1001-00004 · Ardent Capital Partners · Antitrust & Regulatory

hsr-filing-cover-letter-ftc.docx DOCUMENT M&A / Corporate

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CONFIDENTIAL — SUBJECT TO 16 C.F.R. § 803.20

CALDERWOOD & HARKNESS LLP Attorneys at Law

7 Times Square New York, NY 10036 Telephone: (212) 558-4000 Facsimile: (212) 558-3588 www.calderwoodharkness.com

March 28, 2025

BY HAND DELIVERY AND ELECTRONIC FILING

Premerger Notification Office Bureau of Competition Federal Trade Commission 600 Pennsylvania Avenue, NW Washington, DC 20580

Re: Premerger Notification Filing Pursuant to the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, 15 U.S.C. § 18a

Transaction: Acquisition of Luminex Systems Holdings Inc. by Ardent Apex Holdings Inc.

HSR Transaction No.: HSR-20250328-4192

To the Premerger Notification Office:

I. Introduction and Purpose

Calderwood & Harkness LLP represents the filing person, Ardent Apex Holdings Inc. ("Apex Holdings" or "Parent"), a corporation organized and existing under the laws of the State of Delaware, in connection with the proposed acquisition of Luminex Systems Holdings Inc. ("Luminex Holdings" or the "Target"), a corporation organized and existing under the laws of the State of Delaware. This letter accompanies the Notification and Report Form (the "Notification Form") filed on behalf of Apex Holdings pursuant to Section 7A of the Clayton Act, 15 U.S.C. § 18a, and the rules and regulations promulgated thereunder at 16 C.F.R. Parts 801–803 (the "HSR Act" and the "HSR Rules," respectively).

The filing is being submitted on behalf of Ardent Apex Holdings Inc. as the acquiring person (the "Acquiring Person") within the meaning of 16 C.F.R. § 801.2. This cover letter is intended to provide the Premerger Notification Office and the staff of the Bureau of Competition (the "Staff") with background information regarding the transaction and the parties thereto, and to supplement certain information set forth in the Notification Form.

All communications regarding this filing should be directed to the undersigned:

Elaine Forsythe Partner, Antitrust & Competition Practice Calderwood & Harkness LLP 7 Times Square New York, NY 10036 Telephone: (212) 558-4127

Email: eforsythe@calderwoodharkness.com

We note that a corresponding Notification and Report Form is being filed simultaneously on behalf of the acquired person, Luminex Systems Holdings Inc., by its counsel at Caldwell, Raines & Sheppard LLP. Communications regarding the acquired person's filing may be directed to:

Patricia Okonkwo, Partner Gregory Lam, Partner, Antitrust Caldwell, Raines & Sheppard LLP 51 West 52nd Street New York, NY 10019 Telephone: (212) 403-1200

Email: pokonkwo@caldwellraines.com / glam@caldwellraines.com

II. Description of the Transaction

On March 24, 2025, Ardent Apex Holdings Inc., Ardent Apex Merger Sub Inc., a corporation organized and existing under the laws of the State of Delaware and a wholly owned direct subsidiary of Apex Holdings (the "Merger Sub"), and Luminex Systems Holdings Inc. entered into an Agreement and Plan of Merger (the "Merger Agreement"), a fully executed copy of which is enclosed as an Item 4(c) document with the Notification Form.

Pursuant to the Merger Agreement, Merger Sub will be merged with and into Luminex Holdings (the "Merger"), with Luminex Holdings continuing as the surviving corporation and a wholly owned direct subsidiary of Apex Holdings. The Merger will be structured as a reverse triangular merger in accordance with the applicable provisions of the Delaware General Corporation Law (the "DGCL"), specifically Section 251 thereof.

Upon consummation of the Merger, each outstanding share of common stock of Luminex Holdings (other than shares held in the treasury of Luminex Holdings, shares held by Apex Holdings or Merger Sub, dissenting shares, and shares subject to management rollover arrangements) will be converted into the right to receive $20.00 per share in cash, without interest and net of applicable withholding taxes. The aggregate equity value of the transaction is approximately $2,800,000,000 (Two Billion Eight Hundred Million Dollars), calculated on the basis of 140,000,000 fully diluted shares of Luminex Holdings common stock (inclusive of all outstanding shares, in-the-money stock options, restricted stock units, and performance share units, in each case on a net-exercise or treasury-stock basis as set forth in the Merger Agreement). The aggregate transaction value exceeds the applicable threshold under the HSR Act and the rules promulgated thereunder.

The following summarizes the principal entities involved in the transaction:

Ardent Apex Holdings Inc. Apex Holdings is a Delaware corporation incorporated on March 5, 2025, for the purpose of facilitating the acquisition of Luminex Holdings. Apex Holdings is a wholly owned subsidiary of Ardent Capital Partners III LP ("Ardent Capital" or "Fund III"), a Delaware limited partnership headquartered at 399 Park Avenue, 42nd Floor, New York, NY 10022. Ardent Capital is a private equity fund (Fund III, vintage 2023, total committed capital of approximately $12.5 billion) managed by its general partner, Ardent Capital GP III LLC, a Delaware limited liability company. The co-founders and managing partners of Ardent Capital GP III LLC are Theodore Hargrove and Victoria Langford.

Ardent Apex Merger Sub Inc. Merger Sub is a Delaware corporation incorporated on March 7, 2025, and was formed exclusively to effect the Merger. Merger Sub is a wholly owned direct subsidiary of Apex Holdings and has conducted no business operations, has no employees, and has no material assets or liabilities other than those incident to its formation and the execution and delivery of the Merger Agreement. Merger Sub will cease to exist as a separate corporate entity upon consummation of the Merger.

Luminex Systems Holdings Inc. Luminex Holdings is a Delaware corporation incorporated on June 14, 2021, with operational headquarters at 2100 Reston Gateway Drive, Suite 800, Reston, Virginia 20191. Luminex Holdings serves as the U.S. intermediate holding company for Luminex Systems AG, a Swiss Aktiengesellschaft (stock corporation) organized and headquartered in Zürich, Switzerland. Through its subsidiaries and affiliated entities, Luminex is a cloud-based enterprise software-as-a-service ("SaaS") company offering enterprise resource planning ("ERP"), procurement automation, and supply-chain analytics solutions under the brand name "Luminex One." As of the date of this filing, Luminex has approximately 4,200 employees globally and reported total revenue of approximately $487 million for the fiscal year ended December 31, 2024.

