YMAB

Y-mAbs Therapeutics
YMAB

Delisted

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

80 hedge funds and large institutions have $523M invested in Y-mAbs Therapeutics in 2020 Q1 according to their latest regulatory filings, with 9 funds opening new positions, 31 increasing their positions, 30 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed

more ownership

Funds ownership:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding in top 10

Funds holding in top 10:

less funds holding

Funds holding:

10% less first-time investments, than exits

New positions opened: 9 | Existing positions closed: 10

14% less capital invested

Capital invested by funds: $606M → $523M (-$83.8M)

Holders
80
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
Puts
Net Calls
Net Calls Change

Top Buyers

1 +$14.3M
2 +$7.51M
3 +$4.22M
4
PC
Polar Capital
United Kingdom
+$3.55M
5
Aviva
Aviva
United Kingdom
+$3.46M
Name Holding Trade Value Shares
Change
Change in
Stake
76
$38K
77
$11K
78
$6K
79
$3K
80
$3K
81
82
83
84
85
86
87
88
89
90