Under Armour, Inc.
US ˙ NYSE ˙ US9043112062

SecurityUA / Under Armour, Inc.
InstitutionD. E. Shaw & Co., Inc.
ManagerDE Shaw
Latest Disclosed Ownership2,838,717 shares
Latest Disclosed Value $ 16,436,172
D. E. Shaw & Co., Inc. ownership in UA / Under Armour, Inc.

On May 15, 2026 - D. E. Shaw & Co., Inc. filed a 13F-HR form disclosing ownership of 2,838,717 shares of Under Armour, Inc. (US:UA) valued at $16,436,171 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,042,871 shares of Under Armour, Inc.. This represents a change in shares of -6.71% during the quarter. The current value of the position is $15,045,200 USD.

D. E. Shaw & Co., Inc. has a history of taking positions in derivatives of the underlying security (UA) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 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.

UA / 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)
2026-05-15 2026-03-31 13F UNDER ARMOUR CL C 904311206 2,838,717 -204,154 -6.71 16,436 12.54 0.0099
2026-02-17 2025-12-31 13F UNDER ARMOUR CL C 904311206 3,042,871 563,186 22.71 14,606 21.95 0.0080
2025-11-14 2025-09-30 13F UNDER ARMOUR CL C 904311206 2,479,685 1,281,448 106.94 11,977 54.01 0.0068
2025-08-14 2025-06-30 13F UNDER ARMOUR CL C 904311206 1,198,237 -500,381 -29.46 7,777 -23.06 0.0055
2025-05-15 2025-03-31 13F UNDER ARMOUR CL C 904311206 1,698,618 529,143 45.25 10,107 15.84 0.0090
2025-02-14 2024-12-31 13F UNDER ARMOUR CL C 904311206 1,169,475 -266,650 -18.57 8,724 -27.34 0.0064
2024-11-14 2024-09-30 13F UNDER ARMOUR CL C 904311206 1,436,125 -213,812 -12.96 12,006 11.43 0.0103
2024-08-14 2024-06-30 13F UNDER ARMOUR CL C 904311206 1,649,937 -33,387 -1.98 10,774 -10.35 0.0101
2024-05-15 2024-03-31 13F UNDER ARMOUR CL C 904311206 1,683,324 -936,748 -35.75 12,019 -45.07 0.0103
2024-02-14 2023-12-31 13F UNDER ARMOUR CL C 904311206 2,620,072 -1,525,723 -36.80 21,878 -17.29 0.0191
2023-11-14 2023-09-30 13F UNDER ARMOUR CL C 904311206 4,145,795 -1,030,022 -19.90 26,450 -23.84 0.0276
2023-08-14 2023-06-30 13F UNDER ARMOUR CL C 904311206 5,175,817 700,348 15.65 34,730 -9.03 0.0355
2023-05-15 2023-03-31 13F UNDER ARMOUR CL C 904311206 4,475,469 -299,665 -6.28 38,176 -10.37 0.0409
2023-02-14 2022-12-31 13F UNDER ARMOUR CL C 904311206 4,775,134 502,233 11.75 42,594 67.25 0.0471
2022-11-14 2022-09-30 13F UNDER ARMOUR CL C 904311206 4,272,901 2,693,696 170.57 25,467 112.76 0.0304
2022-08-15 2022-06-30 13F UNDER ARMOUR CL C 904311206 1,579,205 1,092,103 224.20 11,970 57.94 0.0140
2022-05-16 2022-03-31 13F UNDER ARMOUR CL C 904311206 487,102 -573,001 -54.05 7,579 -60.37 0.0071
2022-02-14 2021-12-31 13F UNDER ARMOUR CL C 904311206 1,060,103 -236,213 -18.22 19,124 -15.79 0.0159
2021-11-15 2021-09-30 13F UNDER ARMOUR CL C 904311206 1,296,316 -247,817 -16.05 22,711 -20.80 0.0205
2021-08-16 2021-06-30 13F UNDER ARMOUR CL C 904311206 1,544,133 1,439,236 1,372.05 28,675 1,381.15 0.0248
2021-05-17 2021-03-31 13F UNDER ARMOUR CL C 904311206 104,897 12,207 13.17 1,936 40.39 0.0019
2021-02-16 2020-12-31 13F UNDER ARMOUR CL C 904311206 92,690 -144,969 -61.00 1,379 -41.04 0.0012
2020-11-16 2020-09-30 13F UNDER ARMOUR CL C 904311206 237,659 -249,941 -51.26 2,339 -45.73 0.0024
