PRIVILEGED & CONFIDENTIAL ATTORNEY-CLIENT PRIVILEGED ATTORNEY WORK PRODUCT
CALDERWOOD & HARKNESS LLP 7 Times Square New York, NY 10036
MEMORANDUM
Prepared By: Ryan Kowalski (Lead Associate, M&A) and Megan Chu (Working Associate, M&A), under the supervision of James Prentice (Responsible Partner, M&A)
Tax Review By: Sylvia Hartwell (Specialist Partner, Tax) — for ERISA, qualified plan, and international benefit plan tax matters
Local Counsel Input:
Swiss matters: Breitfeld Hess & Partner AG (Dr. Lukas Breitfeld), Talstrasse 62, 8001 Zürich, Switzerland
German matters: Wendt Schäfer Rechtsanwälte PartG mbB (Dr. Katarina Wendt), Maximilianstrasse 35, 80539 Munich, Germany
Singapore matters: Tan Liang & Associates LLP (Kelvin Tan), 80 Raffles Place, #32-01, Singapore 048624
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I. Executive Summary
This memorandum summarizes the findings of our employment and employee benefits due diligence conducted in connection with the proposed acquisition by Ardent Capital Partners III LP ("Ardent Capital" or "Buyer") of Luminex Systems Holdings Inc. ("Luminex Holdings," the "Company," or the "Target") for an aggregate enterprise value of $2,800,000,000 (the "Transaction"). The Transaction is structured as a reverse triangular merger under Delaware law, pursuant to the Agreement and Plan of Merger dated March 24, 2025 (the "Merger Agreement"), whereby Ardent Apex Merger Sub Inc. ("Merger Sub"), a newly formed wholly owned subsidiary of Ardent Apex Holdings Inc. ("Apex Holdings"), will merge with and into Luminex Systems Holdings Inc., with Luminex Holdings surviving the merger as a wholly owned subsidiary of Apex Holdings (the "Merger").
The Transaction was signed on March 24, 2025. This memorandum has been prepared during the post-signing, pre-closing due diligence and integration planning period. The estimated closing is targeted for the third quarter of 2025, presently expected in July or August 2025, subject to satisfaction of customary conditions, including receipt of antitrust and regulatory approvals and completion of the pre-closing covenants set forth in the Merger Agreement.
Scope of Review. Our review covers employment arrangements, employee benefit plans (both qualified and nonqualified), equity incentive plans, collective bargaining and works council matters, regulatory compliance, change of control provisions, and related matters across all Luminex operating jurisdictions. The scope encompasses the following Target entities:
• Luminex Systems Holdings Inc. — Delaware corporation; U.S. holding company; principal offices at 2100 Reston Gateway Drive, Suite 800, Reston, Virginia 20191.
• Luminex Systems Inc. — Delaware corporation; U.S. operating subsidiary; same principal office address as Holdings; approximately 1,650 U.S. employees.
• Luminex Systems AG — Swiss stock corporation (Aktiengesellschaft); registered offices at Bahnhofstrasse 71, 8001 Zürich, Switzerland; Commercial Register No. CHE-284.391.057.
• Luminex Systems GmbH — German limited liability company (Gesellschaft mit beschränkter Haftung); registered offices at Leopoldstrasse 120, 80802 Munich, Germany; Commercial Register No. HRB 247891 (Amtsgericht München).
• Luminex Systems UK Ltd. — Private limited company, incorporated in England and Wales; Company No. 12847362; registered office at 14 Broadwick Street, London W1F 8HN, United Kingdom.
• Luminex Systems Pte. Ltd. — Singapore private limited company; Unique Entity Number (UEN) 201924781K; registered office at 8 Marina Boulevard, #36-01, Singapore 018981.
Global Headcount. As of the date of this memorandum, the Luminex group employs approximately 4,200 persons worldwide, distributed across the five operating entities listed above.
Key Findings. Our review has identified several material issues and action items requiring attention before or concurrently with closing, which are summarized immediately below and discussed in detail throughout this memorandum:
1. Change of Control Severance Obligations. The Merger constitutes a "change of control" under substantially all reviewed employment agreements, equity incentive plans, and related arrangements. The aggregate estimated change of control severance liability is subject to final quantification but is expected to be material, particularly with respect to the named executive officers and other senior management.
2. Section 280G Parachute Payment Exposure. Certain "disqualified individuals" may receive "excess parachute payments" within the meaning of Section 280G of the Internal Revenue Code in connection with the Merger. Because Luminex Holdings is a privately held company, a Section 280G shareholder vote under the private-company exemption of Section 280G(b)(5)(B) may be available to exempt such payments. Coordination with the Target's counsel, Caldwell, Raines & Sheppard LLP, is required.
3. Section 409A Compliance. Deferred compensation plan provisions must be confirmed compliant with change of control rules under Section 409A of the Internal Revenue Code.
4. German Works Council. The existence and consultation rights of any Betriebsrat (works council) at Veltronix GmbH must be confirmed and, if applicable, satisfied in advance of or concurrently with closing.
5. Swiss Pension Fund. The funded status and any underfunding of the Second Pillar (BVG) occupational pension plan maintained by Luminex Systems AG require confirmation.
6. Equity Plan Treatment. All outstanding stock options and restricted stock units will be cancelled and converted into the right to receive per-share merger consideration of $20.00 (less exercise price in the case of options), with certain management participants contributing rollover equity into Apex Holdings pursuant to the Rollover Agreement in an aggregate amount of $405,020,000.
7. Interim Operating Covenant Monitoring. Ongoing compliance monitoring is required for employment-related negative covenants, including the prohibition on new hires with base salary exceeding $250,000 and material changes to compensation or benefit plans without Buyer consent.
Each of these findings, together with additional matters identified in our review, is discussed in the sections that follow.
II. Global Workforce Overview
A. Headcount by Entity and Jurisdiction
United States — Luminex Systems Inc.
