INDEPENDENT VERDICT
LuminArx Opportunistic Alternative Solutions Onshore Fund LP is one of the stronger manager-verification cases in this A-list because the fund can be followed through several independent regulatory layers rather than only through a Form D. The Delaware partnership was formed in 2023 and its latest publicly available amendment reports $172,316,000 sold to 27 investors, an indefinite offering, a September 12, 2023 first sale, Rule 506(b) and Investment Company Act Section 3(c)(7). LuminArx Capital Fund GP LP is identified as general partner, while co-founders Min Htoo and Gideon Berger are disclosed through the general-partner control chain. The issuer uses the same 712 Fifth Avenue, 23rd Floor New York address as LuminArx Capital Management LP, which is independently registered with the SEC under CRD 327065 and file number 801-128287. This alignment among fund, GP, founders, adviser, address and regulatory identifiers creates a substantially stronger identity chain than is available for many newly formed private funds.
The most important story is that the Opportunistic Alternative Solutions vehicle sits inside a rapidly expanded institutional capital-solutions platform rather than functioning as an isolated hedge fund. LuminArx describes its strategy as providing flexible and strategic capital across complex situations while emphasizing downside protection, upside participation and low correlation to traditional markets. That description is supported by visible transactions rather than only marketing language. In 2026 LuminArx announced a partnership with Bridge designed to provide up to $500 million of financing to suppliers serving major U.S. retailers, a $1 billion aviation lending platform with SkyWorks Holdings, and a $140 million bespoke liquidity transaction. In 2025 the firm participated in a $210 million preferred-equity investment in Axonic Insurance and an aircraft transaction involving three Airbus A330-300 aircraft, while earlier transactions included financing for AI infrastructure company Vultr and the Cinergy private-lending platform formed with Citi. The pattern is consistent with a manager operating across private credit, structured equity, asset-backed finance, liquidity solutions and special situations rather than following a narrow long/short equity mandate.
THE FUND FAMILY IS MORE COMPLEX THAN THE OAS NAME SUGGESTS
The LuminArx structure includes separate onshore, offshore and holdings vehicles that should not be collapsed into one legal fund. LuminArx Opportunistic Alternative Solutions Offshore Fund LP was organized in the Cayman Islands in 2023 under CIK 0001991601 and SEC file number 021-491725. Its original Form D also used Rule 506(b), Section 3(c)(7), equity and pooled investment fund interests, and the same LuminArx Capital Fund GP LP control structure. Form ADV disclosures additionally identify LuminArx Opportunistic Alternative Solutions Holdings I Fund LP and Holdings II Fund LP as private funds within the adviser's broader platform. These structures likely serve different investor, tax, portfolio-holding or transaction purposes, but the public filings do not support simply aggregating their Form D sales figures into a single "fund size." Investors researching the strategy should therefore distinguish subscriptions into the onshore partnership from capital held through offshore and holdings entities.
That distinction becomes particularly important because independent SEC filings show actual portfolio exposure held by related LuminArx entities. Public-company registration statements identify LuminArx Opportunistic Alternative Solutions Holdings II Fund LP and LuminArx Pavo Holdings II LP as holders of securities and expressly state that LuminArx Capital Fund GP LP is their sole general partner, with Min Htoo and Gideon Berger ultimately exercising shared voting and investment control. Recent filings show the Holdings II vehicle with positions including common shares and convertible-note exposure in publicly reporting issuers. Separately, a registered investment company disclosed a position in LuminArx Opportunistic Alternative Solutions Offshore Fund with an approximately $22.7 million cost and roughly $24.5 million reported value in one 2026 portfolio filing, while another later filing reported an approximately $30.4 million cost and $33.0 million value. Those values belong to the reporting investor's position in the offshore fund and should not be represented as the offshore fund's total NAV, but they provide unusually useful third-party confirmation that institutional capital is actually invested in the vehicle.
MANAGER DEPTH AND REGULATORY SCALE
LuminArx Capital Management was launched in 2023 by Gideon Berger and Min Htoo, both of whom previously held senior investment roles at Blackstone Alternative Asset Management. Berger served as co-CIO of BAAM and chaired its Investment Committee; LuminArx states that BAAM client assets grew from roughly $1 billion to approximately $80 billion during his tenure. Htoo was also a BAAM co-CIO and previously founded Anandar Capital Management, worked as a partner and senior portfolio manager at Magnetar Capital, managed capital at Citadel and earlier worked at Och-Ziff and Morgan Stanley. Other senior professionals include investment staff with backgrounds at Blackstone, Barclays, Deutsche Bank, J. Goldman, Tourbillon, Nomura and other institutional platforms. This does not guarantee investment outcomes, but it provides a documented institutional operating history that is substantially deeper than the three-year age of the LuminArx legal entity itself.
