As of November 6, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Under Armour, Inc. The largest reported stake is Fairfax Financial Holdings Limited's, at 24%. 17 filings are on record since August 6, 2025 (Schedule 13D/A, May 15, 2026).
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Key facts
- · Holder: Frasers Group plc · Percent: 8.8% · SCHEDULE 13G
- · Holder: BlackRock, Inc. · Percent: 14.3% · SCHEDULE 13G/A
- · Holder: BlackRock, Inc. · Percent: 10.9% · SCHEDULE 13G/A
- · Reporting person: V. Prem Watsa · Sole voting: 0 · Shared voting: 45,300,872 · Sole dispositive: 0 · Shared dispositive: 45,300,872 · SCHEDULE 13D/A, 2026-05-15
- · Holder: Vanguard Portfolio Management · Percent: 5.75% · SCHEDULE 13G
Under Armour, Inc. has 17 Schedule 13D or 13G filings on record since 2025-08-06. 4 holders' latest filing reports 5% or more of class a common stock. Each figure below is the holder's own, as filed, with the filing linked.
Layoffs on record: 2 filings or notices, latest 2026-05-12 (layoff filings and notices).
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Fairfax Financial Holdings Limited | 24% | 45,300,872 | SCHEDULE 13D/A, 2026-05-15 | 2026-05-13 |
| BlackRock, Inc. | 14.3% | 27,032,958 | SCHEDULE 13G/A, 2026-07-30 | 2026-06-30 |
| Frasers Group plc | 8.8% | 16,576,500 | SCHEDULE 13G, 2026-10-01 | 2026-09-24 |
| Vanguard Portfolio Management | 5.75% | 10,863,416 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| Dimensional Fund Advisors LP | 3.8% | 7,245,789 | SCHEDULE 13G/A, 2026-01-21 | 2025-12-31 |
| Fmr LLC | 0.4% | 775,367 | SCHEDULE 13G/A, 2025-09-08 | 2025-08-29 |
| Alyeska Investment Group, L.P. | 0% | 0 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-27 | 2026-03-13 |
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More on Under Armour, Inc. and the records around it.
Under Armour, Inc. elsewhere on the record
- Layoff notices May 2026
- Who owns it
Companies that share a holder
- V. PREM WATSA also filed stake reports on 4 other companies: EQUINOX GOLD CORP. (Aug 2026), Kennedy-Wilson Holdings, Inc. (Jun 2026), ORLA MINING LTD. (Dec 2025)
- Alyeska Investment Group, L.P. also filed stake reports on 81 other companies: ABUNDIA GLOBAL IMPACT GROUP, INC. (Aug 2026), Bakkt, Inc. (Aug 2026), BATTALION OIL CORP (Aug 2026)
- Dimensional Fund Advisors LP also filed stake reports on 366 other companies: Acadia Healthcare Co Inc (Oct 2026), ADT Inc (Oct 2026), AGCO Corp (Oct 2026)
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What the Full Report on Under Armour, Inc. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| V. Prem Watsa | 0 | 45,300,872 | 0 | 45,300,872 | SCHEDULE 13D/A, 2026-05-15 |
| The Second 810 Holdco Ltd. | 0 | 45,300,872 | 0 | 45,300,872 | SCHEDULE 13D/A, 2026-05-15 |
| The Second 1109 Holdco Ltd. | 0 | 45,300,872 | 0 | 45,300,872 | SCHEDULE 13D/A, 2026-05-15 |
| The Sixty Two Investment Company Limited | 0 | 45,300,872 | 0 | 45,300,872 | SCHEDULE 13D/A, 2026-05-15 |
| Fairfax Financial Holdings Limited | 0 | 45,300,872 | 0 | 45,300,872 | SCHEDULE 13D/A, 2026-05-15 |
| Ffhl Group Ltd. | 0 | 34,077,356 | 0 | 34,077,356 | SCHEDULE 13D/A, 2026-05-15 |
| Fairfax (Barbados) International Corp. | 0 | 60,950 | 0 | 60,950 | SCHEDULE 13D/A, 2026-05-15 |
| Wentworth Insurance Company Ltd. | 0 | 60,950 | 0 | 60,950 | SCHEDULE 13D/A, 2026-05-15 |
| Fairfax (Us) Inc. | 0 | 31,098,326 | 0 | 31,098,326 | SCHEDULE 13D/A, 2026-05-15 |
| Odyssey Group Holdings, Inc. | 0 | 11,280,564 | 0 | 11,280,564 | SCHEDULE 13D/A, 2026-05-15 |
| Odyssey Reinsurance Company | 0 | 11,280,564 | 0 | 11,280,564 | SCHEDULE 13D/A, 2026-05-15 |
| Hudson Insurance Company | 0 | 265,190 | 0 | 265,190 | SCHEDULE 13D/A, 2026-05-15 |
| Hudson Excess Insurance Company | 0 | 167,670 | 0 | 167,670 | SCHEDULE 13D/A, 2026-05-15 |
