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Disclosery

NAMS NEWAMSTERDAM PHARMA COMPANY

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COMMON STOCK (common), issuer CIK 1936258

192 managers (195 13F filers) reported a position in NAMS shares at 2026-06-30, 121,990,598 shares in all. 45 filers opened a position and 20 filers sold out during the quarter.

Managers
192
13F filers
195
New
45
Added
71
Reduced
50
Sold out
20
Shares held by filers
121,990,598

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 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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.18,088,902$613M13.35%+1,145,12813F-HRTimeline
Capital World Investors12,230,557$414M0.05%+1,121,52313F-HRTimeline
FMR LLCin group FMR LLC10,339,663$350M0.02%+1,573,85213F-HRTimelineGroup
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.9,550,191$324M2.81%013F-HRTimelineGroup
FCPM III SERVICES B.V.in group FCPM III SERVICES B.V.8,490,353$288M38.34%-708,54713F-HRTimelineGroup
DEERFIELD MANAGEMENT COMPANY, L.P.in group DEERFIELD MANAGEMENT COMPANY,…4,264,789$145M1.51%013F-HRTimelineGroup
VIKING GLOBAL INVESTORS LPin group VIKING GLOBAL INVESTORS LP4,203,567$142M0.41%013F-HRTimelineGroup
Bain Capital Life Sciences Investors, L…in group Bain Capital Life Sciences In…3,806,566$129M7.67%-3,500,00013F-HRTimelineGroup
MAVERICK CAPITAL LTD3,267,802$111M1%+1,081,40013F-HRTimeline
Duquesne Family Office LLC3,070,146$104M2.39%013F-HRTimeline
Jupiter Topco LLCin group Janus Henderson2,535,682$86M0.04%13F-HRTimelineGroup
Medicxi Ventures Management (Jersey) Ltd2,208,639$74.9M42.19%-465,54313F-HRTimeline
JENNISON ASSOCIATES LLC2,102,286$71.2M0.04%-648,11713F-HRTimeline
Orbis Allan Gray Ltdin group Orbis Allan Gray Ltd1,747,627$59.2M0.2%new13F-HRTimelineGroup
Polar Capital Holdings Plcin group Polar Capital Holdings Plc1,724,518$58.4M0.17%-1,107,08913F-HRTimelineGroup
Capital International Investorsin group Capital International Investo…1,723,495$58.4M0.01%+282,36413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,544,911$52.4M0.01%-401,46313F-HRTimelineGroup
WESTFIELD CAPITAL MANAGEMENT CO LP1,536,472$52.1M0.17%-666,44113F-HRTimeline
Castle Hook Partners LP1,371,005$46.5M0.5%+328,36813F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC1,253,549$42.5M0.01%+500,49513F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.1,259,940$40.3M0.01%+60,61513F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/1,167,357$39.6M<0.01%new13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,132,955$38.4M<0.01%+248,72713F-HRTimelineGroup
Aberdeen Group plcin group Aberdeen Group plc1,102,785$37.4M0.05%+265,78013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.1,063,750$36.1M<0.01%+177,13413F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources993,917$33.7M0.01%+223,75713F-HRTimelineGroup
TimesSquare Capital Management, LLC796,162$27M0.4%+44,17413F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …781,140$26.5M0.03%-176,30213F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…754,327$25.6M0.02%+736,50213F-HRTimelineGroup
Woodline Partners LP752,489$25.5M0.08%+18113F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/735,483$24.9M<0.01%-111,60613F-HRTimelineGroup
NWI MANAGEMENT LP702,000$23.8M1.52%013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC684,813$23.2M0.01%+165,35813F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC645,805$21.9M0.01%-66,25913F-HRTimelineGroup
Rock Springs Capital Management LP582,744$19.7M0.96%-6,05013F-HRTimeline
First Turn Management, LLC582,497$19.7M2.11%+24,16113F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY575,825$19.5M<0.01%+20,06413F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…550,000$18.6M0.03%-556,63113F-HRTimelineGroup
