Home / Companies / RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.)
RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) H-1B company data
Summary
RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) filed 11 H-1B labor condition applications (LCAs) with the U.S. Department of Labor between FY2022-FY2025.
Of those, 11 were certified (a 100% certification rate among adjudicated filings).
The filings span 9 distinct role titles across 3 worksites.
The most-sponsored role was Regulatory Operations Director (2 filings), with offered wages from $222,602 to $243,100.
Separately, USCIS H-1B Employer Data Hub records show 3 approved and 0 denied H-1B petitions for this employer.
LCA filings are labor-condition applications certified by the U.S. Department of Labor, not active job postings or approved USCIS H-1B petitions.
| Employer | LCA filings | Role titles | Worksites | Coverage | USCIS approvals | Top role | Sources | Open |
|---|---|---|---|---|---|---|---|---|
| RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) RAPT Therapeutics, RAPT THERAPEUTICS INC FORMERLY FLX BIO INC | 11 | 9 | 3 | FY2022 to FY2025 Latest decision 2025-08-29 | 3 | Regulatory Operations Director 2 filings | dol_oflc_lca, uscis_h1b_employer_data_hub | Profile |
| RAPT THERAPEUTICS INC FORMERLY FLX RAPT THERAPEUTICS INC FORMERLY FLX | 0 | - | - | FY- to FY- Latest decision - | 1 | - | uscis_h1b_employer_data_hub | Profile |
Activity summary
| LCA filings | 11 |
| Certified LCAs | 11 |
| Denied LCAs | 0 |
| Role titles | 9 |
| Worksites | 3 |
| Latest decision | 2025-08-29 |
| USCIS approvals | 3 |
| USCIS denials | 0 |
Aliases and source names
| Aliases | Source Names | Sources |
|---|---|---|
| RAPT Therapeutics, RAPT THERAPEUTICS INC FORMERLY FLX BIO INC | RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.), RAPT THERAPEUTICS INC FORMERLY FLX BIO INC | dol_oflc_lca, uscis_h1b_employer_data_hub |
Top roles
| Title | SOC | LCA filings | Low wage min | High wage max |
|---|---|---|---|---|
| Regulatory Operations Director | 11-9199.01 Regulatory Affairs Managers | 2 | $222,602 | $243,100 |
| Scientist II, Quantitative Biology | 19-1042.00 Medical Scientists, Except Epidemiologists | 2 | $142,000 | $150,000 |
| Director, Biologics Process Development | 11-9121.00 Natural Sciences Managers | 1 | $250,000 | $250,000 |
| Director, Regulatory Operations | 11-9199.02 Compliance Managers | 1 | $223,450 | $253,194 |
| Research Associate II, DMPK | 19-1029.02 Molecular and Cellular Biologists | 1 | $98,000 | $98,000 |
| Research Associate II, Quantitative Biology | 19-1029.01 Bioinformatics Scientists | 1 | $88,700 | $104,000 |
| Scientist II, DMPK | 19-1029.02 Molecular and Cellular Biologists | 1 | $160,000 | $160,000 |
| Senior Manager, Clinical Data Management Operations | 15-2051.02 Clinical Data Managers | 1 | $186,846 | $204,917 |
| Senior Manager, Regulatory Affairs | 11-9199.01 Regulatory Affairs Managers | 1 | $188,970 | $201,023 |
Top markets
| City | State | Postal Code | LCA Count | Role Title Count | Wage Low Min | Wage High Max | First Fiscal Year | Latest Fiscal Year |
|---|---|---|---|---|---|---|---|---|
| South San Francisco | CA | 94080 | 9 | 7 | 88,700 | 243,100 | 2,022 | 2,025 |
| Lathrop | CA | 95330 | 1 | 1 | 223,450 | 253,194 | 2,024 | 2,024 |
| North Chelmsford | MA | 01863 | 1 | 1 | 250,000 | 250,000 | 2,025 | 2,025 |
Full company payload
| Company ID | company:rapt therapeutics formerly flx bio |
| Name | RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) |
| Normalized Name | rapt therapeutics formerly flx bio |
| Source Company Ids | company_dol_oflc_lca_rapt_therapeutics_inc_formerly_flx_bio_inc, company_uscis_h1b_datahub_rapt_therapeutics_inc_formerly_flx_bio_inc_tax_3701 |
| Source Names | RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.), RAPT THERAPEUTICS INC FORMERLY FLX BIO INC |
