YMAB

Y-mAbs Therapeutics
YMAB

Delisted

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

95 hedge funds and large institutions have $132M invested in Y-mAbs Therapeutics in 2023 Q2 according to their latest regulatory filings, with 20 funds opening new positions, 32 increasing their positions, 30 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

1.17% more ownership

Funds ownership: 43.48%44.65% (+1.2%)

7% more repeat investments, than reductions

Existing positions increased: 32 | Existing positions reduced: 30

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

Holders
95
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
$36K
Puts
$11K
Net Calls
Net Calls Change

Top Buyers

1 +$3.29M
2 +$1.84M
3 +$1.73M
4
Jacobs Levy Equity Management
Jacobs Levy Equity Management
New Jersey
+$1.63M
5
Goldman Sachs
Goldman Sachs
New York
+$1.44M

Top Sellers

1 -$2.15M
2 -$1.99M
3 -$1.9M
4
Citadel Advisors
Citadel Advisors
Florida
-$1.86M
5
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$1.07M
Name Holding Trade Value Shares
Change
Change in
Stake
51
$214K
52
$212K
53
$192K
54
$180K
55
$178K
56
$170K
57
$156K
58
$143K
59
$136K
60
$125K
61
$123K
62
$123K
63
$120K
64
$110K
65
$106K
66
$105K
67
$104K
68
$100K
69
$99.3K
70
$97.1K
71
$95.7K
72
$93.2K
73
$89.9K
74
$89.4K
75
$83.1K