INDEPENDENT VERDICT
Alpha Prosperity US Fund, LLC - Series B is not a conventional U.S.-domiciled investment manager simply because "US Fund" appears in its legal name. The vehicle is a Delaware series LLC formed in 2021, but its principal place of business is c/o Mourant Governance Services Cayman Ltd. in Grand Cayman, while the Form D identifies Geneva-based Alternative Investment Solutions SA as Investment Manager and Tel Aviv-based Tal Alpha Yizum Vekidum Asakim (2003) LTD as an investment adviser/promoter. Alon Tal signs the filings as Authorized Person. Series B first appeared in SEC records in September 2024 and reported $2.5 million sold under an indefinite Rule 506(b) offering; annual amendments followed in September 2025 and again on September 11, 2026. This makes the fund's most useful research story its international legal and management architecture rather than a single headline fundraising event.
A DELAWARE FUND OPERATED THROUGH CAYMAN, GENEVA AND TEL AVIV
The entity chain is unusually explicit in the SEC filing. Alpha Prosperity US Fund Series B is incorporated in Delaware but uses a Grand Cayman principal address at 94 Solaris Avenue through Mourant Governance Services Cayman Ltd. The SEC then separately names Alternative Investment Solutions SA, located at Rue du Rhône 67 in Geneva, as Investment Manager and Tal Alpha Yizum Vekidum Asakim (2003) LTD at Igal Alon 96 in Tel Aviv as an investment adviser/promoter. This structure suggests that legal domicile, administration and portfolio/advisory functions are spread across multiple jurisdictions. That is not inherently unusual for alternative funds, but it means investors should understand which entity actually makes investment decisions, which entity calculates NAV, where assets are custodied and which jurisdiction governs disputes.
Alternative Investment Solutions SA is independently identifiable in the Swiss commercial register ecosystem. Public Swiss corporate data list it as an active Geneva company founded in 2016, operating in fund management and financial services, with registered office at the same Rue du Rhône 67 address shown in Alpha Prosperity's SEC filings. Its stated corporate purpose includes asset-management activity, financial services and structured-product intermediation. That is meaningful cross-verification because the SEC filing does not merely reference a generic offshore service provider; the named investment manager corresponds to an active Swiss financial-services company.
THE FUND FAMILY IS LARGER THAN SERIES B
Series B is only one legal compartment in a broader Alpha Prosperity US Fund series architecture. SEC records separately identify Series C, Series D and Series E, each organized as a Delaware LLC and using the same Grand Cayman Mourant address. Series C records date back to 2021; Series D has annual filings in 2024, 2025 and 2026; Series E filed in 2024 and amended in 2025. The same two related entities—Alternative Investment Solutions SA and Tal Alpha Yizum Vekidum Asakim (2003) LTD—recur across these vehicles, and Alon Tal repeatedly signs as Authorized Person. This repeated pattern provides stronger evidence of a deliberate multi-series fund architecture than a one-off SPV.
The separate series also matter because investors should not assume they all hold identical assets or pursue exactly the same strategy. A series LLC structure can segregate portfolios, mandates, investor groups or risk exposures even when they share manager and administrative infrastructure. Public Form D data do not explain why Series B, C, D and E exist separately, whether each represents a different quantitative model, risk budget, geography, investor class or portfolio sleeve, or whether any assets are cross-held. Those answers require the operating agreement, offering memorandum and series supplements rather than the top-level SEC filing.
THE PUBLIC ALPHA PROSPERITY BRAND POINTS TO QUANTITATIVE AND AI-DRIVEN INVESTING
The official Alpha Prosperity Fund SPC website describes the wider organization as a group of quantitative investment funds using advanced AI systems, mathematical methods and statistical models to design and execute systematic investment strategies. Access to the website is limited to investors and invitation-based applicants, so public strategy disclosure is relatively narrow. The site does, however, establish that the Alpha Prosperity brand publicly positions itself as a quantitative and systematic investment platform rather than as a traditional discretionary stock-picking fund.
Independent public materials also identify Alon Tal as founder and owner of the Alpha Prosperity Funds group. An executive-education profile at Lahav describes Tal as founder and owner of the international Alpha Prosperity investment-fund group and says the organization uses advanced financial-engineering tools. That evidence strengthens the connection between the Alon Tal who signs the SEC series filings and the broader Alpha Prosperity brand, although investors should still distinguish group-level descriptions from the exact mandate of Series B.
PUBLIC TRANSACTION EVIDENCE SHOWS THE WIDER ALPHA PROSPERITY PLATFORM MAKES DIRECT INVESTMENTS
A particularly useful external evidence trail appears in SEC filings by Orgenesis Inc. In 2025, Alpha Prosperity Fund SPC, acting for Segregated Portfolio P, entered into a $1 million convertible loan agreement with Theracell Laboratories and also contemplated a credit facility of up to $10 million. Orgenesis proxy materials later disclosed substantial potential share ownership associated with Alpha Prosperity Fund SPC segregated portfolios G and P. These are not investments that can automatically be attributed to Alpha Prosperity US Fund Series B, but they prove that the broader Alpha Prosperity structure is capable of making direct and structured private investments in addition to whatever quantitative strategies are described on its website.
