3M sh
Q1 2026
3JANUS HENDERSON GROUP PLC
$53.1M
2.2M
+152%
Added · +1.3M sh
Q1 2026
4VANGUARD PORTFOLIO MANAGEMENT LLC
$49.8M
2.0M
First observed position
No prior filed position
Q1 2026
5VANGUARD CAPITAL MANAGEMENT LLC
$46.1M
1.9M
First observed position
No prior filed position
Q1 2026
6SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC
$49.7M
1.7M
+90%
Added · +803K sh
Q2 2026
7STATE STREET CORP
$43.3M
1.5M
+225%
Added · +1.0M sh
Q2 2026
8BlackRock, Inc.
$35.6M
1.5M
+9.0%
Added · +120K sh
Q1 2026
9UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME
$34.4M
1.4M
−1.1%
Reduced · −16K sh
Q1 2026
10GEODE CAPITAL MANAGEMENT, LLC
$39.9M
1.4M
+151%
Added · +819K sh
Q2 2026
11ALLIANCEBERNSTEIN L.P.
$35.7M
1.2M
+12%
Added · +135K sh
Q1 2026
12MILLENNIUM MANAGEMENT LLC
$26.6M
1.1M
16×
Added · +1.0M sh
Q1 2026
13BAILLIE GIFFORD & CO
$26.4M
1.1M
−64%
Reduced · −1.9M sh
Q1 2026
1412 West Capital Management LP
$26.5M
903K
+41%
Added · +263K sh
Q2 2026
15MORGAN STANLEY
$20.7M
852K
+14%
Added · +106K sh
Q1 2026
16FRANKLIN RESOURCES INC
$19.3M
794K
+16%
Added · +109K sh
Q1 2026
17EVENTIDE ASSET MANAGEMENT, LLC
$18.4M
757K
+50%
Added · +251K sh
Q1 2026
18CITADEL ADVISORS LLC
$18.4M
757K
−39%
Reduced · −492K sh
Q1 2026
19Champlain Investment Partners, LLC
$21.5M
734K
+29%
Added · +166K sh
Q2 2026
20VOYA INVESTMENT MANAGEMENT LLC
$17.7M
728K
+218%
Added · +499K sh
Q1 2026
21NEXT CENTURY GROWTH INVESTORS LLC
$19.7M
671K
+2.8%
Added · +18K sh
Q2 2026
22FRED ALGER MANAGEMENT, LLC
$15.5M
638K
+45%
Added · +198K sh
Q1 2026
23XXEC, Inc.
$18.4M
599K
+115%
Added · +321K sh
Q2 2026
24Catalio Capital Management, LP
$17.1M
583K
+44%
Added · +179K sh
Q2 2026
25Rock Springs Capital Management LP
$16.8M
574K
+0.2%
Added · +1K sh
Q2 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is HTFL being bought or sold by institutions?

Last quarter, 18 funds opened a new position in HTFL and 22 added to an existing one, while 13 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
18
funds
Added
22
funds
Reduced
13
funds
Exited
0
funds

Funds that own HTFL also own

CompanyCo-held byCombined value
NVIDIA CORPNVDA79 funds$238.0B
MICROSOFT CORPMSFT79 funds$155.8B
AMAZON.COM INCAMZN79 funds$119.8B
ALPHABET INC-CL AGOOGL77 funds$82.3B
META PLATFORMS INC-CLASS AMETA77 funds$68.8B
BROADCOM INCAVGO75 funds$92.8B
APPLE INCAAPL74 funds$168.2B
INTUITIVE SURGICAL INCISRG74 funds$18.4B
ALPHABET INC-CL CGOOG73 funds$79.1B
ELI LILLY & COLLY73 funds$46.5B
ADVANCED MICRO DEVICESAMD73 funds$19.2B
COSTCO WHOLESALE CORPCOST73 funds$18.3B

Ranked by how many of HTFL's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$71.5M
3 insiders
Net
-$71.5M
20 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Aug 21, 2026Farquhar John C.M.Chief Executive Officer, DirectorSell (S)27K$1.4M
Aug 18, 2026Farquhar John C.M.Chief Executive Officer, DirectorSell (S)33K$1.5M
Aug 17, 2026Rogers CampbellChief Medical OfficerSell (S)9K$380K
Aug 14, 2026Farquhar John C.M.Chief Executive Officer, DirectorSell (S)16K$608K
Aug 10, 2026Farquhar John C.M.Chief Executive Officer, DirectorSell (S)23K$639K
Jul 15, 2026Rogers CampbellChief Medical OfficerSell (S)9K$237K
Jul 10, 2026Farquhar John C.M.Chief Executive Officer, DirectorSell (S)23K$626K
Jun 24, 2026Farquhar John C.M.Chief Executive Officer, DirectorSell (S)39K$1.4M
Jun 10, 2026Farquhar John C.M.Chief Executive Officer, DirectorSell (S)23K$643K
May 18, 2026Rogers CampbellChief Medical OfficerSell (S)9K$261K
May 11, 2026Farquhar John C.M.Chief Executive Officer, DirectorSell (S)23K$657K
Apr 30, 2026Bain Capital Life Sciences Investors, LLC10% OwnerSell (S)893K$26.0M

Institutional ownership over time

71 funds-4 since Q3 2025
075149Q3 2025Q4 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $532.5M

Recent filings

15 shown

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Connected entities for HTFL

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Ask your agent what changed in HTFL

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/HTFL/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for HTFL.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for HTFL. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.