ADV PART 2B

1. Brochure Supplement – Part 2B Stephen Christopher Buehler CRD#: 5331641 Astra Ventures Investment Partners LLC (dba Astra) 102 Alton Road Nashville, Tennessee 37205 901-230-5576 March 17, 2026 Part 2B (“Brochure Supplement”) This Brochure Supplement provides information about Stephen Christopher Buehler that supplements the Astra Ventures Investments Partners LLC’s Brochure (dba Astra). You should have received a copy of that Brochure. Please contact Stephen Buehler at 901-230- 5576, or at buehler@astravc.com if you did not receive the Brochure or if you have any additional questions about the contents of this supplement. Additional information about Stephen Christopher Buehler is available on the SEC’s website at www.adviserinfo.sec.gov/.  2. Item 2 – Education Background and Business Experience Stephen Christopher Buehler Founder Investment Advisory Representative Born: 1977 Formal Education after High School: Northwestern University—Kellogg School of Management—MBA Finance, Management and Strategy Mississippi State—Bachelor of Business Administration, Bachelor of Accountancy Professional Designations Completed: North American Securities Administrators Association (NASAA) Series 65 and Series 3 National Association of Securities Dealers (NASD) Series 7 and 63 The Series 65 designation qualifies an individual to act as an investment adviser representative (IAR), providing investment advice and managing client portfolios. It is administered by the North American Securities Administrators Association (NASAA) through FINRA. To achieve Series 65 designation, candidates must pass a 180-minute exam with 130 scored multiple-choice questions. The exam covers investment products (e.g., stocks, bonds, mutual funds), portfolio management, fiduciary duties, securities regulations, and ethical practices. The Series 3 designation qualifies an individual to engage in the solicitation, purchase, or sale of commodity futures contracts, options on futures, and related derivatives. It is administered by NASAA through FINRA. To achieve Series 3 designation, candidates must pass a 120-minute exam with 120 scored multiple-choice questions. The exam covers futures markets, hedging, margin requirements, trading strategies, regulatory frameworks (e.g., Commodity Exchange Act), and customer protection rules. The Series 7 designation qualifies an individual to act as a registered representative, selling a broad range of securities, including stocks, bonds, mutual funds, options, and certain alternative investments. It is administered by the Financial Industry Regulatory Authority (FINRA), formerly the National Association of Securities Dealers (NASD). To achieve Series 7 designation, candidates must pass a 225-minute exam with 125 scored multiple-choice questions. The exam covers investment products, risk analysis, client suitability, securities regulations, and trading practices. The Series 63 designation qualifies an individual to act as a securities agent, ensuring compliance with state securities laws (Blue Sky Laws). It is administered by NASAA through FINRA and is often paired with the Series 7. To achieve Series 63 designation,  candidates must pass a 75-minute exam with 60 scored multiple-choice questions. The exam covers state securities regulations, registration requirements, antifraud provisions, and ethical practices. Recent Business Background: Blackstone Advisory Partners, LLC 4/2010-7/2018 Merrill Lynch, Pierce, Fenner and Smith INC 10/2008-3/2010 3. Item 3—Disciplinary Information Mr. Buehler has not been in the past nor is he currently the subject to any criminal, civil, or disciplinary action. 4. Item 4—Other Business Activities Mr. Buehler serves as an independent director on the Board of Directors of Braiin Ltd., which as of February 12, 2026 is traded as a public security listed on the Nasdaq under ticker “BRAI”. In this role, Stephen Buehler could have access to material non-public information. To mitigate the conflict and prevent insider trading risks (under Section 10(b) of the Securities Exchange Act of 1934 and Rule 10b-5 thereunder, as applicable to advisers via fiduciary duties), Astra implemented policies and procedures as detailed in the ADV Part 2A. This company does not operate in the financial services industry. 5. Item 5—Additional Compensation Mr. Buehler is compensated by Braiin Ltd. for his role as an independent director as described in Item 4. 6. Item 6—Supervision The firm has adopted policies and procedures to oversee, monitor and control the activities of its Supervised Persons. 7. Item 7—Requirements for State-Registered Advisers Mr. Buehler has not had a judgement against him nor has he been found liable for any of the events listed below. 1. An award or otherwise being found liable in an arbitration claim alleging damages in excess of $2,500, involving any of the following: a) an investment or an investment-related business or activity;  b) fraud, false statement(s), or omissions; c) theft, embezzlement, or other wrongful taking of property; d) bribery, forgery, counterfeiting, or extortion; or e) dishonest, unfair, or unethical practices. 