Under Armour (UAA)

Under Armour on one page: short interest, daily short volume, fails to deliver, 13F holders, financials, earnings dates and insider trades. Listed on NYSE, classified by the SEC as apparel & other finishd prods of fabrics & similar matl.

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65.1M

Short interest

settlement 2026-09-30

6.0

Days to cover

-0.9 days vs prior

56.2%

Short share of volume

2026-10-09

300

Fails to deliver

settlement 2026-09-14

Thu 5 Nov

Next earnings

estimated date

Insider flow, 90 days

0 buys, 0 sells

As of 2026-10-09.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in UAA is 65,144,528 shares, up 12,250,195 shares over the last month. Over the last 48 readings it ranged from 25,531,417 shares (31 December 2024) to 66,025,388 shares (31 December 2025). The latest reading sits at the top of that range. At the reported average volume of 10.9M shares a day that is 6.0 days to cover.

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Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-09-30	65,144,528	+21.8%	10,935,603	5.96
2026-09-15	53,494,344	+1.1%	7,830,249	6.83
2026-08-31	52,894,333	+4.2%	7,234,838	7.31
2026-08-14	50,761,021	+12.5%	10,537,252	4.82
2026-07-31	45,138,758	-16.1%	7,391,170	6.11
2026-07-15	53,772,299	-4.9%	7,310,156	7.36
2026-06-30	56,524,047	+19.9%	11,524,969	4.90
2026-06-15	47,132,115	-2.6%	6,398,450	7.37
2026-05-29	48,417,499	-2.4%	8,488,712	5.70
2026-05-15	49,603,078	+17.6%	10,925,737	4.54
2026-04-30	42,191,728	-6.7%	7,319,057	5.76
2026-04-15	45,207,948	+8.2%	6,663,808	6.78
2026-03-31	41,778,591	+0.5%	8,041,711	5.20
2026-03-13	41,558,872	-4.3%	13,416,509	3.10
2026-02-27	43,444,560	-3.6%	8,089,491	5.37
2026-02-13	45,082,872	-14.3%	14,524,212	3.10
2026-01-30	52,578,876	-16.7%	12,032,768	4.37
2026-01-15	63,089,989	-4.5%	14,388,815	4.38
2025-12-31	66,025,388	+19.9%	15,778,364	4.18
2025-12-15	55,046,504	-5.7%	7,257,147	7.59
2025-11-28	58,340,698	+5.4%	8,857,540	6.59
2025-11-14	55,374,058	+7.1%	11,890,632	4.66
2025-10-31	51,713,038	+13.0%	9,209,081	5.62
2025-10-15	45,767,384	+7.6%	8,873,219	5.16

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of UAA volume is 56.2%, down 4.6 points over the last five sessions. Over the last 30 readings it ranged from 33.5% (7 October 2026) to 71.8% (17 September 2026). The latest reading is 3.4 points below the 30-session average of 59.6%, on 3.8M shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-10-09	2.1M	3.8M	56.2%	32,907
2026-10-08	2.5M	4.2M	59.1%	21,535
2026-10-07	2.7M	8.2M	33.5%	18,563
2026-10-06	2.7M	5.0M	53.5%	14,321
2026-10-05	2.1M	3.9M	54.1%	4,305
2026-10-02	4.3M	7.0M	60.8%	31,114
2026-10-01	3.5M	7.0M	50.9%	31,182
2026-09-30	2.2M	4.8M	46.0%	3,029
2026-09-29	2.1M	3.7M	56.9%	3
2026-09-28	3.9M	6.2M	62.6%	29,803
2026-09-25	2.5M	4.2M	59.7%	0
2026-09-24	2.9M	5.3M	55.0%	1,017
2026-09-23	3.8M	5.7M	67.9%	4,565
2026-09-22	2.7M	4.4M	62.4%	5,869
2026-09-21	3.8M	5.8M	65.9%	82
2026-09-18	3.6M	5.4M	66.3%	16,585
2026-09-17	5.0M	7.0M	71.8%	1,293
2026-09-16	2.3M	3.8M	61.6%	1,656
2026-09-15	2.6M	4.1M	64.3%	16,049
2026-09-14	2.2M	3.4M	65.5%	5,216
2026-09-11	2.7M	4.4M	61.2%	8,330
2026-09-10	3.1M	4.6M	66.0%	5,388
2026-09-09	1.9M	2.6M	71.5%	0
2026-09-08	1.3M	2.2M	58.7%	0
2026-09-04	1.2M	2.1M	58.9%	8
2026-09-03	1.7M	2.6M	63.6%	11,879
2026-09-02	1.5M	2.6M	57.6%	482
2026-09-01	2.3M	3.5M	64.1%	521
2026-08-31	1.5M	2.4M	64.0%	93
2026-08-28	1.1M	2.3M	48.0%	4,991

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 14 September 2026, the fails-to-deliver balance in UAA is 300 shares, down 23,380 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (13 July 2026) to 123,686 shares (29 June 2026). The latest reading sits at the bottom of that range.