That distinction is critical. FilingDossier does not infer that Series B owns Orgenesis, Theracell or any other specific security simply because another Alpha Prosperity segregated portfolio appears in a public transaction. The correct conclusion is narrower: there is independently verifiable deal activity elsewhere in the Alpha Prosperity fund complex, demonstrating that the platform extends beyond a marketing-only website. Series B's actual portfolio remains undisclosed in Form D.
THE $2.5 MILLION FIGURE IS HISTORICAL SERIES-B CAPITAL, NOT PLATFORM AUM
The Series B filing history shows a $2.5 million amount sold in the 2024 filing, while the 2025 and 2026 filings are amendments to the continuing indefinite offering rather than fresh $2.5 million standalone raises each year. Researchers should therefore not add $2.5 million three times simply because there are three annual filings. The correct interpretation is that Series B entered SEC records in 2024 with $2.5 million reported sold and has since remained within an indefinite offering subject to annual amendment requirements.
The Form D also states that the Investment Manager receives customary management fees. That wording confirms that zero or blank sales-commission fields do not mean investors face no costs. Actual management fee, incentive fee, high-water mark, performance allocation, administrator expenses, redemption charges and other fund expenses are not quantified in the public notice. Investors need the offering documents to establish the complete fee stack.
MANAGER AND FUND EXISTENCE ARE VERIFIABLE; STRATEGY-LEVEL TRANSPARENCY IS LIMITED
Alpha Prosperity Series B has a much stronger legal and managerial verification trail than a completely anonymous offshore fund. The SEC records identify the Delaware issuer, Cayman operating address, Swiss investment manager, Israeli advisory/promoter entity and repeated authorized signer. Swiss corporate data independently confirm Alternative Investment Solutions SA at the same Geneva address, while Alpha Prosperity's official site and Alon Tal's independent professional biography support the wider brand identity. Multiple related series and separate Alpha Prosperity Fund SPC transactions reinforce that this is a functioning cross-border investment organization rather than a single dormant filing.
What remains missing is exactly what matters most to an investor: Series B's actual portfolio, historical net return, volatility, maximum drawdown, leverage, derivatives exposure, counterparties, prime brokers, custodian, administrator, auditor, liquidity terms and model-governance controls. The public website's references to AI and systematic investing provide useful context but are not enough to assess model risk or performance. Investors should ask for audited statements and series-specific investment materials before assuming the broader Alpha Prosperity marketing language applies identically to Series B.
KEY FINDINGS Alpha Prosperity US Fund, LLC - Series B is a Delaware LLC formed in 2021. Its principal place of business is in Grand Cayman. The latest Form D/A was filed September 11, 2026. The offering relies on Rule 506(b). The fund uses an indefinite offering structure. Series B previously reported $2.5 million sold. The investment manager is Alternative Investment Solutions SA in Geneva. Tal Alpha Yizum Vekidum Asakim (2003) LTD in Tel Aviv is identified as an adviser/promoter. Alon Tal signs the filings as Authorized Person. Alternative Investment Solutions SA is independently identifiable as an active Swiss fund-management/financial-services company. Series C, Series D and Series E use materially similar legal and operating infrastructure. The Alpha Prosperity Fund SPC website describes the wider group as quantitative and AI-driven. Independent professional materials identify Alon Tal as founder and owner of the Alpha Prosperity Funds group. Separate SEC transaction documents show Alpha Prosperity Fund SPC participating in structured private investments. Those other investments should not be attributed automatically to Series B. The $2.5 million Series B figure should not be confused with platform-wide AUM or multiplied across annual amendments. The Form D states that the investment manager receives customary management fees. Series B portfolio holdings and performance remain undisclosed in Form D.
