Janus Henderson Group plc
US ˙ NYSE ˙ JE00BYPZJM29

SecurityJHG / Janus Henderson Group plc
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership2,271,650 shares
Latest Disclosed Value $ 116,694,661
Qube Research & Technologies Ltd reports 19.96% increase in ownership of JHG / Janus Henderson Group plc

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 2,271,650 shares of Janus Henderson Group plc (US:JHG) valued at $116,694,660 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,893,693 shares of Janus Henderson Group plc. This represents a change in shares of 19.96% during the quarter. The current value of the position is $117,557,888 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,271,650 377,957 19.96 116,695 29.54 0.1298
2026-02-17 2025-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 1,893,693 432,937 29.64 90,083 38.55 0.0915
2025-11-14 2025-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 1,460,756 -395,472 -21.31 65,018 -9.82 0.0672
2025-08-14 2025-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 1,856,228 148,132 8.67 72,096 16.76 0.0733
2025-05-15 2025-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 1,708,096 852,016 99.53 61,748 69.59 0.0716
2025-02-14 2024-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 856,080 -136,095 -13.72 36,409 -3.61 0.0477
2024-11-14 2024-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 992,175 239,653 31.85 37,772 48.90 0.0557
2024-08-14 2024-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 752,522 -171,296 -18.54 25,368 -16.51 0.0401
2024-05-14 2024-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 923,818 399,634 76.24 30,384 92.26 0.0482
2024-02-13 2023-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 524,184 90,445 20.85 15,804 41.12 0.0308
2023-11-13 2023-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 433,739 230,167 113.06 11,199 101.89 0.0293
2023-08-14 2023-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 203,572 203,572 5,547 0.0202
2023-05-15 2023-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 0 -21,338 -100.00 0 -100.00
2023-02-14 2022-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 21,338 -43,211 -66.94 502 -61.78 0.0027
2022-11-14 2022-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 64,549 -226,137 -77.79 1,311 -80.82 0.0078
2022-08-15 2022-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 290,686 290,686 6,834 0.0504
2022-05-09 2022-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 0 -171,979 -100.00 0 -100.00
2022-02-10 2021-12-31 13F/A-1 JANUS HENDERSON GROUP ORD SHS G4474Y214 171,979 171,979 7,213 0.0557
2022-02-01 2021-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 171,979 171,979 7,213 0.0557
2021-11-12 2021-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 0 -37,658 -100.00 0 -100.00
2021-08-13 2021-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 37,658 -36,225 -49.03 1,462 -36.46 0.0167
2021-05-14 2021-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 73,883 50,126 210.99 2,301 198.06 0.0365
2021-02-16 2020-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 23,757 23,757 772 0.0110
2020-11-12 2020-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 0 -221,339 -100.00 0 -100.00
2020-08-14 2020-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 221,339 221,339 4,684 0.0687
2020-05-15 2020-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 0 -33,878 -100.00 0 -100.00
2020-02-13 2019-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 33,878 33,878 828 0.0260
2019-02-14 2018-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 0 -7,685 -100.00 0 -100.00
2018-11-14 2018-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 7,685 3,993 108.15 207 83.19 0.0275
2018-08-15 2018-06-30 13F/A-1 JANUS HENDERSON GROUP ORD SHS G4474Y214 3,692 3,692 113 0.0713
2018-08-14 2018-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 3,692 113 0.0713
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.