YMAB

Y-mAbs Therapeutics
YMAB

Overview Fund Activity
Delisted

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

Back to rankings

100 hedge funds and large institutions have $303M invested in Y-mAbs Therapeutics in 2022 Q3 according to their latest regulatory filings, with 16 funds opening new positions, 29 increasing their positions, 32 reducing their positions, and 7 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
100
Holders Change
+9
Holders Change %
+9.89%
% of All Funds
1.73%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
16
Increased
29
Reduced
32
Closed
7
Calls
$1.78M
Puts
–
Net Calls
+$1.78M
Net Calls Change
-$802K

Top Buyers

1
DCM
Driehaus Capital Management
Illinois
+$4.29M
2
State Street
State Street
Massachusetts
+$2.54M
3
Citadel Advisors
Citadel Advisors
Florida
+$1.3M
4
Wellington Management Group
Wellington Management Group
Massachusetts
+$1.13M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$1.07M

Top Sellers

1
AllianceBernstein
AllianceBernstein
Tennessee
-$9.6M
2
Fidelity Investments
Fidelity Investments
Massachusetts
-$8.54M
3
Morgan Stanley
Morgan Stanley
New York
-$1.71M
4
Invesco
Invesco
Georgia
-$1.42M
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$1.26M
Name Holding Trade Value Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$41.8M -$1.14M -78,827 -3%
SI
2
Sofinnova Investments
California
$31.6M – – –
AllianceBernstein
3
AllianceBernstein
Tennessee
$31M -$9.6M -665,801 -24%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$28.1M +$1.13M +78,090 +4%
Vanguard Group
5
Vanguard Group
Pennsylvania
$27.7M -$137K -9,495 -0.5%
State Street
6
State Street
Massachusetts
$27.7M +$2.54M +175,997 +10%
Fidelity Investments
7
Fidelity Investments
Massachusetts
$19.9M -$8.54M -592,385 -30%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$9.13M +$97K +6,727 +1%
MB
9
MPM BioImpact
Massachusetts
$6.4M – – –
Walleye Capital
10
Walleye Capital
New York
$6.31M +$306K +21,204 +5%
AG
11
Artal Group
Luxembourg
$5.77M – – –
Northern Trust
12
Northern Trust
Illinois
$4.75M -$58.8K -4,075 -1%
DCM
13
Driehaus Capital Management
Illinois
$4.29M +$4.29M +297,252 New
Morgan Stanley
14
Morgan Stanley
New York
$3.68M -$1.71M -118,664 -32%
Charles Schwab
15
Charles Schwab
California
$3.58M +$11.6K +807 +0.3%
PA
16
Perceptive Advisors
New York
$3.06M – – –
MSKCC
17
Memorial Sloan Kettering Cancer Center
New York
$2.76M – – –
Goldman Sachs
18
Goldman Sachs
New York
$2.64M +$452K +31,351 +21%
CS
19
Candriam SCA
Luxembourg
$2.49M – – –
LOAMS
20
Lombard Odier Asset Management (Switzerland)
Switzerland
$2.43M -$175K -12,138 -7%
CAM
21
Cormorant Asset Management
Massachusetts
$2.16M – – –
Dimensional Fund Advisors
22
Dimensional Fund Advisors
Texas
$1.91M -$1.26M -87,356 -40%
Renaissance Technologies
23
Renaissance Technologies
New York
$1.84M -$316K -21,900 -15%
D.E. Shaw & Co
24
D.E. Shaw & Co
New York
$1.67M +$1.07M +74,103 +179%
Bank of New York Mellon
25
Bank of New York Mellon
New York
$1.63M +$154K +10,698 +10%
1
2 3 4 5