Artia Global Partners LP503,936$17.1M3.25%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC501,614$17M0.01%+197,76613F-HRTimelineGroup
Cormorant Asset Management, LP500,000$16.9M0.87%-450,00013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC474,236$16.1M0.01%+309,03513F-HRTimelineGroup
KENNEDY CAPITAL MANAGEMENT LLC421,374$14.3M0.25%+12,88213F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp353,298$12M<0.01%-25,50213F-HRTimelineGroup
HRT FINANCIAL LP349,843$11.9M0.02%new13F-HRTimeline
UBS Group AGgroup of 2 filers holding344,065$11.7M-736,196Timeline
Slate Path Capital LP319,000$10.8M0.15%013F-HRTimeline
LORD, ABBETT & CO. LLC306,560$10.4M0.03%+111,20513F-HRTimeline
ExodusPoint Capital Management, LP304,334$10.3M0.1%new13F-HRTimeline
Eversept Partners, LP275,471$9.34M0.51%-10,29313F-HRTimeline
Affinity Asset Advisors, LLC275,000$9.32M0.46%013F-HRTimeline
SEB Asset Management AB272,654$9.24M0.03%013F-HRTimeline
Atle Fund Management AB248,848$8.43M2.27%+154,05213F-HRTimeline
VANGUARD GROUP INCgroup of 3 filers holding239,870$8.13M+66,666Timeline
GILDER GAGNON HOWE & CO LLC224,070$7.59M0.08%-17,40513F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…218,749$7.41M<0.01%-4,897,06913F-HRTimelineGroup
Ensign Peak Advisors, Inc212,423$7.2M0.01%-36,76713F-HRTimeline
ArrowMark Colorado Holdings LLC211,843$7.18M0.3%-47,68113F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\199,931$6.78M<0.01%+75,15613F-HRTimelineGroup
Decheng Capital LLC176,887$5.99M0.82%-148,17013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC172,663$5.85M<0.01%013F-HRTimeline
PEREGRINE CAPITAL MANAGEMENT LLC169,488$5.74M0.19%-9,00513F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.168,901$5.72M0.01%new13F-HRTimelineGroup
Mizuho Markets Cayman LPin group MIZUHO FINANCIAL GROUP INC150,539$5.1M0.19%+98,31213F-HRTimelineGroup
TD Asset Management Inc148,400$5.03M<0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd145,008$4.91M0.06%+24913F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC144,512$4.9M0.04%new13F-HRTimelineGroup
DCF Advisers, LLC141,000$4.78M1.25%-19,60013F-HRTimeline
KORNITZER CAPITAL MANAGEMENT INC /KS139,933$4.74M0.1%new13F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.122,728$4.16M0.04%new13F-HRTimelineGroup
Handelsbanken Fonder AB122,400$4.15M0.01%-296,50013F-HRTimeline
Swiss National Bank121,100$4.1M<0.01%+32,20013F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.120,561$4.09M<0.01%new13F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC118,623$4.02M0.19%013F-HRTimelineGroup
ALPS ADVISORS INC118,145$4M0.02%+24,54913F-HRTimeline
STATE STREET CORPin group STATE STREET CORP115,215$3.9M<0.01%+52,12513F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC111,819$3.79M0.02%+53,38513F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC105,169$3.56M<0.01%+77313F-HRTimelineGroup
Swedbank ABin group Swedbank AB104,100$3.53M<0.01%+3,20013F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …96,232$3.26M<0.01%+84,93013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP93,971$3.18M<0.01%+61,75313F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC92,026$3.12M0.01%+49,00513F-HRTimelineGroup
Moody Aldrich Partners LLC90,617$3.07M0.55%-24,35813F-HRTimeline
Schonfeld Strategic Advisors LLC89,765$3.04M0.02%new13F-HRTimeline
Bellevue Group AGin group Bellevue Group AG86,994$2.95M0.06%+59,33313F-HRTimelineGroup
ALGERT GLOBAL LLC81,340$2.76M0.03%new13F-HRTimeline
Man Group plcin group Man Group plc80,832$2.74M0.01%new13F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL79,460$2.69M0.01%new13F-HRTimeline
