SOMAIYA MAYUR IAN (Chief Financial Officer) sold 62.0% of their position (61.88K shares) of NEWAMSTERDAM PHARMA CO N.V. on the open market

Insider sale on the open market — a major position exit. Check remaining position size for full context.

S · 4 sales

SOMAIYA MAYUR IAN

Filed: 1/29/2025ACC: 0000950170-25-010594

InsiderSOMAIYA MAYUR IANCIK 1760303

→

IssuerNEWAMSTERDAM PHARMA CO N.V.CIK 1936258

Officer· Chief Financial Officer

Since Dec 2023

-61.88K

Net shares

Net seller

$573.0K

Total acquired

Open market trades

0B · 4S

Total transactions

61.88K acquired · 123.77K disposed

Non-Derivative Transactions6

Ordinary Shares

Direct

M · Option Exercise

+46.98K

Price / share

$9.26

Trade value

$435.06K

% of position

123.6%

1/27/2025

38K→84.98K

Ordinary Shares

Direct

S · Sale

−33.68K

Price / share

—

Trade value

—

% of position

39.6%

1/27/2025

84.98K→51.30K

Ordinary Shares

Direct

S · Sale

−13.30K

Price / share

—

Trade value

—

% of position

25.9%

1/27/2025

51.30K→38K

Ordinary Shares

Direct

M · Option Exercise

+14.90K

Price / share

$9.26

Trade value

$137.97K

% of position

39.2%

1/28/2025

38K→52.90K

Ordinary Shares

Direct

S · Sale

−11.49K

Price / share

—

Trade value

—

% of position

21.7%

1/28/2025

52.90K→41.41K

Ordinary Shares

Direct

S · Sale

−3.40K

Price / share

—

Trade value

—

% of position

8.2%

1/28/2025

41.41K→38K

Total

Net shares

+0.00

Net value

$573.04K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Ordinary Shares Direct	1/27/2025	M · Option Exercise	+46.98K	$9.26	$435.06K	123.6%	38K	84.98K
Ordinary Shares Direct	1/27/2025	S · Sale	−33.68K	—	—	39.6%	84.98K	51.30K
Ordinary Shares Direct	1/27/2025	S · Sale	−13.30K	—	—	25.9%	51.30K	38K
Ordinary Shares Direct	1/28/2025	M · Option Exercise	+14.90K	$9.26	$137.97K	39.2%	38K	52.90K
Ordinary Shares Direct	1/28/2025	S · Sale	−11.49K	—	—	21.7%	52.90K	41.41K
Ordinary Shares Direct	1/28/2025	S · Sale	−3.40K	—	—	8.2%	41.41K	38K
Total			+0.00		$573.04K

Derivative Transactions2

Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Ordinary Shares

46.98K shares

−46.98K

Strike price

9.26

Held after

777.71K

Exercisable

—

1/27/2025

Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Ordinary Shares

14.90K shares

−14.90K

Strike price

9.26

Held after

762.81K

Exercisable

—

1/28/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Option (Right to Buy) Direct	Ordinary Shares46.98K shares	1/27/2025	M · Option Exercise	−46.98K	9.26	—	777.71K
Option (Right to Buy) Direct	Ordinary Shares14.90K shares	1/28/2025	M · Option Exercise	−14.90K	9.26	—	762.81K