MARSHALL KEITH W (Chief Financial Officer) reported 1 transaction at PROMETHEUS BIOSCIENCES, INC.

Review the transaction codes below to understand the nature of each event.

MARSHALL KEITH W

Filed: 6/16/2023ACC: 0000899243-23-015754

InsiderMARSHALL KEITH WCIK 1714828

→

IssuerPROMETHEUS BIOSCIENCES, INC.CIK 1718852

Officer· Chief Financial Officer

Since Mar 2021

-605.51K

Net shares

Net seller

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

605.51K disposed

Non-Derivative Transactions1

Common Stock

Direct

D · Disposition

−87.97K

Price / share

—

Trade value

—

% of position

New position

6/16/2023

87.97K→0.00

Total

Net shares

−87.97K

Net value

$0.00

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	6/16/2023	D · Disposition	−87.97K	—	—	New position	87.97K	0.00
Total			−87.97K		$0.00

Derivative Transactions7

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

52.84K shares

−52.84K

Strike price

3.10

Held after

0.00

Exercisable

—

6/16/2023

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

93.04K shares

−93.04K

Strike price

3.70

Held after

0.00

Exercisable

—

6/16/2023

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

135.91K shares

−135.91K

Strike price

6.70

Held after

0.00

Exercisable

—

6/16/2023

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

102.16K shares

−102.16K

Strike price

36.32

Held after

0.00

Exercisable

—

6/16/2023

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

86.58K shares

−86.58K

Strike price

29.56

Held after

0.00

Exercisable

—

6/16/2023

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

34.09K shares

−34.09K

Strike price

110.20

Held after

0.00

Exercisable

—

6/16/2023

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

12.92K shares

−12.92K

Strike price

108.76

Held after

0.00

Exercisable

—

6/16/2023

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable
Stock Option (right to buy) Direct	Common Stock52.84K shares	6/16/2023	D · Disposition	−52.84K	3.10	—
Stock Option (right to buy) Direct	Common Stock93.04K shares	6/16/2023	D · Disposition	−93.04K	3.70	—
Stock Option (right to buy) Direct	Common Stock135.91K shares	6/16/2023	D · Disposition	−135.91K	6.70	—
Stock Option (right to buy) Direct	Common Stock102.16K shares	6/16/2023	D · Disposition	−102.16K	36.32	—
Stock Option (right to buy) Direct	Common Stock86.58K shares	6/16/2023	D · Disposition	−86.58K	29.56	—
Stock Option (right to buy) Direct	Common Stock34.09K shares	6/16/2023	D · Disposition	−34.09K	110.20	—
Stock Option (right to buy) Direct	Common Stock12.92K shares	6/16/2023	D · Disposition	−12.92K	108.76	—