The regulatory scale has also grown quickly. Public Form ADV data now place LuminArx Capital Management at approximately $4.5 billion in regulatory assets under management, with roughly 27 employees and approximately 35 clients reported in recent adviser data. That figure is firm-level regulatory AUM and must not be presented as the NAV of the Opportunistic Alternative Solutions Onshore Fund. LuminArx also became a Form 13F reporting institutional investment manager under CIK 0001992915 and Form 13F file number 028-26488. Its June 30, 2026 13F filing provides another independent signal that the firm manages reportable listed securities in addition to private and structured investments. As with every 13F, however, the filing captures only specified reportable securities and does not show the complete private-credit book, shorts, many derivatives, non-U.S. instruments, cash, liabilities or the allocation of positions among specific LuminArx funds.
DISTRIBUTION STRUCTURE AND THE $1 MINIMUM NEED CONTEXT
The latest Onshore Form D lists Rockefeller Financial LLC, CRD 291361, as a sales-compensation recipient and authorizes solicitation across all U.S. states. The filing reports approximately $519,150 in sales commissions and no finder fees. This is materially different from private funds whose Form D reports no external distribution recipient and provides another identifiable regulated organization in the capital-raising chain. The reported $1 minimum investment is also unusual, but it should not be interpreted as meaning the fund accepts $1 retail subscriptions. The vehicle relies on Section 3(c)(7), a structure generally associated with qualified purchasers, and access is governed by the partnership's subscription documents and investor-eligibility standards rather than the numerical minimum field alone. The combination of 27 investors and $172.316 million sold implies that the actual capital relationships are institutional or high-value in nature even though Form D technically reports a $1 minimum.
PUBLIC TRANSACTIONS SHOW REAL CAPITAL DEPLOYMENT, BUT NOT FUND-SPECIFIC RETURNS
LuminArx's public transaction record is unusually useful for understanding what "opportunistic alternative solutions" means in practice. The firm's 2024 partnership with Citi established Cinergy, a private-lending vehicle intended to provide senior secured loans to middle-market companies. In aviation, LuminArx has participated in aircraft acquisitions and in January 2026 announced a $1 billion lending platform with SkyWorks Holdings. Its 2025 Axonic Insurance investment involved preferred capital alongside Deutsche Bank, while its 2024 Vultr financing connected the firm with AI infrastructure. In March 2026, LuminArx appeared among participants in Sierra Space's $550 million Series C financing, and in August 2026 it announced the Bridge supplier-financing partnership. These transactions demonstrate a broad capital-solutions toolkit spanning debt, preferred equity, structured financing, asset-backed exposure and growth capital.
What they do not establish is the performance of this specific onshore LP. Public press releases generally identify LuminArx or a related vehicle but do not always reveal which fund supplied every dollar, the acquisition price of each exposure, realized proceeds, hedging structure or attribution to the OAS Onshore Fund. Likewise, public securities filings naming Holdings II or Pavo are valuable asset-level evidence but cannot be assumed to represent the complete Onshore Fund portfolio. The correct analytical approach is therefore to use these transactions to verify strategy and operating activity while reserving fund-performance conclusions for audited statements, investor reports and the partnership's own performance records.
FINAL ASSESSMENT
LuminArx Opportunistic Alternative Solutions has a particularly strong external evidence chain: a clearly identified onshore Form D issuer, Cayman offshore counterpart, multiple holdings entities, an SEC-registered investment adviser, institutional founders, a rapidly expanded multi-billion-dollar regulatory AUM base, a Form 13F reporting history, identifiable distribution infrastructure and numerous publicly documented capital deployments. The evidence supports LuminArx's description of itself as a capital-solutions manager rather than merely a newly created fund brand. It also shows direct exposure through related entities to private lending, aviation, insurance, AI infrastructure, structured securities and public-company investments.
The remaining diligence questions are mostly economic rather than identity-related. Public sources do not provide a complete current Onshore Fund NAV, audited gross and net performance series, management fee, incentive fee, hurdle, high-water mark, leverage limits, redemption schedule, gates, side-pocket policy, derivatives exposure or full counterparty map. The $172.316 million Form D amount sold is historical securities-offering data and cannot substitute for NAV; the approximately $4.5 billion Form ADV figure is firm-wide regulatory AUM and cannot substitute for fund size; and public 13F or Holdings II positions cannot substitute for the onshore partnership's complete portfolio. Keeping those three measurements separate is essential to an accurate review.