III. Filing Fee

The applicable filing fee of $2,390,000 has been calculated based on the aggregate transaction value of $2,800,000,000 in accordance with the 2025 filing fee schedule established pursuant to Section 7A(b)(1)(A) of the Clayton Act, as amended by the Merger Filing Fee Modernization Act of 2022, and the schedule of fees published by the Federal Trade Commission and the Antitrust Division of the Department of Justice for the period beginning February 21, 2025. The aggregate transaction value of $2,800,000,000 falls within the fee tier applicable to transactions valued at more than $1,000,000,000 but less than $5,000,000,000.

Payment of the filing fee in the amount of $2,390,000 is being transmitted simultaneously with this filing via wire transfer to the designated account of the Federal Trade Commission in accordance with the current filing procedures specified by the Premerger Notification Office. A confirmation of the wire transfer is enclosed with the Notification Form.

IV. Identification of the Filing Person and Ultimate Parent Entity

4.1 Acquiring Person

The filing person is Ardent Apex Holdings Inc. The ultimate parent entity ("UPE") of the Acquiring Person, as determined in accordance with 16 C.F.R. § 801.1(a)(3), is Ardent Capital Partners III LP.

Filing Person:

Ardent Apex Holdings Inc. Entity Type: Corporation (Delaware) Employer Identification Number (EIN): 93-2178435

Address: c/o Ardent Capital Partners III LP, 399 Park Avenue, 42nd Floor, New York, NY 10022

Registered Agent in Delaware: National Registered Agents of Delaware, Inc., 160 Greentree Drive, Suite 101, Dover, DE 19904

Ultimate Parent Entity of the Acquiring Person:

Ardent Capital Partners III LP Entity Type: Limited Partnership (Delaware) Employer Identification Number (EIN): 87-3941026

Address: 399 Park Avenue, 42nd Floor, New York, NY 10022

General Partner: Ardent Capital GP III LLC (Delaware limited liability company)

4.2 Acquired Person

The acquired person is Luminex Systems Holdings Inc. The identification of the UPE of the Acquired Person, including the pre-transaction ownership structure, is set forth below.

Acquired Person:

Luminex Systems Holdings Inc. Entity Type: Corporation (Delaware) Employer Identification Number (EIN): 86-2547193

Address: 2100 Reston Gateway Drive, Suite 800, Reston, VA 20191

Registered Agent in Delaware: Capitol Corporate Services, Inc., 1675 South Ashbury Asset Advisors, Suite B, Dover, DE 19901

As of the date hereof, the pre-transaction ownership structure of Luminex Holdings is as follows:

• 52% — Ridgeline Growth Equity Fund II LP, a Delaware limited partnership headquartered at 200 Clarendon Street, 52nd Floor, Boston, MA 02116 (Managing Partner: Jonathan Ashford);

• 20% — Meridian Venture Partners IV LP, a Delaware limited partnership headquartered at 600 Montgomery Street, Suite 2800, San Francisco, CA 94111 (Managing Partner: Claire Fujimoto); and

• 28% — Management and employees of Luminex Holdings and its subsidiaries, held through various individual holdings and participation in equity incentive plans.

The determination of the UPE of the Acquired Person for purposes of the HSR Act is set forth in the Notification Form filed by the acquired person and its counsel.

V. Identification of Entities Within the Acquiring Person

The following entities are included within the "person" of the Acquiring Person for purposes of the HSR Act and the HSR Rules (i.e., the UPE and all entities that the UPE controls within the meaning of 16 C.F.R. § 801.1(b)):

1. Ardent Capital Partners III LP — Ultimate Parent Entity (Delaware limited partnership; EIN: 87-3941026; 399 Park Avenue, 42nd Floor, New York, NY 10022).

2. Ardent Capital GP III LLC — General partner of the UPE (Delaware limited liability company; general partner and sole manager of Ardent Capital Partners III LP).

3. Ardent Apex Holdings Inc. — Intermediate holding company and filing person (Delaware corporation; EIN: 93-2178435; wholly owned subsidiary of Ardent Capital Partners III LP).

4. Ardent Apex Merger Sub Inc. — Merger subsidiary (Delaware corporation; EIN: 93-2178502; wholly owned subsidiary of Ardent Apex Holdings Inc.; formed exclusively to effect the Merger).

In addition to the foregoing, the filing person wishes to bring to the attention of the Staff the following entity under common control with the Acquiring Person:

5. Vectis Solutions LLC — A Delaware limited liability company (EIN: 82-4910337), headquartered at 4000 Shoreline Court, Suite 300, South San Francisco, CA 94080 (Chief Executive Officer: Michael Parekh). Vectis Solutions LLC is a portfolio company of Ardent Capital Partners II LP, a prior fund in the Ardent Capital fund family. Ardent Capital Partners III LP, through its general partner Ardent Capital GP III LLC and the common management and control exercised by the Ardent Capital platform, is an associate of, and exercises common control over, Vectis Solutions LLC for purposes of the HSR Act.

Vectis Solutions LLC operates in the procurement-automation SaaS market, offering a cloud-based procurement platform to mid-market and enterprise customers. For the fiscal year ended December 31, 2024, Vectis reported total revenue of approximately $68 million and held an estimated market share of approximately 7% in the procurement-automation SaaS segment (as further described in Section VI below).

The filing person has disclosed Vectis Solutions LLC as an associate or entity under common control with the Acquiring Person for purposes of the overlap analysis required under Item 7 of the Notification Form. An organizational chart of the Acquiring Person, including the relationship among the Ardent Capital funds and Vectis Solutions LLC, is enclosed with the Notification Form.

VI. Description of the Relevant Product and Geographic Markets

The filing person provides the following information regarding the relevant product and geographic markets potentially affected by the transaction, for the convenience of the Staff in its review.

