TOMS Capital (BRUN) reports 3.1M Boost Run shares held for managed funds

Rhea-AI Filing Summary

TOMS Capital Investment Management LP reported beneficial ownership of Class A Common Stock of Boost Run Inc. on a Schedule 13G. The firm, a Delaware investment adviser, reported that funds and accounts it manages collectively hold 3,125,000 shares of Boost Run Class A Common Stock.

This stake represents 9.8% of the 31,895,656 shares of Class A Common Stock outstanding as of June 1, 2026, based on Boost Run’s Form 10-Q. TOMS Capital has shared voting and dispositive power over these shares, with no sole voting or dispositive power reported. The filing states it should not be construed as an admission that TOMS Capital is the beneficial owner for Section 13 purposes.

Key Figures

Shares beneficially owned: 3,125,000 shares Ownership percentage: 9.8% Shares outstanding: 31,895,656 shares +2 more

5 metrics

Shares beneficially owned 3,125,000 shares Class A Common Stock of Boost Run Inc. reported by TOMS Capital-managed funds

Ownership percentage 9.8% Percent of Boost Run Class A Common Stock outstanding as of June 1, 2026

Shares outstanding 31,895,656 shares Boost Run Class A Common Stock outstanding as of June 1, 2026 per Form 10-Q

Shared voting power 3,125,000 shares Shares over which TOMS Capital reports shared power to vote or direct the vote

Shared dispositive power 3,125,000 shares Shares over which TOMS Capital reports shared power to dispose or direct disposition

Key Terms

Schedule 13G, beneficial owner, shared voting power, shared dispositive power, +1 more

5 terms

Schedule 13G regulatory

"This statement is filed by TOMS Capital Investment Management LP ("TCIM" or the "Reporting Person")"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficial owner regulatory

"not be construed as an admission that the Reporting Person is, for the purposes of Section 13, the beneficial owner"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

shared voting power financial

"Shared Voting Power 3,125,000.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 3,125,000.00"

investment manager financial

"held by certain funds and accounts to which TCIM serves as the investment manager"

FAQ

What percentage of Boost Run Inc. (BRUN) does TOMS Capital Investment Management report owning?

TOMS Capital Investment Management reports beneficial ownership of 9.8% of Boost Run Inc.’s Class A Common Stock. This percentage is based on 31,895,656 shares outstanding as of June 1, 2026, as disclosed in Boost Run’s Form 10-Q.

How many Boost Run Inc. (BRUN) shares are reported by TOMS Capital Investment Management?

TOMS Capital-managed funds report holding 3,125,000 shares of Boost Run Inc. Class A Common Stock. These shares are held by funds and accounts for which TOMS Capital acts as investment manager and over which it has shared voting and dispositive power.

Does TOMS Capital Investment Management have sole or shared voting power over its BRUN shares?

TOMS Capital reports 0 shares with sole voting power and 3,125,000 shares with shared voting power. It also reports no sole dispositive power and 3,125,000 shares with shared dispositive power over Boost Run’s Class A Common Stock.

On whose behalf does TOMS Capital Investment Management hold Boost Run Inc. (BRUN) shares?

The Boost Run shares are held by certain funds and accounts for which TOMS Capital serves as investment manager. These TCIM Funds have the right to receive dividends and sale proceeds from the Class A Common Stock reported in the Schedule 13G.

What is the share count used to calculate TOMS Capital’s 9.8% BRUN ownership?

The 9.8% ownership figure is calculated using 31,895,656 shares of Boost Run Class A Common Stock outstanding as of June 1, 2026, as reported in Boost Run’s Form 10-Q for the quarter ended March 31, 2026.

Who signed the Schedule 13G filing for TOMS Capital Investment Management regarding BRUN?

The Schedule 13G was signed by Josh Levine, General Counsel and Chief Compliance Officer of TOMS Capital Investment Management. The signature is dated August 14, 2026, certifying the information reported about the Boost Run Inc. holdings.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 08/14/2026 - 02:45 PM Accepted by SEC EDGAR 08/14/2026 - 02:45 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Boost Run Inc.

(Name of Issuer)

Class A Common Stock, par value $0.0001 per share

(Title of Class of Securities)

09940T100

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 09940T100

1

Names of Reporting Persons

TOMS Capital Investment Management LP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 3,125,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,125,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,125,000.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.8 %

12

Type of Reporting Person (See Instructions)

IA, PN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Boost Run Inc.
(b)	Address of issuer's principal executive offices: 5 Revere Drive, Suite 200, Northbrook, IL 60062
Item 2.
(a)	Name of person filing: This statement is filed by TOMS Capital Investment Management LP ("TCIM" or the "Reporting Person"), with respect to Class A common stock, par value $0.0001 per share (the "Class A Common Stock"), of Boost Run Inc. (the "Issuer") held by certain funds and accounts to which TCIM serves as the investment manager (the "TCIM Funds"). TCIM Management GP LLC ("TCIM GP") is the General Partner of TCIM, and Noam Gottesman is the Senior Member of TCIM GP. Each of TCIM and TCIM GP have established a management board which has been delegated responsibility for all aspects of the management and operation of TCIM and TCIM GP. The filing of this statement should not be construed as an admission that the Reporting Person is, for the purposes of Section 13 of the Securities Exchange Act of 1934, as amended, the beneficial owner of the securities reported herein.
(b)	Address or principal business office or, if none, residence: 450 West 14th Street, 13th Floor, New York, NY 10014
(c)	Citizenship: Delaware
(d)	Title of class of securities: Class A Common Stock, par value $0.0001 per share
(e)	CUSIP Number(s): 09940T100
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: The information required by Item 4(a) is set forth in Row 9 of the cover page for the Reporting Person and is incorporated herein by reference. The percentage set forth in this Schedule 13G is calculated based upon an aggregate of 31,895,656 shares of Class A Common Stock outstanding as of June 1, 2026, as reported in the Issuer's Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2026, filed with the Securities and Exchange Commission on June 1, 2026.
(b)	Percent of class: 9.8%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information required by Item 4(c)(i) is set forth in Row 5 of the cover page for the Reporting Person and is incorporated herein by reference.
	(ii) Shared power to vote or to direct the vote: The information required by Item 4(c)(ii) is set forth in Row 6 of the cover page for the Reporting Person and is incorporated herein by reference.
	(iii) Sole power to dispose or to direct the disposition of: The information required by Item 4(c)(iii) is set forth in Row 7 of the cover page for the Reporting Person and is incorporated herein by reference.
	(iv) Shared power to dispose or to direct the disposition of: The information required by Item 4(c)(iv) is set forth in Row 8 of the cover page for the Reporting Person and is incorporated herein by reference.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. See Item 2(a). The TCIM Funds have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Class A Common Stock reported herein.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

TOMS Capital Investment Management LP

Signature:	/s/ Josh Levine
Name/Title:	By: Josh Levine, General Counsel and Chief Compliance Officer
Date:	08/14/2026