MARSHALL KEITH W

PrivateCIK: 1714828
Location

SAN DIEGO, CA

MARSHALL KEITH W (Chief Financial Officer) sold 50.5% of their position (10K shares) of PROMETHEUS BIOSCIENCES, INC. on the open market

Open‑market sale worth $1.22M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderMARSHALL KEITH WCIK 1714828
Officer· Chief Financial Officer
Since Mar 2021
-10K
Net shares
Net seller
$1.22M
Total sold
1
Open market trades
0B · 1S
3
Total transactions
10K acquired · 20K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+10K

Price / share

$3.70

Trade value

$37K

% of position

101.9%
3/6/2023
9.81K19.81K

Common Stock

Direct
S · Sale

Shares

10K

Price / share

$122.13

Trade value

$1.22M

% of position

50.5%
3/6/2023
19.81K9.81K
Total

Net shares

+0.00

Net value

-$1.18M

Derivative Transactions1

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

10K shares

Shares

10K

Strike price

3.70

Held after

103.04K

Exercisable

3/6/2023
MARSHALL KEITH W — Insider Transaction (Form 4) Filed Mar 8, 2023 | Finecho