Product Market. The primary product market relevant to the transaction is procurement-automation SaaS (software-as-a-service), which constitutes a distinct segment within the broader enterprise software and ERP market. Procurement-automation SaaS platforms enable enterprise customers to automate and manage procurement workflows, including sourcing, requisition-to-pay, contract management, supplier management, spend analytics, and related functions, through cloud-delivered software applications typically offered on a subscription basis.

Luminex Systems Holdings Inc., through its operating subsidiaries, operates the "Luminex One" platform, which includes integrated cloud-based ERP, procurement automation, and supply-chain analytics capabilities. Based on publicly available data and the filing person's internal estimates, Luminex holds an estimated market share of approximately 18% in the procurement-automation SaaS segment in the United States.

Vectis Solutions LLC, a portfolio company controlled by the Acquiring Person's UPE (as described in Section V above), also operates in the procurement-automation SaaS segment, offering a cloud-based procurement platform primarily to mid-market and enterprise customers in the United States. Vectis holds an estimated market share of approximately 7% in the procurement-automation SaaS segment in the United States.

On a combined post-transaction basis, the Acquiring Person's entities (including Luminex Holdings and Vectis Solutions LLC) would hold an estimated combined market share of approximately 25% in the procurement-automation SaaS segment in the United States.

Geographic Market. The relevant geographic market includes the United States, which is the principal market in which both Luminex and Vectis generate the substantial majority of their revenues. For the fiscal year ended December 31, 2024, Luminex generated approximately $194.8 million in U.S. revenue (representing approximately 40% of its total global revenue of $487 million), and Vectis generated approximately $68 million in revenue, substantially all of which was derived from U.S.-based customers. The filing person notes that, given the global nature of SaaS deployment and the ability of customers to access cloud-based software platforms from any location, the relevant geographic market may also be characterized as worldwide for certain analytical purposes.

The filing person acknowledges the horizontal overlap between Luminex and Vectis in the procurement-automation SaaS segment and is prepared to cooperate fully with Commission staff in any review of the competitive effects of the proposed transaction. The filing person notes that the procurement-automation SaaS market remains highly competitive, with numerous well-capitalized competitors including, among others, Ostrander Industries (Sundial Corporation), Pemberton & Co. (a subsidiary of Ostrander Equity Partners portfolio companies), Meridian Corporation, Cobalt Ridge Holdings, and Cobalt Ridge Industries.

VII. Transaction Structure and Timing

The transaction will be effected as a single-step reverse triangular merger under the DGCL, in which Merger Sub will merge with and into Luminex Holdings, with Luminex Holdings continuing as the surviving corporation and a wholly owned subsidiary of Apex Holdings.

The Merger Agreement was executed on March 24, 2025. Consummation of the Merger is subject to the satisfaction or waiver of customary closing conditions, including, without limitation:

(a) the expiration or early termination of the applicable waiting period under the HSR Act;

(b) the receipt of approval from the stockholders of Luminex Holdings (by the affirmative vote of the holders of a majority of the outstanding shares of Luminex Holdings common stock entitled to vote thereon);

(c) the absence of any law, order, injunction, or decree that prohibits, restrains, or makes illegal the consummation of the Merger;

(d) the accuracy of the representations and warranties of the parties (subject to customary materiality and material adverse effect qualifiers);

(e) compliance with the covenants and agreements of the parties; and

(f) the receipt of certain other governmental and regulatory approvals, including, to the extent required, the completion of the CFIUS review process.

The Merger Agreement provides for an outside date (the "Outside Date") of September 10, 2025, which may be extended by either party for up to three (3) additional months (to December 10, 2025) if, as of the initial Outside Date, the sole closing condition that has not been satisfied or waived is the receipt of required regulatory approvals (including expiration or termination of the HSR Act waiting period or the completion of any Second Request process). The parties currently estimate that closing of the Merger will occur during the third quarter of 2025 (July–August 2025), subject to the timely receipt of all necessary regulatory approvals.

VIII. Financing

The aggregate consideration payable in connection with the Merger (including the equity consideration, the repayment of existing indebtedness of Luminex Holdings, and the payment of transaction fees and expenses) will be financed through the following sources:

1. Senior Secured Credit Facility: $1,400,000,000. Consisting of (i) a first lien senior secured Term Loan B facility in the aggregate principal amount of $1,200,000,000 and (ii) a first lien senior secured revolving credit facility in the aggregate principal amount of $200,000,000 (the revolving credit facility expected to be undrawn at closing). The senior secured credit facility is being arranged by Stonebridge Credit Partners LLC as lead arranger and administrative agent, with Birchwood Capital Finance LLC and Ironvale Credit Fund III LP serving as co-lenders.

2. Subordinated Mezzanine Notes: $300,000,000. Subordinated unsecured mezzanine notes to be issued to Crestline Mezzanine Partners II LP.

3. Sponsor Equity Contribution: $695,980,000. Cash equity contribution from Ardent Capital Partners III LP, the UPE of the Acquiring Person.

4. Co-Investment Equity: $300,000,000. Consisting of (i) $200,000,000 from Northvale Sovereign Holdings Ltd. and (ii) $100,000,000 from Summit Ridge Capital Partners LP, in each case pursuant to co-investment arrangements with Ardent Capital Partners III LP.

5. Management Rollover Equity: Approximately $405,020,000. Certain members of Luminex Holdings' senior management team will roll over a portion of their existing equity holdings into equity interests in Apex Holdings (or a parent entity thereof) in connection with the closing of the Merger, representing aggregate rollover equity of approximately $405,020,000.

Committed financing letters with respect to the debt financing described above have been obtained and are referenced in the Merger Agreement. The filing person confirms that the aggregate sources of financing are sufficient to fund the total consideration payable in connection with the Merger.

IX. Other Regulatory Filings

In addition to this filing under the HSR Act, the proposed transaction is subject to, or the parties have elected to make, the following regulatory filings and notifications:

1. Committee on Foreign Investment in the United States (CFIUS). The parties intend to file a voluntary joint notice with CFIUS on April 4, 2025 (anticipated Tracking No. CFIUS-2025-0087). The filing is being made in light of Luminex Holdings' existing contracts with certain U.S. Government agencies, including the Department of Defense, the Department of Energy, and the General Services Administration, and the parties' desire to obtain CFIUS clearance as a condition to closing.