Luminex Systems Inc., the principal U.S. operating subsidiary, employs approximately 1,650 persons at its headquarters in Reston, Virginia, with additional employees distributed across satellite offices in San Francisco, California; Austin, Texas; and Boston, Massachusetts. Luminex Systems Inc. generated U.S. revenue of approximately $194,800,000 for fiscal year 2024, representing approximately 40% of the Company's consolidated global revenue of approximately $487,000,000.
The U.S. workforce is distributed across the following functional areas, based on headcount data provided in the virtual data room as of January 31, 2025:
With respect to employee classifications, substantially all U.S. employees are classified as full-time. A review of the data room disclosures indicates that approximately 1,420 U.S. employees are classified as exempt under the Fair Labor Standards Act ("FLSA"), with the remaining approximately 230 employees classified as non-exempt. Approximately 35 part-time employees were identified, primarily in administrative and support functions. We note that proper classification of exempt versus non-exempt employees under the FLSA and applicable state wage-and-hour laws is a common area of potential exposure and recommend confirmation of classification accuracy for employees in borderline positions, particularly certain customer success and professional services roles.
In addition to employees, Luminex Systems Inc. engages approximately 80 to 100 independent contractors at any given time, primarily in software development, quality assurance, and IT infrastructure roles. We have reviewed a sample of independent contractor agreements and note that the classification of certain long-term contractors (particularly those who have been engaged for periods exceeding twelve months and who work exclusively for Luminex) should be evaluated for potential misclassification risk under IRS guidelines, applicable state laws (including California's ABC test under AB 5), and the U.S. Department of Labor's revised independent contractor rule effective March 11, 2024.
Switzerland — Luminex Systems AG
Luminex Systems AG serves as the European headquarters and the operational hub for the Company's corporate leadership, research and development, and European sales leadership functions. The entity is located at Bahnhofstrasse 71, 8001 Zürich, Switzerland, and is registered with the Zürich Commercial Register under number CHE-284.391.057.
Based on data room disclosures, Luminex Systems AG employs approximately 480 persons. The DACH region (Germany, Austria, and Switzerland combined) accounts for approximately 35% of the Company's consolidated revenue, or approximately $170,450,000 for fiscal year 2024, with the Swiss entity contributing a meaningful portion of that figure through its role as the corporate headquarters and primary intercompany licensor under the Company's transfer pricing structure.
The Swiss workforce is distributed across the following functions:
All employees of Luminex Systems AG are employed under individual employment contracts governed by Swiss law. There are no collective bargaining agreements applicable to Luminex Systems AG, and the Company has not entered into any binding general labor agreements (Gesamtarbeitsverträge) or standard labor agreements (Normalarbeitsverträge).
Germany — Luminex Systems GmbH
Luminex Systems GmbH operates from offices at Leopoldstrasse 120, 80802 Munich, Germany, and is registered with the Munich Commercial Register under HRB 247891. The German entity generated revenue of approximately €67,000,000 (approximately $72,360,000 at current exchange rates) for fiscal year 2024.
Luminex Systems GmbH employs approximately 620 persons, distributed as follows:
All German employees are employed under individual employment contracts governed by German law. As discussed in greater detail in Section VII below, the existence and status of a works council (Betriebsrat) at the Munich office is a matter requiring further confirmation.
United Kingdom — Luminex Systems UK Ltd.
Luminex Systems UK Ltd. operates from offices at 14 Broadwick Street, London W1F 8HN, and is registered with Companies House under Company No. 12847362. The UK and Nordics revenue segment represents approximately 15% of the Company's consolidated revenue, or approximately $73,050,000 for fiscal year 2024.
Based on data room disclosures, Luminex Systems UK Ltd. employs approximately 340 persons, primarily engaged in sales, customer success, and professional services functions for the UK and Northern European markets.
Singapore — Luminex Systems Pte. Ltd.
Luminex Systems Pte. Ltd. operates from offices at 8 Marina Boulevard, #36-01, Singapore 018981, and is registered with the Accounting and Corporate Regulatory Authority (ACRA) under UEN 201924781K. The APAC revenue segment represents approximately 10% of the Company's consolidated revenue, or approximately $48,700,000 for fiscal year 2024.
Luminex Systems Pte. Ltd. employs approximately 110 persons, serving as the Company's operational hub for the Asia-Pacific region.
We note that of the approximately 110 employees in Singapore, approximately 28 are foreign nationals employed under Employment Passes issued by the Ministry of Manpower ("MOM"), and approximately 7 hold S Passes. Work pass compliance is discussed further in Section IX below.
Contractor and Contingent Workforce
In addition to the approximately 4,200 direct employees across the five operating entities, the Luminex group engages an estimated 150 to 200 independent contractors and contingent workers globally at any given time. The largest concentrations are in the United States (approximately 80–100, as noted above), India (approximately 40–50, engaged through third-party staffing agencies for offshore development and QA functions), and the United Kingdom (approximately 15–20). We have reviewed a representative sample of contractor agreements in each jurisdiction and note potential misclassification risk in the U.S. and UK, which is discussed further in Sections IV and VIII, respectively.
B. Organizational Structure
The Luminex group operates under a centralized leadership structure headquartered at Luminex Systems AG in Zürich. The senior executive team consists of:
• Dr. Stefan Kessler — Chief Executive Officer. Dr. Kessler is employed by Luminex Systems AG and serves as the chief executive of the Luminex group globally. He is a Swiss national and has served as CEO since the Company's founding in 2019.
• Annelise Gruber — Chief Financial Officer. Ms. Gruber is employed by Luminex Systems AG and is responsible for the Company's global finance, accounting, tax, and treasury functions. She is a Swiss national and has served as CFO since 2020.
• Dr. Markus Vogt — Chief Technology Officer. Dr. Vogt is employed by Luminex Systems AG and leads the Company's global engineering and product development functions, with teams in Zürich, Munich, and Reston. He is a German national (resident in Switzerland) and has served as CTO since the Company's founding.
