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Disclosery

OABI OMNIAB INC

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COM (common), issuer CIK 1846253

126 managers (129 13F filers) reported a position in OABI shares at 2025-12-31, 57,293,382 shares in all. 14 filers opened a position and 21 filers sold out during the quarter.

Managers
126
13F filers
129
New
14
Added
41
Reduced
39
Sold out
21
Shares held by filers
57,293,382

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Whitefort Capital Management, LP14,223,658$26.3M7.96%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.8,064,981$14.9M<0.01%+1,100,75913F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding5,656,634$10.5M+466,879Timeline
CADIAN CAPITAL MANAGEMENT, LP4,434,954$8.2M0.59%+759,38613F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,722,692$5.04M<0.01%+396,45613F-HRTimelineGroup
PRIVATE MANAGEMENT GROUP INC2,420,478$4.48M0.13%-97,80113F-HRTimeline
RICE HALL JAMES & ASSOCIATES, LLC2,401,088$4.44M0.24%-10,95013F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP2,152,593$3.98M<0.01%-395,69113F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP2,048,996$3.79M<0.01%-45,85013F-HRTimelineGroup
TOWERVIEW LLC1,000,000$1.85M1.34%+168,90013F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co966,026$1.79M<0.01%+180,54913F-HRTimelineGroup
Nuveen, LLCin group TIAA874,512$1.62M<0.01%+213F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP829,021$1.53M<0.01%+10,55513F-HRTimelineGroup
ISTHMUS PARTNERS, LLC721,309$1.33M0.15%+52,23813F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC702,190$1.3M0.1%-388,43813F-HR/ATimelineGroup
Stonepine Capital Management, LLC701,000$1.3M1.03%-1,441,85713F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding620,634$1.15M+202,869Timeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC673,395$1.02M<0.01%+387,59413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC540,277$1000K<0.01%-47,50913F-HR/ATimelineGroup
MORGAN STANLEYin group MORGAN STANLEY389,687$721K<0.01%-430,53513F-HR/ATimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.383,152$709K<0.01%+196,87113F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO293,168$542K<0.01%-469,74413F-HRTimelineGroup
Woodline Partners LP285,714$529K<0.01%-2,571,42813F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC285,134$527K<0.01%-551,66513F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp268,645$497K<0.01%+4,94713F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC242,700$449K<0.01%-280,75413F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC238,189$441K<0.01%-768,06713F-HRTimeline
FMR LLCin group FMR LLC198,980$368K<0.01%+44,43413F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC198,900$368K0.01%+45,00013F-HRTimeline
Arbiter Partners Capital Management LLCin group Arbiter Partners Capital Mana…192,585$356K0.19%+32,05613F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC165,557$306K<0.01%+21,84713F-HRTimelineGroup
RHUMBLINE ADVISERS162,773$301K<0.01%+1,83713F-HRTimeline
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD154,951$287K<0.01%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.150,592$279K<0.01%013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.136,309$252K<0.01%+12,25813F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC135,378$250K<0.01%-53,70413F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN125,636$232K<0.01%+45,04013F-HRTimelineGroup
Cornerstone Capital, Inc.109,211$202K0.02%013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/83,088$154K<0.01%+35,05813F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\77,225$143K<0.01%-77213F-HRTimelineGroup
TLS Advisors LLC70,000$137K0.36%-180,18513F-HRTimeline
UBS Group AGin group UBS Group AG67,974$126K<0.01%+28,31013F-HRTimelineGroup
CONNORS INVESTOR SERVICES INC61,941$115K0.01%013F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding55,838$103K+7,646Timeline
PRICE T ROWE ASSOCIATES INC /MD/53,190$100K<0.01%013F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC47,596$88.1K<0.01%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC47,625$88K<0.01%new13F-HRTimelineGroup
BLAIR WILLIAM & CO/IL43,211$79.9K<0.01%-1,96013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO42,860$79.3K<0.01%-38,18513F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC37,820$70K<0.01%-12,74513F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…36,552$67.6K<0.01%-20,10813F-HRTimelineGroup
WOODSTOCK CORP35,240$65.2K0.01%-316,51313F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC32,749$60.6K<0.01%-200,03813F-HRTimelineGroup
Legato Capital Management LLC30,679$56.8K<0.01%+2,49013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …28,943$53.5K<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS25,870$47.9K<0.01%+4,14913F-HRTimelineGroup
