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.

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