Janus Henderson Group plc
DE ˙ DB ˙ JE00BYPZJM29
42,80 € ↑0,20 (0,47%)
2026-06-03
AKTIENPREIS
SecurityDE:HDJA / Janus Henderson Group plc
InstitutionSei Investments Co
Latest Disclosed Ownership110,404 shares
Latest Disclosed Value $ 5,252,181
Sei Investments Co reports 43.67% increase in ownership of HDJA / Janus Henderson Group plc

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 110,404 shares of Janus Henderson Group plc (DE:HDJA) valued at $4,261,594 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 76,848 shares of Janus Henderson Group plc. This represents a change in shares of 43.67% during the quarter. The current value of the position is $4,725,291 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)
2026-02-13 2025-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 110,404 33,556 43.67 5,252 53.57 0.0052
2025-11-13 2025-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 76,848 804 1.06 3,421 15.81 0.0037
2025-08-14 2025-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 76,044 -43,087 -36.17 2,953 -31.42 0.0034
2025-05-14 2025-03-31 13F/A-1 JANUS HENDERSON GROUP ORD SHS G4474Y214 119,131 11,154 10.33 4,307 -6.23 0.0055
2025-05-13 2025-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 116,706 8,729 4,712 0.0051
2025-02-11 2024-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 107,977 29,437 37.48 4,593 53.63 0.0059
2024-11-12 2024-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 78,540 35,109 80.84 2,990 104.17 0.0039
2024-08-13 2024-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 43,431 1,745 4.19 1,464 6.78 0.0021
2024-05-07 2024-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 41,686 -405 -0.96 1,371 8.12 0.0020
2024-02-14 2023-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 42,091 9,055 27.41 1,268 48.83 0.0020
2023-11-14 2023-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 33,036 4,346 15.15 853 9.09 0.0015
2023-08-11 2023-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 28,690 2,296 8.70 782 11.10 0.0014
2023-05-12 2023-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 26,394 9,045 52.14 703 72.30 0.0013
2023-02-10 2022-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 17,349 244 1.43 408 17.24 0.0009
2022-11-14 2022-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 17,105 17,105 348 0.0008
2022-02-14 2021-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 0 -12,228 -100.00 0 -100.00
2021-11-12 2021-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 12,228 -1,300 -9.61 505 -3.81 0.0011
2021-08-06 2021-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 13,528 3,465 34.43 525 67.73 0.0012
2021-05-12 2021-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 10,063 -7,600 -43.03 313 -45.47 0.0008
2021-02-08 2020-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 17,663 -737 -4.01 574 43.50 0.0015
2020-12-04 2020-09-30 13F/A-1 JANUS HENDERSON GROUP ORD SHS G4474Y214 18,400 1,499 8.87 400 11.73 0.0012
2020-11-06 2020-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 18,401 1,500 400 963.1111
2020-08-17 2020-06-30 13F/A-1 JANUS HENDERSON GROUP ORD SHS G4474Y214 16,901 -68,954 -80.31 358 -73.20 0.0011
2020-08-11 2020-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 19,699 -66,156 482 1,307.4507
2020-05-14 2020-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 85,855 20,597 31.56 1,336 -19.13 0.0049
2020-02-06 2019-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 65,258 -10,092 -13.39 1,652 -7.35 0.0049
2019-11-12 2019-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 75,350 42,949 132.55 1,783 157.29 0.0046
2019-08-14 2019-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 32,401 -151 -0.46 693 -14.76 0.0023
2019-05-15 2019-03-31 13F JANUS HENDERSON GROUP ORD S3 G4474Y214 32,552 32,552 813 0.0027
2018-11-08 2018-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 0 -146 -100.00 0 -100.00
2018-08-03 2018-06-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 146 0 0.00 4 -20.00 0.0000
2018-05-11 2018-03-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 146 -13 -8.18 5 -16.67 0.0000
2018-02-08 2017-12-31 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 159 12 8.16 6 20.00 0.0000
2017-11-06 2017-09-30 13F JANUS HENDERSON GROUP ORD SHS G4474Y214 147 147 5 0.0000
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.