SEC ownership of Under Armour, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001336917.

Comparable stake leader

FAIRFAX FINANCIAL HOLDINGS LTD/ CAN

Disclosed value leader

FAIRFAX FINANCIAL HOLDINGS LTD/ CAN

Comparable rows

50/50

Latest evidence

01 Jul 2026

Top shareholders Insider holders Latest transactions
Public ticker
UAA, UA on NYSE
Parsed ownership sources
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
FAIRFAX FINANCIAL HOLDINGS LTD/ CAN
Ranking: Comparable ownership first, then disclosed value
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
FAIRFAX FINANCIAL HOLDINGS LTD/ CAN
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
01 Jul 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001336917
Issuer location
Baltimore, MD

Ownership snapshot

Top shareholders of Under Armour, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
FAIRFAX FINANCIAL HOLDING...
Disclosed value leader
FAIRFAX FINANCIAL HOLDING...
Comparable rows
50/50
Latest evidence
01 Jul 2026
13F 13D/G 3/4/5 Lead comparable stake: 24% 13D/G row: FAIRFAX FINANCIAL HOLDINGS LTD/ CAN Showing 1-8 of 50 holder rows.

Quick read

FAIRFAX FINANCIAL HOLDINGS LTD/ CAN leads the comparable SEC ownership view at 24%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens FAIRFAX FINANCIAL HOLDINGS LTD/ CAN's linked filing trail.
Comparable ownership Top 5
FAIRFAX FINANCIAL HOLDINGS LTD/ CAN 24%
BlackRock, Inc. 11%
VANGUARD PORTFOLIO MANAGEMENT LLC 5.8%
DIMENSIONAL FUND ADVISORS LP 3.8%
FMR LLC 0.4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
FAIRFAX FINANCIAL HOLDINGS LTD/ CAN
13F 13D/G 3/4/5
Company · V. PREM WATSA · 10%+ Owner
13F 13D/G 3/4/5
24%
from 13D/G
$380,640,114
65,000,000 shares
mixed-class rows
 — 31 Mar 2026
BlackRock, Inc.
13F 13D/G
Company
13F 13D/G
11%
from 13D/G
$220,101,767
37,581,873 shares
mixed-class rows
 — 31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13F 13D/G
Company · Vanguard Portfolio Management
13F 13D/G
5.8%
from 13D/G
$102,396,740
17,460,358 shares
mixed-class rows
 — 31 Mar 2026
DIMENSIONAL FUND ADVISORS LP
13F 13D/G
Company
13F 13D/G
3.8%
from 13D/G
$117,104,292
20,049,588 shares
mixed-class rows
 — 31 Mar 2026
FMR LLC
13D/G 13F
Company
13D/G 13F
0.4%
$5,094,161
775,367 shares
 -$152,021,482 29 Aug 2025
Kara Trent
3/4/5
Chief Merchandising Officer
3/4/5
0.31%
$3,657,253
631,650 shares
 — 14 May 2026
Shawn Curran
3/4/5
Chief Supply Chain Officer
3/4/5
0.27%
$3,218,302
555,838 shares
 — 14 May 2026
Yassine Saidi
3/4/5
Chief Product Officer
3/4/5
0.23%
$2,959,074
465,996 shares
 — 03 Jun 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to buying over the last 12 months. Net value: +$232,207,216.

Buys
$232,207,216
Insiders: 6
Sells
$0
Insiders: 0
Net
+$232,207,216
Shares: +45,106,888
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 45,106,888 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 2,356,688 0 $11,738,158 $0 +$11,738,158
3-6 13,583,722 0 $80,550,462 $0 +$80,550,462
6-9 28,864,433 0 $138,407,436 $0 +$138,407,436
9-12 302,045 0 $1,511,160 $0 +$1,511,160

