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Disclosery

NAMS NEWAMSTERDAM PHARMA COMPANY

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COMMON STOCK (common), issuer CIK 1936258

131 managers (133 13F filers) reported a position in NAMS shares at 2025-06-30, 116,368,320 shares in all. 25 filers opened a position and 20 filers sold out during the quarter.

Managers
131
13F filers
133
New
25
Added
58
Reduced
30
Sold out
20
Shares held by filers
116,368,320

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Frazier Life Sciences Management, L.P.16,607,074$301M12.03%+490,65613F-HRTimeline
Bain Capital Life Sciences Investors, L…in group Bain Capital Life Sciences In…10,719,110$194M24.29%013F-HRTimelineGroup
FCPM III SERVICES B.V.in group FCPM III SERVICES B.V.10,632,113$193M52.16%-303,19713F-HRTimelineGroup
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.10,138,938$184M3.09%013F-HRTimelineGroup
Capital World Investors8,387,725$152M0.02%+1,589,12713F-HRTimeline
VIKING GLOBAL INVESTORS LPin group VIKING GLOBAL INVESTORS LP6,978,534$126M0.37%013F-HRTimelineGroup
DEERFIELD MANAGEMENT COMPANY, L.P.in group DEERFIELD MANAGEMENT COMPANY,…5,115,953$92.6M1.68%+1,011,99613F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…3,322,997$60.2M0.01%-218,97813F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…3,013,009$54.6M0.09%+1,062,35913F-HRTimelineGroup
JENNISON ASSOCIATES LLC2,946,103$53.4M0.03%-1,024,08613F-HRTimeline
Medicxi Ventures Management (Jersey) Ltd2,869,565$52M12.16%013F-HRTimeline
Polar Capital Holdings Plcin group Polar Capital Holdings Plc2,517,779$45.6M0.24%+267,77913F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.2,331,583$42.2M0.01%+89,63013F-HRTimeline
Cormorant Asset Management, LP2,175,000$39.4M2.93%-650,00013F-HRTimeline
Capital International Investorsin group Capital International Investo…2,062,535$37.4M0.01%013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson1,962,060$35.6M0.02%-237,57313F-HRTimelineGroup
FMR LLCin group FMR LLC1,904,550$34.5M<0.01%+940,72613F-HRTimelineGroup
Woodline Partners LP1,897,197$34.4M0.18%-545,20013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…1,816,725$32.9M0.03%+4,77613F-HRTimelineGroup
MAVERICK CAPITAL LTD1,531,874$27.7M0.43%+982,40513F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,458,897$26.4M<0.01%+467,57913F-HRTimelineGroup
Siren, L.L.C.in group Siren, L.L.C.1,194,240$21.6M1.12%-717,79013F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC949,980$17.2M<0.01%+330,41713F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding948,523$17.2M+262,246Timeline
TimesSquare Capital Management, LLC872,537$15.8M0.23%-18,55113F-HRTimeline
Duquesne Family Office LLC832,175$15.1M0.39%+31,81513F-HRTimeline
Decheng Capital LLC770,000$13.9M3.52%013F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc735,032$13.3M0.02%+358,16913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY637,707$11.5M<0.01%+200,16813F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.571,673$10.4M<0.01%+73,69213F-HRTimelineGroup
Rock Springs Capital Management LP536,111$9.71M0.6%013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC532,916$9.65M0.01%+4,08613F-HRTimelineGroup
First Turn Management, LLC521,097$9.44M1.76%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/484,004$8.77M<0.01%-175,30413F-HRTimelineGroup
Eversept Partners, LP414,430$7.51M0.76%+133,47913F-HRTimeline
ArrowMark Colorado Holdings LLC358,614$6.49M0.12%-3,10813F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp352,952$6.39M<0.01%new13F-HRTimelineGroup
Handelsbanken Fonder AB341,600$6.19M0.02%+81,60013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources334,212$6.05M<0.01%+78,30013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC320,143$5.8M0.01%-361,79013F-HRTimelineGroup
Slate Path Capital LP319,000$5.78M0.1%013F-HRTimeline
Affinity Asset Advisors, LLC275,000$4.98M0.74%-50,00013F-HRTimeline
AXA S.A.in group AXA S.A.242,916$4.4M0.01%+39713F-HRTimelineGroup
READYSTATE ASSET MANAGEMENT LP231,194$4.19M0.17%+1,53213F-HRTimeline
Saturn V Capital Management LP220,695$4M1.62%+104,34213F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC208,081$3.77M<0.01%+112,92713F-HRTimelineGroup
Ikarian Capital, LLCin group Ikarian Capital, LLC206,800$3.75M1.24%new13F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC178,846$3.24M<0.01%+148,37013F-HRTimelineGroup
DCF Advisers, LLC172,500$3.12M1.5%013F-HRTimeline
Atle Fund Management AB157,223$2.85M1.22%+49,44013F-HRTimeline
STEMPOINT CAPITAL LP152,652$2.76M0.89%+48,06713F-HRTimeline
Invesco Ltd.in group Invesco Ltd.134,035$2.43M<0.01%+15,10113F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP131,430$2.38M<0.01%+12,37813F-HRTimelineGroup
Nicholas Investment Partners, LP115,739$2.1M0.19%new13F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC112,359$2.03M0.33%new13F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC99,457$1.8M<0.01%+13,62913F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…89,827$1.63M<0.01%-59,20913F-HRTimelineGroup
