Trial of Magrolimab (Hu5F9-G4) in Combination With Rituximab or Rituximab + Chemotherapy in Participants With Relapsed/Refractory B-cell Non-Hodgkin's Lymphoma

Key Inclusion Criteria:

* Phase 1b only: B-cell non-Hodgkin's lymphoma (NHL), relapsed or refractory to standard approved therapies
* DLBCL Phase 2 cohort: De novo or transformed diffuse large B-cell lymphoma (DLBCL) expressing CD 20, relapsed or refractory to at least 2 prior lines treatment containing anti-CD20 therapy
* Indolent lymphoma Phase 2 cohort: Marginal zone or follicular lymphoma, relapsed or refractory to standard approved therapies
* DLBCL chemotherapy combination cohort: De novo or transformed diffuse large B-cell lymphoma (DLBCL), relapsed or refractory to 1-3 prior lines of treatment
* Adequate performance status and hematological, liver and kidney functions
* Willing to consent to 1 mandatory pre-treatment and 1 on-treatment tumor biopsy

Key Exclusion Criteria:

* Active brain metastases
* Prior allogeneic hematopoietic cell transplantation
* Prior treatment with CD47 or signal regulatory protein alpha (SIRPα) targeting agents
* Second malignancy within the last 3 years
* Known active or chronic hepatitis B or C infection or HIV
* Pregnancy or active breastfeeding
* Prior chimeric antigen receptor (CAR-T) therapy

Note: Other protocol defined Inclusion/Exclusion criteria may apply.