SCHEDULE 13D/A 0001407029 XXXXXXXX LIVE 14 Common Stock 03/05/2026 false 0001397187 550021109 lululemon athletica inc.

1818 Cornwall Avenue Vancouver A1 V6J 1C7

Dennis J. Wilson 604-737-7232 21 Water Street, Suite 600 Vancouver, British Columbia Z4 V6B 1A1 0001407029 N Dennis J. Wilson a OO N Z4 3852.00 9901004.00 3852.00 9901004.00 9904856.00 N 8.4 IN Y Anamered Investments Inc. a OO N A1 0.00 4755217.00 0.00 4755217.00 4755217.00 N 4.1 CO 0002003936 N LIPO Investments (USA), Inc. a OO N A1 0.00 3401596.00 0.00 3401596.00 3401596.00 N 2.9 CO Y Wilson 5 Foundation a OO N A1 0.00 829325.00 0.00 829325.00 829325.00 N 0.7 OO Y Wilson 5 Foundation Management Ltd. a OO N A1 0.00 829325.00 0.00 829325.00 829325.00 N 0.7 CO Y Five Boys Investments ULC a OO N A1 0.00 91760.00 0.00 91760.00 91760.00 N 0.1 OO Y Shannon Wilson a OO N Z4 0.00 1098309.00 0.00 1098309.00 1098309.00 N 0.9 IN 0001972360 N Low Tide Properties Ltd. a OO N A1 0.00 554122.00 0.00 554122.00 554122.00 N 0.5 CO Y House of Wilson Ltd. a N Z4 0.00 0.00 0.00 0.00 0.00 Y 0.0 CO Y Laura Gentile a N X1 0.00 0.00 0.00 0.00 0.00 Y 0.0 IN Y Eric Hirshberg a N X1 0.00 0.00 0.00 0.00 0.00 Y 0.0 IN Y Marc Maurer a N V8 0.00 0.00 0.00 0.00 0.00 Y 0.0 IN Common Stock lululemon athletica inc. 1818 Cornwall Avenue Vancouver A1 V6J 1C7 This Amendment No. 14 (this "Amendment") is being filed by Dennis J. Wilson, Anamered Investments Inc. ("Anamered"), LIPO Investments (USA), Inc. ("LIPO"), Wilson 5 Foundation ("Wilson 5"), Wilson 5 Foundation Management Ltd. ("Wilson 5 Trustee"), Five Boys Investments ULC ("Five Boys"), Shannon Wilson, Low Tide Properties Ltd. ("Low Tide"), House of Wilson Ltd. ("House of Wilson"), Laura Gentile, Eric Hirshberg and Marc Maurer (collectively, the "Reporting Persons") and amends and supplements the Schedule 13D filed with the U.S. Securities and Exchange Commission (the "SEC") by the Reporting Persons on February 14, 2019 (as amended, the "Schedule 13D") to reflect certain updates to the information previously reported. The number of shares of Issuer common stock beneficially owned by the Reporting Persons has not changed since the filing of Amendment No. 13 to the Schedule 13D filed by the reporting persons thereto on February 27, 2026. The Items below amend the information disclosed under the corresponding Items in the Schedule 13D as described below. Capitalized terms used but not defined in this Amendment shall have the same meanings ascribed to them in the Schedule 13D. Except as specifically provided herein, this Amendment does not modify any of the information previously reported in the Schedule 13D. Item 2(f) of the Schedule 13D is hereby amended and restated in its entirety as follows: Each of Anamered, LIPO, Wilson 5 Trustee and Low Tide is organized as a British Columbia corporation. Wilson 5 is organized as a trust governed by the laws of British Columbia and a Canadian registered charity. Five Boys is organized as a British Columbia unlimited liability company. House of Wilson is organized as a Canadian federal corporation. Each of Mr. Wilson and Mrs. Wilson is a citizen of Canada. Each of Ms. Gentile and Mr. Hirshberg is a citizen of the United States of America. Mr. Maurer is a citizen of Switzerland. Item 4 of the Schedule 13D is hereby amended and supplemented as follows: On March 5, 2026, Mr. Wilson issued a press release, a copy of which is attached as Exhibit 99.1 to this Amendment, announcing the launch of the campaign website CreativityFirstlulu.com (the "Creativity First lulu Website"). The Creativity First lulu Website sets forth certain steps that Mr. Wilson believes the Issuer should take to restore investor confidence, including empowering creative leadership, rebuilding the knowledge and systems that can deliver products more quickly, avoiding chasing revenue at the expense of brand value, and recommitting to the Issuer's original muse. The Creativity First lulu Website also highlights Mr. Maurer, Ms. Gentile, and Mr. Hirshberg as the three highly qualified independent director candidates that Mr. Wilson has nominated for election to the Board at the Annual Meeting. The information contained in Exhibit 99.1 of this Amendment is incorporated herein by reference. Item 7 of the Schedule 13D is hereby amended and supplemented as follows: Exhibit 99.1 Press Release Titled "Chip Wilson Launches Website in Campaign for Change at lululemon" Dennis J. Wilson /s/ Dennis J. Wilson 03/09/2026 Anamered Investments Inc. /s/ Dennis J. Wilson 03/09/2026 LIPO Investments (USA), Inc. /s/ Dennis J. Wilson 03/09/2026 Wilson 5 Foundation /s/ Dennis J. Wilson 03/09/2026 Wilson 5 Foundation Management Ltd. /s/ Dennis J. Wilson 03/09/2026 Five Boys Investments ULC /s/ Dennis J. Wilson 03/09/2026 Shannon Wilson /s/ Shannon Wilson 03/09/2026 Low Tide Properties Ltd. /s/ Dennis J. Wilson 03/09/2026 House of Wilson Ltd. /s/ Dennis J. Wilson 03/09/2026 Laura Gentile /s/ Laura Gentile 03/09/2026 Eric Hirshberg /s/ Eric Hirshberg 03/09/2026 Marc Maurer /s/ Marc Maurer 03/09/2026