2. Swiss Competition Commission / SECO. A notification under Swiss competition law is being filed with the Secretariat of the Competition Commission (Wettbewerbskommission) / State Secretariat for Economic Affairs (SECO) on April 7, 2025 (anticipated File No. 32-0973), in connection with the acquisition of Luminex Systems AG.

3. German Federal Cartel Office (Bundeskartellamt). A merger control notification is being filed with the German Federal Cartel Office on April 9, 2025 (anticipated File No. B6-34/25), in connection with the parties' activities in Germany.

4. EU Foreign Subsidies Regulation. A notification under Regulation (EU) 2022/2560 of the European Parliament and of the Council of 14 December 2022 on foreign subsidies distorting the internal market (the "Foreign Subsidies Regulation") is being filed with the European Commission on April 11, 2025 (anticipated Case No. FSR.M.2025-0412).

The filing person will promptly inform the Staff of any material developments with respect to the foregoing regulatory filings.

X. Voluntary Submissions and Item 4(c)/4(d) Documents

Enclosed with the Notification Form are copies of all documents required to be submitted under Items 4(c) and 4(d) of the Notification Form. These documents include, without limitation:

(a) the Agreement and Plan of Merger, dated March 24, 2025, among Ardent Apex Holdings Inc., Ardent Apex Merger Sub Inc., and Luminex Systems Holdings Inc. (including all schedules, annexes, and exhibits thereto);

(b) all studies, surveys, analyses, and reports that were prepared by or for any officer(s) or director(s) of the Acquiring Person (or, to the extent within the filing person's possession, custody, or control, of the Target) for the purpose of evaluating or analyzing the proposed transaction with respect to market shares, competition, competitors, markets, potential for sales growth, or expansion into product or geographic markets; and

Pursuant to the confidentiality provisions of 16 C.F.R. § 803.20, the filing person respectfully requests that all materials submitted in connection with this filing, including the Notification Form, this cover letter, and all enclosures and attachments thereto, be treated as confidential and exempt from public disclosure under the Freedom of Information Act, 5 U.S.C. § 552, and any applicable state freedom-of-information or open-records laws. The materials submitted herewith contain confidential business information, proprietary financial data, and trade secrets, the disclosure of which could cause competitive harm to the filing person and the other parties to the transaction.

XI. Request for Early Termination

The filing person respectfully requests early termination of the initial thirty-day waiting period under Section 7A(b)(1)(B) of the Clayton Act, 15 U.S.C. § 18a(b)(1)(B), to the extent that the Commission determines, in its discretion, that early termination is appropriate. The filing person believes that the proposed transaction does not raise competitive concerns that would warrant the full statutory waiting period and that the information provided in the Notification Form and this cover letter is sufficient to enable the Staff to complete its initial review on an expedited basis.

XII. Contact Information for Communications

All communications regarding this filing and the Notification Form should be directed to:

Elaine Forsythe Partner, Antitrust & Competition Calderwood & Harkness LLP 7 Times Square New York, NY 10036 Telephone: (212) 558-4127

Email: eforsythe@calderwoodharkness.com

With a copy to:

James Prentice Partner, Mergers & Acquisitions Calderwood & Harkness LLP 7 Times Square New York, NY 10036 Telephone: (212) 558-4350

Email: jprentice@calderwoodharkness.com

Counsel for the Acquired Person:

Patricia Okonkwo Partner Caldwell, Raines & Sheppard LLP 51 West 52nd Street New York, NY 10019 Telephone: (212) 403-1215

Email: pokonkwo@caldwellraines.com

Gregory Lam Partner, Antitrust Caldwell, Raines & Sheppard LLP 51 West 52nd Street New York, NY 10019 Telephone: (212) 403-1342

Email: glam@caldwellraines.com

XIII. Enclosures

The following documents are enclosed with and accompany this filing:

1. Notification and Report Form (completed), filed on behalf of Ardent Apex Holdings Inc. as the Acquiring Person.

2. Filing fee payment confirmation in the amount of $2,390,000 (wire transfer confirmation).

3. Agreement and Plan of Merger, dated March 24, 2025, among Ardent Apex Holdings Inc., Ardent Apex Merger Sub Inc., and Luminex Systems Holdings Inc. (including all schedules, annexes, and exhibits thereto).

4. Item 4(c) and 4(d) documents, as described in Section X above.

5. Organizational charts of (a) the Acquiring Person, including the relationship among Ardent Capital Partners III LP, Ardent Capital GP III LLC, Ardent Apex Holdings Inc., Ardent Apex Merger Sub Inc., and Vectis Solutions LLC; and (b) the Acquired Person, including the relationship between Luminex Systems Holdings Inc. and Luminex Systems AG.

6. Annual reports, audited financial statements, and other financial information as required by the Notification Form for each of the Acquiring Person and its controlled entities.

We trust that the foregoing information and the enclosed Notification Form and supporting documents are sufficient for the Staff's initial review of the proposed transaction. Should Commission staff require any additional information or have any questions regarding this filing, the undersigned is available at the Staff's convenience and will endeavor to respond promptly to any inquiries. The filing person is committed to cooperating fully with the Commission in its review of the transaction.

We appreciate the attention of the Premerger Notification Office to this matter.

