OmniAb (OABI) Institutional Ownership $1.54 +0.04 (+2.67%) Closing price 06/10/2025 04:00 PM EasternExtended Trading$1.55 +0.01 (+0.65%) As of 06/10/2025 06:51 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for OmniAb (NASDAQ:OABI)CurrentInstitutional OwnershipPercentage72.08%Number ofInstitutional Buyers(last 12 months)52TotalInstitutional Inflows(last 12 months)$20.45MNumber ofInstitutional Sellers(last 12 months)41TotalInstitutional Outflows(last 12 months)$26.79M Get OABI Insider Trade Alerts Want to know when executives and insiders are buying or selling OmniAb stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data OABI Institutional Buying and Selling by Quarter OmniAb Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/19/2025 Jane Street Group LLC80,778$194K0.0%+26.3%0.066% 5/16/2025 Goldman Sachs Group Inc.243,669$585K0.0%-55.6%0.200% 5/16/2025 Murchinson Ltd.1,007,810$2.42M0.1%+0.8%0.825% 5/16/2025 AQR Capital Management LLC10,271$25K0.0%N/A0.008% 5/16/2025 ADAR1 Capital Management LLC126,108$303K0.1%-54.7%0.103% 5/15/2025 PDT Partners LLC14,709$35K0.0%-73.8%0.012% 5/15/2025 First Sabrepoint Capital Management LP410,000$984K0.4%-71.9%0.336% 5/14/2025 MetLife Investment Management LLC36,627$88K0.0%-24.4%0.030% 5/13/2025 American Century Companies Inc.181,408$435K0.0%+15.4%0.149% 5/12/2025 Knott David M Jr982,336$2.36M1.1%-10.2%0.804% Get the Latest News and Ratings for OABI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for OmniAb and its competitors with MarketBeat's FREE daily newsletter. 5/12/2025 Nuveen LLC227,801$547K0.0%N/A0.187% 5/9/2025 Deutsche Bank AG432,859$1.04M0.0%-30.9%0.354% 5/9/2025 Charles Schwab Investment Management Inc.810,978$1.95M0.0%-1.1%0.664% 5/9/2025 PNC Financial Services Group Inc.16,276$39K0.0%+279.4%0.013% 5/7/2025 Private Management Group Inc.2,529,759$6.07M0.2%+13.3%2.071% 5/6/2025 Towerview LLC580,000$1.39M1.0%+5.5%0.475% 5/6/2025 Royce & Associates LP817,080$1.96M0.0%+15.6%0.669% 5/6/2025 Universal Beteiligungs und Servicegesellschaft mbH108,111$259K0.0%N/A0.089% 5/1/2025 Rice Hall James & Associates LLC2,580,780$6.19M0.4%-2.6%2.113% 5/1/2025 Isthmus Partners LLC468,707$1.13M0.1%+3.4%0.384% 4/30/2025 Cerity Partners LLC10,693$26K0.0%N/A0.009% 4/24/2025 Villere ST Denis J & Co. LLC1,437,944$3.45M0.3%-1.9%1.177% 4/17/2025 Chicago Capital LLC2,620,454$6.29M0.2%-11.9%2.146% 4/9/2025 Woodstock Corp742,700$1.78M0.2%-7.5%0.608% 3/18/2025 California State Teachers Retirement System77,953$276K0.0%-6.8%0.055% 2/17/2025 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC124,021$439K0.0%-3.3%0.088% 2/17/2025 Squarepoint Ops LLC39,264$139K0.0%+33.3%0.028% 2/17/2025 Two Sigma Investments LP10,292$36K0.0%-32.3%0.007% 2/17/2025 Sherbrooke Park Advisers LLC17,226$61K0.0%+53.5%0.012% 2/17/2025 ProShare Advisors LLC31,724$112K0.0%+29.9%0.022% 2/17/2025 Northeast Financial Consultants Inc110,996$393K0.0%N/A0.079% 2/17/2025 Millennium Management LLC186,745$661K0.0%+49.7%0.132% 2/17/2025 Janus Henderson Group PLC7,960,321$28.18M0.0%+1.1%5.637% 2/17/2025 First Sabrepoint Capital Management LP1,460,602$5.17M1.4%-12.3%1.034% 2/17/2025 Deutsche Bank AG626,106$2.22M0.0%+5.3%0.443% 2/17/2025 Balyasny Asset Management L.P.51,159$181K0.0%N/A0.036% 2/17/2025 Bank of America Corp DE616,359$2.18M0.0%-14.7%0.436% 2/17/2025 BNP Paribas Financial Markets17,549$62K0.0%N/A0.012% 2/14/2025 Jane Street Group LLC63,955$226K0.0%-53.1%0.045% 2/14/2025 Connors Investor Services Inc.29,611$105K0.0%+18.4%0.021% Why July 22nd Could Mean Big Changes for Social Security (Ad)In a stunning move, President Trump has authorized an AI-led transformation of federal agencies, including Social Security — and his plan is set to roll out July 22. What's coming next isn't about trimming waste.To see the full playbook and how it could impact everyone, click here.2/14/2025 PDT Partners LLC56,247$199K0.0%+93.9%0.040% 2/14/2025 Northern Trust Corp882,455$3.12M0.0%+5.4%0.625% 2/14/2025 Price T Rowe Associates Inc. MD38,217$136K0.0%+26.3%0.027% 2/14/2025 Hsbc Holdings PLC10,735$38K0.0%N/A0.008% 2/14/2025 MetLife Investment Management LLC48,425$171K0.0%-13.0%0.034% 2/14/2025 Dimensional Fund Advisors LP3,025,674$10.71M0.0%+4.9%2.143% 2/13/2025 XTX Topco Ltd51,790$183K0.0%N/A0.037% 2/13/2025 Barclays PLC164,315$582K0.0%+14.7%0.116% 2/13/2025 Legal & General Group Plc75,691$268K0.0%-9.4%0.054% 2/13/2025 Invesco Ltd.93,653$332K0.0%+3.3%0.066% 2/13/2025 ADAR1 Capital Management LLC278,108$985K0.2%-79.2%0.197% 2/13/2025 Wells Fargo & Company MN62,859$223K0.0%+24.3%0.045% 2/12/2025 Rangeley Capital LLC11,500$41K0.0%N/A0.008% 2/12/2025 Knott David M Jr1,094,505$3.88M1.4%-4.7%0.775% 2/12/2025 Geode Capital Management LLC2,353,442$8.33M0.0%+1.2%1.667% 2/12/2025 JPMorgan Chase & Co.1,001,797$3.55M0.0%+582.1%0.709% 2/11/2025 Corebridge Financial Inc.45,882$162K0.0%-7.0%0.032% 2/11/2025 Vanguard Group Inc.5,055,310$17.90M0.0%-2.6%3.580% 2/11/2025 KLP Kapitalforvaltning AS13,720$49K0.0%N/A0.010% 2/11/2025 American Century Companies Inc.157,211$557K0.0%+16.6%0.111% 2/10/2025 Royce & Associates LP707,080$2.50M0.0%+438.6%0.501% 2/10/2025 Swiss National Bank162,703$576K0.0%-5.2%0.115% 2/7/2025 Isthmus Partners LLC453,135$1.60M0.2%+1.6%0.321% 2/7/2025 BBR Partners LLC20,000$71K0.0%-71.4%0.014% 2/6/2025 Charles Schwab Investment Management Inc.819,708$2.90M0.0%+4.1%0.580% 2/4/2025 Bank of New York Mellon Corp259,171$917K0.0%-19.6%0.184% 1/31/2025 Rice Hall James & Associates LLC2,649,007$9.38M0.5%-2.7%1.876% 1/30/2025 Palumbo Wealth Management LLC21,204$75K0.0%-13.9%0.015% 1/30/2025 Villere ST Denis J & Co. LLC1,466,070$5.19M0.5%-2.2%1.038% 1/30/2025 Rhumbline Advisers153,812$544K0.0%-11.4%0.109% 1/27/2025 Bleakley Financial Group LLC11,229$40K0.0%-42.4%0.008% 1/27/2025 Private Management Group Inc.2,233,048$7.91M0.3%-0.7%1.581% 1/27/2025 Choreo LLC11,412$41K0.0%N/A0.008% 1/24/2025 Chicago Capital LLC2,975,451$10.53M0.3%-5.9%2.107% 1/22/2025 Court Place Advisors LLC23,556$83K0.0%-76.7%0.017% 1/17/2025 SG Americas Securities LLC40,609$144K0.0%+16.5%0.029% 1/15/2025 Woodstock Corp802,578$2.84M0.3%+1.2%0.568% 12/26/2024 JPMorgan Chase & Co.146,868$621K0.0%-10.2%0.104% 11/19/2024 Barclays PLC143,215$606K0.0%+321.5%0.101% 11/16/2024 Geode Capital Management LLC2,325,381$9.84M0.0%-0.6%1.968% 11/15/2024 First Sabrepoint Capital Management LP1,665,000$7.04M2.0%-11.2%1.409% 11/15/2024 Barclays PLC143,215$606K0.0%+321.5%0.121% 11/15/2024 Jane Street Group LLC136,359$577K0.0%-21.2%0.115% 11/15/2024 State Street Corp2,031,676$8.59M0.0%+1.7%1.719% 11/15/2024 Murchinson Ltd.1,000,000$4.23M1.2%N/A0.846% 11/15/2024 Janus Henderson Group PLC7,871,328$33.30M0.0%+0.0%6.662% 11/14/2024 PDT Partners LLC29,011$123K0.0%N/A0.025% 11/14/2024 Captrust Financial Advisors16,599$70K0.0%-25.9%0.014% 11/14/2024 Walleye Capital LLC14,320$61K0.0%N/A0.012% 11/14/2024 Isthmus Partners LLC446,134$1.89M0.2%-15.6%0.378% Watch This Robotics Demo Before July 23rd (Ad)Jeff Brown, the tech legend who picked shares of Nvidia in 2016 before they jumped by more than 22,000%... Just did a demo of what Nvidia’s CEO said will be "the