Quick Takeaways
- TANG CAPITAL MANAGEMENT LLC filed SCHEDULE 13G/A for Compass Therapeutics, Inc. Common Stock, par value $0.0001 per share (CMPX).
- Disclosed ownership: 10%.
- Date of event: 30 Sep 2025.
TANG CAPITAL MANAGEMENT LLC - 30 Sep 2025 SCHEDULE 13G/A Report for Compass Therapeutics, Inc. Common Stock, par value $0.0001 per share (CMPX)
- Filing Manager
- TANG CAPITAL MANAGEMENT LLC
- Reporting Manager
- TANG CAPITAL MANAGEMENT, LLC
- Symbol
- CMPX
- Shares outstanding
- 171,937,037 shares
- Disclosed Ownership
- 17,176,510 shares
- Ownership
- 10%
- Form type
- SCHEDULE 13G/A
- Filing time
- 14 Nov 2025, 16:17:03 UTC
- Date of event
- 30 Sep 2025
- Previous filing
- 14 Aug 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"TANG CAPITAL MANAGEMENT LLC disclosed 10% ownership in Compass Therapeutics, Inc. Common Stock, par value $0.0001 per share (CMPX) on 30 Sep 2025."
What Changed
- Previous schedule filing date: 14 Aug 2025.
- Current filing was accepted on 14 Nov 2025, 16:17.
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 FilingReporting Managers (6)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| TANG CAPITAL MANAGEMENT, LLC | 10% | 17,176,510 | 0 | 17,176,510 | /s/ Kevin Tang | Manager | |
| KEVIN TANG | 10% | 17,176,510 | 0 | 17,176,510 | /s/ Kevin Tang | Self | |
| TANG CAPITAL PARTNERS, LP | 6% | 10,274,944 | 0 | 10,274,944 | /s/ Kevin Tang | Manager, Tang Capital Management, LLC, General Partner | |
| TANG CAPITAL PARTNERS INTERNATIONAL, LP | 3.2% | 5,568,566 | 0 | 5,568,566 | /s/ Kevin Tang | Manager, Tang Capital Management, LLC, General Partner | |
| TANG CAPITAL PARTNERS III, INC | 0.58% | 999,750 | 0 | 999,750 | /s/ Kevin Tang | Chief Executive Officer | |
| TANG CAPITAL PARTNERS IV, INC | 0.19% | 333,250 | 0 | 333,250 | /s/ Kevin Tang | Chief Executive Officer |