Settlement	Shares failed	Price	Value
2026-09-14	300	$5.11	$2K
2026-09-10	23,680	$4.90	$116K
2026-09-01	2,012	$5.04	$10K
2026-08-27	7,530	$5.15	$39K
2026-08-25	3,889	$5.37	$21K
2026-08-24	19,597	$5.39	$106K
2026-08-13	12,376	$5.26	$65K
2026-08-10	38,132	$6.11	$233K
2026-08-05	192	$6.84	$1K
2026-08-04	13,703	$6.78	$93K
2026-08-03	1,000	$6.65	$7K
2026-07-29	61,944	$7.14	$442K
2026-07-28	60,281	$7.08	$427K
2026-07-27	60,004	$7.03	$422K
2026-07-24	52,536	$6.74	$354K
2026-07-20	30,093	$7.43	$224K
2026-07-16	21,528	$6.85	$147K
2026-07-14	4,858	$6.75	$33K
2026-07-13	2	$6.79	$14
2026-07-10	201	$6.59	$1K
2026-07-08	22,163	$6.74	$149K
2026-07-07	12,951	$6.81	$88K
2026-07-06	391	$6.63	$3K
2026-06-30	92,622	$6.19	$573K
2026-06-29	123,686	$6.30	$779K
2026-06-23	8,000	$5.91	$47K
2026-06-22	8,459	$6.06	$51K
2026-06-17	34,213	$5.84	$200K
2026-06-15	245	$6.05	$1K
2026-06-12	15,866	$6.01	$95K

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for UAA in the last 90 days. The most recent filings are listed below. Latest filing: WATSA V PREM ET AL (10% owner) on 2026-01-26.

Date	Insider	Title	Type	Shares	Price	Value	Owned after
2026-01-26	WATSA V PREM ET AL	10% owner	Buy	266K	$6.30	$1.7M	42.2M
2026-01-26	WATSA V PREM ET AL	10% owner	Buy	730K	$6.18	$4.5M	20.1M
2026-01-23	WATSA V PREM ET AL	10% owner	Buy	928K	$6.15	$5.7M	19.4M
2026-01-22	WATSA V PREM ET AL	10% owner	Buy	411K	$6.15	$2.5M	18.5M
2021-12-01	Stanton John Patrick	EVP, General Counsel	Gift	4K	$0.00	$0	41K
2021-08-24	SANDERS HARVEY	Director	Sell	10K	$24.01	$252K	235K
2021-08-10	COLTHARP DOUGLAS E	Director	Gift	75K	$0.00	$0	75K
2020-12-17	Stanton John Patrick	EVP, General Counsel	Sell	1K	$17.39	$17K	0
2020-11-18	COLTHARP DOUGLAS E	Director	Gift	23K	$0.00	$0	55K
2020-02-17	Stanton John Patrick	EVP, General Counsel	Tax withholding	8K	$17.19	$142K	45K
2020-02-17	Stanton John Patrick	EVP, General Counsel	Option exercise	18K	$3.58	$64K	53K
2020-02-15	Eskridge Kevin	Chief Product Officer	Tax withholding	319	$0.00	$0	19K
2016-11-09	Plank Kevin A	Exec.Chairman & Brand Chief	Sell	106	$31.74	$3K	0
2016-10-27	Plank Kevin A	Exec.Chairman & Brand Chief	Sell	132	$31.25	$4K	106
2016-10-26	Plank Kevin A	Exec.Chairman & Brand Chief	Sell	158	$32.03	$5K	238
2016-02-29	Plank Kevin A	Exec.Chairman & Brand Chief	Buy	23	$83.90	$2K	396
2016-02-10	Plank Kevin A	Exec.Chairman & Brand Chief	Buy	55	$75.14	$4K	373
2016-02-04	Plank Kevin A	Exec.Chairman & Brand Chief	Buy	48	$79.76	$4K	318
2015-12-01	Plank Kevin A	Exec.Chairman & Brand Chief	Buy	50	$87.08	$4K	270
2015-07-24	Plank Kevin A	Exec.Chairman & Brand Chief	Buy	47	$96.13	$5K	220
2015-07-23	Plank Kevin A	Exec.Chairman & Brand Chief	Buy	67	$96.20	$6K	173
2015-05-08	Plank Kevin A	Exec.Chairman & Brand Chief	Buy	23	$79.13	$2K	106
2015-03-16	Plank Kevin A	Exec.Chairman & Brand Chief	Buy	83	$77.17	$6K	83
2015-03-03	Plank Kevin A	Exec.Chairman & Brand Chief	Sell	84	$76.32	$6K	0
2015-02-05	Plank Kevin A	Exec.Chairman & Brand Chief	Sell	59	$73.44	$4K	84
2014-10-23	Plank Kevin A	Exec.Chairman & Brand Chief	Buy	50	$66.42	$3K	143
2014-09-04	Plank Kevin A	Exec.Chairman & Brand Chief	Sell	17	$72.57	$1K	93
2014-07-10	Plank Kevin A	Exec.Chairman & Brand Chief	Buy	110	$58.45	$6K	110

