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
26
$3.13M
27
$2.81M
28
$2.3M
29
$2.23M
30
$2M
31
$1.76M
32
$1.76M
33
$1.68M
34
$1.66M
35
$1.61M
36
$1.43M
37
$1.32M
38
$1.17M
39
$1.07M
40
$1M
41
$990K
42
$990K
43
$932K
44
$847K
45
$732K
46
$658K
47
$615K
48
$600K
49
$584K
50
$553K