Additional members of the senior leadership team include the VP of Sales (U.S.), the VP of Sales (EMEA), the VP of Customer Success, and the General Counsel, each of whom is discussed in the context of their respective employment agreements in Section III.B below.
The Board of Directors of Luminex Systems Holdings Inc. consists of seven members: Roland Merz (Chairman; designee of Ridgeline Growth Equity Fund II LP), Dr. Stefan Kessler (CEO), two additional designees of Ridgeline Growth Equity Fund II LP, two designees of Meridian Venture Partners IV LP, and one independent director. The current capitalization reflects the following ownership structure:
III. Key Executive and Employee Agreements
A. Named Executive Employment Agreements
We have reviewed the employment agreements for each of the three named executive officers of the Company. All three named executives are employed by Luminex Systems AG, and their employment agreements are governed by Swiss law. The key terms of each agreement are summarized below.
Dr. Stefan Kessler — Chief Executive Officer
Employment Agreement. Dr. Kessler is party to an employment agreement with Luminex Systems AG dated September 1, 2019, as amended on March 15, 2021 and January 10, 2023 (the "Kessler Employment Agreement"). The Kessler Employment Agreement provides for his employment as Chief Executive Officer and managing director (Geschäftsführer) of the Luminex group, reporting to the Board of Directors of Luminex Systems Holdings Inc.
Compensation. Dr. Kessler's current base salary is CHF 850,000 per annum, with a target annual bonus of 100% of base salary (CHF 850,000), subject to achievement of corporate and individual performance objectives as determined by the Board. The bonus is payable 60% in cash and 40% in equity (restricted stock units), subject to the terms of the Company's equity incentive plan.
Equity Ownership. Dr. Kessler holds 8.5% of Luminex Holdings on a fully diluted basis, consisting of a combination of vested restricted stock, vested stock options, and restricted stock units. Based on 140,000,000 fully diluted shares at the per-share merger consideration of $20.00, Dr. Kessler's total equity consideration in the Merger is $238,000,000. Pursuant to the terms of the Rollover Agreement (discussed in Section X.B below), Dr. Kessler will contribute 60% of his equity consideration ($142,800,000) into Apex Holdings in the form of rollover equity, with the remaining 40% ($95,200,000) paid in cash at closing.
Change of Control Provisions. The Kessler Employment Agreement contains a change of control clause that defines a "change of control" to include (i) the acquisition by any person or group of more than 50% of the outstanding voting securities of the Company, (ii) a merger, consolidation, or similar transaction in which the Company's existing shareholders cease to own a majority of the outstanding voting securities of the surviving entity, or (iii) a sale of all or substantially all of the Company's assets. The reverse triangular Merger clearly satisfies the definition under clauses (i) and (ii).
Upon a change of control, the Kessler Employment Agreement provides for the following:
(a) Single-Trigger Equity Acceleration. 100% of Dr. Kessler's unvested equity awards (options, RSUs, and restricted stock) vest in full upon consummation of the change of control, without regard to whether Dr. Kessler's employment is terminated.
(b) Double-Trigger Severance. In the event that Dr. Kessler's employment is terminated by the Company without "cause" (as defined in the agreement) or by Dr. Kessler for "good reason" (as defined) within the 24-month period following a change of control, Dr. Kessler is entitled to receive (i) a lump-sum severance payment equal to 24 months of base salary (CHF 1,700,000), (ii) an amount equal to 2.0 times his target annual bonus (CHF 1,700,000), and (iii) continuation of health and welfare benefits for 24 months at the Company's expense.
(c) Notice Period. The contractual notice period for termination of Dr. Kessler's employment is 12 months, which may be served as garden leave at the Company's discretion.
Restrictive Covenants. The Kessler Employment Agreement contains the following restrictive covenants: (i) a non-competition covenant prohibiting Dr. Kessler from engaging in competitive activities for a period of 18 months following termination of employment, subject to payment of compensation during the restriction period as required under Swiss law (CO Art. 340 et seq.); (ii) a non-solicitation covenant prohibiting solicitation of the Company's employees, customers, and business partners for a period of 18 months following termination; and (iii) perpetual confidentiality obligations with respect to the Company's trade secrets and proprietary information.
Post-Closing Employment Agreement. A new post-closing employment agreement between Dr. Kessler and Luminex Systems AG (as a wholly owned indirect subsidiary of Apex Holdings) is currently being negotiated. The terms of the post-closing arrangement are set forth in a separate document (Employment Agreement — Dr. Stefan Kessler) and are not addressed in this memorandum.
Governing Law. The Kessler Employment Agreement is governed by Swiss law, with exclusive jurisdiction in the courts of Zürich.
Annelise Gruber — Chief Financial Officer
Employment Agreement. Ms. Gruber is party to an employment agreement with Luminex Systems AG dated February 15, 2020, as amended on March 15, 2021 (the "Gruber Employment Agreement"). The agreement provides for her employment as Chief Financial Officer, reporting to the CEO and the Board.
Compensation. Ms. Gruber's current base salary is CHF 625,000 per annum, with a target annual bonus of 75% of base salary (CHF 468,750), subject to achievement of corporate and individual performance objectives. The bonus is payable 60% in cash and 40% in equity.
Equity Ownership. Ms. Gruber holds 4.2% of Luminex Holdings on a fully diluted basis. Her total equity consideration in the Merger is $117,600,000 (4.2% × $2,800,000,000). Pursuant to the Rollover Agreement, Ms. Gruber will contribute 50% of her equity consideration ($58,800,000) into Apex Holdings as rollover equity, with the remaining 50% ($58,800,000) paid in cash at closing.
