YMAB

Y-mAbs Therapeutics
YMAB

Overview Fund Activity
Delisted

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

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96 hedge funds and large institutions have $126M invested in Y-mAbs Therapeutics in 2025 Q2 according to their latest regulatory filings, with 13 funds opening new positions, 28 increasing their positions, 36 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
96
Holders Change
-6
Holders Change %
-5.88%
% of All Funds
1.29%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
13
Increased
28
Reduced
36
Closed
19
Calls
$151K
Puts
$2K
Net Calls
+$149K
Net Calls Change
-$13K

Top Buyers

1
NCM
Nantahala Capital Management
Connecticut
+$1.59M
2
ACA
Acorn Capital Advisors
New York
+$828K
3
GCP
GSA Capital Partners
United Kingdom
+$746K
4
SCM
Stonepine Capital Management
Oregon
+$695K
5
UBS Group
UBS Group
Switzerland
+$620K

Top Sellers

1
Pictet Asset Management
Pictet Asset Management
Switzerland
-$1.96M
2
Millennium Management
Millennium Management
New York
-$1.47M
3
Morgan Stanley
Morgan Stanley
New York
-$936K
4
Wellington Management Group
Wellington Management Group
Massachusetts
-$904K
5
BlackRock
BlackRock
New York
-$694K
Name Holding Trade Value Shares
Change 		Shares
Change %
AIP
76
Ameritas Investment Partners
Nebraska
$16.7K – – –
California State Teachers Retirement System (CalSTRS)
77
California State Teachers Retirement System (CalSTRS)
California
$12K – – –
Mirae Asset Global Investments
78
Mirae Asset Global Investments
South Korea
$7.89K +$1.11K +245 +16%
Royal Bank of Canada
79
Royal Bank of Canada
Ontario, Canada
$7K -$426 -98 -6%
EWA
80
EverSource Wealth Advisors
Alabama
$5.71K +$5.51K +1,221 +2,775%
GFM
81
GF Fund Management
China
$5.01K – – –
AB
82
Amalgamated Bank
New York
$5K – – –
IA
83
IFP Advisors
Florida
$1.51K +$1.51K +334 New
PD
84
Point72 (DIFC)
United Arab Emirates
$1.29K -$21.5K -4,771 -94%
Daiwa Securities Group
85
Daiwa Securities Group
Japan
$1K – – –
AF
86
Allworth Financial
California
$907 +$907 +201 New
PNC Financial Services Group
87
PNC Financial Services Group
Pennsylvania
$582 +$582 +129 New
RWM
88
Rialto Wealth Management
New York
$551 +$551 +122 New
Nisa Investment Advisors
89
Nisa Investment Advisors
Missouri
$469 -$699 -155 -60%
SCM
90
Sterling Capital Management
North Carolina
$392 +$221 +49 +129%
RIL
91
Rothschild Investment LLC
Illinois
$226 -$271 -60 -55%
TWD
92
True Wealth Design
Ohio
$131 +$54 +12 +71%
SS
93
SBI Securities
Japan
$72 – – –
CA
94
Clearstead Advisors
Ohio
$41 +$41 +9 New
Osaic Holdings
95
Osaic Holdings
Arizona
$18 +$18 +4 New
FFA
96
Farther Finance Advisors
California
$5 -$9.99K -1,997 -100%
Pictet Asset Management
97
Pictet Asset Management
Switzerland
– -$1.96M -441,934 Closed
Wellington Management Group
98
Wellington Management Group
Massachusetts
– -$904K -204,052 Closed
WB
99
WesBanco Bank
West Virginia
– -$244K -55,000 Closed
VIA
100
Virtus Investment Advisers
Connecticut
– -$163K -36,751 Closed
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