Quick Takeaways
- DRIEHAUS CAPITAL MANAGEMENT LLC filed SCHEDULE 13G for Definium Therapeutics, Inc. Common Stock.
- Disclosed ownership: 6.6%.
- Date of event: 31 Dec 2025.
DRIEHAUS CAPITAL MANAGEMENT LLC - 31 Dec 2025 SCHEDULE 13G Report for Definium Therapeutics, Inc. Common Stock
- Filing Manager
- DRIEHAUS CAPITAL MANAGEMENT LLC
- Reporting Manager
- DRIEHAUS CAPITAL MANAGEMENT LLC
- Shares outstanding
- 98,451,837 shares
- Disclosed Ownership
- 6,537,202 shares
- Ownership
- 6.6%
- Form type
- SCHEDULE 13G
- Filing time
- 17 Feb 2026, 09:22:12 UTC
- Date of event
- 31 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"DRIEHAUS CAPITAL MANAGEMENT LLC disclosed 6.6% ownership in Definium Therapeutics, Inc. Common Stock on 31 Dec 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 17 Feb 2026, 09:22.
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 (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| DRIEHAUS CAPITAL MANAGEMENT LLC | 6.6% | 6,537,202 | 0 | 6,537,202 | Janet McWilliams | Janet McWilliams/General Counsel |