Change of Control Provisions. The Gruber Employment Agreement contains change of control provisions substantially similar to those in the Kessler Employment Agreement, including (a) single-trigger acceleration of 100% of unvested equity awards upon a change of control and (b) double-trigger severance consisting of (i) a lump-sum payment equal to 18 months of base salary (CHF 937,500), (ii) an amount equal to 1.5 times her target annual bonus (CHF 703,125), and (iii) continuation of health and welfare benefits for 18 months, in each case triggered upon a termination without cause or resignation for good reason within the 18-month period following a change of control.
Restrictive Covenants. Non-competition (12 months), non-solicitation (12 months), and perpetual confidentiality covenants are included, with compensation during the non-compete period as required under Swiss law.
Post-Closing Employment Agreement. A new post-closing employment agreement for Ms. Gruber is currently being negotiated, as set forth in a separate document (Employment Agreement — Annelise Gruber).
Governing Law. Swiss law, with exclusive jurisdiction in the courts of Zürich.
Dr. Markus Vogt — Chief Technology Officer
Employment Agreement. Dr. Vogt is party to an employment agreement with Luminex Systems AG dated September 1, 2019, as amended on March 15, 2021 (the "Vogt Employment Agreement"). The agreement provides for his employment as Chief Technology Officer, reporting to the CEO.
Compensation. Dr. Vogt's current base salary is CHF 600,000 per annum, with a target annual bonus of 75% of base salary (CHF 450,000). The bonus is payable on terms consistent with the other named executives.
Equity Ownership. Dr. Vogt holds 3.8% of Luminex Holdings on a fully diluted basis. His total equity consideration in the Merger is $106,400,000 (3.8% × $2,800,000,000). Pursuant to the Rollover Agreement, Dr. Vogt will contribute 55% of his equity consideration ($58,520,000) into Apex Holdings as rollover equity, with the remaining 45% ($47,880,000) paid in cash at closing.
Change of Control Provisions. The Vogt Employment Agreement contains change of control provisions substantially similar to the Kessler and Gruber agreements, including (a) single-trigger acceleration of 100% of unvested equity upon a change of control and (b) double-trigger severance consisting of (i) a lump-sum payment equal to 18 months of base salary, (ii) 1.5 times target annual bonus, and (iii) continuation of health and welfare benefits for 18 months, upon termination without cause or resignation for good reason within 18 months following a change of control.
Restrictive Covenants. Non-competition (12 months), non-solicitation (12 months), and perpetual confidentiality covenants, with compensation during the non-compete period under Swiss law. The Vogt Employment Agreement also includes a specific IP assignment and invention assignment clause that assigns to the Company all inventions, works of authorship, and intellectual property created by Dr. Vogt during his employment and within the scope of his duties. This provision is consistent with Swiss law requirements under CO Art. 332 regarding employer ownership of employee inventions.
Governing Law. Swiss law, with exclusive jurisdiction in the courts of Zürich.
B. Other Management and Key Employee Agreements
The aggregate management and employee equity ownership in Luminex Holdings is 28% on a fully diluted basis, representing total equity consideration of $784,000,000 in the Merger. The named executives (Kessler, Gruber, and Vogt) collectively hold 16.5% of the fully diluted equity, and the remaining 11.5% ($322,000,000 in total consideration) is held by approximately 85 other management and employee participants.
With respect to the other management and employee holders (excluding the three named executives), the rollover participation rate is approximately 45% on an aggregate basis, representing $144,900,000 in rollover equity to be contributed to Apex Holdings. The remaining approximately 55% ($177,100,000) will be paid in cash at closing.
The combined rollover and cash-out figures for all management and employee equity holders are as follows:
We have reviewed employment agreements or offer letters for all VP-level and above employees across each jurisdiction. A complete list of the agreements reviewed is set forth in Appendix A. Key observations with respect to other management and key employee agreements include:
(a) VP-Level Agreements (U.S.). Approximately 22 VP-level employees in the United States are party to employment agreements or enhanced offer letters that contain change of control provisions, typically providing for double-trigger severance of 12 months of base salary plus target bonus upon termination without cause or resignation for good reason within 12 months following a change of control.
(b) VP-Level Agreements (International). Approximately 8 VP-level employees in Switzerland, Germany, and the United Kingdom are party to employment agreements containing change of control provisions on terms similar to those described above, subject to the requirements and limitations of applicable local law.
(c) Retention Arrangements. Luminex management has disclosed that informal discussions regarding retention bonuses for certain key engineering and sales personnel have taken place, but no formal retention bonus agreements have been executed as of the date of this memorandum. We recommend that any retention arrangements be implemented in coordination with the Buyer and in compliance with the interim operating covenants of the Merger Agreement.
(d) At-Will Employment. U.S. employees below the VP level are generally employed on an at-will basis pursuant to standard offer letters that do not contain change of control provisions or guaranteed severance. Offer letters for U.S. employees include standard confidentiality, non-solicitation, and invention assignment provisions.
(e) Salary Threshold. We have identified 14 employees (across all jurisdictions) whose current base salary exceeds $250,000, which is the threshold above which new hires during the pre-closing period require Buyer consent under Section 5.1(b)(iv) of the Merger Agreement. A list of these employees is included in Appendix A.
C. Change of Control Severance Triggers
The Merger constitutes a "change of control" under substantially all of the Company's employment agreements, equity incentive plans, and related compensation arrangements. The reverse triangular merger structure, whereby Merger Sub merges with and into Luminex Holdings and the existing shareholders of Luminex Holdings cease to hold a majority of the outstanding voting securities of the surviving entity, satisfies the change of control definitions contained in each of the reviewed agreements.
We have classified the change of control severance provisions in the reviewed employment agreements according to whether they are "single trigger" or "double trigger" arrangements:
Single Trigger. Provisions that are triggered solely upon the consummation of the Merger, without regard to whether the employee's employment is subsequently terminated. Single-trigger provisions in the Luminex employment agreements are limited to equity acceleration clauses in the named executive employment agreements and in the equity incentive plan itself. All unvested equity awards held by the three named executives vest in full upon the closing of the Merger as a single-trigger matter.
