YMAB

Y-mAbs Therapeutics
YMAB

Delisted

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

106 hedge funds and large institutions have $819M invested in Y-mAbs Therapeutics in 2020 Q3 according to their latest regulatory filings, with 10 funds opening new positions, 42 increasing their positions, 38 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

23% less first-time investments, than exits

New positions opened: 10 | Existing positions closed: 13

50% less funds holding in top 10

Funds holding in top 10: 42 (-2)

Holders
106
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
Net Calls
Net Calls Change

Top Buyers

1 +$12.6M
2 +$5.61M
3 +$4.39M
4
Artisan Partners
Artisan Partners
Wisconsin
+$3.81M
5
State Street
State Street
Massachusetts
+$3.62M

Top Sellers

1 -$15.4M
2 -$7.53M
3 -$6.79M
4
Invesco
Invesco
Georgia
-$3.67M
5
Two Sigma Investments
Two Sigma Investments
New York
-$2.12M
Name Holding Trade Value Shares
Change
Change in
Stake
51
$853K
52
$790K
53
$769K
54
$769K
55
$757K
56
$687K
57
$685K
58
$643K
59
$632K
60
$596K
61
$539K
62
$529K
63
$516K
64
$515K
65
$469K
66
$460K
67
$451K
68
$388K
69
$380K
70
$368K
71
$356K
72
$352K
73
$340K
74
$335K
75
$319K