OMNIAB INC OABI

US Healthcare Services-Commercial Physical & Biological Research
$2.42
+1.3%
52w: $1.36 – $2.72

Latest 13F among current holders filed 32 days ago (Jun 3, 2026)

Price — last 12 months

research preview data
1.362.042.72
Jun 20, 2025 Jul 2, 2026
Institutional holders
128
-1 QoQ
13F value
$87.7M
-17.1% QoQ
Smart-money holders
9
signal tier ≥ 2
New smart buyers
1
Q1 2026
Options barometer
calls only
$20K calls / — puts

Institutional value by quarter

$458.4M
Q1 2024
$294.5M
Q2 2024
$335.2M
Q3 2024
$224.7M
Q4 2024
$152.4M
Q1 2025
$96.1M
Q2 2025
$101.8M
Q3 2025
$105.8M
Q4 2025
$87.7M
Q1 2026

Number of holders

153
Q1 2024
160
Q2 2024
165
Q3 2024
165
Q4 2024
154
Q1 2025
145
Q2 2025
140
Q3 2025
129
Q4 2025
128
Q1 2026

Who owns OABI?

Q1 2026 filings
FundTypeSharesValue% of fundChange
Whitefort Capital Management, LP ★3Fundamental concentrated14.2M$22.3M7.0%Held
BlackRock, Inc. Index provider8.1M$12.7M0.0%+0.5%
CADIAN CAPITAL MANAGEMENT, LP ★2Fundamental concentrated4.2M$6.5M0.8%-6.3%
VANGUARD CAPITAL MANAGEMENT LLC Diversified mechanical4.0M$6.3M0.0%
GEODE CAPITAL MANAGEMENT, LLC Index provider2.9M$4.6M0.0%+7.5%
RICE HALL JAMES & ASSOCIATES, LLC Other2.5M$4.0M0.2%+6.1%
PRIVATE MANAGEMENT GROUP INC Other2.4M$3.8M0.1%+0.4%
STATE STREET CORP Index provider2.1M$3.2M0.0%+0.9%
DIMENSIONAL FUND ADVISORS LP Quant stat arb1.7M$2.7M0.0%-18.9%
TOWERVIEW LLC ★3Fundamental concentrated1.0M$1.6M1.0%Held
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Index provider959.6K$1.5M0.0%-0.7%
VANGUARD PORTFOLIO MANAGEMENT LLC Diversified mechanical903.8K$1.4M0.0%
NORTHERN TRUST CORP Index provider880.9K$1.4M0.0%+6.3%
ISTHMUS PARTNERS, LLC Other756.7K$1.2M0.1%+4.9%
VANGUARD FIDUCIARY TRUST CO Diversified mechanical725.6K$1.1M0.0%
ADAR1 Capital Management, LLC Other705.2K$1.1M0.1%+0.4%
NOMURA HOLDINGS INC Bank broker705.0K$1.1M0.0%+355.0%
Nuveen, LLC Diversified mechanical623.9K$979K0.0%-28.7%
TWO SIGMA INVESTMENTS, LP Quant stat arb512.7K$805K0.0%+21.2%
GOLDMAN SACHS GROUP INC Bank broker419.0K$658K0.0%-22.4%
MORGAN STANLEY Bank broker407.9K$640K0.0%+4.7%
MILLENNIUM MANAGEMENT LLC Multistrat pod523.9K$630K0.0%-22.2%
D. E. Shaw & Co., Inc. Quant stat arb380.3K$597K0.0%-0.8%
Bank of New York Mellon Corp Diversified mechanical274.5K$431K0.0%+2.2%
RENAISSANCE TECHNOLOGIES LLC Quant stat arb269.6K$423K0.0%+11.1%
TLS Advisors LLC ★3Fundamental concentrated250.2K$393K0.9%+257.4%
CITADEL ADVISORS LLC Multistrat pod228.7K$359K0.0%-19.8%
BRIDGEWAY CAPITAL MANAGEMENT, LLC Diversified mechanical198.9K$312K0.0%Held
Arbiter Partners Capital Management LLC ★3Fundamental concentrated192.6K$302K0.2%Held
FMR LLC Long only active189.5K$298K0.0%-4.7%
ALLIANCEBERNSTEIN L.P. Long only active150.6K$279K0.0%Held
Stonepine Capital Management, LLC ★2Fundamental concentrated164.0K$258K0.2%-76.6%
RHUMBLINE ADVISERS Diversified mechanical159.2K$250K0.0%-2.2%
Cornerstone Capital, Inc. ★2Fundamental diversified142.3K$223K0.0%+30.3%
Invesco Ltd. Index provider135.1K$212K0.0%-0.9%
BANK OF AMERICA CORP /DE/ Bank broker121.7K$191K0.0%+46.4%
JPMORGAN CHASE & CO Bank broker120.1K$187K0.0%-59.0%
AQR CAPITAL MANAGEMENT LLC Quant stat arb115.6K$182K0.0%+378.8%
UBS Group AG Bank broker102.5K$161K0.0%+50.8%
DEUTSCHE BANK AG\ Bank broker92.7K$145K0.0%+20.0%
PRICE T ROWE ASSOCIATES INC /MD/ Diversified mechanical77.0K$122K0.0%+44.8%
SEI INVESTMENTS CO Diversified mechanical60.6K$95K0.0%+41.3%
Vanguard Global Advisers, LLC Diversified mechanical51.4K$81K0.0%
WELLS FARGO & COMPANY/MN Bank broker50.1K$79K0.0%-60.1%
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Index provider50.1K$79K0.0%+2.6%
Shay Capital LLC Quant stat arb49.7K$78K0.0%New
MetLife Investment Management, LLC Insurance48.1K$76K0.0%+31.7%
XTX Topco Ltd Market maker44.7K$70K0.0%+271.5%
BLAIR WILLIAM & CO/IL Diversified mechanical43.2K$68K0.0%0.0%
JACOBS LEVY EQUITY MANAGEMENT, INC Other43.0K$67K0.0%-82.0%

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