Under Armour, Inc.
CH ˙ SWX ˙ US9043111072
SecurityCH:UAA / Under Armour, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership81,838 shares
Latest Disclosed Value $ 483,253
Janus Henderson Group Plc ownership in UAA / Under Armour, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 81,838 shares of Under Armour, Inc. (CH:UAA) valued at $483,253 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 66,232 shares of Under Armour, Inc.. This represents a change in shares of 0.00% during the quarter.

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)
2026-05-18 2026-03-31 13F/A-1 UNDER ARMOUR CL A 904311107 81,838 0 0.00 483 18.67 0.0001
2026-05-15 2026-03-31 13F UNDER ARMOUR CL A 904311107 81,838 0 483 0.0001
2026-02-17 2025-12-31 13F UNDER ARMOUR CL A 904311107 81,838 0 0.00 407 -0.25 0.0002
2025-11-14 2025-09-30 13F UNDER ARMOUR CL A 904311107 81,838 0 0.00 409 -26.88 0.0002
2025-08-14 2025-06-30 13F UNDER ARMOUR CL A 904311107 81,838 81,838 559 0.0003
2025-02-14 2024-12-31 13F UNDER ARMOUR CL A 904311107 0 -81,838 -100.00 0 -100.00
2024-11-14 2024-09-30 13F UNDER ARMOUR CL A 904311107 81,838 -3,181,598 -97.49 730 -96.65 0.0004
2024-08-14 2024-06-30 13F UNDER ARMOUR CL A 904311107 3,263,436 -626,992 -16.12 21,768 -24.19 0.0117
2024-05-15 2024-03-31 13F UNDER ARMOUR CL A 904311107 3,890,428 831,202 27.17 28,712 6.77 0.0157
2024-02-14 2023-12-31 13F UNDER ARMOUR CL A 904311107 3,059,226 146,772 5.04 26,891 34.80 0.0160
2023-11-14 2023-09-30 13F UNDER ARMOUR CL A 904311107 2,912,454 2,829,502 3,411.01 19,950 3,230.38 0.0131
2023-08-14 2023-06-30 13F UNDER ARMOUR CL A 904311107 82,952 -103 -0.12 599 -23.79 0.0004
2023-05-15 2023-03-31 13F UNDER ARMOUR CL A 904311107 83,055 -15,261 -15.52 787 -21.24 0.0005
2023-02-14 2022-12-31 13F UNDER ARMOUR CL A 904311107 98,316 59,998 156.58 998 291.37 0.0007
2023-01-13 2022-09-30 13F/A-1 UNDER ARMOUR CL A 904311107 38,318 84 0.22 255 -19.81 0.0002
2022-11-14 2022-09-30 13F UNDER ARMOUR CL A 904311107 38,318 84 255 0.0001
2022-08-15 2022-06-30 13F UNDER ARMOUR CL A 904311107 38,234 -43 -0.11 318 -51.23 0.0002
2022-05-16 2022-03-31 13F UNDER ARMOUR CL A 904311107 38,277 -21 -0.05 652 -19.70 0.0003
2022-02-14 2021-12-31 13F UNDER ARMOUR CL A 904311107 38,298 -175,245 -82.07 812 -81.16 0.0003
2021-11-16 2021-09-30 13F UNDER ARMOUR CL A 904311107 213,543 213,543 4,309 0.0019
2021-08-16 2021-06-30 13F UNDER ARMOUR CL A 904311107 0 -616,934 -100.00 0 -100.00
2021-05-17 2021-03-31 13F UNDER ARMOUR CL A 904311107 616,934 564,244 1,070.87 13,671 2,564.91 0.0062
2020-08-14 2020-06-30 13F UNDER ARMOUR CL A 904311107 52,690 6,985 15.28 513 21.85 0.0003
2020-05-14 2020-03-31 13F UNDER ARMOUR CL A 904311107 45,705 -17,892 -28.13 421 -69.36 0.0003
