YMAB

Y-mAbs Therapeutics
YMAB

Delisted

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

117 hedge funds and large institutions have $804M invested in Y-mAbs Therapeutics in 2021 Q1 according to their latest regulatory filings, with 18 funds opening new positions, 55 increasing their positions, 32 reducing their positions, and 14 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more ownership

Funds ownership:

more funds holding

Funds holding:

28% less capital invested

Capital invested by funds: $1.11B → $804M (-$308M)

50% less funds holding in top 10

Funds holding in top 10: 42 (-2)

100% less call options, than puts

Call options by funds: $0 | Put options by funds: $496K

Holders
117
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
Puts
$496K
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
76
$376K
77
$374K
78
$363K
79
$357K
80
$315K
81
$310K
82
$296K
83
$289K
84
$282K
85
$271K
86
$269K
87
$267K
88
$257K
89
$251K
90
$243K
91
$243K
92
$233K
93
$222K
94
$218K
95
$210K
96
$205K
97
$137K
98
$122K
99
$106K
100
$89K