Under Armour, Inc.
CH ˙ SWX ˙ US9043111072
SecurityCH:UAA / Under Armour, Inc.
InstitutionIMC-Chicago, LLC
Latest Disclosed Ownership361,726 shares
Latest Disclosed Value $ 2,137,801
IMC-Chicago, LLC ownership in UAA / Under Armour, Inc.

On May 5, 2026 - IMC-Chicago, LLC filed a 13F-HR form disclosing ownership of 361,726 shares of Under Armour, Inc. (CH:UAA) valued at $2,137,801 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 736,696 shares of Under Armour, Inc.. This represents a change in shares of -50.90% during the quarter.

IMC-Chicago, LLC has a history of taking positions in derivatives of the underlying security (UAA) in the form of stock options. The firm currently holds call options representing 251,800 of underlying shares valued at $1,488,138 USD and put options representing 600,000 of underlying shares valued at $3,546,000 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

CH:UAA / Under Armour, Inc. Historical Put/Call Ratio
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)
2026-05-05 2026-03-31 13F UNDER ARMOUR CL A 904311107 361,726 -374,970 -50.90 2,138 -41.63 0.0007
2026-01-29 2025-12-31 13F UNDER ARMOUR CL A 904311107 736,696 38,131 5.46 3,661 5.05 0.0013
2025-11-04 2025-09-30 13F UNDER ARMOUR CL A 904311107 698,565 454,590 186.33 3,486 109.18 0.0013
2025-07-22 2025-06-30 13F UNDER ARMOUR CL A 904311107 243,975 -26,889 -9.93 1,666 -1.54 0.0007
2025-04-14 2025-03-31 13F UNDER ARMOUR CL A 904311107 270,864 94,482 53.57 1,693 15.89 0.0010
2025-01-27 2024-12-31 13F UNDER ARMOUR CL A 904311107 176,382 -3,194 -1.78 1,460 -8.75 0.0007
2024-10-25 2024-09-30 13F UNDER ARMOUR CL A 904311107 179,576 -129,329 -41.87 1,600 -22.33 0.0009
2024-07-15 2024-06-30 13F UNDER ARMOUR CL A 904311107 308,905 231,705 300.14 2,060 262.04 0.0013
2024-04-12 2024-03-31 13F UNDER ARMOUR CL A 904311107 77,200 23,054 42.58 570 19.79 0.0003
2024-02-09 2023-12-31 13F UNDER ARMOUR CL A 904311107 54,146 2,466 4.77 476 34.18 0.0003
2023-10-12 2023-09-30 13F UNDER ARMOUR CL A 904311107 51,680 51,680 354 0.0003
2023-07-14 2023-06-30 13F UNDER ARMOUR CL A 904311107 0 -52,709 -100.00 0 -100.00
2023-04-24 2023-03-31 13F UNDER ARMOUR CL A 904311107 52,709 52,709 500 0.0006
2023-04-24 2022-12-31 13F/A-1 UNDER ARMOUR CL A 904311107 0 -62,716 -100.00 0 -100.00
2023-02-09 2022-12-31 13F UNDER ARMOUR CL A 904311107 0 -62,716 0
2022-11-08 2022-09-30 13F UNDER ARMOUR CL A 904311107 62,716 62,716 417 0.0005
2022-08-05 2022-06-30 13F UNDER ARMOUR CL A 904311107 0 -17,073 -100.00 0 -100.00
2022-04-19 2022-03-31 13F UNDER ARMOUR CL A 904311107 17,073 -1,055 -5.82 291 -24.22 0.0003
2022-02-08 2021-12-31 13F UNDER ARMOUR CL A 904311107 18,128 -12,369 -40.56 384 -37.56 0.0003
2021-11-05 2021-09-30 13F UNDER ARMOUR CL A 904311107 30,497 30,497 615 0.0006
