Boost Run Inc.: 5%+ holders

Boost Run Inc. has 12 Schedule 13D or 13G filings on record since 2026-05-15. 8 holders' latest filing reports 5% or more of class a common stock, par value $0.0001 per share. Each figure below is the holder's own, as filed, with the filing linked.

Holders

Purpose of Transaction (Item 4)

Andrew Karos

The information regarding the Business Combination set forth in Item 3 above is incorporated into this Item 4 by reference. Reporting Person serves a member of the Board of Directors and as the Chief Executive Officer of the Issuer, and, in such capacity, may have influence over the corporate activities of the Issuer, including activities which may relate to items described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. Except as described in this Schedule 13D, the Reporting Person does not have any present plans or proposals that relate to or would result in any of the actions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D, although, subject to the agreements described herein, the Reporting Person, at any time, and from time to time, may review, reconsider and change his position and/or change his purpose and/or develop such plans and may seek to influence management of the Issuer or the Board with respect to the business and affairs of the Issuer and may from time to time consider pursuing or proposing such matters with advisors, the Issuer, or other persons.Item 4 of the SCHEDULE 13D filed 2026-05-15

Harilaos Georgakopoulos

The information regarding the Business Combination set forth in Item 3 above is incorporated into this Item 4 by reference. Harilaos Georgakopoulos serves a member of the Board of Directors and as the Chief Operating Officer of the Issuer, and, in such capacity, may have influence over the corporate activities of the Issuer, including activities which may relate to items described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. Except as described in this Schedule 13D, the Reporting Persons do not have any present plans or proposals that relate to or would result in any of the actions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D, although, subject to the agreements described herein, the Reporting Persons, at any time, and from time to time, may review, reconsider and change their position and/or change their purpose and/or develop such plans and may seek to influence management of the Issuer or the Board with respect to the business and affairs of the Issuer and may from time to time consider pursuing or proposing such matters with advisors, the Issuer, or other persons.Item 4 of the SCHEDULE 13D filed 2026-05-15

B. Luke Weil

The Reporting Persons acquired their securities in connection with the formation and initial public offering of Willow Lane Acquisition Corp. and the subsequent business combination (the "Business Combination") between Willow Lane Acquisition Corp. and Boost Run Holdings, LLC, which closed on May 8, 2026. On June 9, 2026, the Sponsor transferred 1,272,885 shares of Class A Common Stock and 1,101,986 Private Warrants to the SPV pursuant to the Transfer Agreement. In connection with this transfer, the Company instructed Continental Stock Transfer & Trust Company, the Company's transfer agent, to remove the escrow legend from the transferred securities and to deliver such securities to the SPV bearing the Insider Letter Agreement legend and the Rule 144 affiliate legend. Mr. Weil serves as a member of the Board of Directors of the Company. Pursuant to the Weil Consulting Agreement, Mr. Weil provides advice on business strategy and corporate governance matters and uses his reasonable efforts to introduce the Company to potential clients and investors. Mr. Weil, as a director and consultant to the Company, may have influence over the corporate activities of the Company, including activities which may relate to the transactions described in clauses (a) through (j) of Item 4 of Schedule 13D. The Reporting Persons may from time to time acquire additional securities of the Company, or sell or otherwise dispose of securities of the Company, in open market transactions, in …The first part of Item 4 of the SCHEDULE 13D filed 2026-06-15; the filing has the rest

Sean Goodrich

On September 14, the Reporting Persons, directly and indirectly sold 500,000 shares of Class A Common Stock at a price of $14.00 per share in an open market transaction. The shares were sold for investment purposes in the ordinary course. Mr. Goodrich serves as a non-employee member of the Board of Directors of Boost Run Inc. As a director of the Company, Mr. Goodrich may have influence over the corporate activities of the Company, including activities which may relate to the transactions described in clauses (a) through (j) of Item 4 of Schedule 13D. The Reporting Persons may from time to time acquire additional securities of the Company, or sell or otherwise dispose of securities of the Company, in open market transactions, in privately negotiated transactions, or otherwise, in any manner permitted by applicable law. Except as set forth herein, the Reporting Persons do not have any present plans or proposals that relate to or would result in any of the actions specified in clauses (a) through (j) of Item 4 of Schedule 13D, although the Reporting Persons reserve the right to develop such plans or proposals in the future.Item 4 of the SCHEDULE 13D/A filed 2026-09-16

Goodrich ILMJS LLC

The information regarding the Business Combination set forth in Item 3 above is incorporated into this Item 4 by reference. Sean Goodrich is the managing member of Goodrich ILMJS LLC. Mr. Goodrich serves as a member of the Board of Directors of the Issuer, and, in such capacity, may have influence over the corporate activities of the Issuer, including activities which may relate to items described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. Except as described in this Schedule 13D, the Reporting Person does not have any present plans or proposals that relate to or would result in any of the actions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D, although, subject to the agreements described herein, the Reporting Person, at any time, and from time to time, may review, reconsider and change its position and/or change its purpose and/or develop such plans and may seek to influence management of the Issuer or the Board with respect to the business and affairs of the Issuer and may from time to time consider pursuing or proposing such matters with advisors, the Issuer, or other persons.Item 4 of the SCHEDULE 13D filed 2026-05-18

Timeline

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.

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