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OmniAb

128 hedge funds and large institutions have $87.7M invested in OmniAb in 2026 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 42 increasing their positions, 38 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed

11% more repeat investments, than reductions

Existing positions increased: 42 | Existing positions reduced: 38

9% more first-time investments, than exits

New positions opened: 24 | Existing positions closed: 22

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

1% less funds holding

Funds holding: 129128 (-1)

1.16% less ownership

Funds ownership: 39.8%38.64% (-1.2%)

17% less capital invested

Capital invested by funds: $106M → $87.7M (-$18.1M)

Holders
128
Holders Change
-1
Holders Change %
-0.78%
% of All Funds
1.58%
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.01%
New
24
Increased
42
Reduced
38
Closed
22
Calls
$20K
Puts
Net Calls
+$20K
Net Calls Change
-$28K
Name Holding Trade Value Shares
Change
Change in
Stake
TA
26
TLS Advisors
Florida
$393K +$325K +180,185 +257%
Citadel Advisors
27
Citadel Advisors
Florida
$359K -$102K -56,450 -20%
BCM
28
Bridgeway Capital Management
Texas
$312K
APCM
29
Arbiter Partners Capital Management
New York
$302K
Fidelity Investments
30
Fidelity Investments
Massachusetts
$298K -$17K -9,444 -5%
AllianceBernstein
31
AllianceBernstein
Tennessee
$279K
SCM
32
Stonepine Capital Management
Oregon
$258K -$969K -536,955 -77%
RhumbLine Advisers
33
RhumbLine Advisers
Massachusetts
$250K -$6.38K -3,538 -2%
CC
34
Cornerstone Capital
California
$223K +$59.7K +33,075 +30%
Invesco
35
Invesco
Georgia
$212K -$2.21K -1,222 -0.9%
Bank of America
36
Bank of America
North Carolina
$191K +$69.6K +38,568 +46%
JP Morgan Chase
37
JP Morgan Chase
New York
$187K -$312K -173,066 -59%
AQR Capital Management
38
AQR Capital Management
Connecticut
$182K +$165K +91,494 +379%
UBS Group
39
UBS Group
Switzerland
$161K +$62.3K +34,533 +51%
Deutsche Bank
40
Deutsche Bank
Germany
$145K +$27.9K +15,445 +20%
T. Rowe Price Associates
41
T. Rowe Price Associates
Maryland
$122K +$43K +23,850 +45%
SEI Investments
42
SEI Investments
Pennsylvania
$95.1K +$32K +17,718 +41%
VGA
43
Vanguard Global Advisers
Pennsylvania
$80.7K +$92.8K +51,396 New
Wells Fargo
44
Wells Fargo
California
$78.7K -$136K -75,503 -60%
Mirae Asset Global ETFs Holdings
45
Mirae Asset Global ETFs Holdings
Hong Kong
$78.7K +$2.29K +1,270 +3%
SC
46
Shay Capital
New York
$78K +$89.6K +49,662 New
MIM
47
MetLife Investment Management
New Jersey
$75.6K +$20.9K +11,580 +32%
XT
48
XTX Topco
Cayman Islands
$70.1K +$58.9K +32,637 +271%
William Blair & Company
49
William Blair & Company
Illinois
$67.8K +$9 +5 +0%
Jacobs Levy Equity Management
50
Jacobs Levy Equity Management
New Jersey
$67.5K -$352K -195,223 -82%