SEC SNAPSHOT
Issuer: LuminArx Opportunistic Alternative Solutions Onshore Fund LP CIK: 0001991606 SEC File Number: 021-491727 Entity Type: Delaware Limited Partnership Formation Year: 2023 Principal Address: 712 Fifth Avenue, 23rd Floor, New York, New York 10019 Industry: Pooled Investment Fund / Hedge Fund Federal Exemption: Rule 506(b) Investment Company Act Exclusion: Section 3(c)(7) Date of First Sale: September 12, 2023 Offering Duration: More than one year Security Type: Equity / Pooled Investment Fund Interests Offering Amount: Indefinite Latest Public Amount Sold Reviewed: $172,316,000 Latest Public Investor Count Reviewed: 27 Minimum Investment Reported: $1 Aggregate NAV: Declined Sales Compensation Recipient: Rockefeller Financial LLC Rockefeller Financial CRD: 291361 Reported Sales Commissions: $519,150 Reported Finder Fees: $0 General Partner: LuminArx Capital Fund GP LP GP of General Partner: LuminArx Capital GP LLC Ultimate Control Persons: Gideon Berger and Min Htoo Investment Manager: LuminArx Capital Management LP Manager CRD: 327065 Manager SEC Number: 801-128287 Manager CIK: 0001992915 13F File Number: 028-26488 Official Website: luminarx.com Official Email: [email protected] Firm Regulatory AUM: Approximately $4.5 billion reported in recent Form ADV-derived data Exact Onshore Fund NAV: Not publicly disclosed in Form D Exact Fund-Level Audited Return Series: Not identified in public Form D materials Exact Current Fee Schedule: Not disclosed in Form D
RELATED VEHICLE MAP
LuminArx Opportunistic Alternative Solutions Onshore Fund LP Jurisdiction: Delaware CIK: 0001991606 SEC File Number: 021-491727 Purpose: U.S. onshore pooled hedge-fund vehicle Latest reviewed amount sold: $172.316 million Investors: 27
LuminArx Opportunistic Alternative Solutions Offshore Fund LP Jurisdiction: Cayman Islands CIK: 0001991601 SEC File Number: 021-491725 Formation: 2023 Rule: 506(b) Investment Company Act Exclusion: 3(c)(7) General Partner: LuminArx Capital Fund GP LP
LuminArx Opportunistic Alternative Solutions Holdings I Fund LP Jurisdiction: Delaware Private Fund ID: 805-1908048004 General Partner: LuminArx Capital Fund GP LP Appears in Form ADV private-fund disclosures
LuminArx Opportunistic Alternative Solutions Holdings II Fund LP General Partner: LuminArx Capital Fund GP LP Controlled through Min Htoo and Gideon Berger Appears directly as a securities holder in public-company SEC filings
LuminArx Pavo Holdings II LP Related LuminArx investment vehicle Controlled through the same GP structure Appears alongside OAS Holdings II in public-company ownership filings
WEBSITE / ENTITY PENETRATION
Official LuminArx website verified: Yes Onshore legal fund matched to SEC: Yes Offshore legal fund matched to SEC: Yes General partner matched: Yes Gideon Berger matched to fund and adviser records: Yes Min Htoo matched to fund and adviser records: Yes SEC investment adviser registration matched: Yes CRD matched: Yes — 327065 SEC adviser file matched: Yes — 801-128287 Manager CIK matched: Yes — 0001992915 Form 13F history matched: Yes Firm headquarters matched across filings and website: Yes Related holdings vehicles identified: Yes Public transaction record identified: Yes Third-party institutional ownership of Offshore Fund interest identified: Yes Fund-level audited NAV publicly identified: No Complete fund portfolio publicly identified: No Exact fund-level leverage publicly identified: No Exact current fee schedule publicly identified: No
MANAGER BACKGROUND
Gideon Berger: Co-Founder and Chief Executive Officer of LuminArx Capital Management. Former Senior Managing Director and Co-Chief Investment Officer of Blackstone Alternative Asset Management. Former Chairman of BAAM Investment Committee. Background includes technology entrepreneurship and advanced academic work in mathematics, physics and computer science.
Min Htoo: Co-Founder and Chief Investment Officer. Former Senior Managing Director and Co-Chief Investment Officer of Blackstone Alternative Asset Management. Former Founder, CEO and CIO of Anandar Capital Management. Former partner and senior portfolio manager at Magnetar Capital. Earlier experience at Citadel, Och-Ziff and Morgan Stanley.
Other Investment Team Evidence: LuminArx personnel include professionals with backgrounds across Blackstone, Barclays, Deutsche Bank, J. Goldman, Tourbillon Capital, Nomura and other institutional investment firms.
SELECT PUBLIC CAPITAL-DEPLOYMENT EVIDENCE
2024: Citi and LuminArx launched Cinergy, a strategic private lending platform.