Respectfully submitted,

CALDERWOOD & HARKNESS LLP

By: ________

Elaine Forsythe Partner, Antitrust & Competition Calderwood & Harkness LLP 7 Times Square New York, NY 10036 Telephone: (212) 558-4127

Email: eforsythe@calderwoodharkness.com

cc: (via email)

James Prentice, Partner, Calderwood & Harkness LLP

Sandra Tung, Counsel, Calderwood & Harkness LLP

Ryan Kowalski, Associate, Calderwood & Harkness LLP

Theodore Hargrove, Co-Founder & Managing Partner, Ardent Capital Partners III LP

Victoria Langford, Co-Founder & Managing Partner, Ardent Capital Partners III LP

Patricia Okonkwo, Partner, Caldwell, Raines & Sheppard LLP (courtesy copy)

CONFIDENTIAL — SUBJECT TO 16 C.F.R. § 803.20
CALDERWOOD & HARKNESS LLP Attorneys at Law
7 Times Square New York, NY 10036 Telephone: (212) 558-4000 Facsimile: (212) 558-3588 www.calderwoodharkness.com
March 28, 2025
BY HAND DELIVERY AND ELECTRONIC FILING
Premerger Notification Office Bureau of Competition Federal Trade Commission 600 Pennsylvania Avenue, NW Washington, DC 20580
Re: Premerger Notification Filing Pursuant to the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, 15 U.S.C. § 18a
Transaction: Acquisition of Luminex Systems Holdings Inc. by Ardent Apex Holdings Inc.
HSR Transaction No.: HSR-20250328-4192
To the Premerger Notification Office:
I. Introduction and Purpose
Calderwood & Harkness LLP represents the filing person, Ardent Apex Holdings Inc. ("Apex Holdings" or "Parent"), a corporation organized and existing under the laws of the State of Delaware, in connection with the proposed acquisition of Luminex Systems Holdings Inc. ("Luminex Holdings" or the "Target"), a corporation organized and existing under the laws of the State of Delaware. This letter accompanies the Notification and Report Form (the "Notification Form") filed on behalf of Apex Holdings pursuant to Section 7A of the Clayton Act, 15 U.S.C. § 18a, and the rules and regulations promulgated thereunder at 16 C.F.R. Parts 801–803 (the "HSR Act" and the "HSR Rules," respectively).
The filing is being submitted on behalf of Ardent Apex Holdings Inc. as the acquiring person (the "Acquiring Person") within the meaning of 16 C.F.R. § 801.2. This cover letter is intended to provide the Premerger Notification Office and the staff of the Bureau of Competition (the "Staff") with background information regarding the transaction and the parties thereto, and to supplement certain information set forth in the Notification Form.
All communications regarding this filing should be directed to the undersigned:
Elaine Forsythe Partner, Antitrust & Competition Practice Calderwood & Harkness LLP 7 Times Square New York, NY 10036 Telephone: (212) 558-4127
Email: eforsythe@calderwoodharkness.com
We note that a corresponding Notification and Report Form is being filed simultaneously on behalf of the acquired person, Luminex Systems Holdings Inc., by its counsel at Caldwell, Raines & Sheppard LLP. Communications regarding the acquired person's filing may be directed to:
Patricia Okonkwo, Partner Gregory Lam, Partner, Antitrust Caldwell, Raines & Sheppard LLP 51 West 52nd Street New York, NY 10019 Telephone: (212) 403-1200
Email: pokonkwo@caldwellraines.com / glam@caldwellraines.com
II. Description of the Transaction
On March 24, 2025, Ardent Apex Holdings Inc., Ardent Apex Merger Sub Inc., a corporation organized and existing under the laws of the State of Delaware and a wholly owned direct subsidiary of Apex Holdings (the "Merger Sub"), and Luminex Systems Holdings Inc. entered into an Agreement and Plan of Merger (the "Merger Agreement"), a fully executed copy of which is enclosed as an Item 4(c) document with the Notification Form.
Pursuant to the Merger Agreement, Merger Sub will be merged with and into Luminex Holdings (the "Merger"), with Luminex Holdings continuing as the surviving corporation and a wholly owned direct subsidiary of Apex Holdings. The Merger will be structured as a reverse triangular merger in accordance with the applicable provisions of the Delaware General Corporation Law (the "DGCL"), specifically Section 251 thereof.
Upon consummation of the Merger, each outstanding share of common stock of Luminex Holdings (other than shares held in the treasury of Luminex Holdings, shares held by Apex Holdings or Merger Sub, dissenting shares, and shares subject to management rollover arrangements) will be converted into the right to receive $20.00 per share in cash, without interest and net of applicable withholding taxes. The aggregate equity value of the transaction is approximately $2,800,000,000 (Two Billion Eight Hundred Million Dollars), calculated on the basis of 140,000,000 fully diluted shares of Luminex Holdings common stock (inclusive of all outstanding shares, in-the-money stock options, restricted stock units, and performance share units, in each case on a net-exercise or treasury-stock basis as set forth in the Merger Agreement). The aggregate transaction value exceeds the applicable threshold under the HSR Act and the rules promulgated thereunder.
The following summarizes the principal entities involved in the transaction:
Ardent Apex Holdings Inc. Apex Holdings is a Delaware corporation incorporated on March 5, 2025, for the purpose of facilitating the acquisition of Luminex Holdings. Apex Holdings is a wholly owned subsidiary of Ardent Capital Partners III LP ("Ardent Capital" or "Fund III"), a Delaware limited partnership headquartered at 399 Park Avenue, 42nd Floor, New York, NY 10022. Ardent Capital is a private equity fund (Fund III, vintage 2023, total committed capital of approximately $12.5 billion) managed by its general partner, Ardent Capital GP III LLC, a Delaware limited liability company. The co-founders and managing partners of Ardent Capital GP III LLC are Theodore Hargrove and Victoria Langford.
Ardent Apex Merger Sub Inc. Merger Sub is a Delaware corporation incorporated on March 7, 2025, and was formed exclusively to effect the Merger. Merger Sub is a wholly owned direct subsidiary of Apex Holdings and has conducted no business operations, has no employees, and has no material assets or liabilities other than those incident to its formation and the execution and delivery of the Merger Agreement. Merger Sub will cease to exist as a separate corporate entity upon consummation of the Merger.
Luminex Systems Holdings Inc. Luminex Holdings is a Delaware corporation incorporated on June 14, 2021, with operational headquarters at 2100 Reston Gateway Drive, Suite 800, Reston, Virginia 20191. Luminex Holdings serves as the U.S. intermediate holding company for Luminex Systems AG, a Swiss Aktiengesellschaft (stock corporation) organized and headquartered in Zürich, Switzerland. Through its subsidiaries and affiliated entities, Luminex is a cloud-based enterprise software-as-a-service ("SaaS") company offering enterprise resource planning ("ERP"), procurement automation, and supply-chain analytics solutions under the brand name "Luminex One." As of the date of this filing, Luminex has approximately 4,200 employees globally and reported total revenue of approximately $487 million for the fiscal year ended December 31, 2024.
