Frazier Life Sciences X, L.P. - Aug 18, 2025 SCHEDULE 13D/A Report for NEWAMSTERDAM PHARMA COMPANY N.V. Ordinary Shares, nominal value EUR0.12 per share (NAMS)

Filing Manager
Frazier Life Sciences X, L.P.
Reporting Manager
Frazier Life Sciences X, L.P.
Security
NEWAMSTERDAM PHARMA COMPANY N.V. Ordinary Shares, nominal value EUR0.12 per share
Symbol
NAMS
Shares outstanding
113M shares
Disclosed Ownership
7.33M shares
Ownership
6.5%
Form type
SCHEDULE 13D/A
Date filed
8/20/2025, 05:28 PM
Date of event
Aug 18, 2025
Next filing
Nov 4, 2025
SEC
View on sec.gov

Reporting Managers (21)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Frazier Life Sciences X, L.P. 6.5% 7.33M 0 7.33M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS X, L.L.C., GP of FHMLS X, L.P., GP of Frazier Life Sciences X, L.P. 0001790879
Frazier Lifesciences Sponsor LLC 3.5% 3.97M 0 3.97M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS X, L.L.C., GP of FHMLS X, L.P., GP of Frazier Life Sciences X, L.P., Sole Member of Frazier Lifesciences Sponsor LLC 0001828906
FHMLS X, L.P. 6.5% 7.33M 0 7.33M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS X, L.L.C., GP of FHMLS X, L.P. 0001790880
FHMLS X, L.L.C. 6.5% 7.33M 0 7.33M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS X, L.L.C. 0001790811
Frazier Life Sciences Public Fund, L.P. 5% 5.59M 0 5.59M /s/ Steve R. Bailey Steve R. Bailey, CFO of FHMLSP, L.L.C., GP of FHMLSP, L.P., GP of Frazier Life Sciences Public Fund, L.P. 0001863769
FHMLSP, L.P. 5% 5.59M 0 5.59M /s/ Steve R. Bailey Steve R. Bailey, CFO of FHMLSP, L.L.C., GP of FHMLSP, L.P. 0001879466
FHMLSP, L.L.C. 5% 5.59M 0 5.59M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLSP, L.L.C. 0001879465
Frazier Life Sciences Public Overage Fund, L.P. 2.6% 2.98M 0 2.98M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLSP Overage, L.L.C., GP of FHMLSP Overage, L.P., GP of Frazier Life Sciences Public Overage Fund, L.P. 0001913804
FHMLSP Overage, L.P. 2.6% 2.98M 0 2.98M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLSP Overage, L.L.C., GP of FHMLSP Overage, L.P. 0001963247
FHMLSP Overage, L.L.C. 2.6% 2.98M 0 2.98M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLSP Overage, L.L.C. 0001963248
Frazier Life Sciences XI, L.P. 1% 1.17M 0 1.17M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS XI, L.L.C., GP of FHMLS XI, L.P., GP of Frazier Life Sciences XI, L.P. 0001911592
FHMLS XI, L.P. 1% 1.17M 0 1.17M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS XI, L.L.C., GP of FHMLS XI, L.P. 0001911580
FHMLS XI, L.L.C. 1% 1.17M 0 1.17M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS XI, L.L.C. 0001911623
Frazier Life Sciences XII, L.P. 0.1% 59.6K 0 59.6K /s/ Gordon Empey By Gordon Empey, General Counsel of FHMLS XII, L.L.C., GP of FHMLS XII, L.P., GP of Frazier Life Sciences XII, L.P. 0002052255
FHMLS XII, L.P. 0.1% 59.6K 0 59.6K /s/ Gordon Empey By Gordon Empey, General Counsel of FHMLS XII, L.L.C., GP of FHMLS XII, L.P. 0002052246
FHMLS XII, L.L.C. 0.1% 59.6K 0 59.6K /s/ Gordon Empey By Gordon Empey, General Counsel of FHMLS XII, L.L.C. 0002052177
James N. Topper 6.5% 7.33M 0 7.33M /s/ Steve R. Bailey By Steve R. Bailey, Attorney-in-Fact for James N. Topper, pursuant to a Power of Attorney, a copy of which was filed with the SEC on July 31, 2017 0001341382
Patrick J. Heron 6.5% 7.33M 0 7.33M /s/ Steve R. Bailey By Steve R. Bailey, Attorney-in-Fact for Patrick J. Heron, pursuant to a Power of Attorney, a copy of which was filed with the SEC on July 31, 2017 0001365617
Albert Cha 0% 0 0 0 /s/ Steve R. Bailey By Steve R. Bailey, Attorney-in-Fact for Albert Cha, pursuant to a Power of Attorney, a copy of which was filed with the SEC on August 16, 2021 0001397906
James Brush 0% 0 0 0 /s/ Steve R. Bailey By Steve R. Bailey, Attorney-in-Fact for James Brush, pursuant to a Power of Attorney, a copy of which was filed with the SEC on August 16, 2021 0001865123
Daniel Estes 0% 0 0 0 /s/ Steve R. Bailey By Steve R. Bailey, Attorney-in-Fact for Daniel Estes, pursuant to a Power of Attorney, a copy of which was filed with the SEC on April 18, 2022 0001702527