Double Trigger. Provisions that require both (i) a change of control and (ii) a qualifying termination of employment (typically termination without cause or resignation for good reason) within a specified period following the change of control (ranging from 12 to 24 months depending on the agreement). The cash severance and benefits continuation provisions in the named executive employment agreements and the VP-level agreements are double-trigger arrangements.
The estimated aggregate change of control severance liability — encompassing both single-trigger equity acceleration and potential double-trigger cash severance and benefits continuation — is subject to final quantification. Preliminary estimates indicate that the total potential exposure, assuming all double-trigger provisions are triggered (i.e., all eligible employees are terminated without cause or resign for good reason within the applicable periods), could be in the range of $35,000,000 to $45,000,000 in cash severance and benefits, in addition to the equity acceleration already reflected in the per-share Merger consideration. Final quantification is being coordinated with the Company's financial advisors and is expected to be completed in advance of closing.
We have prepared a detailed Change of Control Severance Trigger Summary, set forth in Appendix D, which identifies each employee with a change of control provision, the agreement date, trigger type, estimated severance amount, and vesting acceleration. We also note that the Company maintains a separate Change of Control / Consent Tracker (an internal working document prepared by the Target's counsel, Caldwell, Raines & Sheppard LLP), which tracks approximately 340 commercial contracts and 26 enterprise license agreements containing change of control provisions requiring consent or notice. The employment-related change of control obligations addressed in this memorandum are separate from, and in addition to, those commercial contract consents and notices.
D. Intellectual Property Assignment Agreements
We have reviewed the IP assignment and invention assignment agreements for engineering and R&D employees across all jurisdictions, with particular attention to the Company's core software development teams in Zürich, Munich, and Reston. The following observations are noted:
(a) Dr. Markus Vogt (CTO). As noted above, Dr. Vogt's employment agreement contains a comprehensive IP assignment clause that is consistent with Swiss law requirements. IP assignment is confirmed.
(b) U.S. Employees. Standard offer letters for Luminex Systems Inc. employees contain a Proprietary Information and Inventions Assignment Agreement ("PIIA") as a condition of employment. We have confirmed that substantially all current U.S. engineering and R&D employees have executed the PIIA. Two former employees (departed in 2020 and 2021, respectively) who contributed to the Company's early-stage codebase did not have PIIAs on file; however, the Company represents that these individuals were engaged as employees (not contractors) and that their contributions are subject to the work-for-hire doctrine under U.S. copyright law.
(c) Swiss and German Employees. Under Swiss law (CO Art. 332) and German law (§ 69b UrhG for software; Arbeitnehmererfindungsgesetz for inventions), rights to employee-created IP generally vest in the employer to the extent created in the course of employment duties. Local counsel has confirmed that the standard employment agreements used by Luminex AG and Veltronix GmbH contain appropriate IP assignment clauses.
(d) Contractors. We have identified approximately 15 contractor agreements (primarily in India and the United States) that do not contain clear work-for-hire or IP assignment language. We recommend that these agreements be reviewed and remediated before closing.
A comprehensive analysis of IP ownership and assignment matters is set forth in the IP & Technology Due Diligence Summary Memorandum (a separate document prepared by our Technology Transactions group).
IV. U.S. Employee Benefit Plans (Luminex Systems Inc.)
A. Qualified Retirement Plans
401(k) Plan. Luminex Systems Inc. maintains the Luminex Systems Inc. 401(k) Savings Plan (the "401(k) Plan"), a defined contribution plan qualified under Section 401(a) of the Internal Revenue Code. The 401(k) Plan was adopted effective January 1, 2020 and is administered by the Company's human resources department, with Brightwater Capital Management serving as the recordkeeper and trustee. The 401(k) Plan is a salary deferral plan that permits eligible employees to contribute pre-tax and Roth after-tax elective deferrals up to the limits prescribed by Section 402(g) of the Code.
Key terms of the 401(k) Plan are as follows:
• Eligibility. All full-time and part-time employees of Luminex Systems Inc. who have attained age 21 and completed 30 days of service are eligible to participate.
• Employer Match. The Company provides a discretionary matching contribution equal to 50% of the first 6% of compensation deferred by each participant, subject to annual determination by the Board. The matching contribution has been made in each year since the Plan's inception.
• Vesting. Employee elective deferrals are 100% vested at all times. Employer matching contributions vest according to a three-year graded vesting schedule: 33% after Year 1, 67% after Year 2, and 100% after Year 3 of service.
• Plan Year. Calendar year (January 1 through December 31).
• Most Recent Form 5500. The 2023 Form 5500 was timely filed on October 14, 2024 (pursuant to a valid extension). We have reviewed the 2023 Form 5500 and the accompanying Schedule H. No material issues were noted. Total plan assets as of December 31, 2023 were approximately $42,300,000.
• IRS Determination Letter. The 401(k) Plan has not received an individual IRS determination letter. However, the Plan was adopted using a pre-approved plan document provided by Brightwater Capital Management, and the Company relies on the favorable IRS opinion letter issued to Fidelity for the pre-approved plan document (dated March 31, 2020, covering compliance through the 2017 Required Amendments List).
• Compliance History. No pending or prior IRS or DOL audits, examinations, or investigations with respect to the 401(k) Plan have been disclosed. No prohibited transactions, fiduciary breaches, or plan qualification failures have been identified.
Other Qualified Plans. No other qualified retirement plans (defined benefit pension plans, profit-sharing plans, or money purchase plans) are maintained by Luminex Systems Inc. or any member of its controlled group for purposes of Section 414(b), (c), or (m) of the Code.
ERISA Compliance. Based on our review of the plan documents, summary plan descriptions, and most recent amendments, the 401(k) Plan appears to be maintained in material compliance with ERISA and the applicable provisions of the Internal Revenue Code. We recommend that the Company obtain an updated favorable IRS opinion letter or determination letter in connection with the next available remedial amendment cycle to confirm the Plan's qualified status following the Transaction.
