WEDELL-WEDELLSBORG JOHAN

PrivateCIK: 1753185
Location

PRINCETON, NJ

WEDELL-WEDELLSBORG JOHAN reported 3 transactions at Y-MABS THERAPEUTICS, INC.

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

InsiderWEDELL-WEDELLSBORG JOHANCIK 1753185
IssuerY-MABS THERAPEUTICS, INC.CIK 1722964
Director10% Owner
Since Sep 2018
-4.77M
Net shares
Net seller
$39.26M
Total sold
0
Open market trades
0B · 0S
12
Total transactions
4.77M disposed
Non-Derivative Transactions3

Common Stock

Direct
U · U

Shares

5.83K

Price / share

$8.60

Trade value

$50.09K

% of position

New position
9/16/2025
5.83K0.00

Common Stock

Direct
D · Disposition

Shares

25.08K

Price / share

Trade value

% of position

New position
9/16/2025
25.08K0.00

Common Stock

Indirect
U · U

Shares

4.56M

Price / share

$8.60

Trade value

$39.21M

% of position

New position
9/16/2025
4.56M0.00
Total

Net shares

4.59M

Net value

-$39.26M

Derivative Transactions9

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

36K shares

Shares

36K

Strike price

4.38

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

32K shares

Shares

32K

Strike price

11.16

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

16K shares

Shares

16K

Strike price

21.45

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

11K shares

Shares

11K

Strike price

48.67

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

11K shares

Shares

11K

Strike price

37.53

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

16K shares

Shares

16K

Strike price

16.64

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

13.95K shares

Shares

13.95K

Strike price

8.13

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

14.54K shares

Shares

14.54K

Strike price

12.01

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

33.45K shares

Shares

33.45K

Strike price

4.51

Held after

0.00

Exercisable

9/16/2025
WEDELL-WEDELLSBORG JOHAN — Insider Transaction (Form 4) Filed Sep 18, 2025 | Finecho