III. Filing Fee
The applicable filing fee of $2,390,000 has been calculated based on the aggregate transaction value of $2,800,000,000 in accordance with the 2025 filing fee schedule established pursuant to Section 7A(b)(1)(A) of the Clayton Act, as amended by the Merger Filing Fee Modernization Act of 2022, and the schedule of fees published by the Federal Trade Commission and the Antitrust Division of the Department of Justice for the period beginning February 21, 2025. The aggregate transaction value of $2,800,000,000 falls within the fee tier applicable to transactions valued at more than $1,000,000,000 but less than $5,000,000,000.
Payment of the filing fee in the amount of $2,390,000 is being transmitted simultaneously with this filing via wire transfer to the designated account of the Federal Trade Commission in accordance with the current filing procedures specified by the Premerger Notification Office. A confirmation of the wire transfer is enclosed with the Notification Form.
IV. Identification of the Filing Person and Ultimate Parent Entity
4.1 Acquiring Person
The filing person is Ardent Apex Holdings Inc. The ultimate parent entity ("UPE") of the Acquiring Person, as determined in accordance with 16 C.F.R. § 801.1(a)(3), is Ardent Capital Partners III LP.
Filing Person:
Ardent Apex Holdings Inc. Entity Type: Corporation (Delaware) Employer Identification Number (EIN): 93-2178435
Address: c/o Ardent Capital Partners III LP, 399 Park Avenue, 42nd Floor, New York, NY 10022
Registered Agent in Delaware: National Registered Agents of Delaware, Inc., 160 Greentree Drive, Suite 101, Dover, DE 19904
Ultimate Parent Entity of the Acquiring Person:
Ardent Capital Partners III LP Entity Type: Limited Partnership (Delaware) Employer Identification Number (EIN): 87-3941026
Address: 399 Park Avenue, 42nd Floor, New York, NY 10022
General Partner: Ardent Capital GP III LLC (Delaware limited liability company)
4.2 Acquired Person
The acquired person is Luminex Systems Holdings Inc. The identification of the UPE of the Acquired Person, including the pre-transaction ownership structure, is set forth below.
Acquired Person:
Luminex Systems Holdings Inc. Entity Type: Corporation (Delaware) Employer Identification Number (EIN): 86-2547193
Address: 2100 Reston Gateway Drive, Suite 800, Reston, VA 20191
Registered Agent in Delaware: Capitol Corporate Services, Inc., 1675 South Ashbury Asset Advisors, Suite B, Dover, DE 19901
As of the date hereof, the pre-transaction ownership structure of Luminex Holdings is as follows:
• 52% — Ridgeline Growth Equity Fund II LP, a Delaware limited partnership headquartered at 200 Clarendon Street, 52nd Floor, Boston, MA 02116 (Managing Partner: Jonathan Ashford);
• 20% — Meridian Venture Partners IV LP, a Delaware limited partnership headquartered at 600 Montgomery Street, Suite 2800, San Francisco, CA 94111 (Managing Partner: Claire Fujimoto); and
• 28% — Management and employees of Luminex Holdings and its subsidiaries, held through various individual holdings and participation in equity incentive plans.
The determination of the UPE of the Acquired Person for purposes of the HSR Act is set forth in the Notification Form filed by the acquired person and its counsel.
V. Identification of Entities Within the Acquiring Person
The following entities are included within the "person" of the Acquiring Person for purposes of the HSR Act and the HSR Rules (i.e., the UPE and all entities that the UPE controls within the meaning of 16 C.F.R. § 801.1(b)):
1. Ardent Capital Partners III LP — Ultimate Parent Entity (Delaware limited partnership; EIN: 87-3941026; 399 Park Avenue, 42nd Floor, New York, NY 10022).
2. Ardent Capital GP III LLC — General partner of the UPE (Delaware limited liability company; general partner and sole manager of Ardent Capital Partners III LP).
3. Ardent Apex Holdings Inc. — Intermediate holding company and filing person (Delaware corporation; EIN: 93-2178435; wholly owned subsidiary of Ardent Capital Partners III LP).
4. Ardent Apex Merger Sub Inc. — Merger subsidiary (Delaware corporation; EIN: 93-2178502; wholly owned subsidiary of Ardent Apex Holdings Inc.; formed exclusively to effect the Merger).
In addition to the foregoing, the filing person wishes to bring to the attention of the Staff the following entity under common control with the Acquiring Person:
5. Vectis Solutions LLC — A Delaware limited liability company (EIN: 82-4910337), headquartered at 4000 Shoreline Court, Suite 300, South San Francisco, CA 94080 (Chief Executive Officer: Michael Parekh). Vectis Solutions LLC is a portfolio company of Ardent Capital Partners II LP, a prior fund in the Ardent Capital fund family. Ardent Capital Partners III LP, through its general partner Ardent Capital GP III LLC and the common management and control exercised by the Ardent Capital platform, is an associate of, and exercises common control over, Vectis Solutions LLC for purposes of the HSR Act.
Vectis Solutions LLC operates in the procurement-automation SaaS market, offering a cloud-based procurement platform to mid-market and enterprise customers. For the fiscal year ended December 31, 2024, Vectis reported total revenue of approximately $68 million and held an estimated market share of approximately 7% in the procurement-automation SaaS segment (as further described in Section VI below).
The filing person has disclosed Vectis Solutions LLC as an associate or entity under common control with the Acquiring Person for purposes of the overlap analysis required under Item 7 of the Notification Form. An organizational chart of the Acquiring Person, including the relationship among the Ardent Capital funds and Vectis Solutions LLC, is enclosed with the Notification Form.
VI. Description of the Relevant Product and Geographic Markets
The filing person provides the following information regarding the relevant product and geographic markets potentially affected by the transaction, for the convenience of the Staff in its review.
Product Market. The primary product market relevant to the transaction is procurement-automation SaaS (software-as-a-service), which constitutes a distinct segment within the broader enterprise software and ERP market. Procurement-automation SaaS platforms enable enterprise customers to automate and manage procurement workflows, including sourcing, requisition-to-pay, contract management, supplier management, spend analytics, and related functions, through cloud-delivered software applications typically offered on a subscription basis.