B. Health and Welfare Plans
Luminex Systems Inc. maintains the following health and welfare benefit plans for its U.S. employees:
Medical Plans. The Company offers two medical plan options to eligible employees: (i) a preferred provider organization (PPO) plan and (ii) a high-deductible health plan (HDHP), both insured through Meridian Assurance. Approximately 82% of eligible employees are enrolled in the PPO plan, and approximately 18% are enrolled in the HDHP. Both plans are fully insured. The current plan year runs from January 1, 2025 through December 31, 2025.
Dental and Vision Plans. Dental coverage is provided through Quillon Holdings (DPPO plan), and vision coverage is provided through Quillon Technologies. Both plans are fully insured and offered on an employee-election basis.
Health Savings Accounts (HSAs) and Flexible Spending Accounts (FSAs). Employees enrolled in the HDHP are eligible to contribute to an HSA, with the Company providing a seed contribution of $750 per individual/$1,500 per family. Healthcare and dependent care FSAs are offered to PPO plan participants, administered by Penmark Solutions.
Life Insurance and AD&D. The Company provides employer-paid basic group life insurance and accidental death and dismemberment (AD&D) coverage to all full-time employees, with a benefit of 2.0 times annual base salary, up to a maximum of $500,000. Coverage is provided under a group policy issued by Dunmore Specialty Insurance (Policy No. GL-4827651). Supplemental voluntary life insurance and AD&D coverage is available for purchase by employees, with evidence of insurability required for amounts exceeding the guaranteed issue limit.
Short-Term and Long-Term Disability. Short-term disability ("STD") benefits are provided through a fully insured plan issued by Dunmore Specialty Insurance, providing 60% of weekly base salary for up to 26 weeks following a 7-day elimination period. Long-term disability ("LTD") benefits are provided through a separate fully insured plan, also issued by Dunmore Specialty Insurance, providing 60% of monthly base salary (up to $15,000/month) following the expiration of the STD benefit period.
COBRA Compliance. The Company offers continuation coverage to eligible employees and their dependents in accordance with COBRA (the Consolidated Omnibus Budget Reconciliation Act of 1985). COBRA administration is outsourced to Penmark Solutions. We have reviewed the Company's COBRA notice procedures and found them to be in material compliance with applicable requirements.
ACA Compliance. As an "applicable large employer" within the meaning of Section 4980H of the Internal Revenue Code (maintaining approximately 1,650 full-time equivalent employees in the United States), Luminex Systems Inc. is subject to the employer shared responsibility provisions of the Affordable Care Act. The Company has represented that it has timely filed IRS Forms 1094-C and 1095-C for each applicable tax year since its initial filing obligation. We have reviewed the 2023 filing (the most recent completed year) and noted no material deficiencies. No Section 4980H assessable payment notices (Letter 226J) have been received.
HIPAA Compliance. The Company has adopted a HIPAA Privacy Policy and a HIPAA Security Policy applicable to its group health plans. The Company has designated a Privacy Officer (currently the VP of Human Resources) and has implemented administrative, physical, and technical safeguards for the protection of protected health information ("PHI") in accordance with the HIPAA Privacy Rule and Security Rule. No breaches of unsecured PHI have been reported.
C. Nonqualified Deferred Compensation Plans
Luminex Systems Inc. maintains the Luminex Systems Inc. Executive Deferred Compensation Plan (the "NQDC Plan"), a nonqualified deferred compensation arrangement subject to Section 409A of the Internal Revenue Code. The NQDC Plan was adopted effective January 1, 2022 and is available to a select group of management or highly compensated employees (currently approximately 30 participants, consisting of VP-level and above employees in the United States).
Key terms of the NQDC Plan include:
• Deferral Elections. Eligible participants may elect to defer up to 50% of base salary and up to 100% of annual bonus compensation. Deferral elections must be made prior to the beginning of the applicable calendar year (or within 30 days of initial eligibility, as applicable).
• Company Contributions. The Company may make discretionary contributions to participant accounts. No discretionary contributions were made in 2023 or 2024.
• Investment Elections. Participant accounts are deemed invested in a menu of hypothetical investment alternatives, including money market, bond, balanced, and equity index funds.
• Distribution Timing. Distributions are made upon separation from service, with a six-month delay for "specified employees" as required by Section 409A(a)(2)(B)(i). Participants may elect a lump-sum distribution or installment payments over 5 or 10 years. In-service distributions are available upon a scheduled date elected at the time of deferral.
• Change of Control. The NQDC Plan defines "change of control" by reference to the default definition in Treasury Regulation § 1.409A-3(i)(5) (change in ownership, change in effective control, and change in ownership of a substantial portion of assets). We note that the definition of a change of control event under Section 409A requires careful analysis to determine whether the reverse triangular Merger constitutes a "change in ownership" of Luminex Holdings under Treas. Reg. § 1.409A-3(i)(5)(v). Preliminary analysis indicates that the Merger should qualify as a "change in the ownership" of Luminex Holdings, as more than 50% of the total fair market value or total voting power of Luminex Holdings will be acquired by Ardent Capital / Apex Holdings in the Transaction. However, this analysis is subject to final confirmation by Sylvia Hartwell.
• Section 409A Compliance. Based on our review of the plan document and a sample of deferral election forms, the NQDC Plan appears to be in documentary compliance with Section 409A. We have not conducted a full operational compliance review and recommend that such a review be completed prior to closing, particularly with respect to the timing of initial deferral elections and the proper designation of "specified employees."
The aggregate account balance in the NQDC Plan as of December 31, 2024 was approximately $8,200,000. Treatment of NQDC Plan balances upon the change of control is governed by the plan terms and Section 409A. If the Merger constitutes a qualifying change of control under Section 409A, participants who have elected distribution upon a change of control event will receive accelerated distributions. Participants who have not made such an election will continue to receive distributions upon separation from service in accordance with their existing elections.
