YMAB

Y-mAbs Therapeutics
YMAB

Overview Fund Activity
Delisted

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

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112 hedge funds and large institutions have $225M invested in Y-mAbs Therapeutics in 2024 Q4 according to their latest regulatory filings, with 18 funds opening new positions, 39 increasing their positions, 31 reducing their positions, and 11 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
112
Holders Change
+7
Holders Change %
+6.67%
% of All Funds
1.49%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
18
Increased
39
Reduced
31
Closed
11
Calls
$50K
Puts
$8K
Net Calls
+$42K
Net Calls Change
-$516K

Top Buyers

1
CP
Caligan Partners
New York
+$4.48M
2
LGM
Logos Global Management
California
+$1.57M
3
PBA
Paradigm Biocapital Advisors
New York
+$1.17M
4
BFM
Boothbay Fund Management
New York
+$1.07M
5
State Street
State Street
Massachusetts
+$819K

Top Sellers

1
CAM
Cormorant Asset Management
Massachusetts
-$8.03M
2
Acadian Asset Management
Acadian Asset Management
Massachusetts
-$1.39M
3
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$1.35M
4
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
-$1.24M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
-$743K
Name Holding Trade Value Shares
Change 		Shares
Change %
Bessemer Group
101
Bessemer Group
New Jersey
$1K – – –
BIG
102
Brooklyn Investment Group
New York
$995 +$995 +127 New
PWA
103
Physician Wealth Advisors
Utah
$682 +$682 +87 New
Nisa Investment Advisors
104
Nisa Investment Advisors
Missouri
$423 -$862 -110 -67%
EBA
105
Eagle Bay Advisors
New York
$392 – – –
CIAM
106
Caitong International Asset Management
Hong Kong
$352 +$352 +45 New
RIL
107
Rothschild Investment LLC
Illinois
$313 +$117 +15 +60%
SCM
108
Sterling Capital Management
North Carolina
$298 – – –
GI
109
GAMMA Investing
California
$258 -$55 -7 -18%
US Bancorp
110
US Bancorp
Minnesota
$180 +$47 +6 +35%
SS
111
SBI Securities
Japan
$125 +$125 +16 New
IA
112
IFP Advisors
Florida
$94 – – –
FFA
113
Farther Finance Advisors
California
$8 – – –
Acadian Asset Management
114
Acadian Asset Management
Massachusetts
– -$1.39M -105,777 Closed
Connor, Clark & Lunn Investment Management (CC&L)
115
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
– -$1.24M -94,225 Closed
EC
116
EntryPoint Capital
New York
– -$224K -17,071 Closed
EFMC
117
Empire Financial Management Company
New York
– -$210K -16,000 Closed
HF
118
HRT Financial
New York
– -$187K -14,260 Closed
Lazard Asset Management
119
Lazard Asset Management
New York
– -$55K -4,218 Closed
LC
120
Lindbrook Capital
California
– -$421 -32 Closed
SAM
121
Smartleaf Asset Management
Massachusetts
– -$401 -31 Closed
PA
122
Parallel Advisors
California
– -$237 -18 Closed
Allspring Global Investments
123
Allspring Global Investments
North Carolina
– -$105 -8 Closed
CPA
124
Capital Performance Advisors
California
– -$39 -3 Closed
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