Under Armour, Inc.
A maker of athletic apparel, footwear, and accessories, best known for moisture-wicking performance gear like its HeatGear shirts worn by athletes and everyday gym-goers. It was founded in 1996 by University of Maryland football player Kevin Plank, who started sewing shirts in his grandmother's Washington, D.C. basement. The name came from a happy accident: Plank wanted to call the company "Body Armor," but his brother misheard him as saying "Under Armour" — and the British spelling stuck.
Bought 43.63M
Granted 4.55M · Sold 17.25M
Granted 1.86M
Granted 242.0K
Granted 34.4K
Granted 609.2K
Granted 367.9K · Sold 47.5K
Granted 179.4K
Granted 439.8K · Sold 33.5K
Granted 657.0K
Granted 471.3K
Granted 43.2K
Granted 239.2K
Granted 161.1K · Bought 100.0K
Granted 340.8K
Granted 43.2K
Granted 184.5K
Granted 214.8K · Sold 69.8K
Granted 125.4K
Granted 173.1K · Bought 50.0K
Granted 94.3K
Granted 103.8K
Granted 80.3K · Bought 100.0K
Granted 80.3K · Bought 100.0K
Granted 186.8K
Granted 68.0K
Granted 91.7K
Granted 231.8K · Sold 43.2K
Granted 88.7K · Bought 2.0K
Granted 122.7K
Granted 108.4K
Granted 42.4K · Sold 2.9K
Granted 61.0K
Granted 21.3K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Fairfax Financial Holdings LTD/ Can +1 co-filer10% owner · 26 transactions | — | 131.73M | — | 43.63M | — |
| Plank Kevin APresident and CEO, Director, 10% owner · 27 transactions | — | 55.63M | 4.55M | — | 17.25M |
| Linnartz StephaniePresident & CEO, Director · 3 transactions | — | 1.64Mas of Feb 2024 | 1.86M | — | — |
| Frisk PatrikCEO & President · 2 transactions | +6% | 1.62Mas of Feb 2022 | 242.0K | — | — |
| Sanders HarveyDirector · 9 transactions | — | 697.5Kas of Jan 2023 | 34.4K | — | — |
| Trent KaraChief Merchandising Officer · 12 transactions | — | 631.6K | 609.2K | — | — |
| Browne ColinChief Operating Officer · 7 transactions | +50.4% | 626.9Kas of May 2023 | 367.9K | — | 47.5K |
| Coltharp Douglas EDirector · 23 transactions | — | 570.7K | 179.4K | — | — |
| Bergman DavidChief Financial Officer · 14 transactions | +63.8% | 563.4Kas of Jun 2025 | 439.8K | — | 33.5K |
| Curran ShawnChief Supply Chain Officer · 9 transactions | — | 555.8K | 657.0K | — | — |
| Saidi YassineChief Product Officer · 7 transactions | — | 433.4Kas of Jun 2025 | 471.3K | — | — |
| Stanton John PatrickEVP, General Counsel · 5 transactions | +3.2% | 372.8Kas of Mar 2022 | 43.2K | — | — |
| Peake AdamPresident of the Americas · 3 transactions | — | 341.5K | 239.2K | — | — |
| El-Erian MohamedDirector · 24 transactions | +350.2% | 335.7K | 161.1K | 100.0K | — |
| Liedtke EricChief Marketing Officer · 6 transactions | — | 289.9K | 340.8K | — | — |
| Pugliese Stephanie L.President, Americas · 3 transactions | +3.4% | 262.6Kas of Feb 2022 | 43.2K | — | — |
| Collier Lisa K.Chief Product Officer · 6 transactions | +149.4% | 260.3Kas of May 2023 | 184.5K | — | — |
| Rocker TchernaviaChief Administrative Officer · 9 transactions | +12.8% | 254.4Kas of May 2024 | 214.8K | — | 69.8K |
| Baratto MassimoChief Consumer Officer · 5 transactions | — | 225.8Kas of May 2023 | 125.4K | — | — |
| Gibbs David WDirector · 27 transactions | — | 223.1K | 173.1K | 50.0K | — |
| Olson Eric TDirector · 6 transactions | +88.4% | 201.0K | 94.3K | — | — |
| Katz KarenDirector · 19 transactions | — | 197.6Kas of Jul 2025 | 103.8K | — | — |
| Fitzpatrick Dawn N.Director · 8 transactions | — | 180.3K | 80.3K | 100.0K | — |
| Sweeney Robert JohnDirector · 8 transactions | — | 180.3K | 80.3K | 100.0K | — |
| Dausch James AChief Strategy Officer · 3 transactions | — | 175.7Kas of Aug 2024 | 186.8K | — | — |
| Baxter DavidPresident, Americas · 3 transactions | — | 169.8Kas of May 2023 | 68.0K | — | — |
| Devard JerriDirector · 4 transactions | +118.3% | 169.2K | 91.7K | — | — |
| Shadman MehriChief Legal Officer · 18 transactions | — | 166.6K | 231.8K | — | 43.2K |
| Aumen Eric JChief Accounting Officer · 7 transactions | — | 144.3K | 88.7K | 2.0K | — |
| Whitesell PatrickDirector · 14 transactions | — | 122.7K | 122.7K | — | — |
| Everson CarolynDirector · 18 transactions | — | 108.4K | 108.4K | — | — |
| Maheshwari AdityaChief Accounting Officer · 6 transactions | +46.2% | 77.3Kas of May 2023 | 42.4K | — | 2.9K |
| Smith Eugene DuboisDirector · 3 transactions | — | 61.0K | 61.0K | — | — |
| Moore WestleyDirector · 4 transactions | +77.4% | 48.8Kas of Oct 2022 | 21.3K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: +26.53M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.