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 37 reporting-owner rows connected to Under Armour, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
37
Largest Forms 3/4/5 holder
Watsa V Prem Et al
Net 12M change
+$232,207,216
Latest report
01 Jul 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Watsa V Prem Et al 10%+ Owner $357,273,074 +$224,826,977 +170% Filing P/S 12 May 2026
FAIRFAX FINANCIAL HOLDINGS LTD/ CAN 10%+ Owner $220,896,080 +$5,869,079 +2.7% Filing P/S 12 May 2026
Kevin A. Plank President and CEO, Director, 10%+ Owner $122,631,265 Mixed 15 May 2026
Stephanie C. Linnartz President & CEO, Director $10,047,987 Mixed 27 Feb 2024
Patrik Frisk CEO & President $9,936,765 Mixed 18 Feb 2022
Colin Browne Chief Operating Officer $3,842,719 Mixed 15 May 2023
David Bergman Chief Financial Officer $3,836,249 Mixed 03 Jun 2025
Kara Trent Chief Merchandising Officer $3,657,253 Mixed 14 May 2026
Douglas E. Coltharp Director $3,610,600 Median 01 Jul 2026
Shawn Curran Chief Supply Chain Officer $3,218,302 Mixed 14 May 2026
Yassine Saidi Chief Product Officer $2,959,074 Mixed 03 Jun 2025
Mohamed El-Erian Director $2,171,294 +$519,960 +31% Median 01 Jul 2026
Harvey L. Sanders Director $2,167,675 Mixed 03 Jan 2023
John P. Stanton EVP, General Counsel $2,035,154 Mixed 07 Mar 2022
Adam Peake President of the Americas $1,981,037 Mixed 14 May 2026
Eric Liedtke Chief Marketing Officer $1,678,526 Mixed 15 May 2026
Stephanie L. Pugliese President, Americas $1,609,671 Mixed 18 Feb 2022
Lisa K. Collier Chief Product Officer $1,595,811 Mixed 15 May 2023
Tchernavia Rocker Chief Administrative Officer $1,559,334 Mixed 15 May 2024
David W. Gibbs Director $1,415,391 Median 01 Jul 2026