| Aliases | RAPT Therapeutics, RAPT THERAPEUTICS INC FORMERLY FLX BIO INC |
| Sources | dol_oflc_lca, uscis_h1b_employer_data_hub |
Names
{
"source_names": [
"RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.)",
"RAPT THERAPEUTICS INC FORMERLY FLX BIO INC"
],
"dba_names": [
"RAPT Therapeutics"
],
"name_variants": [
{
"value": "RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.)",
"filing_count": 10,
"first_fiscal_year": 2022,
"latest_fiscal_year": 2025,
"source": "dol_oflc_lca"
},
{
"value": "RAPT Therapeutics",
"filing_count": 1,
"first_fiscal_year": 2022,
"latest_fiscal_year": 2022,
"source": "dol_oflc_lca"
},
{
"value": "RAPT THERAPEUTICS INC FORMERLY FLX BIO INC",
"source": "uscis_h1b_employer_data_hub"
}
]
}Identifiers
[
{
"identifier_type": "tax_id_last_four",
"identifier_value": "3701",
"source": "uscis_h1b_employer_data_hub"
}
]LCA Activity
{
"lca_count": 11,
"case_count": 11,
"role_title_count": 9,
"worksite_count": 3,
"total_workers": 11,
"first_fiscal_year": 2022,
"first_received_date": "2022-04-26",
"latest_fiscal_year": 2025,
"latest_decision_date": "2025-08-29",
"certified_count": 11,
"denied_count": 0,
"status_breakdown": [
{
"value": "Certified",
"filing_count": 11,
"first_fiscal_year": 2022,
"latest_fiscal_year": 2025,
"source": "dol_oflc_lca"
}
],
"visa_class_breakdown": [
{
"value": "H-1B",
"filing_count": 11,
"first_fiscal_year": 2022,
"latest_fiscal_year": 2025,
"source": "dol_oflc_lca"
}
],
"full_time_position_breakdown": [
{
"value": "Y",
"filing_count": 11,
"first_fiscal_year": 2022,
"latest_fiscal_year": 2025,
"source": "dol_oflc_lca"
}
]
}Petition Activity
{
"initial_approval": 0,
"initial_denial": 0,
"continuing_approval": 0,
"continuing_denial": 0,
"total_approval": 3,
"total_denial": 0,
"fiscal_years": [
"2022"
],
"year_metrics": [
{
"cities": [
"South San Francisco"
],
"states": [
"CA"
],
"fiscal_year": 2022,
"naics_codes": [
"54"
],
"postal_codes": [
"94080"
],
"total_denial": 0,
"initial_denial": 0,
"total_approval": 3,
"initial_approval": 1,
"continuing_denial": 0,
"petition_count_id": "petition_count_uscis_h1b_archive_rapt_therapeutics_inc_formerly_flx_bio_inc_tax_3701_2022",
"source_record_ids": [
"sr_uscis_h1b_datahub_2022_row_043032"
],
"continuing_approval": 2
}
]
}Addresses
{
"office_addresses": [
{
"address_kind": "office",
"raw_address": "SOUTH SAN FRANCISCO CA 94080",
"city": "South San Francisco",
"state": "CA",
"postal_code": "94080",
"filing_count": 11,
"case_count": 11,
"first_fiscal_year": 2022,
"latest_fiscal_year": 2025,
"latest_decision_date": "2025-08-29",
"source_ids": [
"dol_oflc_lca"
]
}
],
"worksite_addresses": [
{
"address_kind": "worksite",
"raw_address": "SOUTH SAN FRANCISCO CA 94080",
"city": "South San Francisco",
"county": "San Mateo",
"state": "CA",
"postal_code": "94080",
"filing_count": 9,
"case_count": 9,
"first_fiscal_year": 2022,
"latest_fiscal_year": 2025,
"latest_decision_date": "2024-10-21",
"source_ids": [
"dol_oflc_lca"
]
},
{
"address_kind": "worksite",
"raw_address": "NORTH CHELMSFORD MA 01863",
"city": "North Chelmsford",
"state": "MA",
"postal_code": "01863",
"filing_count": 1,
"case_count": 1,
"first_fiscal_year": 2025,
"latest_fiscal_year": 2025,
"latest_decision_date": "2025-08-29",
"source_ids": [
"dol_oflc_lca"
]
},
{
"address_kind": "worksite",
"raw_address": "LATHROP CA 95330",
"city": "Lathrop",
"county": "San Joaquin",
"state": "CA",
"postal_code": "95330",
"filing_count": 1,
"case_count": 1,
"first_fiscal_year": 2024,
"latest_fiscal_year": 2024,
"latest_decision_date": "2024-03-12",
"source_ids": [
"dol_oflc_lca"
]
}
],
"summary": {
"office_address_count": 1,
"worksite_address_count": 3,
"has_street_address_evidence": true,
"caveat": "LCA employer/worksite addresses are capped filing evidence scoped to matched source company names and should not be treated as verified headquarters without external validation."
