13D Filings
NewAmsterdam Pharma Company N.V.
NAMS
Amendment
Ownership

8.30%

Total Shares

9,316,914

Issuer CIK

1936258

CUSIP

N62509109

Event Date

Sep 25, 2025

Accepted

Sep 30, 2025, 04:47 PM

Reporting Persons (5)
Joint Filing

This is a joint filing. The reported shares may overlap between reporting persons and should not be summed.

NameType% of ClassAggregateSole VotingShared Voting
ForGrowth NAP B.V.
Other
8.30%9,316,91409,316,914
Forbion Capital Fund IV Cooperatief U.A.
Other
4.10%4,668,88904,668,889
Forbion IV Management B.V.
Other
4.10%4,668,88904,668,889
Forbion Growth Opportunities Fund I Cooperatief U.A.
Other
4.10%4,648,02504,648,025
Forbion Growth Management B.V.
Other
4.10%4,648,02504,648,025
Disclosure Items (2)

Security Title

Ordinary Shares, Nominal value 0.12 per share

Issuer Name

NewAmsterdam Pharma Company N.V.

Issuer Address

Gooimeer 2-35, Naarden, P7, 1411 DC

Percentage of Class

(i) Forbion Growth I may be deemed to beneficially own 4,648,025 Ordinary Shares held through ForGrowth, representing approximately 4.1% of the outstanding Ordinary Shares, (ii) Forbion IV may be deemed to beneficially own 4,668,889 Ordinary Shares held through ForGrowth, representing approximately 4.1% of the of the outstanding Ordinary Shares and (iii) ForGrowth may be deemed to beneficially own 9,316,914 Ordinary Shares, representing approximately 8.3% of the outstanding Ordinary Shares, including an aggregate of 8,664,741 Ordinary Shares allocable to Forbion Growth I and Forbion IV through ForGrowth's interest in PoolCo. Forbion Growth Management may be deemed to beneficially own the Ordinary Shares that may be deemed to be beneficially owned by Forbion Growth I, and Forbion IV Management may be deemed to beneficially own the Ordinary Shares that may be deemed to be beneficially owned by Forbion IV. The percentage of the outstanding Ordinary Shares that may be deemed to be beneficially owned by the Reporting Persons is based upon 112,628,458 shares of the Issuer's Ordinary Shares outstanding, as reported by the Issuer in its Quarterly Report on Form 10-Q filed on August 6, 2025.

Number of Shares

See above.

Transactions

Information concerning transactions in the Ordinary Shares of the Issuer effected since the most recent filing of Schedule 13D is set forth in Annex I of this Schedule 13D.

Shareholders

Not applicable.

Date of 5% Ownership

Not applicable.

NewAmsterdam Pharma Company N.V. — Schedule 13D | 13D Filings