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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
WCM
1
Whitefort Capital Management
New York
$22.3M
BlackRock
2
BlackRock
New York
$12.7M +$75.6K +41,900 +0.5%
CCM
3
Cadian Capital Management
New York
$6.53M -$501K -277,825 -6%
VCM
4
Vanguard Capital Management
Pennsylvania
$6.27M +$7.21M +3,993,652 New
Geode Capital Management
5
Geode Capital Management
Massachusetts
$4.59M +$366K +202,887 +7%
RHJA
6
Rice Hall James & Associates
California
$4M +$264K +146,167 +6%
PMG
7
Private Management Group
California
$3.81M +$15.7K +8,688 +0.4%
State Street
8
State Street
Massachusetts
$3.25M +$32.8K +18,147 +0.9%
Dimensional Fund Advisors
9
Dimensional Fund Advisors
Texas
$2.74M -$735K -407,345 -19%
TL
10
TowerView LLC
New York
$1.57M
Charles Schwab
11
Charles Schwab
California
$1.51M -$11.6K -6,453 -0.7%
VPM
12
Vanguard Portfolio Management
Pennsylvania
$1.42M +$1.63M +903,799 New
Northern Trust
13
Northern Trust
Illinois
$1.38M +$93.6K +51,874 +6%
IP
14
Isthmus Partners
Wisconsin
$1.19M +$63.8K +35,365 +5%
VFT
15
Vanguard Fiduciary Trust
Pennsylvania
$1.14M +$1.31M +725,608 New
ACM
16
ADAR1 Capital Management
Texas
$1.11M +$5.41K +3,000 +0.4%
Nomura Holdings
17
Nomura Holdings
Japan
$1.11M +$993K +550,097 +355%
N
18
Nuveen
North Carolina
$979K -$452K -250,636 -29%
Two Sigma Investments
19
Two Sigma Investments
New York
$805K +$162K +89,637 +21%
Goldman Sachs
20
Goldman Sachs
New York
$658K -$219K -121,253 -22%
Morgan Stanley
21
Morgan Stanley
New York
$640K +$32.9K +18,246 +5%
Millennium Management
22
Millennium Management
New York
$630K -$270K -149,477 -22%
D.E. Shaw & Co
23
D.E. Shaw & Co
New York
$597K -$5.23K -2,898 -0.8%
Bank of New York Mellon
24
Bank of New York Mellon
New York
$431K +$10.5K +5,806 +2%
Renaissance Technologies
25
Renaissance Technologies
New York
$423K +$48.5K +26,900 +11%