YMAB

Y-mAbs Therapeutics
YMAB

Delisted

YMAB was delisted on the 15th of September, 2025.

102 hedge funds and large institutions have $128M invested in Y-mAbs Therapeutics in 2025 Q1 according to their latest regulatory filings, with 17 funds opening new positions, 40 increasing their positions, 28 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

35% less first-time investments, than exits

New positions opened: 17 | Existing positions closed: 26

43% less capital invested

Capital invested by funds: $225M → $128M (-$97.9M)

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
102
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$171K
Puts
$9K
Net Calls
Net Calls Change

Top Buyers

1 +$2.55M
2 +$1.91M
3 +$1.65M
4
Morgan Stanley
Morgan Stanley
New York
+$795K
5
Bank of America
Bank of America
North Carolina
+$687K
Name Holding Trade Value Shares
Change
Change in
Stake
New York State Common Retirement Fund
76
New York State Common Retirement Fund
New York
$44.8K
ProShare Advisors
77
ProShare Advisors
Maryland
$44.8K
CUAMC
78
China Universal Asset Management Company
China
$39.8K
Legal & General Group
79
Legal & General Group
United Kingdom
$38K
PFSRSONJ
80
Police & Firemen's Retirement System of New Jersey
New Jersey
$32.5K
BIG
81
Brooklyn Investment Group
New York
$26.2K
PD
82
Point72 (DIFC)
United Arab Emirates
$22.4K
TRCT
83
Tower Research Capital (TRC)
New York
$22.2K
Lazard Asset Management
84
Lazard Asset Management
New York
$21K
AIP
85
Ameritas Investment Partners
Nebraska
$16.4K
California State Teachers Retirement System (CalSTRS)
86
California State Teachers Retirement System (CalSTRS)
California
$11.8K
Carson Wealth (CWM LLC)
87
Carson Wealth (CWM LLC)
Nebraska
$10K
FFA
88
Farther Finance Advisors
California
$8.99K
Mirae Asset Global Investments
89
Mirae Asset Global Investments
South Korea
$7.24K
Royal Bank of Canada
90
Royal Bank of Canada
Ontario, Canada
$7K
AB
91
Amalgamated Bank
New York
$5K
GFM
92
GF Fund Management
China
$4.92K
Nisa Investment Advisors
93
Nisa Investment Advisors
Missouri
$1.15K
Simplex Trading
94
Simplex Trading
Illinois
$1K
Daiwa Securities Group
95
Daiwa Securities Group
Japan
$1K
RIL
96
Rothschild Investment LLC
Illinois
$487
SC
97
SouthState Corp
Florida
$302
CA
98
CoreCap Advisors
Michigan
$204
EWA
99
EverSource Wealth Advisors
Alabama
$195
SCM
100
Sterling Capital Management
North Carolina
$168