YMAB

Y-mAbs Therapeutics

YMAB

Delisted

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

91 hedge funds and large institutions have $93.6M invested in Y-mAbs Therapeutics in 2022 Q4 according to their latest regulatory filings, with 20 funds opening new positions, 25 increasing their positions, 33 reducing their positions, and 29 closing their positions.

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New

Increased

Maintained

Reduced

Closed

less funds holding

Funds holding: →

less ownership

Funds ownership: →

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less first-time investments, than exits

New positions opened: | Existing positions closed:

50% less funds holding in top 10

Funds holding in top 10: 2 → 1 (-1)

69% less capital invested

Capital invested by funds: $303M → $93.6M (-$210M)

Holders

Holders Change

Holders Change %

% of All Funds

Holding in Top 10

Holding in Top 10 Change

Holding in Top 10 Change %

% of All Funds

New

Increased

Reduced

Closed

Calls

$92K

Puts

–

Net Calls

Net Calls Change

Top Buyers

1		+$5.39M
2		+$4.25M
3		+$2.34M
4	Point72 Asset Management Stamford, Connecticut	+$2.19M
5	D.E. Shaw & Co New York	+$1.72M

Top Sellers

1		-$28.1M
2		-$9.73M
3		-$6.72M
4	MB MPM BioImpact Boston, Massachusetts	-$6.4M
5	State Street Boston, Massachusetts	-$5.3M

#	Name	Holding
101	101	–
102	102	–
103	103	–
104	104	–
105	105	–
106	106	–
107	107	–
108	108	–
109	109	–
110	110	–
111	111	–
112	112	–
113	113	–
114	114	–
115	115	–
116	116	–
117	117	–
118	118	–

#	Name	Holding
101	101	–
102	102	–
103	103	–
104	104	–
105	105	–
106	106	–
107	107	–
108	108	–
109	109	–
110	110	–
111	111	–
112	112	–
113	113	–
114	114	–
115	115	–
116	116	–
117	117	–
118	118	–

#	Name	Holding
101	101	–
102	102	–
103	103	–
104	104	–
105	105	–
106	106	–
107	107	–
108	108	–
109	109	–
110	110	–
111	111	–
112	112	–
113	113	–
114	114	–
115	115	–
116	116	–
117	117	–
118	118	–

Y-mAbs Therapeutics YMAB