SAIA JOHN G. (See Remarks) exercised options at GUARDANT HEALTH, INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 4 exercises

SAIA JOHN G.

Filed: 7/2/2026ACC: 0001737840-26-000018

InsiderSAIA JOHN G.CIK 1737840

→

IssuerGUARDANT HEALTH, INC.CIK 1576280

Officer· See Remarks

Since May 2020

-3.71K

Net shares

Net seller

$633.0K

Total sold

Open market trades

0B · 0S

Total transactions

7.06K acquired · 10.77K disposed

Non-Derivative Transactions5

Common Stock

Direct

M · Option Exercise

+974.00

Price / share

—

Trade value

—

% of position

2.7%

7/1/2026

36.44K→37.41K

Common Stock

Direct

M · Option Exercise

+1.67K

Price / share

—

Trade value

—

% of position

4.5%

7/1/2026

37.41K→39.08K

Common Stock

Direct

M · Option Exercise

+2.92K

Price / share

—

Trade value

—

% of position

7.5%

7/1/2026

39.08K→42K

Common Stock

Direct

M · Option Exercise

+1.50K

Price / share

—

Trade value

—

% of position

3.6%

7/1/2026

42K→43.50K

Common Stock

Direct

F · Tax Withholding

−3.71K

Price / share

$170.77

Trade value

$633.04K

% of position

8.5%

7/1/2026

43.50K→39.79K

Total

Net shares

+3.36K

Net value

-$633.04K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	7/1/2026	M · Option Exercise	+974.00	—	—	2.7%	36.44K	37.41K
Common Stock Direct	7/1/2026	M · Option Exercise	+1.67K	—	—	4.5%	37.41K	39.08K
Common Stock Direct	7/1/2026	M · Option Exercise	+2.92K	—	—	7.5%	39.08K	42K
Common Stock Direct	7/1/2026	M · Option Exercise	+1.50K	—	—	3.6%	42K	43.50K
Common Stock Direct	7/1/2026	F · Tax Withholding	−3.71K	$170.77	$633.04K	8.5%	43.50K	39.79K
Total			+3.36K		-$633.04K

Derivative Transactions4

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

974.00 shares

−974.00

Strike price

Held after

974.00

Exercisable

—

7/1/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

1.67K shares

−1.67K

Strike price

Held after

1.67K

Exercisable

—

7/1/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

2.92K shares

−2.92K

Strike price

Held after

14.63K

Exercisable

—

7/1/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

1.50K shares

−1.50K

Strike price

Held after

10.47K

Exercisable

—

7/1/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Units Direct	Common Stock974.00 shares	7/1/2026	M · Option Exercise	−974.00	—	974.00
Restricted Stock Units Direct	Common Stock1.67K shares	7/1/2026	M · Option Exercise	−1.67K	—	1.67K
Restricted Stock Units Direct	Common Stock2.92K shares	7/1/2026	M · Option Exercise	−2.92K	—	14.63K
Restricted Stock Units Direct	Common Stock1.50K shares	7/1/2026	M · Option Exercise	−1.50K	—	10.47K