MONROE TERILYN J. (Chief People Officer) sold 66.8% of their position (46.30K shares) of GUARDANT HEALTH, INC. on the open market

Open‑market sale worth $7.65M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 5 sales

MONROE TERILYN J.

Filed: 8/13/2026ACC: 0001652956-26-000018

InsiderMONROE TERILYN J.CIK 1652956

→

IssuerGUARDANT HEALTH, INC.CIK 1576280

Officer· Chief People Officer

Since Mar 2026

-46.30K

Net shares

Net seller

$7.65M

Total sold

Open market trades

0B · 5S

Total transactions

46.30K acquired · 92.60K disposed

Non-Derivative Transactions7

Common Stock

Direct

M · Option Exercise

+32.29K

Price / share

$20.14

Trade value

$650.28K

% of position

140.5%

8/12/2026

22.98K→55.27K

Common Stock

Direct

M · Option Exercise

+14.01K

Price / share

$28.61

Trade value

$400.88K

% of position

25.4%

8/12/2026

55.27K→69.28K

Common Stock

Direct

S · Sale

−3.70K

Price / share

$163.41

Trade value

$605.29K

% of position

5.3%

8/12/2026

69.28K→65.58K

Common Stock

Direct

S · Sale

−9.93K

Price / share

$164.27

Trade value

$1.63M

% of position

15.1%

8/12/2026

65.58K→55.64K

Common Stock

Direct

S · Sale

−19.01K

Price / share

$165.16

Trade value

$3.14M

% of position

34.2%

8/12/2026

55.64K→36.63K

Common Stock

Direct

S · Sale

−13.25K

Price / share

$166.11

Trade value

$2.20M

% of position

36.2%

8/12/2026

36.63K→23.38K

Common Stock

Direct

S · Sale

−400.00

Price / share

$167.92

Trade value

$67.17K

% of position

1.7%

8/12/2026

23.38K→22.98K

Total

Net shares

+0.00

Net value

-$6.59M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	8/12/2026	M · Option Exercise	+32.29K	$20.14	$650.28K	140.5%	22.98K	55.27K
Common Stock Direct	8/12/2026	M · Option Exercise	+14.01K	$28.61	$400.88K	25.4%	55.27K	69.28K
Common Stock Direct	8/12/2026	S · Sale	−3.70K	$163.41	$605.29K	5.3%	69.28K	65.58K
Common Stock Direct	8/12/2026	S · Sale	−9.93K	$164.27	$1.63M	15.1%	65.58K	55.64K
Common Stock Direct	8/12/2026	S · Sale	−19.01K	$165.16	$3.14M	34.2%	55.64K	36.63K
Common Stock Direct	8/12/2026	S · Sale	−13.25K	$166.11	$2.20M	36.2%	36.63K	23.38K
Common Stock Direct	8/12/2026	S · Sale	−400.00	$167.92	$67.17K	1.7%	23.38K	22.98K
Total			+0.00		-$6.59M

Derivative Transactions2

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

32.29K shares

−32.29K

Strike price

20.14

Held after

10.92K

Exercisable

—

8/12/2026

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

14.01K shares

−14.01K

Strike price

28.61

Held after

18.61K

Exercisable

—

8/12/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option (Right to Buy) Direct	Common Stock32.29K shares	8/12/2026	M · Option Exercise	−32.29K	20.14	—	10.92K
Stock Option (Right to Buy) Direct	Common Stock14.01K shares	8/12/2026	M · Option Exercise	−14.01K	28.61	—	18.61K