PAULING DAVID

PrivateCIK: 2063633

Location

SOUTH SAN FRANCISCO, CA

PAULING DAVID enters SUTRO BIOPHARMA, INC. with 98.76K shares plus derivative instruments

Holding both equity and derivatives at entry signals strong long-term conviction in the company.

Direct Derivatives

PAULING DAVID

Filed: 4/8/2025ACC: 0001415889-25-010380

InsiderPAULING DAVIDCIK 2063633

→

IssuerSUTRO BIOPHARMA, INC.CIK 1382101

Officer· Chief Admin. Ofcr. & GC

Since Mar 2026

98.76K

Baseline shares

100% direct

98.76K

Direct ownership

1 position

221.47K

Derivative underlying

10 instruments

1

Security positions

All direct

Non-Derivative Holdings1

Common Stock

Direct

Shares owned98.76K

Total

98.76K direct98.76K

Security Title	Shares Owned	Ownership Type
Common Stock	98.76K	Direct
Total	98.76K	98.76K direct

Derivative Holdings10

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

44K

Shares owned

N/A

Exercise price

4.54

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

30K

Shares owned

N/A

Exercise price

5.79

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

1.38K

Shares owned

N/A

Exercise price

14.16

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common Stock

Underlying shares

25.27K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common Stock

Underlying shares

10K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common Stock

Underlying shares

6.75K

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

40K

Shares owned

N/A

Exercise price

21.11

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

23K

Shares owned

N/A

Exercise price

6.55

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

13.07K

Shares owned

N/A

Exercise price

15

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

28K

Shares owned

N/A

Exercise price

8.17

Expiration

—

Exercise window

—

Total

Underlying

221.47K

Owned

0.00

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Stock Option (Right to Buy) Direct	Common Stock	4.54	—	—	44K	N/A
Stock Option (Right to Buy) Direct	Common Stock	5.79	—	—	30K	N/A
Stock Option (Right to Buy) Direct	Common Stock	14.16	—	—	1.38K	N/A
Restricted Stock Units Direct	Common Stock		—	—	25.27K	N/A
Restricted Stock Units Direct	Common Stock		—	—	10K	N/A
Restricted Stock Units Direct	Common Stock		—	—	6.75K	N/A
Stock Option (Right to Buy) Direct	Common Stock	21.11	—	—	40K	N/A
Stock Option (Right to Buy) Direct	Common Stock	6.55	—	—	23K	N/A
Stock Option (Right to Buy) Direct	Common Stock	15	—	—	13.07K	N/A
Stock Option (Right to Buy) Direct	Common Stock	8.17	—	—	28K	N/A
Total					221.47K	0.00

PAULING DAVID — Initial Ownership Disclosure (Form 3) Filed Apr 8, 2025 | Finecho