FITZPATRICK LINDA A (Chief People & Comm. Officer) exercised options at SUTRO BIOPHARMA, INC.

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

M · 4 exercises

FITZPATRICK LINDA A

Filed: 5/5/2025ACC: 0001415889-25-011998

InsiderFITZPATRICK LINDA ACIK 1188953

→

IssuerSUTRO BIOPHARMA, INC.CIK 1382101

Officer· Chief People & Comm. Officer

Since Sep 2018

-13.54K

Net shares

Net seller

$14.5K

Total sold

Open market trades

0B · 0S

Total transactions

37.85K acquired · 51.39K disposed

Non-Derivative Transactions5

Common Stock

Direct

M · Option Exercise

+9.13K

Price / share

—

Trade value

—

% of position

9.6%

5/1/2025

95.43K→104.56K

Common Stock

Direct

M · Option Exercise

+9.74K

Price / share

—

Trade value

—

% of position

9.3%

5/1/2025

104.56K→114.30K

Common Stock

Direct

M · Option Exercise

+13.14K

Price / share

—

Trade value

—

% of position

11.5%

5/1/2025

114.30K→127.44K

Common Stock

Direct

M · Option Exercise

+5.84K

Price / share

—

Trade value

—

% of position

4.6%

5/1/2025

127.44K→133.28K

Common Stock

Direct

F · Tax Withholding

−13.54K

Price / share

$1.07

Trade value

$14.49K

% of position

10.2%

5/1/2025

133.28K→119.74K

Total

Net shares

+24.31K

Net value

-$14.49K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	5/1/2025	M · Option Exercise	+9.13K	—	—	9.6%	95.43K	104.56K
Common Stock Direct	5/1/2025	M · Option Exercise	+9.74K	—	—	9.3%	104.56K	114.30K
Common Stock Direct	5/1/2025	M · Option Exercise	+13.14K	—	—	11.5%	114.30K	127.44K
Common Stock Direct	5/1/2025	M · Option Exercise	+5.84K	—	—	4.6%	127.44K	133.28K
Common Stock Direct	5/1/2025	F · Tax Withholding	−13.54K	$1.07	$14.49K	10.2%	133.28K	119.74K
Total			+24.31K		-$14.49K

Derivative Transactions4

Restricted Stock Unit (RSU)

Direct

M · Option Exercise

Converts to

Common Stock

9.13K shares

−9.13K

Strike price

Held after

0.00

Exercisable

—

5/1/2025

Restricted Stock Unit (RSU)

Direct

M · Option Exercise

Converts to

Common Stock

9.74K shares

−9.74K

Strike price

Held after

4.01K

Exercisable

—

5/1/2025

Restricted Stock Unit (RSU)

Direct

M · Option Exercise

Converts to

Common Stock

13.14K shares

−13.14K

Strike price

Held after

14.69K

Exercisable

—

5/1/2025

Restricted Stock Unit (RSU)

Direct

M · Option Exercise

Converts to

Common Stock

5.84K shares

−5.84K

Strike price

Held after

6.53K

Exercisable

—

5/1/2025

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Unit (RSU) Direct	Common Stock9.13K shares	5/1/2025	M · Option Exercise	−9.13K	—	0.00
Restricted Stock Unit (RSU) Direct	Common Stock9.74K shares	5/1/2025	M · Option Exercise	−9.74K	—	4.01K
Restricted Stock Unit (RSU) Direct	Common Stock13.14K shares	5/1/2025	M · Option Exercise	−13.14K	—	14.69K
Restricted Stock Unit (RSU) Direct	Common Stock5.84K shares	5/1/2025	M · Option Exercise	−5.84K	—	6.53K

Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect

Shares owned10.38K

Total

10.38K indirect10.38K

Security Title	Shares Owned	Ownership Type
Common Stock	10.38K	Indirect
Total	10.38K	10.38K indirect

Derivative Holdings (Post-Transaction)0

No derivative holdings reported