2024: LuminArx participated in financing for Vultr alongside AMD Ventures at a reported $3.5 billion company valuation.
2025: Phoenix Aviation Capital, AIP Capital and LuminArx announced the acquisition of three Airbus A330-300 aircraft.
2025: LuminArx and Deutsche Bank provided a $210 million preferred-equity investment to Axonic Insurance.
2026: LuminArx and SkyWorks Holdings announced a $1 billion aviation lending platform.
2026: LuminArx announced a $140 million bespoke liquidity transaction.
2026: LuminArx appeared in Sierra Space's $550 million Series C financing.
2026: LuminArx and Bridge announced a partnership targeting up to $500 million of supplier financing connected to major U.S. retailers.
These transactions verify the breadth of the manager's investment activity but should not automatically be attributed entirely to the Onshore Fund.
CORE RISKS
Strategy Complexity Risk: Capital-solutions strategies may combine private credit, preferred securities, convertibles, structured equity, asset-backed finance, derivatives or bespoke contractual protections that are difficult to value and compare.
Illiquidity Risk: Private loans, aircraft financings, private-company securities and structured transactions may have limited secondary markets.
Leverage Risk: The Form D does not disclose leverage employed at either fund or transaction level.
Counterparty Risk: Bespoke financings may depend heavily on borrower, issuer, collateral, bank and derivative counterparties.
Valuation Risk: Private and structured assets often depend on manager valuation methodologies rather than continuous quoted market prices.
Fund-Family Risk: Onshore, offshore, Holdings I, Holdings II, Pavo and other LuminArx entities serve different legal purposes and should not be combined when calculating NAV, subscriptions or performance.
AUM Interpretation Risk: LuminArx's approximately $4.5 billion regulatory AUM is firm-wide and is not the size of this specific fund.
Form D Interpretation Risk: The $172.316 million amount sold represents securities sold under the offering and should not be treated as current NAV or investment performance.
Minimum-Investment Interpretation Risk: The reported $1 minimum does not establish retail accessibility because eligibility is governed by the fund's Section 3(c)(7) structure and subscription documents.
13F Coverage Risk: Public 13F filings omit many private, short, derivative, foreign and non-reportable exposures.
Fee Transparency Risk: Form D does not state the complete management-fee, incentive-fee, hurdle, high-water-mark or fund-expense structure.
Liquidity-Term Risk: Redemption dates, notice requirements, gates, suspensions and side pockets are not disclosed in Form D.
CORE INVESTOR QUESTIONS
Investors should request the latest private placement memorandum and partnership agreement; confirm whether subscriptions enter the Onshore Fund directly or through another feeder or parallel vehicle; obtain current NAV, gross and net returns, drawdowns and audited statements; identify the management fee, incentive allocation, hurdle and high-water mark; establish leverage limits, derivatives authority and portfolio-concentration restrictions; determine redemption frequency, notice periods, gates and side-pocket provisions; obtain the current administrator, auditor, custodian and prime-broker list; request a breakdown of private credit, structured equity, listed securities and other exposure; determine how Holdings I, Holdings II, Pavo and other transaction vehicles feed into the OAS strategy; and reconcile the fund's own capital with LuminArx's much larger firm-level regulatory AUM.
PRIMARY EVIDENCE REVIEWED
SEC EDGAR — LuminArx Opportunistic Alternative Solutions Onshore Fund LP Form D and amendments SEC EDGAR — LuminArx Opportunistic Alternative Solutions Offshore Fund LP Form D and amendments SEC Investment Adviser Public Disclosure — LuminArx Capital Management LP, CRD 327065 / SEC 801-128287 SEC Form ADV — LuminArx private-fund and ownership disclosures SEC Form 13F — LuminArx Capital Management LP, CIK 0001992915 / 13F file 028-26488 SEC public-company registration statements naming LuminArx Opportunistic Alternative Solutions Holdings II Fund LP and LuminArx Pavo Holdings II LP Registered investment-company filings identifying holdings in LuminArx Opportunistic Alternative Solutions Offshore Fund LP LuminArx official website — manager strategy, team biographies and transaction announcements Public transaction announcements involving Citi, SkyWorks Holdings, Bridge, Sierra Space, Vultr, Axonic Insurance and aviation investments
IMPORTANT FORM D NOTICE
Form D is a notice filing for an exempt securities offering. It is not an SEC approval, certification, recommendation or finding that an investment is safe or suitable. The SEC states that it has not necessarily reviewed Form D information and has not determined whether it is accurate or complete. FilingDossier independently compares public regulatory, issuer and third-party records and does not treat Form D fundraising figures, Form ADV regulatory AUM or Form 13F securities values as interchangeable measurements.