STOUT STEPHEN

PrivateCIK: 1970664
Location

AUSTIN, TX

STOUT STEPHEN (See Remarks) sold 17.7% of their position (16K shares) of SHATTUCK LABS, INC. on the open market

Open‑market sale worth $168.5K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales
InsiderSTOUT STEPHENCIK 1970664
IssuerSHATTUCK LABS, INC.CIK 1680367
Officer· See Remarks
Since Jan 2026
-16K
Net shares
Net seller
$168.5K
Total sold
3
Open market trades
0B · 3S
7
Total transactions
11.11K acquired · 27.11K disposed
Non-Derivative Transactions5

Common Stock

Direct
M · Option Exercise

Shares

+4.65K

Price / share

$3.51

Trade value

$16.32K

% of position

5.9%
3/6/2024
79.33K83.98K

Common Stock

Direct
S · Sale

Shares

4.65K

Price / share

$10.53

Trade value

$48.96K

% of position

5.5%
3/6/2024
83.98K79.33K

Common Stock

Direct
M · Option Exercise

Shares

+6.46K

Price / share

$3.57

Trade value

$23.06K

% of position

8.1%
3/6/2024
79.33K85.79K

Common Stock

Direct
S · Sale

Shares

6.46K

Price / share

$10.53

Trade value

$68.01K

% of position

7.5%
3/6/2024
85.79K79.33K

Common Stock

Direct
S · Sale

Shares

4.89K

Price / share

$10.53

Trade value

$51.54K

% of position

6.2%
3/6/2024
79.33K74.44K
Total

Net shares

4.89K

Net value

-$129.14K

Derivative Transactions2

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

4.65K shares

Shares

4.65K

Strike price

3.51

Held after

9.30K

Exercisable

3/6/2024

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

6.46K shares

Shares

6.46K

Strike price

3.57

Held after

17.39K

Exercisable

3/6/2024
STOUT STEPHEN — Insider Transaction (Form 4) Filed Mar 8, 2024 | Finecho