JHG — Janus Henderson Group plc

Ownership history in TRIAN FUND MANAGEMENT, L.P.  ·  17 quarters on record

AI Ownership Summary

TRIAN FUND MANAGEMENT, L.P. reported Janus Henderson Group plc (JHG) in 17 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 38.05% in 2025 Q4. The latest visible filing shows JHG at 38.05% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this JHG ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was TRIAN FUND MANAGEMENT, L.P.'s position in Janus Henderson Group plc, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

JHG was reported at 38.05% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
38.05% in 2025 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

JHG stock page TRIAN FUND MANAGEMENT, L.P. fund profile TRIAN FUND MANAGEMENT, L.P. full holdings
How TRIAN FUND MANAGEMENT, L.P. held JHG — position size vs. price
% of Fund (quarterly)    JHG price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 9 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 UNCHANGED 31,867,800 — 0% 38.05% $1.52B 2026-02-14 (Est.) $49.05
2025 Q3 UNCHANGED 31,867,800 — 0% 34.53% $1.42B 2025-11-14 $43.26
2025 Q2 UNCHANGED 31,867,800 — 0% 32.64% $1.24B 2025-08-14 $43.75
2025 Q1 UNCHANGED 31,867,800 — 0% 30.84% $1.15B 2025-05-15 $37.69
2024 Q4 UNCHANGED 31,867,800 — 0% 34.93% $1.36B 2025-02-14 $42.79
2024 Q3 UNCHANGED 31,867,800 — 0% 31.18% $1.21B 2024-11-13 $42.81
2024 Q2 UNCHANGED 31,867,800 — 0% 26.20% $1.07B 2024-08-14 $33.40
2024 Q1 UNCHANGED 31,867,800 — 0% 13.07% $1.05B 2024-05-15 $32.81
2023 Q4 UNCHANGED 31,867,800 — 0% 13.71% $960.8M 2024-02-14 $28.27
8 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding JHG

As of 2026 Q1 — sorted by position size

Versant Capital Management, Inc 3Y 7Y 0.04% True Wealth Design, LLC 3Y 0.03% NorthCrest Asset Manangement, LLC 3Y 0.01% GAMMA Investing LLC 0.01% WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 3Y 7Y 0.01% SIGNATUREFD, LLC 3Y 7Y 0.01% Perigon Wealth Management, LLC 3Y 7Y 0.01% Composition Wealth, LLC 3Y 7Y 0.0% Retirement Wealth Solutions LLC 0.0% PARK AVENUE SECURITIES LLC 3Y 7Y 0.0%

FAQ About TRIAN FUND MANAGEMENT, L.P. and JHG

These are the practical questions this page is built to answer before you even open the full history table.

How long has TRIAN FUND MANAGEMENT, L.P. reported owning JHG?

TRIAN FUND MANAGEMENT, L.P. reported JHG across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported JHG position in TRIAN FUND MANAGEMENT, L.P.'s portfolio?

The largest reported portfolio weight for JHG was 38.05% in 2025 Q4.

What is the latest reported JHG position on this page?

The most recent filing on this page is 2025 Q4, when TRIAN FUND MANAGEMENT, L.P. reported 31,867,800 shares, equal to 38.05% of portfolio, with an estimated market value of $1.52B.

What does the chart on this JHG ownership page compare?

The chart compares TRIAN FUND MANAGEMENT, L.P.'s quarterly JHG portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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