Quick Takeaways
- DRIEHAUS CAPITAL MANAGEMENT LLC filed SCHEDULE 13G/A for Septerna, Inc. Common Stock (SEPN).
- Disclosed ownership: 10%.
- Date of event: 31 May 2025.
DRIEHAUS CAPITAL MANAGEMENT LLC - 31 May 2025 SCHEDULE 13G/A Report for Septerna, Inc. Common Stock (SEPN)
- Filing Manager
- DRIEHAUS CAPITAL MANAGEMENT LLC
- Reporting Manager
- DRIEHAUS CAPITAL MANAGEMENT LLC
- Security
- Septerna, Inc. Common Stock
- Symbol
- SEPN
- Shares outstanding
- 44,549,818 shares
- Disclosed Ownership
- 4,659,911 shares
- Ownership
- 10%
- Form type
- SCHEDULE 13G/A
- Filing time
- 10 Jun 2025, 10:55:12 UTC
- Date of event
- 31 May 2025
- Previous filing
- 15 May 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"DRIEHAUS CAPITAL MANAGEMENT LLC disclosed 10% ownership in Septerna, Inc. Common Stock (SEPN) on 31 May 2025."
What Changed
- Previous schedule filing date: 15 May 2025.
- Current filing was accepted on 10 Jun 2025, 10:55.
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 (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| DRIEHAUS CAPITAL MANAGEMENT LLC | 10% | 4,659,911 | 0 | 4,659,911 | Janet McWilliams | Janet McWilliams, General Counsel |