Swiss National Bank83,900$1.52M<0.01%+13,00013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP81,304$1.47M<0.01%+14,60613F-HRTimelineGroup
CenterBook Partners LP68,190$1.23M0.07%-154,07413F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\68,092$1.23M<0.01%-4,30513F-HRTimelineGroup
ALPS ADVISORS INCin group ALPS ADVISORS INC60,551$1.1M0.01%-17,41013F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC60,054$1.09M0.03%-68,82113F-HRTimeline
Lisanti Capital Growth, LLC49,110$889K0.25%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…47,862$867K<0.01%+28,45813F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc44,235$801K<0.01%+11,10613F-HRTimelineGroup
Exome Asset Management LLC36,574$662K0.55%new13F-HR/ATimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding35,720$647K+2,266Timeline
Knights of Columbus Asset Advisors LLC32,833$595K0.04%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP30,311$549K<0.01%+65113F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS29,277$530K<0.01%+1,25713F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP28,392$514K<0.01%-13,46613F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC27,345$495K<0.01%+13,04513F-HRTimelineGroup
Artia Global Partners LP27,319$495K0.13%new13F-HRTimeline
HRT FINANCIAL LP26,208$474K<0.01%-6,43413F-HRTimeline
Yarbrough Capital, LLC23,960$434K0.02%013F-HRTimeline
China Universal Asset Management Co., L…22,549$408K0.04%+52113F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC22,037$399K<0.01%-5,38413F-HRTimelineGroup
Bellevue Group AGin group Bellevue Group AG20,555$372K0.01%-1,24513F-HRTimelineGroup
HighVista Strategies LLC19,274$349K0.13%new13F-HRTimeline
Legato Capital Management LLC18,789$340K0.04%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA18,332$332K<0.01%+8,99613F-HR/ATimelineGroup
ALGERT GLOBAL LLC18,140$329K0.01%new13F-HR/ATimeline
BARCLAYS PLCin group BARCLAYS PLC17,871$324K<0.01%+1,98613F-HR/ATimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC14,279$259K<0.01%new13F-HR/ATimelineGroup
PTM WEALTH MANAGEMENT, LLC12,900$256K0.17%new13F-HRTimeline
Verition Fund Management LLC13,828$250K<0.01%-36,64413F-HRTimeline
KENNEDY CAPITAL MANAGEMENT LLC13,675$248K0.01%new13F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC13,420$243K0.02%new13F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM12,768$231K<0.01%+2,28213F-HRTimeline
LETKO, BROSSEAU & ASSOCIATES INC11,775$213K<0.01%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS11,700$212K<0.01%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …10,868$197K<0.01%+54413F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…10,739$194K<0.01%new13F-HR/ATimelineGroup
KLP KAPITALFORVALTNING AS9,100$165K<0.01%+3,10013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.7,640$138K<0.01%013F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…7,540$137K<0.01%+1,55013F-HRTimeline
Avanza Fonder AB7,505$136K<0.01%+1,30013F-HRTimeline
Quarry LP7,000$127K0.03%+5,80013F-HRTimeline
Caption Management, LLC6,000$109K0.01%-24,93413F-HRTimeline
SIMPLEX TRADING, LLC5,604$101K<0.01%+3,07613F-HRTimeline
CITIGROUP INCin group CITIGROUP INC4,747$86K<0.01%+1,13013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,594$83.2K<0.01%-7413F-HRTimelineGroup
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…4,471$81K0.03%-2,07213F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.2,365$42.8K<0.01%013F-HRTimeline
Kiker Wealth Management, LLC2,000$36.2K0.02%013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/1,981$35.9K<0.01%+14913F-HR/ATimelineGroup
Parallel Advisors, LLC1,400$25.4K<0.01%-913F-HRTimeline
Cheviot Value Management, LLC796$20.1K<0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC937$17K<0.01%+81713F-HRTimelineGroup
SIGNATUREFD, LLC647$11.7K<0.01%-4213F-HRTimeline
Caitong International Asset Management …595$10.8K0.01%+46313F-HRTimeline
State of Wyoming550$9.96K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…548$9.92K<0.01%-16413F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC500$9.05K<0.01%new13F-HRTimelineGroup
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.375$7K<0.01%013F-HRTimelineGroup
Stone House Investment Management, LLC325$5.89K<0.01%013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\272$4.93K<0.01%-36913F-HRTimelineGroup
Roxbury Financial LLC264$4.78K<0.01%+19513F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP249$4.62K<0.01%new13F-HRTimelineGroup
GROUP ONE TRADING LLC225$4.08K<0.01%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN200$3.62K<0.01%-30013F-HRTimelineGroup
Clearstead Advisors, LLC88$1.59K<0.01%new13F-HRTimeline
True Wealth Design, LLC21$381<0.01%+1913F-HRTimeline
Kilter Group LLC10$182<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…8$145<0.01%+613F-HRTimelineGroup
IFP Advisors, Inc3$54<0.01%+213F-HRTimeline
Essential Partners LLC2$36<0.01%13F-HRTimeline
DUPONT CAPITAL MANAGEMENT CORP1$18<0.01%013F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.
NOMURA ASSET MANAGEMENT CO LTDin group NOMURA ASSET MANAGEMENT CO LTD0$00%013F-HRTimelineGroupValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.