Luminex Systems Holdings Inc., through its operating subsidiaries, operates the "Luminex One" platform, which includes integrated cloud-based ERP, procurement automation, and supply-chain analytics capabilities. Based on publicly available data and the filing person's internal estimates, Luminex holds an estimated market share of approximately 18% in the procurement-automation SaaS segment in the United States.
Vectis Solutions LLC, a portfolio company controlled by the Acquiring Person's UPE (as described in Section V above), also operates in the procurement-automation SaaS segment, offering a cloud-based procurement platform primarily to mid-market and enterprise customers in the United States. Vectis holds an estimated market share of approximately 7% in the procurement-automation SaaS segment in the United States.
On a combined post-transaction basis, the Acquiring Person's entities (including Luminex Holdings and Vectis Solutions LLC) would hold an estimated combined market share of approximately 25% in the procurement-automation SaaS segment in the United States.
Geographic Market. The relevant geographic market includes the United States, which is the principal market in which both Luminex and Vectis generate the substantial majority of their revenues. For the fiscal year ended December 31, 2024, Luminex generated approximately $194.8 million in U.S. revenue (representing approximately 40% of its total global revenue of $487 million), and Vectis generated approximately $68 million in revenue, substantially all of which was derived from U.S.-based customers. The filing person notes that, given the global nature of SaaS deployment and the ability of customers to access cloud-based software platforms from any location, the relevant geographic market may also be characterized as worldwide for certain analytical purposes.
The filing person acknowledges the horizontal overlap between Luminex and Vectis in the procurement-automation SaaS segment and is prepared to cooperate fully with Commission staff in any review of the competitive effects of the proposed transaction. The filing person notes that the procurement-automation SaaS market remains highly competitive, with numerous well-capitalized competitors including, among others, Ostrander Industries (Sundial Corporation), Pemberton & Co. (a subsidiary of Ostrander Equity Partners portfolio companies), Meridian Corporation, Cobalt Ridge Holdings, and Cobalt Ridge Industries.
VII. Transaction Structure and Timing
The transaction will be effected as a single-step reverse triangular merger under the DGCL, in which Merger Sub will merge with and into Luminex Holdings, with Luminex Holdings continuing as the surviving corporation and a wholly owned subsidiary of Apex Holdings.
The Merger Agreement was executed on March 24, 2025. Consummation of the Merger is subject to the satisfaction or waiver of customary closing conditions, including, without limitation:
(a) the expiration or early termination of the applicable waiting period under the HSR Act;
(b) the receipt of approval from the stockholders of Luminex Holdings (by the affirmative vote of the holders of a majority of the outstanding shares of Luminex Holdings common stock entitled to vote thereon);
(c) the absence of any law, order, injunction, or decree that prohibits, restrains, or makes illegal the consummation of the Merger;
(d) the accuracy of the representations and warranties of the parties (subject to customary materiality and material adverse effect qualifiers);
(e) compliance with the covenants and agreements of the parties; and
(f) the receipt of certain other governmental and regulatory approvals, including, to the extent required, the completion of the CFIUS review process.
The Merger Agreement provides for an outside date (the "Outside Date") of September 10, 2025, which may be extended by either party for up to three (3) additional months (to December 10, 2025) if, as of the initial Outside Date, the sole closing condition that has not been satisfied or waived is the receipt of required regulatory approvals (including expiration or termination of the HSR Act waiting period or the completion of any Second Request process). The parties currently estimate that closing of the Merger will occur during the third quarter of 2025 (July–August 2025), subject to the timely receipt of all necessary regulatory approvals.
VIII. Financing
The aggregate consideration payable in connection with the Merger (including the equity consideration, the repayment of existing indebtedness of Luminex Holdings, and the payment of transaction fees and expenses) will be financed through the following sources:
1. Senior Secured Credit Facility: $1,400,000,000. Consisting of (i) a first lien senior secured Term Loan B facility in the aggregate principal amount of $1,200,000,000 and (ii) a first lien senior secured revolving credit facility in the aggregate principal amount of $200,000,000 (the revolving credit facility expected to be undrawn at closing). The senior secured credit facility is being arranged by Stonebridge Credit Partners LLC as lead arranger and administrative agent, with Birchwood Capital Finance LLC and Ironvale Credit Fund III LP serving as co-lenders.
2. Subordinated Mezzanine Notes: $300,000,000. Subordinated unsecured mezzanine notes to be issued to Crestline Mezzanine Partners II LP.
3. Sponsor Equity Contribution: $695,980,000. Cash equity contribution from Ardent Capital Partners III LP, the UPE of the Acquiring Person.
4. Co-Investment Equity: $300,000,000. Consisting of (i) $200,000,000 from Northvale Sovereign Holdings Ltd. and (ii) $100,000,000 from Summit Ridge Capital Partners LP, in each case pursuant to co-investment arrangements with Ardent Capital Partners III LP.
5. Management Rollover Equity: Approximately $405,020,000. Certain members of Luminex Holdings' senior management team will roll over a portion of their existing equity holdings into equity interests in Apex Holdings (or a parent entity thereof) in connection with the closing of the Merger, representing aggregate rollover equity of approximately $405,020,000.
Committed financing letters with respect to the debt financing described above have been obtained and are referenced in the Merger Agreement. The filing person confirms that the aggregate sources of financing are sufficient to fund the total consideration payable in connection with the Merger.
IX. Other Regulatory Filings
In addition to this filing under the HSR Act, the proposed transaction is subject to, or the parties have elected to make, the following regulatory filings and notifications:
1. Committee on Foreign Investment in the United States (CFIUS). The parties intend to file a voluntary joint notice with CFIUS on April 4, 2025 (anticipated Tracking No. CFIUS-2025-0087). The filing is being made in light of Luminex Holdings' existing contracts with certain U.S. Government agencies, including the Department of Defense, the Department of Energy, and the General Services Administration, and the parties' desire to obtain CFIUS clearance as a condition to closing.
