Janus Henderson Group plc
US ˙ NYSE ˙ JE00BYPZJM29

SecurityJHG / Janus Henderson Group plc
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership9,761 shares
Latest Disclosed Value $ 501,423
Quadrant Capital Group Llc reports 16.29% increase in ownership of JHG / Janus Henderson Group plc

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 9,761 shares of Janus Henderson Group plc (US:JHG) valued at $501,423 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 8,394 shares of Janus Henderson Group plc. This represents a change in shares of 16.29% during the quarter. The current value of the position is $505,229 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)
2026-05-13 2026-03-31 13F/A-1 JANUS HENDERSON GROUP ORD SHS G4474Y214 9,761 1,367 16.29 501 25.56 0.0150
2026-05-11 2026-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 9,761 1,367 49 0.0369
2026-02-12 2025-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 8,394 341 4.23 399 11.45 0.0121
2025-11-13 2025-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 8,053 382 4.98 358 20.54 0.0117
2025-08-13 2025-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 7,671 1,000 14.99 298 23.24 0.0107
2025-05-13 2025-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 6,671 4,267 177.50 241 136.27 0.0090
2025-02-13 2024-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,404 0 0.00 102 12.09 0.0070
2024-11-12 2024-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,404 0 0.00 92 12.35 0.0064
2024-08-12 2024-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,404 148 6.56 81 9.46 0.0060
2024-05-15 2024-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,256 -129 -5.41 74 4.23 0.0059
2024-02-08 2023-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,385 -398 -14.30 72 0.00 0.0062
2023-11-14 2023-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,783 117 4.39 72 -1.39 0.0072
2023-08-10 2023-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,666 225 9.22 73 10.77 0.0072
2023-05-11 2023-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,441 -103 -4.05 65 10.17 0.0068
2023-02-13 2022-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,544 -182 -6.68 60 7.27 0.0068
2022-11-10 2022-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 2,726 1,146 72.53 55 48.65 0.0073
2022-08-09 2022-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 1,580 951 151.19 37 68.18 0.0050
2022-05-06 2022-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 629 -7 -1.10 22 -18.52 0.0027
2022-02-01 2021-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 636 -100 -13.59 27 -10.00 0.0032
2021-11-12 2021-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 736 0 0.00 30 3.45 0.0042
2021-08-09 2021-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 736 -97 -11.64 29 11.54 0.0042
2021-05-12 2021-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 833 32 4.00 26 0.00 0.0042
2021-02-16 2020-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 801 0 0.00 26 52.94 0.0048
2020-11-13 2020-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 801 -63 -7.29 17 -5.56 0.0037
2020-08-13 2020-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 864 -1 -0.12 18 28.57 0.0040
2020-05-15 2020-03-31 13F Janus Henderson Group Com G4474Y214 865 795 1,135.71 14 1,300.00 0.0023
2020-03-19 2019-12-31 13F/A-1 Janus Henderson Group Com G4474Y214 70 70 1 0.0001
2020-02-03 2019-12-31 13F Janus Henderson Group Com G4474Y214 70 70 1 119.8131
2019-10-24 2019-09-30 13F Janus Henderson Group COM G4474Y214 0 -102 -100.00 0 -100.00
2019-07-24 2019-06-30 13F Janus Henderson Group COM G4474Y214 102 0 0.00 2 0.00 0.0003
2019-04-29 2019-03-31 13F Janus Henderson Group COM G4474Y214 102 -98 -49.00 2 -50.00 0.0004
2019-01-17 2018-12-31 13F Janus Henderson Group COM G4474Y214 200 -99 -33.11 4 -42.86 0.0011
2018-10-29 2018-09-30 13F Janus Henderson Group COM G4474Y214 299 198 196.04 7 250.00 0.0020
2018-08-08 2018-06-30 13F Janus Henderson Group COM G4474Y214 101 -117 -53.67 2 -60.00 0.0007
2018-05-10 2018-03-31 13F Janus Henderson Group COM G4474Y214 218 0 0.00 5 -28.57 0.0018
2018-01-31 2017-12-31 13F Janus Henderson Group COM G4474Y214 218 0 0.00 7 40.00 0.0028
2017-10-13 2017-09-30 13F Janus Henderson Group COM G4474Y214 218 71 48.30 5 66.67 0.0021
2017-08-14 2017-06-30 13F Janus Henderson Group COM G4474Y214 147 147 3 0.0013
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.