Y-Mabs Therapeutics Inc

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Y-Mabs Therapeutics Inc
TickerYMAB
CIK #0001722964
CUSIP984241109
SectorLife Sciences - Pharmaceutical Preparations
Address750 Third Avenue 9th Floor, New York, NY 10017
Source [EDGAR]
CIK Filing 2011 - 2025
[0001722964] 10-K
[0001722964] 10-Q
[0001722964] 3
[0001722964] 4
[0001722964] 8-K
[0001722964] SC 13D
[0001722964] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Glazer Capital LLC Y-Mabs Therapeutics Inc [2025-08-15] 0.0
Beryl Capital Management LLC Y-Mabs Therapeutics Inc [2025-08-12] 0.0
Caligan Partners LP Y-Mabs Therapeutics Inc [2025-05-14] 0.0
Paradigm Biocapital Advisors LP Y-Mabs Therapeutics Inc [2024-04-08] 5.02
Acorn BioVentures LP Y-Mabs Therapeutics Inc [2023-04-03] 2.2
WG Biotech APS Y-Mabs Therapeutics Inc [2023-02-14] 0.6
Vanguard Group Inc Y-Mabs Therapeutics Inc [2023-02-09] 5.17
BlackRock Inc Y-Mabs Therapeutics Inc [2021-02-02] 6.0
Cheung Nai-Kong V Y-Mabs Therapeutics Inc [2020-08-26] 8.64
BlackRock Inc Y-Mabs Therapeutics Inc [2020-02-07] 5.1
Wellington Management Group LLP Y-Mabs Therapeutics Inc [2020-01-28] 6.18
Memorial Sloan-Kettering Cancer Center Y-Mabs Therapeutics Inc [2018-11-07] 8.04
Sofinnova Venture Partners X LP Y-Mabs Therapeutics Inc [2018-10-02] 11.0
HBM Healthcare Investments Cayman Ltd Y-Mabs Therapeutics Inc [2018-10-01] 9.0
Form 3/4/5 Filer 2011 - 2025
Y-mAbs Therapeutics, Inc.
Hamill Laura
Tyagi ASHU
Wedell-Wedellsborg Johan
Healy James
Gill David N
Gad Thomas
Rossi Michael J
Pfreundschuh Peter P
Gentilcore Douglas J
Wilms Joris
LaRocca John
Lund-Hansen Torben
Tagliaferri Mary
Ber Gerard
Kruse Bo
Smith Susan Laura
Rajah Vignesh
Lisby Steen
WG Biotech ApS
Moller-San Pedro Claus Juan
Herman Philip Karl
Ahmed Mahiuddin
Raskin Gregory S
Buschle Michael
Form 13F Holdings
Firm Period DFND Voting Shares
Paradigm Biocapital Advisors LP [2025-06-30] SOLE 4,236,346 4,236,346
Acorn Capital Advisors LLC [2025-06-30] SOLE 3,418,995 3,418,995
BlackRock, Inc. [2025-06-30] SOLE 2,707,643 2,748,077
Caligan Partners LP [2025-06-30] SOLE 2,342,609 2,342,609
Sofinnova Investments Inc [2025-06-30] SOLE 2,194,278 2,194,278
Vanguard Group Inc [2025-06-30] SOLE 0 1,896,342
Polar Capital Holdings Plc [2025-06-30] DFND 1,789,800 1,789,800
Geode Capital Management LLC [2025-06-30] DFND 848,461 848,461
State Street Corp [2025-06-30] DFND 740,122 780,145
Boothbay Fund Management LLC [2025-06-30] OTR 0 693,693
D. E. Shaw & Co., Inc. [2025-06-30] DFND 516,857 516,857
Dimensional Fund Advisors LP [2025-06-30] SOLE 336,249 382,721
Nantahala Capital Management LLC [2025-06-30] SOLE 351,878 351,878
Soleus Capital Management LP [2025-06-30] SOLE 349,982 349,982
Northern Trust Corp [2025-06-30] DFND 301,885 302,320
Morgan Stanley [2025-06-30] DFND 285,962 292,567
Stonepine Capital Management LLC [2025-06-30] SOLE 285,300 285,300
Charles Schwab Investment Management Inc [2025-06-30] SOLE 278,179 278,179
Bank of America Corp /DE/ [2025-06-30] DFND 5,721 274,164
AQR Capital Management LLC [2025-06-30] DFND 246,293 246,298
Citadel Advisors LLC [2025-06-30] DFND 231,642 231,642
UBS Group AG [2025-06-30] DFND 229,072 229,072
Goldman Sachs Group Inc [2025-06-30] DFND 212,751 212,751
GSA Capital Partners LLP [2025-06-30] SOLE 186,062 186,062
Renaissance Technologies LLC [2025-06-30] SOLE 164,100 164,100
JPMorgan Chase & Co [2025-06-30] DFND 146,615 164,055
Infinitum Asset Management LLC [2025-06-30] SOLE 155,529 155,529
Jacobs Levy Equity Management Inc [2025-06-30] SOLE 142,641 142,641
Millennium Management LLC [2025-06-30] SOLE 139,955 139,955
Two Sigma Investments LP [2025-06-30] SOLE 125,298 125,298
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