WILMS JORIS

PrivateCIK: 1753231
Location

PRINCETON, NJ

WILMS JORIS (Sr. VP and COO) reported 2 transactions at Y-MABS THERAPEUTICS, INC.

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

InsiderWILMS JORISCIK 1753231
IssuerY-MABS THERAPEUTICS, INC.CIK 1722964
Officer· Sr. VP and COO
Since Sep 2018
-350.40K
Net shares
Net seller
$110.1K
Total sold
0
Open market trades
0B · 0S
13
Total transactions
350.40K disposed
Non-Derivative Transactions2

Common Stock

Direct
U · U

Shares

12.80K

Price / share

$8.60

Trade value

$110.07K

% of position

New position
9/16/2025
12.80K0.00

Common Stock

Direct
D · Disposition

Shares

39.30K

Price / share

Trade value

% of position

New position
9/16/2025
39.30K0.00
Total

Net shares

52.10K

Net value

-$110.07K

Derivative Transactions11

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

20K shares

Shares

20K

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

20K shares

Shares

20K

Strike price

9.35

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

20K shares

Shares

20K

Strike price

21.97

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

20K shares

Shares

20K

Strike price

33.74

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

20K shares

Shares

20K

Strike price

53.88

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

15.73

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

20K shares

Shares

20K

Strike price

9.51

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

35.70K shares

Shares

35.70K

Strike price

4.70

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

4.55

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

35.70K shares

Shares

35.70K

Strike price

9.83

Held after

0.00

Exercisable

9/16/2025

Employee Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

42.90K shares

Shares

42.90K

Strike price

6.16

Held after

0.00

Exercisable

9/16/2025
WILMS JORIS — Insider Transaction (Form 4) Filed Sep 18, 2025 | Finecho