2. An award or otherwise being found liable in a civil, self-regulatory organization, or administrative proceeding involving any of the following: a) an investment or an investment-related business or activity; b) fraud, false statement(s), or omissions; c) theft, embezzlement, or other wrongful taking of property; d) bribery, forgery, counterfeiting, or extortion; or e) dishonest, unfair, or unethical practices.  1. Brochure Supplement – Part 2B Charles Edgar Lalanne CRD#: 3005327 Astra Ventures Investment Partners LLC (dba Astra) 102 Alton Road Nashville, Tennessee 37205 901-230-5576 March 2026 Part 2B (“Brochure Supplement”) This Brochure Supplement provides information about Charles Edgar Lalanne that supplements the Astra Ventures Investments Partners LLC’s Brochure (dba Astra). You should have received a copy of that Brochure. Please contact Stephen Buehler at 901-230- 5576, or at buehler@astravc.com if you did not receive the Brochure or if you have any additional questions about the contents of this supplement. Additional information about Charles Edgar Lalanne is available on the SEC’s website at www.adviserinfo.sec.gov/.  2. Item 2 – Education Background and Business Experience Charles Edgar Lalanne Chief Investment Officer (CIO) Investment Advisory Representative Born: 1976 Formal Education after High School: Northwestern University—Kellogg School of Management—MBA Finance, Decision Sciences Dartmouth College —Bachelor of Arts, Earth Sciences Professional Designations Completed: North American Securities Administrators Association (NASAA) Series 65 and Series 3 National Futures Association (NFA) Series 3 National Association of Securities Dealers (NASD) Series 7 and 63 The Series 65 designation qualifies an individual to act as an investment adviser representative (IAR), providing investment advice and managing client portfolios. It is administered by the North American Securities Administrators Association (NASAA) through FINRA. To achieve Series 65 designation, candidates must pass a 180-minute exam with 130 scored multiple-choice questions. The exam covers investment products (e.g., stocks, bonds, mutual funds), portfolio management, fiduciary duties, securities regulations, and ethical practices. The Series 3 designation qualifies an individual to engage in the solicitation, purchase, or sale of commodity futures contracts, options on futures, and related derivatives. It is administered by NASAA through FINRA. To achieve Series 3 designation, candidates must pass a 120-minute exam with 120 scored multiple-choice questions. The exam covers futures markets, hedging, margin requirements, trading strategies, regulatory frameworks (e.g., Commodity Exchange Act), and customer protection rules. The Series 7 designation qualifies an individual to act as a registered representative, selling a broad range of securities, including stocks, bonds, mutual funds, options, and certain alternative investments. It is administered by the Financial Industry Regulatory Authority (FINRA), formerly the National Association of Securities Dealers (NASD). To achieve Series 7 designation, candidates must pass a 225-minute exam with 125 scored multiple-choice questions. The exam covers investment products, risk analysis, client suitability, securities regulations, and trading practices. The Series 63 designation qualifies an individual to act as a securities agent, ensuring compliance with state securities laws (Blue Sky Laws). It is administered by NASAA  through FINRA and is often paired with the Series 7. To achieve Series 63 designation, candidates must pass a 75-minute exam with 60 scored multiple-choice questions. The exam covers state securities regulations, registration requirements, antifraud provisions, and ethical practices. Recent Business Background: Tse Capital Management LLC 4/2017-12/2020 Bloomberg LP 5/2016-3/2017 3. Item 3—Disciplinary Information Mr. Lalanne has not been in the past nor is he currently the subject to any criminal, civil, or disciplinary action. 4. Item 4—Other Business Activities No securities-related other business activities 5. Item 5—Additional Compensation None 6. Item 6—Supervision The firm has adopted policies and procedures to oversee, monitor and control the activities of its Supervised Persons. 7. Item 7—Requirements for State-Registered Advisers Mr. Lalanne has not had a judgement against him nor has he been found liable for any of the events listed below. 3. An award or otherwise being found liable in an arbitration claim alleging damages in excess of $2,500, involving any of the following: f) an investment or an investment-related business or activity; g) fraud, false statement(s), or omissions; h) theft, embezzlement, or other wrongful taking of property; i) bribery, forgery, counterfeiting, or extortion; or j) dishonest, unfair, or unethical practices. 4. An award or otherwise being found liable in a civil, self-regulatory organization, or administrative proceeding involving any of the following:  f) an investment or an investment-related business or activity; g) fraud, false statement(s), or omissions; h) theft, embezzlement, or other wrongful taking of property; i) bribery, forgery, counterfeiting, or extortion; or j) dishonest, unfair, or unethical practices.