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OmniAb, Inc.

OABI
Exchange
Nasdaq
Industry
Services-Commercial Physical & Biological Research
SEC CIK
0001846253

No open-market purchases or sales by OmniAb, Inc. insiders were filed in the last 90 days; 131 institutions reported holding it in 13F filings for Q2 2026, worth $144.2M in total; no superinvestor holds it.

Other share classesOABIW

13F holders, Q2 2025

Institutional positions in OmniAb, Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
144
−9 vs. Q1 2025
Shares held
55.0M
−8.38M (−13.2%) vs. Q1 2025
Total value
$95.5M
−$56.5M (−37.2%) vs. Q1 2025
New holders
25
56 more added
Sold out
34
31 more reduced

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting OABI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 144 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 1 institutionQ4 2022: 148 institutionsQ1 2023: 142 institutionsQ2 2023: 144 institutionsQ3 2023: 148 institutionsQ4 2023: 157 institutionsQ1 2024: 153 institutionsQ2 2024: 160 institutionsQ3 2024: 165 institutionsQ4 2024: 165 institutionsQ1 2025: 153 institutionsQ2 2025: 144 institutionsQ3 2025: 140 institutionsQ4 2025: 129 institutionsQ1 2026: 128 institutionsQ2 2026: 131 institutions
Value heldQ2 2025: $95.5M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $11.2MQ4 2022: $234.9MQ1 2023: $243.3MQ2 2023: $338.6MQ3 2023: $355.9MQ4 2023: $514.0MQ1 2024: $450.4MQ2 2024: $293.9MQ3 2024: $334.6MQ4 2024: $224.7MQ1 2025: $152.0MQ2 2025: $95.5MQ3 2025: $100.5MQ4 2025: $105.8MQ1 2026: $87.7MQ2 2026: $144.2M
Institutions holding OABI and their total value by quarter
QuarterHoldersValue
Q2 2026131$144.2M
Q1 2026128$87.7M
Q4 2025129$105.8M
Q3 2025140$100.5M
Q2 2025144$95.5M
Q1 2025153$152.0M
Q4 2024165$224.7M
Q3 2024165$334.6M
Q2 2024160$293.9M
Q1 2024153$450.4M
Q4 2023157$514.0M
Q3 2023148$355.9M
Q2 2023144$338.6M
Q1 2023142$243.3M
Q4 2022148$234.9M
Q3 20221$11.2M
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding OmniAb, Inc.; share changes are against Q1 2025.