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-05 2026-03-31 13F UNDER ARMOUR CL A Call 251,800 -11.40 1,488 5.38 n/a n/a n/a
2026-05-05 2026-03-31 13F UNDER ARMOUR CL C Call 29,900 -89.48 173 -87.75 n/a n/a n/a
2026-01-29 2025-12-31 13F UNDER ARMOUR CL A Call 284,200 11.85 1,412 11.44 n/a n/a n/a
2025-11-04 2025-09-30 13F UNDER ARMOUR CL A Call 254,100 -17.29 1,268 -39.61 n/a n/a n/a
2025-07-22 2025-06-30 13F UNDER ARMOUR CL A Call 307,200 201.47 2,098 229.87 n/a n/a n/a
2025-04-14 2025-03-31 13F UNDER ARMOUR CL A Call 101,900 -11.16 637 -32.98 n/a n/a n/a
2025-04-14 2025-03-31 13F UNDER ARMOUR CL C Call 52,800 314 n/a n/a n/a
2025-01-27 2024-12-31 13F UNDER ARMOUR CL A Call 114,700 -4.66 950 -11.39 n/a n/a n/a
2025-01-27 2024-12-31 13F UNDER ARMOUR CL C Call 64,900 484 n/a n/a n/a
2024-10-25 2024-09-30 13F UNDER ARMOUR CL A Call 120,300 -9.07 1,072 21.43 n/a n/a n/a
2024-07-15 2024-06-30 13F UNDER ARMOUR CL A Call 132,300 -16.00 882 -24.10 n/a n/a n/a
2024-04-12 2024-03-31 13F UNDER ARMOUR CL A Call 157,500 58.45 1,162 33.10 n/a n/a n/a
2024-02-09 2023-12-31 13F UNDER ARMOUR CL A Call 99,400 -12.65 874 12.07 n/a n/a n/a
2023-10-12 2023-09-30 13F UNDER ARMOUR CL A Call 113,800 16.36 780 10.34 n/a n/a n/a
2023-07-14 2023-06-30 13F UNDER ARMOUR CL A Call 97,800 4.04 706 -20.85 n/a n/a n/a
2023-04-24 2023-03-31 13F UNDER ARMOUR CL A Call 94,000 -57.19 892 -60.02 n/a n/a n/a
2023-04-24 2022-12-31 13F/A UNDER ARMOUR CL A Call 219,600 69.18 2,231 158.52 n/a n/a n/a
2023-02-09 2022-12-31 13F UNDER ARMOUR CL A Call 219,600 2 n/a n/a n/a
2022-11-08 2022-09-30 13F UNDER ARMOUR CL A Call 129,800 -19.43 863 -35.69 n/a n/a n/a
2022-08-05 2022-06-30 13F UNDER ARMOUR CL A Call 161,100 22.51 1,342 -40.04 n/a n/a n/a
2022-04-19 2022-03-31 13F UNDER ARMOUR CL A Call 131,500 -14.44 2,238 -31.29 n/a n/a n/a
2022-02-08 2021-12-31 13F UNDER ARMOUR CL A Call 153,700 43.91 3,257 51.14 n/a n/a n/a
2021-11-05 2021-09-30 13F UNDER ARMOUR CL A Call 106,800 309.20 2,155 290.40 n/a n/a n/a
2021-08-06 2021-06-30 13F UNDER ARMOUR CL A Call 26,100 552 n/a n/a n/a
2021-05-14 2021-03-31 13F UNDER ARMOUR CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-17 2020-12-31 13F UNDER ARMOUR CL A Call 22,300 -24.66 383 15.36 n/a n/a n/a
2020-11-17 2020-09-30 13F UNDER ARMOUR CL A Call 29,600 -55.08 332 -48.29 n/a n/a n/a
2020-08-14 2020-06-30 13F UNDER ARMOUR CL A Call 65,900 110.54 642 122.92 n/a n/a n/a
2020-05-14 2020-03-31 13F UNDER ARMOUR CL A Call 31,300 -58.98 288 -82.52 n/a n/a n/a
2020-02-13 2019-12-31 13F UNDER ARMOUR CL A Call 76,300 210.16 1,648 235.64 n/a n/a n/a
2019-11-12 2019-09-30 13F UNDER ARMOUR CL A Call 24,600 -36.92 491 -50.35 n/a n/a n/a
2019-08-15 2019-06-30 13F UNDER ARMOUR CL A Call 39,000 47.73 989 77.24 n/a n/a n/a
2019-05-15 2019-03-31 13F UNDER ARMOUR CL A Call 26,400 -35.92 558 -23.35 n/a n/a n/a
