Quick Takeaways
- TRIAN FUND MANAGEMENT, L.P. filed SCHEDULE 13D/A for JANUS HENDERSON GROUP PLC Ordinary Shares, $1.50 per share par value (JHG).
- Disclosed ownership: 21%.
- Date of event: 24 Mar 2026.
TRIAN FUND MANAGEMENT, L.P. - 24 Mar 2026 SCHEDULE 13D/A Report for JANUS HENDERSON GROUP PLC Ordinary Shares, $1.50 per share par value (JHG)
- Filing Manager
- TRIAN FUND MANAGEMENT, L.P.
- Reporting Manager
- TRIAN FUND MANAGEMENT, L.P.
- Symbol
- JHG
- Shares outstanding
- 153,950,725 shares
- Disclosed Ownership
- 31,867,800 shares
- Ownership
- 21%
- Form type
- SCHEDULE 13D/A
- Filing time
- 24 Mar 2026, 21:54:03 UTC
- Date of event
- 24 Mar 2026
- Previous filing
- 22 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"TRIAN FUND MANAGEMENT, L.P. disclosed 21% ownership in JANUS HENDERSON GROUP PLC Ordinary Shares, $1.50 per share par value (JHG) on 24 Mar 2026."
What Changed
- Previous schedule filing date: 22 Dec 2025.
- Current filing was accepted on 24 Mar 2026, 21:54.
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 (5)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Nelson Peltz | 21% | 31,867,800 | 0 | 31,867,800 | /s/ Nelson Peltz | Nelson Peltz | |
| Peter W. May | 21% | 31,867,800 | 0 | 31,867,800 | /s/ Peter W. May | Peter W. May | |
| TRIAN FUND MANAGEMENT, L.P. | 21% | 31,867,800 | 0 | 31,867,800 | /s/ Peter W. May | Member of the General Partner of the Reporting Person | 0001345471 |
| Trian Fund Management GP, LLC | 21% | 31,867,800 | 0 | 31,867,800 | /s/ Peter W. May | Member | |
| Trian Partners AM Holdco II, Ltd. | 21% | 31,867,800 | 0 | 31,867,800 | /s/ Peter W. May | Director |