Quick Takeaways
- TCG Crossover GP I, LLC filed SCHEDULE 13G for Upstream Bio, Inc. Common Stock, par value $0.001 per share (UPB).
- Disclosed ownership: 5.2%.
- Date of event: 31 Dec 2024.
TCG Crossover GP I, LLC - 31 Dec 2024 SCHEDULE 13G Report for Upstream Bio, Inc. Common Stock, par value $0.001 per share (UPB)
- Filing Manager
- TCG Crossover GP I, LLC
- Reporting Manager
- TCG Crossover GP I, LLC
- Symbol
- UPB
- Shares outstanding
- 53,880,058 shares
- Disclosed Ownership
- 2,801,763 shares
- Ownership
- 5.2%
- Form type
- SCHEDULE 13G
- Filing time
- 14 Feb 2025, 16:23:29 UTC
- Date of event
- 31 Dec 2024
- Next filing
- 14 Nov 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"TCG Crossover GP I, LLC disclosed 5.2% ownership in Upstream Bio, Inc. Common Stock, par value $0.001 per share (UPB) on 31 Dec 2024."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 14 Feb 2025, 16:23.
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.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| TCG Crossover GP I, LLC | 5.2% | 2,801,763 | 0 | 2,801,763 | /s/ Craig Skaling | Authorized Signatory | |
| TCG Crossover Fund I, L.P. | 5.2% | 2,801,763 | 0 | 2,801,763 | /s/ Craig Skaling | Authorized Signatory | |
| Chen Yu | 5.2% | 2,801,763 | 0 | 2,801,763 | /s/ Craig Skaling | By POA as Attorney-in-Fact |