SERIES FAMILY EVIDENCE Series B CIK: 0001863632 Formed: 2021 Initial SEC filing: September 2024 Reported sold: $2,500,000 2025 amendment: Confirmed 2026 amendment: September 11, 2026 Offering: Indefinite Exemption: Rule 506(b)
Series C CIK: 0001863888 Formed: 2021 SEC history begins: 2021 Manager/adviser structure: Alternative Investment Solutions SA / Tal Alpha Signer: Alon Tal
Series D CIK: 0002027956 Formed: 2021 SEC filings: 2024, 2025, 2026 Offering: Indefinite Amount sold publicly reported in latest historical filing data: $0 Manager/adviser structure: Same core entities
Series E CIK: 0002021404 Formed: 2021 Initial filing: May 2024 2025 amendment: Confirmed Manager/adviser structure: Same core entities Signer: Alon Tal
WEBSITE / ENTITY PENETRATION Official broader platform: Alpha Prosperity Fund SPC Official domain: alpha-spc.com Public strategy description: Quantitative investment funds using AI, mathematical and statistical systems Investor access: Invitation / investor-only Alon Tal founder relationship: Independently supported Series B legal entity: Confirmed Series B CIK: 0001863632 Grand Cayman Mourant address: Confirmed Alternative Investment Solutions SA relationship: Confirmed directly in Form D Alternative Investment Solutions SA Geneva registration: Confirmed Alternative Investment Solutions SA address match: Confirmed Tal Alpha relationship: Confirmed directly in Form D Alon Tal signer relationship: Confirmed Series C-E related structure: Confirmed Specific Series B portfolio: Not disclosed Specific quantitative model: Not disclosed Use of AI within Series B specifically: Not proven by Form D Current Series B NAV: Not disclosed Current Series B AUM: Not disclosed Auditor: Not established through Form D Administrator: Not clearly established beyond Cayman governance address Custodian: Not disclosed Prime broker: Not disclosed Counterparties: Not disclosed Performance history: Not publicly verified
PUBLIC PLATFORM TRANSACTION EVIDENCE Alpha Prosperity Fund SPC - Segregated Portfolio P entered a $1 million convertible loan with Theracell Laboratories in 2025. The same agreement contemplated a facility of up to $10 million. Orgenesis filings later disclosed substantial potential share ownership associated with Alpha Prosperity Fund SPC segregated portfolios. These transactions verify broader Alpha Prosperity investment activity. They do not establish that Alpha Prosperity US Fund Series B participated in those transactions.
CORE INVESTOR QUESTIONS What is the exact mandate of Series B How does Series B differ from Series C, D and E Does Series B run a quantitative market-neutral, directional or multi-asset strategy Which markets and instruments are permitted Does the strategy trade equities, futures, options, FX or digital assets How is AI actually used in the investment process Which decisions remain human-controlled What leverage limits apply What gross and net exposure limits apply Who is the prime broker Who holds custody of fund assets Who calculates NAV Who independently verifies valuations Who audits the series What management fee applies What performance fee applies Is there a high-water mark What redemption frequency applies What lock-up or notice period applies Are gates or suspension rights permitted What is current Series B NAV What is verified annual performance since inception What is maximum drawdown How does live performance compare with backtests How are model changes approved and logged What happens if market conditions invalidate a model How are conflicts allocated between Series B, C, D and E
CORE RISKS Quantitative-model risk AI model overfitting Backtest versus live-performance divergence Leverage risk Derivative and counterparty risk Cross-border regulatory complexity Cayman operational structure Swiss-Israeli management split Series allocation conflicts Limited public portfolio transparency Limited public performance transparency Valuation and NAV-control risk Liquidity mismatch Key-person dependence Technology and data-quality risk Risk of assuming group-level marketing applies directly to Series B
SEC SNAPSHOT Issuer: Alpha Prosperity US Fund, LLC - Series B CIK: 0001863632 Latest form: D/A Filed: September 11, 2026 Formation: Delaware, 2021 Principal place of business: Grand Cayman, Cayman Islands Phone: 345-949-4123 Industry: Pooled Investment Fund Security: Equity / Pooled Investment Fund Interests Exemption: Rule 506(b) Investment Company Act exclusion: Section 3(c)(1) Offering amount: Indefinite Historical amount sold: $2,500,000 Investment manager: Alternative Investment Solutions SA Investment adviser / promoter: Tal Alpha Yizum Vekidum Asakim (2003) LTD Authorized signer: Alon Tal Manager fees: Customary management fees disclosed Sales commissions: No amount disclosed Finder's fees: No amount disclosed
PRIMARY EVIDENCE REVIEWED SEC EDGAR — Alpha Prosperity US Fund, LLC - Series B Form D and amendments SEC EDGAR — Alpha Prosperity US Fund Series C, D and E filings Swiss commercial-registry-derived records — Alternative Investment Solutions SA Alpha Prosperity Fund SPC — official website Lahav Executive Education — Alon Tal professional biography SEC-filed Orgenesis / Theracell transaction documents involving Alpha Prosperity Fund SPC
IMPORTANT FORM D NOTICE Form D is a notice of an exempt securities offering. Filing with the SEC does not mean the SEC has approved, endorsed, audited or verified Alpha Prosperity US Fund, Alpha Prosperity Fund SPC, Alternative Investment Solutions SA, Tal Alpha, Alon Tal, any quantitative model, any AI system, any portfolio holding or any expected return. Series B's underlying portfolio, current NAV, service providers and performance should be independently verified from the series-specific offering memorandum, audited financial statements and investor reports.