Y-Intercept (Hong Kong) Ltd78,136$2.65M0.05%new13F-HRTimeline
STEMPOINT CAPITAL LP77,589$2.63M0.46%-103,06913F-HRTimeline
Headlands Technologies LLC72,335$2.45M0.26%+44,65913F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…67,418$2.28M<0.01%+13,08913F-HR/ATimeline
Pavaki Capital Management LLC66,600$2.26M1.29%+30,00013F-HRTimeline
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…63,298$2.15M<0.01%+16,36213F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.59,477$2.02M0.33%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…58,707$1.99M<0.01%-25,67813F-HRTimelineGroup
China Universal Asset Management Co., L…48,605$1.65M0.1%+4,90213F-HRTimeline
Qube Research & Technologies Ltd47,090$1.6M<0.01%new13F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC45,115$1.53M0.01%-9,08013F-HRTimelineGroup
Palo Alto Investors LP44,359$1.5M0.21%new13F-HR/ATimeline
Knights of Columbus Asset Advisors LLC43,800$1.48M0.07%+7,61013F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP43,108$1.46M<0.01%-223,99713F-HRTimelineGroup
Fieldview Capital Management, LLC41,842$1.42M0.4%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO40,868$1.39M<0.01%-14,76913F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc39,343$1.33M<0.01%+5,86713F-HRTimelineGroup
Ishara Investments LP36,900$1.25M0.92%013F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC35,756$1.21M0.02%+8,42013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS35,710$1.21M<0.01%-1,74013F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD33,159$1.12M<0.01%+12,61213F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC32,999$1.12M<0.01%new13F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP31,851$1.08M<0.01%+2,63013F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…31,355$1.06M<0.01%+10,43413F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd30,593$1.04M0.01%new13F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC27,050$917K<0.01%013F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding24,327$824K+465Timeline
Eleva Capital SAS25,721$823K0.24%013F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC22,691$769K<0.01%+12,30713F-HRTimelineGroup
HighVista Strategies LLC20,905$708K0.16%+83813F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA20,420$692K<0.01%+1,84513F-HRTimelineGroup
DNB Asset Management ASin group DNB Asset Management AS20,090$681K<0.01%-1,46813F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC19,894$674K<0.01%-2,56413F-HRTimelineGroup
Engineers Gate Manager LP19,529$662K0.01%new13F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…19,518$661K<0.01%+4,12113F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN18,038$611K<0.01%+17,13813F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM16,656$564K<0.01%+4,28113F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC15,520$526K<0.01%-3013F-HRTimelineGroup
SBI Okasan Asset Management Co.Ltd.14,900$505K0.02%013F-HRTimeline
AlphaCentric Advisors LLC14,868$504K0.43%+21213F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA14,362$487K<0.01%+3,04813F-HRTimelineGroup
KLP KAPITALFORVALTNING AS13,700$464K<0.01%+3,80013F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…12,480$423K<0.01%013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP12,001$407K<0.01%new13F-HRTimelineGroup
PSP Research LLC12,000$407K0.22%-3,00013F-HRTimeline
PTM WEALTH MANAGEMENT, LLC12,900$382K0.17%013F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…10,763$365K0.08%+3,44413F-HRTimelineGroup
Financiere des Professionnels - Fonds d…10,744$364K0.02%new13F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC10,061$341K<0.01%new13F-HRTimelineGroup
