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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 %
Deutsche Bank
26
Deutsche Bank
Germany
$1.04M -$464K -193,247 -31%
FSCM
27
First Sabrepoint Capital Management
Texas
$984K -$2.52M -1,050,602 -72%
BFM
28
Boothbay Fund Management
New York
$907K +$7.03K +2,929 +0.8%
TCM
29
Tang Capital Management
California
$720K – – –
UBS Group
30
UBS Group
Switzerland
$639K -$96K -40,016 -13%
Bank of New York Mellon
31
Bank of New York Mellon
New York
$620K -$2.47K -1,029 -0.4%
TA
32
TLS Advisors
Florida
$600K – – –
Goldman Sachs
33
Goldman Sachs
New York
$585K -$732K -304,866 -56%
NL
34
Nuveen LLC
North Carolina
$547K +$547K +227,801 New
KLP
35
Kent Lake PR
Puerto Rico
$540K -$660K -275,000 -55%
Citadel Advisors
36
Citadel Advisors
Florida
$466K -$585K -243,946 -56%
American Century Companies
37
American Century Companies
Missouri
$435K +$58.1K +24,197 +15%
CC
38
Cornerstone Capital
California
$413K – – –
RhumbLine Advisers
39
RhumbLine Advisers
Massachusetts
$364K -$5.39K -2,247 -1%
Fidelity Investments
40
Fidelity Investments
Massachusetts
$316K -$57.8K -24,084 -15%
ACM
41
ADAR1 Capital Management
Texas
$303K -$365K -152,000 -55%
GCP
42
GSA Capital Partners
United Kingdom
$301K +$188K +78,553 +167%
AllianceBernstein
43
AllianceBernstein
Tennessee
$287K -$3.18K -1,323 -1%
Susquehanna International Group
44
Susquehanna International Group
Pennsylvania
$283K +$164K +68,289 +137%
NFC
45
Northeast Financial Consultants
Connecticut
$266K – – –
Universal-Beteiligungs- und Servicegesellschaft
46
Universal-Beteiligungs- und Servicegesellschaft
Germany
$259K +$259K +108,111 New
Barclays
47
Barclays
United Kingdom
$253K -$141K -58,702 -36%
IIM
48
INTECH Investment Management
Florida
$246K +$98.6K +41,076 +67%
MFS
49
Mirabella Financial Services
United Kingdom
$241K +$241K +100,381 New
Invesco
50
Invesco
Georgia
$225K +$115 +48 +0.1%
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