2020-08-14 2020-06-30 13F UNDER ARMOUR CL C 904311206 487,600 411,179 538.04 4,310 599.68 0.0051
2020-05-15 2020-03-31 13F UNDER ARMOUR CL C 904311206 76,421 -280,383 -78.58 616 -87.97 0.0010
2018-05-15 2018-03-31 13F UNDER ARMOUR CL C 904311206 356,804 -427,397 -54.50 5,120 -74.06 0.0070
2017-02-14 2016-12-31 13F UNDER ARMOUR CL C 904311206 784,201 -363,557 -31.68 19,738 -49.21 0.0335
2016-11-14 2016-09-30 13F UNDER ARMOUR CL C 904311206 1,147,758 -63,054 -5.21 38,863 -11.82 0.0686
2016-08-15 2016-06-30 13F UNDER ARMOUR CL C 904311206 1,210,812 1,210,812 44,074 0.0813
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
(%)
2022-05-16 2022-03-31 13F UNDER ARMOUR CL C Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F UNDER ARMOUR CL C Call 182,900 0.00 3,300 3.00 n/a n/a n/a
2021-11-15 2021-09-30 13F UNDER ARMOUR CL C Call 182,900 0.00 3,204 -5.65 n/a n/a n/a
2021-08-16 2021-06-30 13F UNDER ARMOUR CL C Call 182,900 -1.61 3,396 -1.05 n/a n/a n/a
2021-05-17 2021-03-31 13F UNDER ARMOUR CL C Call 185,900 244.26 3,432 326.87 n/a n/a n/a
2021-02-16 2020-12-31 13F UNDER ARMOUR CL C Call 54,000 -1.82 804 48.61 n/a n/a n/a
2020-11-16 2020-09-30 13F UNDER ARMOUR CL C Call 55,000 175.00 541 7.55 n/a n/a n/a
2017-02-14 2016-12-31 13F UNDER ARMOUR CL C Call 20,000 0.00 503 -25.70 n/a n/a n/a
2016-11-14 2016-09-30 13F UNDER ARMOUR CL C Call 20,000 0.00 677 -7.01 n/a n/a n/a
2016-08-15 2016-06-30 13F UNDER ARMOUR CL C Call 20,000 728 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
(%)
2026-05-15 2026-03-31 13F UNDER ARMOUR CL C Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F UNDER ARMOUR CL C Put 200,000 0.00 960 -0.62 n/a n/a n/a
2025-11-14 2025-09-30 13F UNDER ARMOUR CL C Put 200,000 966 n/a n/a n/a
2022-05-16 2022-03-31 13F UNDER ARMOUR CL C Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F UNDER ARMOUR CL C Put 135,300 -46.52 2,441 -44.94 n/a n/a n/a
2021-11-15 2021-09-30 13F UNDER ARMOUR CL C Put 253,000 -0.59 4,433 -6.20 n/a n/a n/a
2021-08-16 2021-06-30 13F UNDER ARMOUR CL C Put 254,500 86.04 4,726 87.17 n/a n/a n/a
2021-05-17 2021-03-31 13F UNDER ARMOUR CL C Put 136,800 11.31 2,525 38.05 n/a n/a n/a
2021-02-16 2020-12-31 13F UNDER ARMOUR CL C Put 122,900 0.00 1,829 51.28 n/a n/a n/a
2020-11-16 2020-09-30 13F UNDER ARMOUR CL C Put 122,900 677.85 1,209 763.57 n/a n/a n/a
2020-08-14 2020-06-30 13F UNDER ARMOUR CL C Put 15,800 58.00 140 -27.08 n/a n/a n/a
2020-02-14 2019-12-31 13F UNDER ARMOUR CL C Put 10,000 0.00 192 6.08 n/a n/a n/a
2019-11-14 2019-09-30 13F UNDER ARMOUR CL C Put 10,000 0.00 181 -18.47 n/a n/a n/a
2019-08-14 2019-06-30 13F UNDER ARMOUR CL C Put 10,000 0.00 222 17.46 n/a n/a n/a
2019-05-15 2019-03-31 13F UNDER ARMOUR CL C Put 10,000 0.00 189 16.67 n/a n/a n/a
2019-02-14 2018-12-31 13F UNDER ARMOUR CL C Put 10,000 0.00 162 -16.92 n/a n/a n/a
2018-11-14 2018-09-30 13F UNDER ARMOUR CL C Put 10,000 0.00 195 -22.62 n/a n/a n/a
2017-02-14 2016-12-31 13F UNDER ARMOUR CL C Put 10,000 0.00 252 -25.66 n/a n/a n/a
2016-11-14 2016-09-30 13F UNDER ARMOUR CL C Put 10,000 0.00 339 -6.87 n/a n/a n/a
2016-08-15 2016-06-30 13F UNDER ARMOUR CL C Put 10,000 364 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.