Key facts
- JANUS HENDERSON GROUP PLC filed SCHEDULE 13G/A for OLEMA PHARMACEUTICALS, INC. Common Stock (OLMA).
- Disclosed ownership: 8.2%.
- Date of event: 31 Mar 2026.
JANUS HENDERSON GROUP PLC - 31 Mar 2026 SCHEDULE 13G/A Report for OLEMA PHARMACEUTICALS, INC. Common Stock (OLMA)
- Filing manager
- JANUS HENDERSON GROUP PLC
- Reporting owner
- JANUS HENDERSON GROUP PLC
- Disclosed shares
- 7,108,488 shares
- Ownership percentage
- 8.2%
- Form type
- SCHEDULE 13G/A
- Filing time
- 15 May 2026, 12:38:49 UTC
- Event date
- 31 Mar 2026
- Previous filing
- 17 Feb 2026
- SEC filing
- View on sec.gov
Reporting parties
Subject security
Ownership signal
SEC evidence
Key filing fact
JANUS HENDERSON GROUP PLC disclosed 8.2% ownership in OLEMA PHARMACEUTICALS, INC. Common Stock (OLMA) on 31 Mar 2026.
Change
- Previous schedule filing date: 17 Feb 2026.
- Current filing was accepted on 15 May 2026, 12:38.
Research use
- 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.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Reporting managers (1)
Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| JANUS HENDERSON GROUP PLC | 8.2% | 7,108,488 | 0 | 7,108,488 | Kristin Mariani | Head of North America Compliance |
CIK / CUSIP context first