2019-04-24 2018-12-31 13F UNDER ARMOUR CL A Call 41,200 728 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-05 2026-03-31 13F UNDER ARMOUR CL A Put 600,000 -24.07 3,546 -9.70 n/a n/a n/a
2026-05-05 2026-03-31 13F UNDER ARMOUR CL C Put 27,300 -96.55 158 -95.98 n/a n/a n/a
2026-01-29 2025-12-31 13F UNDER ARMOUR CL C Put 86,600 416 n/a n/a n/a
2026-01-29 2025-12-31 13F UNDER ARMOUR CL A Put 790,200 -1.26 3,927 -1.65 n/a n/a n/a
2025-11-04 2025-09-30 13F UNDER ARMOUR CL A Put 800,300 41.27 3,993 3.20 n/a n/a n/a
2025-11-04 2025-09-30 13F UNDER ARMOUR CL C Put 210,400 1,016 n/a n/a n/a
2025-07-22 2025-06-30 13F UNDER ARMOUR CL A Put 566,500 112.97 3,869 132.79 n/a n/a n/a
2025-04-14 2025-03-31 13F UNDER ARMOUR CL A Put 266,000 5.43 1,662 -20.44 n/a n/a n/a
2025-01-27 2024-12-31 13F UNDER ARMOUR CL A Put 252,300 18.56 2,089 10.18 n/a n/a n/a
2024-10-25 2024-09-30 13F UNDER ARMOUR CL A Put 212,800 -30.28 1,896 -6.83 n/a n/a n/a
2024-10-25 2024-09-30 13F UNDER ARMOUR CL C Put 42,200 353 n/a n/a n/a
2024-07-15 2024-06-30 13F UNDER ARMOUR CL A Put 305,200 57.81 2,036 42.61 n/a n/a n/a
2024-04-12 2024-03-31 13F UNDER ARMOUR CL A Put 193,400 246.59 1,427 191.22 n/a n/a n/a
2024-02-09 2023-12-31 13F UNDER ARMOUR CL A Put 55,800 -2.45 490 25.32 n/a n/a n/a
2023-10-12 2023-09-30 13F UNDER ARMOUR CL A Put 57,200 -20.00 392 -24.22 n/a n/a n/a
2023-07-14 2023-06-30 13F UNDER ARMOUR CL A Put 71,500 -31.32 516 -47.72 n/a n/a n/a
2023-04-24 2023-03-31 13F UNDER ARMOUR CL A Put 104,100 73.50 988 62.07 n/a n/a n/a
2023-04-24 2022-12-31 13F/A UNDER ARMOUR CL A Put 60,000 -28.23 610 9.53 n/a n/a n/a
2023-02-09 2022-12-31 13F UNDER ARMOUR CL A Put 60,000 1 n/a n/a n/a
2022-11-08 2022-09-30 13F UNDER ARMOUR CL A Put 83,600 12.67 556 -10.03 n/a n/a n/a
2022-08-05 2022-06-30 13F UNDER ARMOUR CL A Put 74,200 50.81 618 -26.16 n/a n/a n/a
2022-04-19 2022-03-31 13F UNDER ARMOUR CL A Put 49,200 -58.52 837 -66.69 n/a n/a n/a
2022-02-08 2021-12-31 13F UNDER ARMOUR CL A Put 118,600 22.14 2,513 28.28 n/a n/a n/a
2021-11-05 2021-09-30 13F UNDER ARMOUR CL A Put 97,100 1,959 n/a n/a n/a
2020-11-16 2020-09-30 13F UNDER ARMOUR CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-08-14 2020-06-30 13F UNDER ARMOUR CL A Put 43,700 426 n/a n/a n/a
2020-05-14 2020-03-31 13F UNDER ARMOUR CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-13 2019-12-31 13F UNDER ARMOUR CL A Put 25,400 19.81 549 29.79 n/a n/a n/a
2019-11-12 2019-09-30 13F UNDER ARMOUR CL A Put 21,200 68.25 423 32.60 n/a n/a n/a
2019-08-15 2019-06-30 13F UNDER ARMOUR CL A Put 12,600 -50.78 319 -41.04 n/a n/a n/a
2019-05-15 2019-03-31 13F UNDER ARMOUR CL A Put 25,600 -16.34 541 0.00 n/a n/a n/a
2019-04-24 2018-12-31 13F UNDER ARMOUR CL A Put 30,600 541 n/a n/a n/a
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.