Quick Takeaways
- Timothy A. Springer filed SCHEDULE 13D/A for Tectonic Therapeutic, Inc. Common Stock, $0.0001 par value per share (TECX).
- Disclosed ownership: 32%.
- Date of event: 03 Apr 2025.
Timothy A. Springer - 03 Apr 2025 SCHEDULE 13D/A Report for Tectonic Therapeutic, Inc. Common Stock, $0.0001 par value per share (TECX)
- Filing Manager
- Timothy A. Springer
- Reporting Manager
- Timothy A. Springer
- Symbol
- TECX
- Shares outstanding
- 13,693,835 shares
- Disclosed Ownership
- 4,313,558 shares
- Ownership
- 32%
- Form type
- SCHEDULE 13D/A
- Filing time
- 07 Apr 2025, 19:20:07 UTC
- Date of event
- 03 Apr 2025
- Previous filing
- 10 Feb 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Timothy A. Springer disclosed 32% ownership in Tectonic Therapeutic, Inc. Common Stock, $0.0001 par value per share (TECX) on 03 Apr 2025."
What Changed
- Previous schedule filing date: 10 Feb 2025.
- Current filing was accepted on 07 Apr 2025, 19:20.
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 (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Timothy A. Springer | 32% | 4,313,558 | 4,313,558 | 0 | /s/ Timothy A. Springer | Timothy A. Springer | 0001055624 |
| TAS Partners LLC | 7.4% | 1,382,723 | 1,382,723 | 0 | /s/ Timothy A. Springer | Timothy A. Springer/Manager | 0001677543 |
| Chafen Lu | 1% | 186,134 | 186,134 | 0 | /s/ Chafen Lu | Chafen Lu |