Recent insider transactions for Under Armour, Inc.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Patrick Whitesell UA Class C Common Stock Award 3.19% 3,912 126,596 01 Jul 2026 Direct
Robert John Sweeney UA Class C Common Stock Award 2.39% 4,304 184,644 01 Jul 2026 Direct
David W. Gibbs UA Class C Common Stock Award 2.6% 4,499 177,555 01 Jul 2026 Direct
Dawn N. Fitzpatrick UA Class C Common Stock Award 2.39% 4,304 184,644 01 Jul 2026 Direct
Carolyn N. Everson UA Class C Common Stock Award 0.72% 782 109,214 01 Jul 2026 Direct
Mohamed El-Erian UA Class C Common Stock Award 4.63% 10,368 234,379 01 Jul 2026 Direct
Douglas E. Coltharp UA Class C Common Stock Award 1.75% 5,575 323,266 01 Jul 2026 Direct
Kevin A. Plank UA Class C Common Stock Tax liability -1.5% -61,636 4,041,298 15 May 2026 Direct
Mehri F. Shadman UA Class C Common Stock Tax liability -12.5% -23,490 165,054 15 May 2026 Direct
Eric Liedtke UA Class C Common Stock Tax liability -11.1% -34,233 274,669 15 May 2026 Direct
Kara Trent UA Class C Common Stock Tax liability -8% -54,907 631,650 15 May 2026 Direct
Shawn Curran UA Class C Common Stock Tax liability -8.68% -52,849 555,838 15 May 2026 Direct
Adam Peake UA Class C Common Stock Tax liability -2.66% -8,422 308,260 15 May 2026 Direct
Eric J. Aumen UA Class C Common Stock Tax liability -4.92% -7,467 144,293 15 May 2026 Direct
Reza Taleghani UA Employee Stock Option (Right to Buy) Award 957,855 957,855 14 May 2026 Direct
Kara Trent UA Class C Common Stock Award 49.3% 226,815 686,557 14 May 2026 Direct
Shawn Curran UA Class C Common Stock Award 45% 189,013 608,687 14 May 2026 Direct
Adam Peake UA Class C Common Stock Award 148% 189,013 316,682 14 May 2026 Direct
Eric J. Aumen UA Class C Common Stock Award 66.3% 60,484 151,760 14 May 2026 Direct
Watsa V Prem Et Al UA Class A Common Shares Purchase $500 $5.00 100 44,179,216 14 May 2026 See Footnote
Watsa V Prem Et al UA Class A Common Shares Purchase $500 $5.00 100 44,179,216 14 May 2026 See Footnote
Watsa V Prem Et Al UA Class A Common Shares Purchase 1.7% $3,677,860 $4.97 739,521 44,179,116 13 May 2026 See Footnote
Watsa V Prem Et al UA Class A Common Shares Purchase 1.7% $3,677,860 $4.97 739,521 44,179,116 13 May 2026 See Footnote
Watsa V Prem Et Al UA Class A Common Shares Purchase 1.02% $2,190,719 $4.99 438,723 43,439,595 12 May 2026 See Footnote
Watsa V Prem Et al UA Class A Common Shares Purchase 1.02% $2,190,719 $4.99 438,723 43,439,595 12 May 2026 See Footnote
David W. Gibbs UA Class C Common Stock Award 3.06% 5,134 173,056 01 Apr 2026 Direct
Patrick Whitesell UA Class C Common Stock Award 3.78% 4,464 122,683 01 Apr 2026 Direct
Robert John Sweeney UA Class C Common Stock Award 2.8% 4,911 180,341 01 Apr 2026 Direct
Dawn N. Fitzpatrick UA Class C Common Stock Award 2.8% 4,911 180,341 01 Apr 2026 Direct
Carolyn N. Everson UA Class C Common Stock Award 0.83% 893 108,431 01 Apr 2026 Direct
Mohamed El-Erian UA Class C Common Stock Award 5.58% 11,830 224,012 01 Apr 2026 Direct
Douglas E. Coltharp UA Class C Common Stock Award 2.04% 6,362 317,690 01 Apr 2026 Direct
Eric J. Aumen UA Class C Common Stock Tax liability -2.55% -2,376 90,702 15 Feb 2026 Direct
Reza Taleghani UA Employee Stock Option (Right to Buy) Award 1,069,520 1,069,520 13 Feb 2026 Direct
Kara Trent UA Class C Common Stock Award 8.46% 35,869 459,742 13 Feb 2026 Direct
Adam Peake UA Class C Common Stock Award 64.8% 50,216 127,669 13 Feb 2026 Direct
Watsa V Prem Et al UA Class A Common Shares Purchase 0.21% $564,942 $6.29 89,786 43,000,872 28 Jan 2026 See Footnote
Watsa V Prem Et al UA Class C Common Shares Purchase 4.87% $6,337,647 $6.20 1,022,333 21,999,128 28 Jan 2026 See Footnote
Watsa V Prem Et al UA Class A Common Shares Purchase 1.63% $4,323,197 $6.30 686,505 42,911,086 27 Jan 2026 See Footnote
Watsa V Prem Et al UA Class C Common Shares Purchase 4.18% $5,219,928 $6.20 842,481 20,976,795 27 Jan 2026 See Footnote
Watsa V Prem Et al UAA Class A Common Shares Purchase 0.63% $1,672,795 $6.30 265,658 42,224,581 26 Jan 2026 See Footnote
Watsa V Prem Et al UAA Class C Common Shares Purchase 3.76% $4,514,477 $6.18 730,238 20,134,314 26 Jan 2026 See Footnote
Watsa V Prem Et al UAA Class C Common Shares Purchase 5.02% $5,705,278 $6.15 928,397 19,404,076 23 Jan 2026 See Footnote
Watsa V Prem Et al UAA Class C Common Shares Purchase 2.28% $2,527,672 $6.15 411,057 18,475,679 22 Jan 2026 See Footnote
Watsa V Prem Et al UA Class C Common Shares Purchase 38.3% $29,461,500 $5.89 5,000,000 18,064,622 21 Jan 2026 See Footnote
Watsa V Prem Et al UA Class C Common Shares Purchase 15.7% $9,940,621 $5.62 1,769,581 13,064,622 20 Jan 2026 See Footnote
Watsa V Prem Et al UA Class C Common Shares Purchase 19.4% $10,282,404 $5.60 1,837,686 11,295,041 16 Jan 2026 See Footnote
Patrick Whitesell UAA Class C Common Stock Award 4.35% 4,931 118,219 02 Jan 2026 Direct
Robert John Sweeney UAA Class C Common Stock Award 3.19% 5,424 175,430 02 Jan 2026 Direct
David W. Gibbs UAA Class C Common Stock Award 3.49% 5,671 167,922 02 Jan 2026 Direct
* marks a reported price that did not pass the local price check.
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