2020-02-18 2019-12-31 13F UNDER ARMOUR CL A 904311107 63,597 -41,125 -39.27 1,374 -34.20 0.0007
2019-11-14 2019-09-30 13F UNDER ARMOUR CL A 904311107 104,722 72,772 227.77 2,088 157.78 0.0011
2019-07-31 2019-06-30 13F UNDER ARMOUR CL A 904311107 31,950 -149,839 -82.42 810 -78.92 0.0004
2019-04-30 2019-03-31 13F UNDER ARMOUR CL A 904311107 181,789 -551,780 -75.22 3,843 -70.35 0.0021
2019-02-06 2018-12-31 13F UNDER ARMOUR CL A 904311107 733,569 325,590 79.81 12,962 49.73 0.0083
2018-11-09 2018-09-30 13F UNDER ARMOUR CL A 904311107 407,979 397,859 3,931.41 8,657 3,696.93 0.0046
2018-08-10 2018-06-30 13F UNDER ARMOUR CL A 904311107 10,120 -998 -8.98 228 25.27 0.0001
2018-05-14 2018-03-31 13F UNDER ARMOUR CL A 904311107 11,118 -21,681 -66.10 182 -61.60 0.0001
2018-03-12 2017-12-31 13F/A-1 UNDER ARMOUR CL A 904311107 32,799 -9,783 -22.97 474 -32.48 0.0003
2018-02-09 2017-12-31 13F UNDER ARMOUR CL A 904311107 32,799 -9,783 474
2017-11-14 2017-09-30 13F UNDER ARMOUR CL A 904311107 42,582 -3,694 -7.98 702 -30.29 0.0004
2017-08-17 2017-06-30 13F/A-1 UNDER ARMOUR CL A 904311107 46,276 21,505 86.82 1,007 105.51 0.0007
2017-08-14 2017-06-30 13F UNDER ARMOUR CL A 904311107 46,276 21,505 1,007
2017-05-03 2017-03-31 13F UNDER ARMOUR CL A 904311107 24,771 -350,806 -93.40 490 -95.51 0.0034
2017-01-30 2016-12-31 13F UNDER ARMOUR CL A 904311107 375,577 -70,549 -15.81 10,911 -36.77 0.0805
2016-10-24 2016-09-30 13F UNDER ARMOUR CL A 904311107 446,126 -9,544 -2.09 17,256 4.04 0.1272
2016-07-29 2016-06-30 13F UNDER ARMOUR CL A 904311107 455,670 -51,672 -10.18 16,586 -61.46 0.1379
2016-05-12 2016-03-31 13F UNDER ARMOUR CL A 904311107 507,342 -167,658 -24.84 43,038 -20.90 0.3491
2016-02-03 2015-12-31 13F UNDER ARMOUR CL A 904311107 675,000 -20,323 -2.92 54,412 -19.14 0.4366
2015-11-16 2015-09-30 13F UNDER ARMOUR CL A 904311107 695,323 -36,643 -5.01 67,294 10.19 0.5928
2015-08-17 2015-06-30 13F UNDER ARMOUR CL A 904311107 731,966 3,425 0.47 61,073 3.81 0.4799
2015-06-02 2015-03-31 13F/A-1 UNDER ARMOUR CL A 904311107 728,541 66,763 10.09 58,830 30.92 0.4538
2015-05-15 2015-03-31 13F UNDER ARMOUR CL A 904311107 728,541 29,200
2015-02-12 2014-12-31 13F UNDER ARMOUR CL A 904311107 661,778 634,803 2,353.30 44,935 2,310.68 0.3240
2014-11-12 2014-09-30 13F UNDER ARMOUR CL A 904311107 26,975 9,917 58.14 1,864 83.65 0.0175
2014-08-13 2014-06-30 13F UNDER ARMOUR CL A 904311107 17,058 8,529 100.00 1,015 3.78 0.0095
2014-05-08 2014-03-31 13F UNDER ARMOUR CL A 904311107 8,529 2,100 32.66 978 74.33 0.0095
2014-01-14 2013-12-31 13F UNDER ARMOUR CL A 904311107 6,429 0 0.00 561 9.78 0.0057
2013-11-12 2013-09-30 13F UNDER ARMOUR CL A 904311107 6,429 0 0.00 511 32.38 0.0056
2013-08-15 2013-06-30 13F UNDER ARMOUR CL A 904311107 6,429 6,429 386 0.0045
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.