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
1
$71.6M
2
$57.3M
3
$51.7M
4
$45.2M
5
$36.3M
6
$28.2M
7
$24.5M
8
$20.6M
9
$18.4M
10
$14.3M
11
$12.9M
12
$12.1M
13
$11.6M
14
$10.4M
15
$9.95M
16
$8.8M
17
$8.02M
18
$8.02M
19
$7.74M
20
$6.32M
21
$4.41M
22
$3.77M
23
$3.46M
24
$3.15M
25
$3.15M