Section 409A Risk. We flag for the Buyer's attention the risk that any modification, amendment, or operational change to the NQDC Plan in connection with or following the Merger could trigger adverse tax consequences under Section 409A, including immediate income recognition and a 20% additional tax penalty. Any post-closing changes to the NQDC Plan should be reviewed by tax counsel.
D. Severance Plans and Policies
U.S. Severance Policy. Luminex Systems Inc. maintains a written severance policy (the "U.S. Severance Policy") applicable to all full-time U.S. employees. The U.S. Severance Policy provides for the following benefits upon involuntary termination without cause (excluding terminations for cause, voluntary resignations, and reductions in force covered by separate arrangements):
• Employees with less than 2 years of service: 4 weeks of base salary.
• Employees with 2 to 5 years of service: 8 weeks of base salary.
• Employees with 5 to 10 years of service: 12 weeks of base salary.
• Employees with more than 10 years of service: 16 weeks of base salary.
• Payment of employer-share of COBRA premiums for a period equal to the severance payment period.
• Outplacement assistance for up to 3 months.
The U.S. Severance Policy is administered as an ERISA welfare benefit plan. The Company has maintained a plan document and summary plan description. Payment of severance benefits is conditioned upon the employee's execution and non-revocation of a general release of claims in a form prescribed by the Company.
The U.S. Severance Policy provides that individual employment agreements with change of control severance provisions supersede and replace (do not supplement) the policy-level severance benefits, preventing "double dipping" by employees who are party to such agreements.
WARN Act. The Company has not disclosed any planned mass layoffs or plant closings in connection with the Transaction. However, we note that the federal Worker Adjustment and Retraining Notification ("WARN") Act and analogous state laws (including the Virginia WARN Act and the California WARN Act) impose advance notice obligations in the event of a "plant closing" or "mass layoff" affecting a specified number of employees. In particular:
• Federal WARN: 60 days' advance written notice required for plant closings or mass layoffs affecting 50 or more employees at a single site.
• Virginia WARN: Substantially mirrors federal WARN requirements.
• California WARN: 60 days' advance notice for plant closings, relocations, or mass layoffs affecting 50 or more employees within a 30-day period; broader coverage than federal WARN.
We recommend that a WARN Act compliance analysis be conducted in advance of any post-closing workforce restructuring actions, and that appropriate notice periods be incorporated into any integration planning timelines.
E. Section 280G Analysis
Section 280G of the Internal Revenue Code imposes a 20% excise tax on "excess parachute payments" received by "disqualified individuals" in connection with a change of control, and denies the payor a corporate income tax deduction for such excess payments under Section 4999.
Identification of Disqualified Individuals. A "disqualified individual" includes any individual who is an officer, shareholder (holding more than 1% of the outstanding stock), or highly compensated individual of the corporation. Based on our review, the following persons are likely disqualified individuals with respect to the Merger:
• Dr. Stefan Kessler (CEO; 8.5% shareholder)
• Annelise Gruber (CFO; 4.2% shareholder)
• Dr. Markus Vogt (CTO; 3.8% shareholder)
• Approximately 8 to 12 additional officers and highly compensated employees (VP-level and above) whose compensation and equity holdings exceed applicable thresholds
Preliminary 280G Calculations. The potential "parachute payments" for each disqualified individual include (i) acceleration of unvested equity awards upon the change of control (single-trigger equity vesting), (ii) severance payments triggered upon qualifying terminations following the change of control (double-trigger cash severance), and (iii) any other compensation contingent upon or payable in connection with the change of control (including retention bonuses, if implemented). The present value of these payments must be compared to the individual's "base amount" (average W-2 compensation over the five tax years preceding the year in which the change of control occurs, or the individual's period of service if shorter) to determine whether the aggregate parachute payments exceed 3.0 times the base amount, triggering excise tax liability on the excess over 1.0 times the base amount.
Preliminary calculations are being prepared by Pendleton & Associates LLP (the Company's independent accounting firm) in coordination with Sylvia Hartwell. Given the magnitude of the equity acceleration for the named executives (Dr. Kessler: approximately $238,000,000 in equity consideration; Ms. Gruber: approximately $117,600,000; Dr. Vogt: approximately $106,400,000), the 280G threshold is likely to be exceeded for all three named executives and potentially for additional disqualified individuals.
Private-Company Exemption. Because Luminex Systems Holdings Inc. is a privately held corporation (with no class of stock readily tradeable on an established securities market or otherwise), the private-company exemption under Section 280G(b)(5)(B) may be available. Under this exemption, payments that would otherwise constitute "parachute payments" can be exempted from the excise tax and the loss of deductibility if the payments are approved by a vote of more than 75% of the outstanding voting stock of the corporation, held by shareholders other than the disqualified individual receiving the payment, after adequate disclosure of all material facts. We note that the current shareholder base (Ridgeline 52%, Meridian 20%, management 28%) is sufficiently concentrated to facilitate such a vote.
The availability and logistics of a Section 280G shareholder vote are being coordinated with Caldwell, Raines & Sheppard LLP (Patricia Okonkwo and Daniel Feinberg, who represent the Target in the Transaction) and the Company's tax advisors. The shareholder vote, if pursued, would need to be completed prior to the closing of the Merger. Cross-reference is made to the tax provisions of the Merger Agreement, which contain customary 280G cooperation covenants.
V. Equity Incentive Plans and Treatment of Equity Awards
A. Current Equity Incentive Plans
Luminex Systems Holdings Inc. maintains the Luminex Systems Holdings Inc. 2021 Equity Incentive Plan (the "2021 Plan"), adopted by the Board and approved by the shareholders on June 14, 2021 in connection with the Company's corporate reorganization. The 2021 Plan is the Company's sole equity incentive plan.
Key terms of the 2021 Plan are as follows:
• Total Equity Pool. 39,200,000 shares of Common Stock have been reserved for issuance under the 2021 Plan, representing 28% of the Company's 140,000,000 fully diluted shares.
