---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-138973"
form_type: "8-K"
ticker: "TCRX"
cik: "0001783328"
company_name: "TScan Therapeutics, Inc."
filed_at: "2026-04-02T23:59:59+00:00"
generated_at: "2026-05-15T07:51:50.867961+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# TScan Therapeutics VP of Finance resigns; CFO Amello named principal accounting officer

## Summary
- Leiden Dworak resigns as VP of Finance and principal accounting officer, effective April 10, 2026.
- No disagreements between Dworak and TScan regarding operations, policies, or practices.
- CFO Jason A. Amello appointed as principal accounting officer, effective same date.
- Amello receives no additional compensation for assuming the principal accounting officer role.
- Amello's background is incorporated by reference from TScan's May 2025 proxy statement.

## SEC filing metadata
- accession: 0001193125-26-138973
- form_type: 8-K
- ticker: TCRX
- cik: 0001783328
- company_name: TScan Therapeutics, Inc.
- filed_at: 2026-04-02T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1783328/000119312526138973/0001193125-26-138973-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1783328/000119312526138973/d923169d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-138973
- JSON: https://secwatch.observer/filing/0001193125-26-138973.json
- Plain text: https://secwatch.observer/filing/0001193125-26-138973.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.