YMAB

Y-mAbs Therapeutics
YMAB

Delisted

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

117 hedge funds and large institutions have $804M invested in Y-mAbs Therapeutics in 2021 Q1 according to their latest regulatory filings, with 18 funds opening new positions, 55 increasing their positions, 32 reducing their positions, and 14 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more ownership

Funds ownership:

more funds holding

Funds holding:

28% less capital invested

Capital invested by funds: $1.11B → $804M (-$308M)

50% less funds holding in top 10

Funds holding in top 10: 42 (-2)

100% less call options, than puts

Call options by funds: $0 | Put options by funds: $496K

Holders
117
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
$496K
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
51
$1.12M
52
$1.08M
53
$1.03M
54
$974K
55
$965K
56
$951K
57
$882K
58
$806K
59
$776K
60
$684K
61
$665K
62
$629K
63
$584K
64
$578K
65
$538K
66
$538K
67
$535K
68
$510K
69
$459K
70
$445K
71
$435K
72
$429K
73
$406K
74
$393K
75
$390K