Janus Henderson Group plc (JHG) ownership: Top institutional holder: TRIAN FUND MANAGEMENT, L.P. ($1.64B). Insider activity: Net Buyer (11 buys, 9 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| TRIAN FUND MANAGEMENT, L.P. | 31867800.00 | $1.64B | 2026-03-31 |
| BlackRock, Inc. | 14763241.00 | $758.39M | 2026-03-31 |
| VANGUARD GROUP INC | 12132303.00 | $577.13M | 2025-12-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5771779.00 | $296.50M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 5555218.00 | $285.37M | 2026-03-31 |
| STATE STREET CORP | 4383422.00 | $225.18M | 2026-03-31 |
| DIMENSIONAL FUND ADVISORS LP | 4268155.00 | $219.26M | 2026-03-31 |
| HBK INVESTMENTS L P | 4230723.00 | $217.33M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Buy | null | 2026-05-12 | |
| Buy | null | 2026-05-12 | |
| Buy | null | 2026-05-12 | |
| Buy | null | 2026-05-12 | |
| Buy | null | 2026-05-12 | |
| Buy | null | 2026-05-12 | |
| Sell | null | 2026-05-11 | |
| Sell | null | 2026-05-11 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.