Institutions holding OABI in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Legal & General Group Plc9,557$16.6K0.00%+1,242+14.9%Added
CWM, LLC7,537$13.0K0.00%+6,429+580.2%Added
Raymond James Financial Inc7,027$12.2K0.00%+7,027New
California State Teachers Retirement System6,687$11.6K0.00%00.0%Unchanged
Spire Wealth Management6,510$11.3K0.00%−270−4.0%Reduced
Nisa Investment Advisors, LLC5,113$8.90K0.00%+2,559+100.2%Added
Mirae Asset Global Investments Co., Ltd.4,726$8.22K0.00%+1,107+30.6%Added
Caitong International Asset Management Co., Ltd3,707$6.45K0.00%+3,707New
Amalgamated Bank3,170$6.00K0.00%00.0%Unchanged
GF Fund Management Co. Ltd.3,099$5.39K0.00%00.0%Unchanged
Smartleaf Asset Management LLC3,045$5.18K0.00%+3,011+8,855.9%Added
Point72 (DIFC) Ltd2,741$4.77K0.00%+2,741New
Jackson, Grant Investment Advisers, Inc.2,450$4.26K0.00%00.0%Unchanged
Sterling Capital Management LLC2,404$4.18K0.00%+929+63.0%Added
Redwood Park Advisors LLC2,184$3.80K0.00%00.0%Unchanged
Allworth Financial LP2,127$3.70K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.1,557$2.71K0.00%−14,719−90.4%Reduced
Larson Financial Group LLC1,470$2.56K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC1,125$1.96K0.00%+1,125New
Cheviot Value Management, LLC980$1.93K0.00%00.0%Unchanged
Geneos Wealth Management Inc.773$1.34K0.00%−1,396−64.4%Reduced
Wolverine Asset Management LLC766$1.33K0.00%00.0%Unchanged
Russell Investments Group, Ltd.759$1.32K0.00%−1,165−60.6%Reduced
Daiwa Securities Group Inc.475$1.00K0.00%00.0%Unchanged
North Star Investment Management Corp.550$9570.00%00.0%Unchanged
Fortitude Family Office, LLC466$8110.00%+466New
Dynamic Wealth Strategies, LLC411$7150.00%00.0%Unchanged
St Germain D J Co Inc367$6390.00%00.0%Unchanged
Signaturefd, LLC361$6280.00%00.0%Unchanged
CIBC Private Wealth Group, LLC294$5120.00%−490−62.5%Reduced
GWM Advisors LLC189$3290.00%00.0%Unchanged
Central Trust Co171$2980.00%00.0%Unchanged
Scarborough Advisors, LLC161$2800.00%+161New
Comerica Bank127$2210.00%−344−73.0%Reduced
SBI Securities Co., Ltd.126$2190.00%+109+641.2%Added
CBIZ Investment Advisory Services, LLC78$1360.00%00.0%Unchanged
Farmers & Merchants Investments Inc53$920.00%00.0%Unchanged
National Bank of Canada42$730.00%+42New
Umb Bank N A29$500.00%00.0%Unchanged
Parallel Advisors, LLC4$70.00%00.0%Unchanged
South State Corp.1$20.00%−688−99.9%Reduced
Farther Finance Advisors, LLC1$20.00%−4−80.0%Reduced
Simplex Trading, LLC200$00.00%−31−13.4%Reduced
Covestor Ltd131$00.00%+37+39.4%Added
Janus Henderson Group PLC0$00.00%−8,058,228−100.0%Sold out
Macquarie Group Ltd0$00.00%−4,422,738−100.0%Sold out
Rubric Capital Management LP0$00.00%−2,850,588−100.0%Sold out
Chicago Capital, LLC0$00.00%−2,620,454−100.0%Sold out
Villere St Denis J & Co LLC0$00.00%−1,437,944−100.0%Sold out
Knott David M Jr0$00.00%−982,336−100.0%Sold out
Impax Asset Management Group plc0$00.00%−761,387−100.0%Sold out
First Sabrepoint Capital Management LP0$00.00%−410,000−100.0%Sold out
American Century Companies Inc0$00.00%−181,408−100.0%Sold out
Universal- Beteiligungs- und Servicegesellschaft mbH0$00.00%−108,111−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−46,712−100.0%Sold out
Gallagher Fiduciary Advisors, LLC0$00.00%−43,696−100.0%Sold out
Atria Investments LLC0$00.00%−43,563−100.0%Sold out
Henshaw Capital LLC0$00.00%−37,507−100.0%Sold out
HRT Financial LP0$00.00%−34,647−100.0%Sold out
Mesirow Financial Investment Management, Inc.0$00.00%−30,764−100.0%Sold out
Sherbrooke Park Advisers LLC0$00.00%−20,388−100.0%Sold out
Captrust Financial Advisors0$00.00%−16,837−100.0%Sold out
PDT Partners, LLC0$00.00%−14,709−100.0%Sold out
Public Employees Retirement Association of Colorado0$00.00%−14,264−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−14,315−100.0%Sold out
HSBC Holdings PLC0$00.00%−11,020−100.0%Sold out
Federated Hermes, Inc.0$00.00%−4,157−100.0%Sold out
Lazard Asset Management LLC0$00.00%−3,693−100.0%Sold out
Rise Advisors, LLC0$00.00%−1,725−100.0%Sold out
Northwestern Mutual Wealth Management Co0$00.00%−1,141−100.0%Sold out
Coldstream Capital Management Inc0$00.00%−474−100.0%Sold out
Cornerstone Planning Group LLC0$00.00%−249−100.0%Sold out
Salem Investment Counselors Inc0$00.00%−60−100.0%Sold out
IFP Advisors, Inc0$00.00%0Sold out
True Wealth Design, LLC0$00.00%−42−100.0%Sold out
Rothschild Investment LLC0$00.00%−40−100.0%Sold out
Mather Group, LLC.0$00.00%−21−100.0%Sold out
Parkworth Wealth Management, Inc.0$00.00%−4−100.0%Sold out