Map / Notices / Spark Therapeutics WARN notice — Philadelphia, 2025-05-09 Official filing · original source linked
Spark Therapeutics WARN notice — Philadelphia, 2025-05-09 Spark Therapeutics, Inc. reported 298 workers affected in Philadelphia. Notice date: Unavailable; planned effective date: May 9, 2025.
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Raw employer name Spark Therapeutics, Inc.
Workers affected 298
Event type layoff
Filing status filed
Notice / received date Unavailable
Effective date May 9, 2025
ZIP 19104
Reported location Philadelphia
Published address 2929 Arch St, Philadelphia, PA 19104 3025 Market St, Philadelphia, PA 19104 3737 Market St, Philadelphia, PA 19104
Source classification Layoff
Source agency Pennsylvania Department of Labor & Industry Original source & provenance Open supplied source ↗
Agency source
Source ID / record ID
First ingested
Last observed
Snapshot SHA-256 40f8ef8163c6f08a9d28e50fb7acfe9f8e58020610faecfecf6afb98d58829e4
View original source row {
"company": "Spark Therapeutics, Inc.",
"text": "2929 Arch Street, Philadelphia, PA 19104 3025 Market Street, Philadelphia, PA 19104 3737 Market Street, Philadelphia, PA 19104 COUNTY: Philadelphia # AFFECTED: 298 EFFECTIVE DATE: first wave - 5/9/2025 impacting 124 workers second wave - 7/1/2025 impacting 112 workers final wave ending - 12/31/2025 impacting 62 workers CLOSURE OR LAYOFF: Layoff",
"effectiveText": "first wave - 5/9/2025 impacting 124 workers second wave - 7/1/2025 impacting 112 workers final wave ending - 12/31/2025 impacting 62 workers"
} A source-linked public record. Secondary records are attributed to their provider and are not independently verified. For direct records, “Verified” means sourced from an official agency; it does not confirm the layoffs took place.
Dates and counts are the supplied source’s reported values. Secondary-provider locations are unstructured; they are not confirmed worksite addresses. Check the original document for phased dates, updates and exceptions.