ProShare Advisors LLC25,576$47.3K<0.01%+5,21313F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…24,415$45.2K<0.01%-27,85513F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC24,153$44.7K<0.01%+1,06613F-HRTimelineGroup
China Universal Asset Management Co., L…23,457$43.4K<0.01%+1,94913F-HRTimeline
SG Americas Securities, LLC23,141$43K<0.01%+11,36913F-HRTimeline
Police & Firemen's Retirement System of…22,568$41.8K<0.01%013F-HRTimeline
HighTower Advisors, LLC21,382$39.6K<0.01%013F-HRTimeline
ALGERT GLOBAL LLC20,498$37.9K<0.01%new13F-HR/ATimeline
BFSG, LLC20,435$37.8K<0.01%013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC20,326$37.6K<0.01%-15,10513F-HRTimelineGroup
BBR PARTNERS, LLC20,000$37K<0.01%013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC19,496$36.1K<0.01%013F-HRTimelineGroup
LPL Financial LLC19,354$35.8K<0.01%+55413F-HRTimeline
Connor, Clark & Lunn Investment Managem…18,945$35K<0.01%new13F-HRTimeline
Thrive Wealth Management, LLC17,281$32K<0.01%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…15,958$29.5K<0.01%+1,03313F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.15,468$28.6K<0.01%+1,94613F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…15,321$28.3K<0.01%-81,04013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC12,552$23.2K<0.01%+2,48113F-HRTimeline
State of Wyoming12,243$22.6K<0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd12,022$22.2K<0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND11,806$21.8K<0.01%013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…10,939$20.2K<0.01%+1,35313F-HRTimelineGroup
Avior Wealth Management, LLC10,704$19.8K<0.01%013F-HRTimeline
CHOREO, LLC10,451$19.4K<0.01%-1,92913F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…9,652$17.9K<0.01%013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc9,557$17.7K<0.01%013F-HRTimelineGroup
Steigerwald, Gordon & Koch Inc.7,673$14.2K<0.01%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC6,868$12.7K<0.01%-4,25013F-HRTimelineGroup
MAI Capital Management6,736$12.5K<0.01%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…6,476$12K<0.01%-21613F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…6,270$11.6K<0.01%-2,07313F-HRTimelineGroup
Sterling Capital Management LLC5,622$10.4K<0.01%+5513F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA4,802$9K<0.01%-298,36113F-HRTimelineGroup
AMALGAMATED BANK3,304$6K<0.01%+13413F-HRTimeline
GF FUND MANAGEMENT CO. LTD.2,828$5.23K<0.01%+24113F-HRTimeline
CWM, LLCin group CWM, LLC2,493$5K<0.01%-3,56213F-HRTimelineGroup
Smartleaf Asset Management LLC2,458$4.57K<0.01%-93113F-HRTimeline
Jackson, Grant Investment Advisers, Inc.2,450$4.53K<0.01%013F-HRTimeline
Redwood Park Advisors LLC2,184$4.04K<0.01%013F-HRTimeline
Allworth Financial LP2,127$3.94K<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…2,003$3.71K<0.01%+1,33813F-HRTimelineGroup
Parallel Advisors, LLC1,854$3.43K<0.01%+1,85013F-HRTimeline
Larson Financial Group LLC1,470$2.72K<0.01%013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.1,256$2.32K<0.01%013F-HRTimelineGroup
Spire Wealth Managementin group Spire Wealth Management1,200$2.22K<0.01%-5,31013F-HRTimelineGroup
Cheviot Value Management, LLC980$1.81K<0.01%013F-HRTimeline
North Star Investment Management Corp.550$1.02K<0.01%013F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.475$1K<0.01%013F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC490$907<0.01%-4,62313F-HRTimeline
SIMPLEX TRADING, LLC430$795<0.01%-2,90413F-HRTimeline
Dynamic Wealth Strategies, LLC411$760<0.01%013F-HRTimeline
ST GERMAIN D J CO INCin group ST GERMAIN D J CO INC367$679<0.01%013F-HRTimelineGroup
SIGNATUREFD, LLC361$668<0.01%013F-HRTimeline
Comprehensive Financial Planning, Inc./…323$597<0.01%new13F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.294$544<0.01%013F-HRTimelineGroup
NewEdge Advisors, LLC189$350<0.01%013F-HRTimeline
CENTRAL TRUST Co171$317<0.01%013F-HRTimeline
Scarborough Advisors, LLC161$298<0.01%013F-HRTimeline
COMERICA BANK127$235<0.01%013F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…53$98<0.01%013F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…29$54<0.01%new13F-HR/ATimelineGroup
Arax Advisory Partners24$44<0.01%-26113F-HRTimeline
SBI Securities Co., Ltd.24$44<0.01%-113F-HRTimeline
American Capital Advisory, LLC19$36<0.01%new13F-HRTimeline
True Wealth Design, LLC6$12<0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC3$6<0.01%new13F-HRTimeline
Caitong International Asset Management …1$2<0.01%013F-HR/ATimeline
Farther Finance Advisors, LLC1$2<0.01%013F-HRTimeline
Covestor Ltd19$00%-11213F-HRTimelineValue filed as zero, left out of ratios.