}
}Geography
{
"states": [
"CA",
"MA"
],
"cities": [
"South San Francisco",
"Lathrop",
"North Chelmsford"
],
"postal_codes": [
"94080",
"95330",
"01863"
],
"top_markets": [
{
"city": "South San Francisco",
"state": "CA",
"postal_code": "94080",
"lca_count": 9,
"role_title_count": 7,
"wage_low_min": 88700,
"wage_high_max": 243100,
"first_fiscal_year": 2022,
"latest_fiscal_year": 2025
},
{
"city": "Lathrop",
"state": "CA",
"postal_code": "95330",
"lca_count": 1,
"role_title_count": 1,
"wage_low_min": 223450,
"wage_high_max": 253194,
"first_fiscal_year": 2024,
"latest_fiscal_year": 2024
},
{
"city": "North Chelmsford",
"state": "MA",
"postal_code": "01863",
"lca_count": 1,
"role_title_count": 1,
"wage_low_min": 250000,
"wage_high_max": 250000,
"first_fiscal_year": 2025,
"latest_fiscal_year": 2025
}
]
}Industry
{
"naics_codes": [
"541714",
"54"
],
"naics_breakdown": [
{
"value": "541714",
"filing_count": 6,
"first_fiscal_year": 2022,
"latest_fiscal_year": 2023,
"source": "dol_oflc_lca"
},
{
"value": "54171",
"filing_count": 5,
"first_fiscal_year": 2022,
"latest_fiscal_year": 2025,
"source": "dol_oflc_lca"
}
]
}Wage Summary
{
"annualized_low_min": 88700,
"annualized_high_max": 253194,
"annualized_low_avg": 175015.454545455
}Trend
[
{
"fiscal_year": 2022,
"quarter": "Q3",
"lca_count": 2,
"case_count": 2,
"role_title_count": 2,
"worksite_count": 1,
"wage_low_min": 142000,
"wage_high_max": 160000,
"wage_low_avg": 151000
},
{
"fiscal_year": 2022,
"quarter": "Q4",
"lca_count": 1,
"case_count": 1,
"role_title_count": 1,
"worksite_count": 1,
"wage_low_min": 142000,
"wage_high_max": 150000,
"wage_low_avg": 142000
},
{
"fiscal_year": 2023,
"quarter": "Q2",
"lca_count": 2,
"case_count": 2,
"role_title_count": 1,
"worksite_count": 1,
"wage_low_min": 222602,
"wage_high_max": 243100,
"wage_low_avg": 222602
},
{
"fiscal_year": 2023,
"quarter": "Q3",
"lca_count": 1,
"case_count": 1,
"role_title_count": 1,
"worksite_count": 1,
"wage_low_min": 88700,
"wage_high_max": 104000,
"wage_low_avg": 88700
},
{
"fiscal_year": 2023,
"quarter": "Q4",
"lca_count": 2,
"case_count": 2,
"role_title_count": 2,
"worksite_count": 1,
"wage_low_min": 186846,
"wage_high_max": 204917,
"wage_low_avg": 187908
},
{
"fiscal_year": 2024,
"quarter": "Q2",
"lca_count": 1,
"case_count": 1,
"role_title_count": 1,
"worksite_count": 1,
"wage_low_min": 223450,
"wage_high_max": 253194,
"wage_low_avg": 223450
},
{
"fiscal_year": 2025,
"quarter": "Q1",
"lca_count": 1,
"case_count": 1,
"role_title_count": 1,
"worksite_count": 1,
"wage_low_min": 98000,
"wage_high_max": 98000,
"wage_low_avg": 98000
},
{
"fiscal_year": 2025,
"quarter": "Q4",
"lca_count": 1,
"case_count": 1,
"role_title_count": 1,
"worksite_count": 1,
"wage_low_min": 250000,
"wage_high_max": 250000,
"wage_low_avg": 250000
}
]Links
{
"roles": "/v1/roles?company=RAPT%20Therapeutics%2C%20Inc.%20(Formerly%20FLX%20Bio%2C%20Inc.)",
"wages": "/v1/wages?company=RAPT%20Therapeutics%2C%20Inc.%20(Formerly%20FLX%20Bio%2C%20Inc.)",
"trends": "/v1/trends?company=RAPT%20Therapeutics%2C%20Inc.%20(Formerly%20FLX%20Bio%2C%20Inc.)"
}Frequently asked questions
- Does RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) sponsor H-1B visas?
- Yes. RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) filed 11 H-1B labor condition applications with the U.S. Department of Labor (FY2022-FY2025), of which 11 were certified. LCA filings are labor-condition applications certified by the U.S. Department of Labor, not active job postings or approved USCIS H-1B petitions.
- How many H-1B applications has RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) filed?
- RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) has 11 H-1B LCA filings on record spanning FY2022-FY2025 across 9 role titles and 3 worksites.
- What roles does RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) sponsor for H-1B?
- The most common H-1B role at RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) is Regulatory Operations Director (2 filings). Other frequent roles include Scientist Ii, Quantitative Biology, Director, Biologics Process Development, Director, Regulatory Operations, Research Associate Ii, Dmpk.
- What wages does RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) offer H-1B workers?
- For its most-sponsored role (Regulatory Operations Director), RAPT Therapeutics, Inc. (Formerly FLX Bio, Inc.) reported offered wages ranging from $222,602 to $243,100 in DOL LCA filings.
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