2. Swiss Competition Commission / SECO. A notification under Swiss competition law is being filed with the Secretariat of the Competition Commission (Wettbewerbskommission) / State Secretariat for Economic Affairs (SECO) on April 7, 2025 (anticipated File No. 32-0973), in connection with the acquisition of Luminex Systems AG.
3. German Federal Cartel Office (Bundeskartellamt). A merger control notification is being filed with the German Federal Cartel Office on April 9, 2025 (anticipated File No. B6-34/25), in connection with the parties' activities in Germany.
4. EU Foreign Subsidies Regulation. A notification under Regulation (EU) 2022/2560 of the European Parliament and of the Council of 14 December 2022 on foreign subsidies distorting the internal market (the "Foreign Subsidies Regulation") is being filed with the European Commission on April 11, 2025 (anticipated Case No. FSR.M.2025-0412).
The filing person will promptly inform the Staff of any material developments with respect to the foregoing regulatory filings.
X. Voluntary Submissions and Item 4(c)/4(d) Documents
Enclosed with the Notification Form are copies of all documents required to be submitted under Items 4(c) and 4(d) of the Notification Form. These documents include, without limitation:
(a) the Agreement and Plan of Merger, dated March 24, 2025, among Ardent Apex Holdings Inc., Ardent Apex Merger Sub Inc., and Luminex Systems Holdings Inc. (including all schedules, annexes, and exhibits thereto);
(b) all studies, surveys, analyses, and reports that were prepared by or for any officer(s) or director(s) of the Acquiring Person (or, to the extent within the filing person's possession, custody, or control, of the Target) for the purpose of evaluating or analyzing the proposed transaction with respect to market shares, competition, competitors, markets, potential for sales growth, or expansion into product or geographic markets; and
(c) such other documents as are responsive to Items 4(c) and 4(d) of the Notification Form.
Pursuant to the confidentiality provisions of 16 C.F.R. § 803.20, the filing person respectfully requests that all materials submitted in connection with this filing, including the Notification Form, this cover letter, and all enclosures and attachments thereto, be treated as confidential and exempt from public disclosure under the Freedom of Information Act, 5 U.S.C. § 552, and any applicable state freedom-of-information or open-records laws. The materials submitted herewith contain confidential business information, proprietary financial data, and trade secrets, the disclosure of which could cause competitive harm to the filing person and the other parties to the transaction.
XI. Request for Early Termination
The filing person respectfully requests early termination of the initial thirty-day waiting period under Section 7A(b)(1)(B) of the Clayton Act, 15 U.S.C. § 18a(b)(1)(B), to the extent that the Commission determines, in its discretion, that early termination is appropriate. The filing person believes that the proposed transaction does not raise competitive concerns that would warrant the full statutory waiting period and that the information provided in the Notification Form and this cover letter is sufficient to enable the Staff to complete its initial review on an expedited basis.
XII. Contact Information for Communications
All communications regarding this filing and the Notification Form should be directed to:
Elaine Forsythe Partner, Antitrust & Competition Calderwood & Harkness LLP 7 Times Square New York, NY 10036 Telephone: (212) 558-4127
Email: eforsythe@calderwoodharkness.com
With a copy to:
James Prentice Partner, Mergers & Acquisitions Calderwood & Harkness LLP 7 Times Square New York, NY 10036 Telephone: (212) 558-4350
Email: jprentice@calderwoodharkness.com
Counsel for the Acquired Person:
Patricia Okonkwo Partner Caldwell, Raines & Sheppard LLP 51 West 52nd Street New York, NY 10019 Telephone: (212) 403-1215
Email: pokonkwo@caldwellraines.com
Gregory Lam Partner, Antitrust Caldwell, Raines & Sheppard LLP 51 West 52nd Street New York, NY 10019 Telephone: (212) 403-1342
Email: glam@caldwellraines.com
XIII. Enclosures
The following documents are enclosed with and accompany this filing:
1. Notification and Report Form (completed), filed on behalf of Ardent Apex Holdings Inc. as the Acquiring Person.
2. Filing fee payment confirmation in the amount of $2,390,000 (wire transfer confirmation).
3. Agreement and Plan of Merger, dated March 24, 2025, among Ardent Apex Holdings Inc., Ardent Apex Merger Sub Inc., and Luminex Systems Holdings Inc. (including all schedules, annexes, and exhibits thereto).
4. Item 4(c) and 4(d) documents, as described in Section X above.
5. Organizational charts of (a) the Acquiring Person, including the relationship among Ardent Capital Partners III LP, Ardent Capital GP III LLC, Ardent Apex Holdings Inc., Ardent Apex Merger Sub Inc., and Vectis Solutions LLC; and (b) the Acquired Person, including the relationship between Luminex Systems Holdings Inc. and Luminex Systems AG.
6. Annual reports, audited financial statements, and other financial information as required by the Notification Form for each of the Acquiring Person and its controlled entities.
We trust that the foregoing information and the enclosed Notification Form and supporting documents are sufficient for the Staff's initial review of the proposed transaction. Should Commission staff require any additional information or have any questions regarding this filing, the undersigned is available at the Staff's convenience and will endeavor to respond promptly to any inquiries. The filing person is committed to cooperating fully with the Commission in its review of the transaction.
We appreciate the attention of the Premerger Notification Office to this matter.
Respectfully submitted,
CALDERWOOD & HARKNESS LLP
By: ________
Elaine Forsythe Partner, Antitrust & Competition Calderwood & Harkness LLP 7 Times Square New York, NY 10036 Telephone: (212) 558-4127
Email: eforsythe@calderwoodharkness.com
cc: (via email)
James Prentice, Partner, Calderwood & Harkness LLP
Sandra Tung, Counsel, Calderwood & Harkness LLP
Ryan Kowalski, Associate, Calderwood & Harkness LLP
Theodore Hargrove, Co-Founder & Managing Partner, Ardent Capital Partners III LP
Victoria Langford, Co-Founder & Managing Partner, Ardent Capital Partners III LP
Patricia Okonkwo, Partner, Caldwell, Raines & Sheppard LLP (courtesy copy)

CONFIDENTIAL — SUBJECT TO 16 C.F.R. § 803.20

BY HAND DELIVERY AND ELECTRONIC FILING

CALDERWOOD & HARKNESS LLP

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