Filing Manager
EcoR1 Capital, LLC
Reporting Manager
EcoR1 Capital, LLC
Symbol
TCRX
Shares outstanding
50,987,154 shares
Disclosed Ownership
662,833 shares
Ownership
1.3%
Form type
SCHEDULE 13G/A
Filing time
15 May 2025, 14:19:20 UTC
Date of event
31 Mar 2025

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Quoteable Key Fact

"EcoR1 Capital, LLC disclosed 1.3% ownership in TScan Therapeutics, Inc. Voting Common Stock (TCRX) on 31 Mar 2025."

Quick Takeaways

  • EcoR1 Capital, LLC filed SCHEDULE 13G/A for TScan Therapeutics, Inc. Voting Common Stock (TCRX).
  • Disclosed ownership: 1.3%.
  • Date of event: 31 Mar 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 15 May 2025, 14:19.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
EcoR1 Capital, LLC 1.3% 662,833 0 662,833 /s/ Oleg Nodelman Manager
Oleg Nodelman 1.3% 662,833 0 662,833 /s/ Oleg Nodelman Reporting person
EcoR1 Capital Fund Qualified, L.P. 1.2% 623,967 0 623,967 /s/ Oleg Nodelman Manager of the General Partner, EcoR1 Capital, LLC