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

13F holders

Tracked managers holding UAA at their latest 13F. JSON

7 of the 30 tracked managers held UAA at their latest 13F, $97.2M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $48.4M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 2 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
D. E. Shaw & Co.	2026-06-30	7.6M	$48.4M	0.02%	+1.8M
AQR Capital Management	2026-06-30	2.6M	$16.1M	0.01%	+1.6M
Millennium Management	2026-06-30	2.0M	$12.6M	0.00%	-1.4M
Two Sigma Investments	2026-06-30	1.7M	$11.1M	0.01%	+959K
Point72 Asset Management	2026-06-30	888K	$5.7M	0.01%	+582K
Citadel Advisors	2026-06-30	487K	$3.1M	0.00%	-1.7M
Renaissance Technologies	2026-06-30	35K	$223K	0.00%	new

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q1 FY 2027 (quarter ended 2026-06-30) Under Armour reported revenue of $1.10B, down 3.2% from the same quarter a year earlier, and net income of $545K (0.00 diluted EPS). In FY 2026 it generated -$75.1M of operating cash flow and spent $25.0M on buybacks. As of 2026-06-30, cash was $396.0M against $591.2M of debt.

Cash: $396.0M
Debt: $591.2M
Equity: $1.43B
Total assets: $4.10B

Quarterly, last 8 quarters

Quarter	Period end	Revenue	Net income	Margin	Diluted EPS
Q1 FY 2027	2026-06-30	$1.10B	$545K	0.0%	0.00
Q4 FY 2026derived	2026-03-31	$1.17B	-$43.4M	-3.7%	n/a
Q3 FY 2026	2025-12-31	$1.33B	-$430.8M	-32.4%	-1.01
Q2 FY 2026	2025-09-30	$1.33B	-$18.8M	-1.4%	-0.04
Q1 FY 2026	2025-06-30	$1.13B	-$2.6M	-0.2%	-0.01
Q4 FY 2025derived	2025-03-31	$1.18B	-$67.5M	-5.7%	n/a
Q3 FY 2025	2024-12-31	$1.40B	$1.2M	0.1%	0.00
Q2 FY 2025	2024-09-30	$1.40B	$170.4M	12.2%	0.39

Fiscal years, with buybacks and dividends

Fiscal year	Ends	Revenue	Net income	Operating cash flow	Capex	Buybacks	Dividends
FY 2026	2026-03-31	$4.97B	-$495.6M	-$75.1M	$87.1M	$25.0M	n/a
FY 2025	2025-03-31	$5.16B	-$201.3M	-$59.3M	$168.7M	$90.0M	n/a
FY 2024	2024-03-31	$5.70B	$232.0M	$354.0M	$150.3M	$75.0M	n/a
FY 2023	2023-03-31	$5.90B	$374.5M	-$39.9M	$158.1M	$125.0M	n/a
FY 2021	2021-12-31	$5.68B	$351.0M	$660.6M	$66.0M	$0	n/a

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30.

What this page is

Under Armour in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Under Armour (UAA), SEC CIK 1336917, listed on NYSE, classified by the SEC as apparel & other finishd prods of fabrics & similar matl. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest: FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume: FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-09.JSON and CSV
Fails to deliver: SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-14.JSON and CSV
13F holders: SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials: SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Earnings dates: SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-07.JSON and CSV
Insider trades: SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-01-26.JSON and CSV
Company record: EDGAR filing index for CIK 1336917Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits: 10 requests a minute without a key, 30 with a free key from a free account.

How to read it

Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as apparel & other finishd prods of fabrics & similar matl

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Datasets

Frequently Asked Questions

How much of UAA is sold short?

65,144,528 shares were held short at the 2026-09-30 settlement, 6.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.

What is UAA's daily short volume?

On 2026-10-09, 2,113,730 of the 3,763,972 UAA shares reported to FINRA were sold short, 56.2% of the day's reported volume. Short volume is a flow for one day, not a position.

Does UAA have fails to deliver?

The SEC's latest file shows 300 UAA shares failed to deliver at settlement 2026-09-14. Fails are reported per settlement date and published twice a month with a lag.

Are UAA insiders buying or selling?

No open-market insider trades were reported for UAA in the last 90 days. The most recent filings are listed below. Latest filing: WATSA V PREM ET AL (10% owner) on 2026-01-26.

What did UAA report last quarter?

Which tracked 13F managers own UAA?

7 of the 30 tracked 13F managers held UAA shares at their latest filing, $97.2M in all. The largest: D. E. Shaw & Co. (7.6M shares, $48.4M), Cliff Asness's AQR Capital Management (2.6M shares, $16.1M), Izzy Englander's Millennium Management (2.0M shares, $12.6M), Two Sigma Investments (1.7M shares, $11.1M), Steve Cohen's Point72 Asset Management (888K shares, $5.7M), Ken Griffin's Citadel Advisors (487K shares, $3.1M). The table above lists all 7.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.