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OmniAb
OABI

Overview Fund Activity

151 hedge funds and large institutions have $152M invested in OmniAb in 2025 Q1 according to their latest regulatory filings, with 16 funds opening new positions, 43 increasing their positions, 54 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
151
Holders Change
-12
Holders Change %
-7.36%
% of All Funds
2.05%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
16
Increased
43
Reduced
54
Closed
26
Calls
$2K
Puts
$7K
Net Calls
-$5K
Net Calls Change
-$109K

Top Buyers

1
WCM
Whitefort Capital Management
New York
+$9.4M
2
PMG
Private Management Group
California
+$712K
3
Vanguard Group
Vanguard Group
Pennsylvania
+$298K
4
Macquarie Group
Macquarie Group
Australia
+$293K
5
RA
Royce & Associates
New York
+$264K

Top Sellers

1
KCM
Kornitzer Capital Management
Kansas
-$3.18M
2
FSCM
First Sabrepoint Capital Management
Texas
-$2.52M
3
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$920K
4
CC
Chicago Capital
Illinois
-$852K
5
OCM
Orchard Capital Management
Illinois
-$774K
Name Holding Trade Value Shares
Change 		Shares
Change %
HighTower Advisors
76
HighTower Advisors
Illinois
$52.5K +$2.56K +1,065 +5%
CWM
77
CIBC World Markets
New York
$50.8K +$50.8K +21,157 New
SEI Investments
78
SEI Investments
Pennsylvania
$49K -$55.4K -23,084 -53%
SPA
79
Sherbrooke Park Advisers
New York
$48.9K +$7.59K +3,162 +18%
LPL Financial
80
LPL Financial
California
$48K +$1.11K +461 +2%
CPA
81
Court Place Advisors
Maryland
$48K -$8.53K -3,552 -15%
BP
82
BBR Partners
New York
$48K – – –
PFSRSONJ
83
Police & Firemen's Retirement System of New Jersey
New Jersey
$44.7K – – –
CAPTRUST Financial Advisors
84
CAPTRUST Financial Advisors
North Carolina
$40.4K +$581 +242 +1%
CA
85
CWC Advisors
Oregon
$40.3K +$9.73K +4,055 +32%
AI
86
Atom Investors
Texas
$39.3K -$127 -53 -0.3%
PNC Financial Services Group
87
PNC Financial Services Group
Pennsylvania
$39.1K +$28.8K +11,986 +279%
TWM
88
Thrive Wealth Management
Pennsylvania
$38.6K – – –
Squarepoint
89
Squarepoint
New York
$35.6K -$58.6K -24,425 -62%
PP
90
PDT Partners
New York
$35.3K -$99.7K -41,538 -74%
Public Employees Retirement Association of Colorado
91
Public Employees Retirement Association of Colorado
Colorado
$34K – – –
ECM
92
ExodusPoint Capital Management
New York
$34K +$34K +14,315 New
Victory Capital Management
93
Victory Capital Management
Texas
$28.4K -$718 -299 -2%
New York State Common Retirement Fund
94
New York State Common Retirement Fund
New York
$28K – – –
HSBC Holdings
95
HSBC Holdings
United Kingdom
$26.3K +$680 +285 +3%
Cerity Partners
96
Cerity Partners
New York
$25.7K +$25.7K +10,693 New
AQR Capital Management
97
AQR Capital Management
Connecticut
$24.7K +$24.7K +10,271 New
BCA
98
Bay Colony Advisors
Massachusetts
$24.2K – – –
BNP Paribas Financial Markets
99
BNP Paribas Financial Markets
France
$23.9K -$18.2K -7,591 -43%
Millennium Management
100
Millennium Management
New York
$23.6K -$9.89K -55,074 -29%
2 3
4
5 6