• Types of Awards. The 2021 Plan authorizes the grant of (i) incentive stock options (ISOs), (ii) nonqualified stock options (NQSOs), (iii) restricted stock awards, and (iv) restricted stock units (RSUs).
• Outstanding Awards. As of March 1, 2025, the following awards were outstanding under the 2021 Plan:
• Vesting Schedules. Stock options and RSUs generally vest over a four-year period, with 25% vesting on the first anniversary of the grant date and the remainder vesting in equal monthly installments over the subsequent 36 months ("four-year cliff and ratable" vesting). Certain executive grants include performance-based vesting conditions tied to revenue and EBITDA targets.
• Change of Control Acceleration. Section 11 of the 2021 Plan provides for single-trigger acceleration of all outstanding, unvested awards upon a "Change of Control" (as defined in the Plan). The definition of "Change of Control" in the 2021 Plan includes (i) any merger, consolidation, or similar business combination in which the Company is not the surviving entity (or in which the Company's existing shareholders cease to hold more than 50% of the voting securities of the surviving entity), (ii) the sale of all or substantially all of the Company's assets, and (iii) the acquisition by any person of more than 50% of the outstanding voting securities of the Company. The Merger satisfies this definition.
B. Treatment of Outstanding Equity Awards in the Merger
Pursuant to Section 2.5 of the Merger Agreement dated March 24, 2025, the outstanding equity awards under the 2021 Plan will be treated as follows at the Effective Time of the Merger:
(a) Vested Stock Options. Each vested and outstanding stock option will be cancelled and converted into the right to receive an amount in cash (less applicable withholding taxes) equal to (i) the per-share Merger Consideration of $20.00, less (ii) the per-share exercise price of such option, multiplied by (iii) the number of shares subject to the option. For example, a vested option covering 100,000 shares with an exercise price of $8.50 would entitle the holder to a cash payment of $1,150,000 ($20.00 - $8.50 = $11.50 × 100,000 shares).
(b) Unvested Stock Options. Pursuant to the single-trigger acceleration provision in Section 11 of the 2021 Plan, all unvested stock options vest in full immediately prior to the Effective Time and are then treated in the same manner as vested options described in clause (a) above.
(c) Vested RSUs. Each vested RSU will be cancelled and converted into the right to receive an amount in cash (less applicable withholding taxes) equal to the per-share Merger Consideration of $20.00 per RSU.
(d) Unvested RSUs. All unvested RSUs vest in full immediately prior to the Effective Time pursuant to the single-trigger acceleration provision and are then treated in the same manner as vested RSUs described in clause (c) above.
(e) Restricted Stock. All outstanding restricted stock (which is fully vested as noted in the table above) will be cancelled and converted into the right to receive the per-share Merger Consideration of $20.00 per share, subject to applicable withholding. Any transfer restrictions lapse upon the Merger.
Rollover Equity. Notwithstanding the foregoing, certain management participants (including the three named executives and approximately 85 other management and employee holders) have entered into Rollover Agreements pursuant to which they will contribute a portion of their Merger consideration into Apex Holdings in exchange for equity interests in Apex Holdings. The total rollover amount is $405,020,000, as described in Section III.B above and detailed in Appendix E. Rollover participants receive cash for the non-rollover portion of their equity and contribute the rollover portion on a pre-tax basis (subject to the Section 351 analysis described in Section V.C below).
Post-Closing Equity. Following the closing of the Merger, Ardent Apex Holdings Inc. intends to adopt a Management Equity Incentive Plan (the "New Plan") providing for the grant of stock options, RSUs, and profits interests to key employees of the Luminex group. The terms of the New Plan are set forth in a separate document and are not addressed in detail in this memorandum. See Section X.A below for further discussion.
C. Tax Implications of Equity Treatment
The tax implications of the equity treatment in the Merger are summarized below. Detailed analysis is set forth in separate tax memoranda prepared by Sylvia Hartwell.
Section 409A. RSUs that are settled in cash upon the change of control must satisfy the requirements of Section 409A with respect to the timing and form of payment. The Merger Agreement provides for cash settlement at the Effective Time, which constitutes a permissible payment event under Section 409A to the extent the Merger constitutes a "change in the ownership" of Luminex Holdings under Treas. Reg. § 1.409A-3(i)(5). As noted in Section IV.C above, preliminary analysis supports this conclusion, subject to final confirmation.
Section 422. To the extent any outstanding stock options were intended to qualify as incentive stock options ("ISOs") under Section 422 of the Code, the cancellation and cash-out of such options in the Merger will result in disqualification of ISO status. Holders of ISOs will be treated as having exercised nonqualified stock options for tax purposes, and the spread between the exercise price and the per-share Merger Consideration will be subject to ordinary income tax and FICA withholding at the time of payment. No capital gains treatment will be available.
Section 83. Restricted stock awards that are subject to vesting restrictions at the time of grant (and for which Section 83(b) elections were timely filed) will generate capital gain upon receipt of the Merger consideration to the extent the $20.00 per share exceeds the fair market value at the time of grant (or the amount paid for the stock, if applicable). For restricted stock awards for which no Section 83(b) election was filed, the Merger consideration will be treated as ordinary income to the extent of any remaining vesting at the Effective Time. Based on our review, all 13,000,000 shares of restricted stock are fully vested, and the Company has represented that Section 83(b) elections were timely filed by all recipients.
Withholding Obligations. Luminex Systems Inc. (and the surviving entity following the Merger) will be required to withhold applicable federal, state, and local income taxes, as well as FICA taxes (Social Security and Medicare), from cash payments made to U.S.-based equity award holders. For international equity holders, withholding obligations will be determined under the applicable local tax laws. The Company's payroll department and external payroll provider (ADP) are being coordinated on the mechanics of withholding and reporting for Merger-related equity payments.