first multitrillion-dollar robotics industry." Click here to watch the demo…11/14/2024 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC128,202$542K0.0%-10.7%0.108% 11/14/2024 BBR Partners LLC70,000$296K0.0%+250.0%0.059% 11/13/2024 FMR LLC138,813$587K0.0%+10.6%0.117% 11/12/2024 Charles Schwab Investment Management Inc.787,522$3.33M0.0%+2.1%0.666% 11/9/2024 Intech Investment Management LLC16,437$70K0.0%N/A0.014% 11/6/2024 Towerview LLC550,000$2.33M1.5%+2.8%0.465% 11/5/2024 GSA Capital Partners LLP91,437$387K0.0%-3.2%0.077% 11/2/2024 Mesirow Financial Investment Management Inc.30,398$129K0.0%-17.9%0.026% 11/1/2024 Atria Investments Inc35,081$148K0.0%N/A0.030% 11/1/2024 Villere ST Denis J & Co. LLC1,499,315$6.34M0.5%-27.1%1.269% (Data available from 1/1/2016 forward) OABI Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of OABI shares? During the previous two years, 116 institutional investors and hedge funds held shares of OmniAb. The most heavily invested institutionals were Janus Henderson Group PLC ($28.18M), William Blair Investment Management LLC ($18.24M), Vanguard Group Inc. ($17.90M), Rubric Capital Management LP ($14.80M), Dimensional Fund Advisors LP ($10.71M), State Street Corp ($8.59M), and Geode Capital Management LLC ($8.33M).Learn more on OABI's institutional investors. What percentage of OmniAb stock is owned by institutional investors? 72.08% of OmniAb stock is owned by institutional investors. Learn more on OABI's institutional investor holdings. Which institutional investors have been buying OmniAb stock? Of the 93 institutional investors that purchased OmniAb stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Rubric Capital Management LP ($5.00M), Chicago Capital LLC ($3.20M), Villere ST Denis J & Co. LLC ($2.26M), Murchinson Ltd. ($1.01M), JPMorgan Chase & Co. ($854.93K), Woodstock Corp ($793.03K), and Royce & Associates LP ($685.80K). How much institutional buying is happening at OmniAb? Institutional investors have bought a total of 19,772,691 shares in the last 24 months. This purchase volume represents approximately $93.36M in transactions. Which OmniAb major shareholders have been selling company stock? Of the 51 institutional investors that sold OmniAb stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Millennium Management LLC ($1.88M), First Sabrepoint Capital Management LP ($1.54M), Private Management Group Inc. ($1.44M), ADAR1 Capital Management LLC ($1.21M), Kornitzer Capital Management Inc. KS ($861.53K), Villere ST Denis J & Co. LLC ($801.61K), and Chicago Capital LLC ($566.90K). How much institutional selling is happening at OmniAb? Institutional investors have sold a total of 11,089,599 shares in the last 24 months. This volume of shares sold represents approximately $44.04M in transactions. Related Companies Priority Technology Major Shareholders Enviri Major Shareholders MultiPlan Major Shareholders Accolade Major Shareholders Thryv Major Shareholders DoubleDown Interactive Major Shareholders Repay Major Shareholders The RMR Group Major Shareholders Gravity Major Shareholders Bowman Consulting Group Major Shareholders This page (NASDAQ:OABI) was last updated on 6/11/2025 by MarketBeat.com Staff From Our PartnersMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredTrump wipes out trillions overnight…Is there anybody more powerful than Donald Trump right now? In a single tariff announcement, he wiped out n...Porter & Company | SponsoredElon’s NEXT Big IPO?Cancel your internet TODAY!? 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