| Zenith National Insurance Corp. | 0 | 75,440 | 0 | 75,440 | SCHEDULE 13D/A, 2026-05-15 |
| Zenith Insurance Company | 0 | 75,440 | 0 | 75,440 | SCHEDULE 13D/A, 2026-05-15 |
| Crum & Forster Holdings Corp. | 0 | 19,742,322 | 0 | 19,742,322 | SCHEDULE 13D/A, 2026-05-15 |
| United States Fire Insurance Company | 0 | 19,742,322 | 0 | 19,742,322 | SCHEDULE 13D/A, 2026-05-15 |
| The North River Insurance Company | 0 | 4,862,016 | 0 | 4,862,016 | SCHEDULE 13D/A, 2026-05-15 |
| Fairfax Uk Holdings Limited | 0 | 2,918,080 | 0 | 2,918,080 | SCHEDULE 13D/A, 2026-05-15 |
| Brit Group Holdings Limited | 0 | 2,918,080 | 0 | 2,918,080 | SCHEDULE 13D/A, 2026-05-15 |
| Brit Insurance Holdings Limited | 0 | 2,918,080 | 0 | 2,918,080 | SCHEDULE 13D/A, 2026-05-15 |
| Brit Reinsurance (Bermuda) Limited | 0 | 2,918,080 | 0 | 2,918,080 | SCHEDULE 13D/A, 2026-05-15 |
| 1102952 B.C. Unlimited Liability Company | 0 | 11,223,516 | 0 | 11,223,516 | SCHEDULE 13D/A, 2026-05-15 |
| Allied World Assurance Company Holdings, Ltd | 0 | 11,223,516 | 0 | 11,223,516 | SCHEDULE 13D/A, 2026-05-15 |
The latest filing identifies Under Armour, Inc. by CUSIP 904311107 and gives its principal executive office as 101 PERFORMANCE DRIVE, BALTIMORE, MD 21230 (SCHEDULE 13G, 2026-10-01).
What the percentages are based on
The percentage of Class A Shares that are beneficially owned by each of the Reporting Persons are set forth in rows 9 and 11 of the second part of the cover page to this Schedule 13G, and such information is incorporated herein by reference.Frasers Group plc, SCHEDULE 13G, 2026-10-01
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-06 | Fmr LLC | 12.7% | SCHEDULE 13G/A |
| 2025-08-14 | Alyeska Investment Group, L.P. | 0% | SCHEDULE 13G/A |
| 2025-09-08 | Fmr LLC | 0.4% | SCHEDULE 13G/A |
| 2025-12-18 | V. Prem Watsa | 9% | SCHEDULE 13G |
| 2025-12-29 | V. Prem Watsa | 16.1% | SCHEDULE 13G/A |
| 2026-01-05 | Fairfax Financial Holdings Limited | 22.2% | SCHEDULE 13D |
| 2026-01-08 | BlackRock, Inc. | 10.6% | SCHEDULE 13G/A |
| 2026-01-21 | Dimensional Fund Advisors LP | 3.8% | SCHEDULE 13G/A |
| 2026-01-21 | BlackRock, Inc. | 8.3% | SCHEDULE 13G/A |
| 2026-01-30 | The Vanguard Group | 9.09% | SCHEDULE 13G/A |
| 2026-03-27 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-03-27 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-29 | Vanguard Portfolio Management | 5.75% | SCHEDULE 13G |
| 2026-05-15 | Fairfax Financial Holdings Limited | 24% | SCHEDULE 13D/A |
| 2026-07-08 | BlackRock, Inc. | 10.9% | SCHEDULE 13G/A |
| 2026-07-30 | BlackRock, Inc. | 14.3% | SCHEDULE 13G/A |
| 2026-10-01 | Frasers Group plc | 8.8% | SCHEDULE 13G |
Questions about who owns Under Armour, Inc.
Who owns Under Armour, Inc.?
On this page, 4 holders' latest ownership filings report 5% or more of Under Armour, Inc.: Fairfax Financial Holdings Limited (24%, Schedule 13D/A, filed 2026-05-15), BlackRock, Inc. (14.3%, Schedule 13G/A, filed 2026-07-30), Frasers Group plc (8.8%, Schedule 13G, filed 2026-10-01) and Vanguard Portfolio Management (5.75%, Schedule 13G, filed 2026-04-29).
Who are the largest shareholders of Under Armour, Inc.?
By the share each holder's latest filing reports, the largest holders of Under Armour, Inc. on this page are Fairfax Financial Holdings Limited (24%), BlackRock, Inc. (14.3%) and Frasers Group plc (8.8%).
When did Fairfax Financial Holdings Limited buy into Under Armour, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Fairfax Financial Holdings Limited on this page is the Schedule 13D, filed 2026-01-05, reporting 22.2%; its latest, Schedule 13D/A filed 2026-05-15, reports 24%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 17 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.