Caitong International Asset Management …9,682$328K0.05%+5,90613F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…9,548$324K<0.01%-7,25213F-HRTimelineGroup
LETKO, BROSSEAU & ASSOCIATES INC9,475$321K<0.01%-2,30013F-HRTimeline
BAMCO INC /NY/in group Baron Capital9,000$305K<0.01%new13F-HRTimelineGroup
AdvisorNet Financial, Inc8,375$284K0.01%+5,81013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…8,175$277K<0.01%+1,64213F-HRTimelineGroup
Creative Planningin group Creative Planning8,135$276K<0.01%-22213F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC8,072$274K<0.01%-13,70813F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC8,026$272K<0.01%+3,26013F-HRTimelineGroup
Mesirow Financial Investment Management…7,465$253K<0.01%-7,96513F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…7,291$247K<0.01%-1,82813F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\7,286$247K<0.01%+1,81213F-HRTimelineGroup
Persistent Asset Partners Ltd7,284$247K0.08%new13F-HRTimeline
Wealth Management Associates, Inc.7,055$239K0.07%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS7,008$238K<0.01%new13F-HRTimeline
Centiva Capital, LP7,000$237K0.01%new13F-HRTimeline
Invesco Ltd.in group Invesco Ltd.6,617$224K<0.01%-67413F-HRTimelineGroup
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC6,400$217K<0.01%-5813F-HRTimelineGroup
Allianz Asset Management GmbHin group Allianz SE6,600$211K<0.01%013F-HRTimelineGroup
Quarry LP4,544$154K0.02%+4413F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…4,500$153K<0.01%+3,30213F-HRTimelineGroup
Mitsubishi UFJ Trust & Banking Corpin group Mitsubishi UFJ Trust & Bankin…4,330$147K<0.01%new13F-HRTimelineGroup
SG Americas Securities, LLC3,384$115K<0.01%new13F-HRTimeline
Quantbot Technologies LP2,694$91.3K<0.01%new13F-HRTimeline
KBC Group NVin group KBC Group NV2,483$84K<0.01%+1,31213F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.2,434$82.5K<0.01%-11213F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/1,813$61.4K<0.01%-20413F-HRTimelineGroup
Federation des caisses Desjardins du Qu…1,785$60.5K<0.01%new13F-HRTimeline
Parallel Advisors, LLC1,400$47.4K<0.01%-1013F-HRTimeline
Bayforest Capital Ltd1,277$43.3K0.04%new13F-HRTimeline
THURSTON, SPRINGER, MILLER, HERD & TITA…1,067$36.2K0.01%013F-HRTimeline
Farther Finance Advisors, LLC1,006$34.1K<0.01%-1213F-HRTimeline
Cheviot Value Management, LLC796$27K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.615$20.8K<0.01%new13F-HRTimeline
Roxbury Financial LLC563$19.1K0.02%013F-HRTimeline
Stone House Investment Management, LLC325$11K<0.01%013F-HRTimeline
Global Retirement Partners, LLC270$9.15K<0.01%13F-HRTimeline
FIL Ltdin group FIL Ltd217$7.35K<0.01%013F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC209$7.08K<0.01%new13F-HRTimeline
Arax Advisory Partners178$6.03K<0.01%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP168$5.58K<0.01%-36213F-HRTimelineGroup
Continuum Advisory, LLC154$5.22K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.139$4.71K<0.01%new13F-HRTimelineGroup
Basecamp Wealth Advisors LLC99$3.35K<0.01%013F-HRTimeline
Clearstead Advisors, LLC76$2.58K<0.01%new13F-HRTimeline
Essential Partners LLC53$1.8K<0.01%+5113F-HRTimeline
Integrated Wealth Concepts LLC32$1.08K<0.01%new13F-HRTimeline
Allworth Financial LP25$848<0.01%+1613F-HRTimeline
True Wealth Design, LLC21$712<0.01%013F-HRTimeline
FIDUCIARY FINANCIAL ADVISORS13$441<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…11$373<0.01%-113F-HRTimelineGroup
GAMMA Investing LLC9$305<0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC3$102<0.01%new13F-HRTimeline
IFP Advisors, Inc3$102<0.01%013F-HRTimeline
DUPONT CAPITAL MANAGEMENT CORP1$34<0.01%013F-HRTimeline