Boost Run (BRUN) director Jeremy Steinberg files initial insider Form 3

Rhea-AI Filing Summary

Boost Run Inc. director Jeremy Rayne Steinberg filed an initial Form 3, which is the baseline ownership report required for new insiders. The excerpt shows no reported transactions, exercises, gifts, or tax withholdings, and no share holdings or derivative positions are listed at this time.

Key Terms

Form 3, reporting person, ten percent owner

3 terms

Form 3 regulatory

"Form 3 shows Jeremy Rayne Steinberg as a director of Boost Run Inc."

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

reporting person regulatory

""reportingPersons": [{"name": "Steinberg Jeremy Rayne""

ten percent owner regulatory

""is_ten_percent_owner": 0"

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Steinberg Jeremy Rayne

(Last) (First) (Middle)

C/O BOOST RUN INC.

5 REVERE DRIVE, SUITE 200

(Street)

NORTHBROOK, ILLINOIS 60062

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
05/08/2026

3. Issuer Name and Ticker or Trading Symbol
Boost Run Inc. [ BRUN ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Rayne Steinberg	06/16/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What does Boost Run Inc. (BRUN) disclose in Jeremy Steinberg's Form 3?

The Form 3 shows Jeremy Rayne Steinberg as a director of Boost Run Inc. It reports no stock or derivative holdings and no recent transactions in this excerpt, serving as an initial baseline ownership filing for this insider.

Does Jeremy Steinberg buy or sell any BRUN shares in this Form 3?

No. The transaction summary lists zero buys, zero sells, and zero derivative exercises. This Form 3 functions only as an initial ownership statement and does not reflect any trading activity in Boost Run Inc. shares by Jeremy Steinberg.

What insider position does Jeremy Steinberg hold at Boost Run Inc. (BRUN)?

Jeremy Rayne Steinberg is identified as a director of Boost Run Inc. in the Form 3. He is not listed as an officer and is not flagged as a ten percent owner in the provided disclosure details.

Are there any derivative securities reported for Jeremy Steinberg in BRUN?

No derivative securities are reported. The derivative summary is empty and derivativeTransactionCount is zero, indicating no options, warrants, or other derivative positions are listed for Jeremy Steinberg in this initial Form 3 excerpt.

Does the BRUN Form 3 for Jeremy Steinberg include any footnote restrictions?

The footnotes section appears but contains no substantive text in this excerpt. There are therefore no disclosed limitations, 10b5-1 trading plans, or beneficial ownership disclaimers attributable to footnotes in the provided Form 3 data.