$GH

$173.25 +$4.17 (2.47%) Close

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

Ownership

13F as of Q2 2026 · 134.2M shares outstanding

Who owns GH?

By type of holder

Institutions 99.2% Insiders 0.8% Everyone else 0.0%

Concentration Top 10 holders own 38.3%

BlackRock, Inc. 5.7% · Price T Rowe Associates Inc /MD/ 4.9%

Institutional ownership

99.2%

-0.8 pts vs last qtr

Institutional holders

597

+111 vs last qtr

Net shares bought

−2.1M

by institutions in Q2 2026

New / sold out

159 / 48

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Jane Street Group, LLC +1.8M
Ameriprise Financial Inc +1.7M

Biggest sellers in Q2 2026

BlackRock, Inc. −3.9M
Baillie Gifford & Co −1.6M

Who is planning to sell?

Notices of proposed sale, last 12 months

$195M

59 notices from 16 people

Shares covered

1.6M

1.18% of the company

Arranged in advance

42%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Talasaz AmirAli Officer $82.1M
Eltoukhy Helmy Officer $22M

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, FY2019–FY2025

+38.4%

+5.56% a year

Each share's claim on the business

−27.7%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$45M vs $805M

over 7 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+ years54% 3–5 years13% 1–3 years16% Under 1 year16%

Quarterly turnover

15.5%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting GH on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	7.6M	5.68%	−3.9M (−34.0%)	≤2021	0.0%
Shares held by quarter Peak holding11.7M (Q4'24) Change over 8 quarters−3.8M Share of the company5.680% BlackRock, Inc.'s full portfolio →
PT Price T Rowe Associates Inc /MD/	6.5M	4.85%	−508.7K (−7.2%)	≤2021	0.1%
Shares held by quarter Peak holding7.0M (Q1'26) Change over 8 quarters+5.7M Share of the company4.850% Price T Rowe Associates Inc /MD/'s full portfolio →

BlackRock, Inc.

7.6M

% of company

5.68%

Change vs last qtr

−3.9M (−34.0%)

Held since

≤2021

Price T Rowe Associates Inc /MD/

6.5M

% of company

4.85%

Change vs last qtr

−508.7K (−7.2%)

Held since

≤2021

28 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting GH on Form N-PORT; together they hold 50.8% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$600M	4.0M	2.98%	0.03%	June 30, 2026
VS Vanguard Small-Cap Index Fund Vanguard Index Funds	$433M	2.9M	2.15%	0.23%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$600M

% of company

2.98%

% of the fund

0.03%

As of

June 30, 2026

Vanguard Small-Cap Index Fund

Vanguard Index Funds

Position value

$433M

% of company

2.15%

% of the fund

0.23%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Guardant Health 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
EH Eltoukhy Helmy Insider	4.4M	3.31%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company3.310% Eltoukhy Helmy's insider activity →
TA Talasaz AmirAli Insider	4.2M	3.15%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company3.150% Talasaz AmirAli's insider activity →

Eltoukhy Helmy

Insider

4.4M

% of company

3.31%

Change vs last qtr

—

Held since

—

Talasaz AmirAli

Insider

4.2M

% of company

3.15%

Change vs last qtr

—

Held since

—

16 more holders behind a free account

See every insider and 5%+ holder of Guardant Health Inc.

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