YMAB

Y-mAbs Therapeutics
YMAB

Delisted

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

98 hedge funds and large institutions have $107M invested in Y-mAbs Therapeutics in 2023 Q3 according to their latest regulatory filings, with 9 funds opening new positions, 31 increasing their positions, 36 reducing their positions, and 6 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

more ownership

Funds ownership:

more funds holding in top 10

Funds holding in top 10:

14% less repeat investments, than reductions

Existing positions increased: 31 | Existing positions reduced: 36

19% less capital invested

Capital invested by funds: $132M → $107M (-$25.2M)

Holders
98
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$16K
Puts
Net Calls
Net Calls Change

Top Buyers

1 +$2.09M
2 +$856K
3 +$611K
4
GCP
GSA Capital Partners
United Kingdom
+$505K
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$402K

Top Sellers

1 -$1.66M
2 -$556K
3 -$500K
4
AllianceBernstein
AllianceBernstein
Tennessee
-$489K
5
N
Nuveen
North Carolina
-$362K
Name Holding Trade Value Shares
Change
Change in
Stake
1
$13.5M
2
$12.2M
3
$12M
4
$11.5M
5
$7.35M
6
$4.42M
7
$4.04M
8
$3.87M
9
$2.89M
10
$2.26M
11
$2.12M
12
$1.95M
13
$1.89M
14
$1.76M
15
$1.66M
16
$1.56M
17
$1.36M
18
$1.34M
19
$1.32M
20
$1.29M
21
$1.1M
22
$1.04M
23
$1M
24
$857K
25
$748K