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OmniAb
OABI

Overview Fund Activity

147 hedge funds and large institutions have $228M invested in OmniAb in 2022 Q4 according to their latest regulatory filings, with 140 funds opening new positions, 4 increasing their positions, 3 reducing their positions, and 39 closing their positions.

Holders
147
Holders Change
+100
Holders Change %
+212.77%
% of All Funds
2.37%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
140
Increased
4
Reduced
3
Closed
39
Calls
$109K
Puts
$17K
Net Calls
+$92K
Net Calls Change
+$92K

Top Buyers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$23.7M
2
Vanguard Group
2
Vanguard Group
Pennsylvania
$23.1M
3
BlackRock
3
BlackRock
New York
$20.7M
4
Millennium Management
4
Millennium Management
New York
$18.4M
5
Macquarie Group
5
Macquarie Group
Australia
$13.6M

Top Sellers

1
PAMP
1
Polar Asset Management Partners
Ontario, Canada
$0
2
Marshall Wace
2
Marshall Wace
United Kingdom
$0
3
RL
3
RPO LLC
Connecticut
$0
4
GL
4
Governors Lane
New York
$0
5
BCM
5
BlueCrest Capital Management
Jersey
$0
Name Market Value Shares Shares
Change 		Shares
Change %
BCM
151
BlueCrest Capital Management
Jersey
– – -940,514 Closed
MI
152
MMCAP International
Cayman Islands
– – -924,999 Closed
SC
153
Sculptor Capital
New York
– – -912,603 Closed
Nomura Holdings
154
Nomura Holdings
Japan
– – -900,000 Closed
Hudson Bay Capital Management
155
Hudson Bay Capital Management
Connecticut
– – -887,370 Closed
HCM
156
Highbridge Capital Management
New York
– – -749,521 Closed
D.E. Shaw & Co
157
D.E. Shaw & Co
New York
– – -702,724 Closed
SCM
158
Shaolin Capital Management
Florida
– – -700,649 Closed
FTCM
159
Fir Tree Capital Management
New York
– – -677,465 Closed
HIM
160
HGC Investment Management
Ontario, Canada
– – -674,166 Closed
Calamos Advisors
161
Calamos Advisors
Illinois
– – -600,000 Closed
PMAM
162
Picton Mahoney Asset Management
Ontario, Canada
– – -599,994 Closed
PC
163
Periscope Capital
Ontario, Canada
– – -551,600 Closed
SRCM
164
Sage Rock Capital Management
New York
– – -534,723 Closed
TCA
165
Taconic Capital Advisors
New York
– – -500,000 Closed
UOC
166
UBS O'Connor
Illinois
– – -477,246 Closed
WCMNY
167
Westchester Capital Management (New York)
New York
– – -457,315 Closed
Balyasny Asset Management
168
Balyasny Asset Management
Illinois
– – -400,000 Closed
EFI
169
EHP Funds Inc
Canada
– – -376,792 Closed
WAM
170
Weiss Asset Management
Massachusetts
– – -359,321 Closed
AGM
171
Alpine Global Management
New York
– – -300,000 Closed
CCM
172
Context Capital Management
California
– – -294,963 Closed
RCM
173
Radcliffe Capital Management
Pennsylvania
– – -262,094 Closed
MF
174
Magnetar Financial
Illinois
– – -241,410 Closed
GCM
175
Ghisallo Capital Management
Massachusetts
– – -150,000 Closed
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