Stratum Holdings SRTM

Stratum Holdings files S-1/A with exhibits.

Securities offering (amended)

Form
S-1/A
Filed
Importance
Routine
  1. Exhibits include multiple stock split amendments.
  2. Includes certificates of designations for preferred stock.
  3. Contains security agreements and promissory notes.

Written from the S-1/A on EDGAR. Check the filing before you rely on it.

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What changed since the last draft

20 changes since the S-1 filed Oct 29, 2026

Compared with the S-1 0001213900-26-113906, filed Oct 29, 2026.

  1. Removed Offering terms

    Exchange: not stated

    Exchange now not stated; the earlier draft had Nasdaq Capital Market.

    From the filings

    Before

    Our common stock is listed on the Nasdaq Capital Market under the symbol
  2. Removed Offering terms

    Ticker reserved: not stated

    Ticker reserved now not stated; the earlier draft had SRTM.

    From the filings

    Before

    Our common stock is listed on the Nasdaq Capital Market under the symbol "SRTM."
  3. Removed Share classes and governance

    Controlled company

    No longer mentioned in this draft.

    From the filings

    Before

    We are also a "controlled company"
  4. Removed Sections

    Section removed: Prospectus summary

    This summary highlights selected information

    From the filings

    Before

    This summary highlights selected information
  5. Removed Sections

    Section removed: Risk factors

    An investment in our securities involves a

    From the filings

    Before

    An investment in our securities involves a
  6. Removed Sections

    Section removed: Forward-looking statements

    This prospectus, any accompanying prospectus supplement

    From the filings

    Before

    This prospectus, any accompanying prospectus supplement
  7. Removed Sections

    Section removed: Use of proceeds

    This prospectus relates to shares of our common

    From the filings

    Before

    This prospectus relates to shares of our common
  8. Removed Sections

    Section removed: Dividend policy

    We have not declared nor paid any cash dividends

    From the filings

    Before

    We have not declared nor paid any cash dividends
  9. Removed Sections

    Section removed: The Purchase Agreement

    On September 18, 2025, we entered into the Purchase

    From the filings

    Before

    On September 18, 2025, we entered into the Purchase
  10. Removed Sections

    Section removed: Selling Stockholder

    This prospectus relates to the possible resale

    From the filings

    Before

    This prospectus relates to the possible resale
  11. Removed Sections

    Section removed: Plan of distribution

    We are registering up to 69,718,800 shares

    From the filings

    Before

    We are registering up to 69,718,800 shares
  12. Removed Sections

    Section removed: Description of the securities

    10-K for the year ended December 31, 2025 filed with the SEC on June 4, 2026.

    From the filings

    Before

    10-K for the year ended December 31, 2025 filed with the SEC on June 4, 2026.

and 8 more, in the redline below

Show the redline

Section by section. Added words and removed words against the earlier filing.

Cover page 96 changes

ea0309825-s1_stratum.htm

Commission on October 29, 2026

Registration No. 333-

WASHINGTON, D.C. 20549

REGISTRATION STATEMENT

ea0310268-s1a1_stratum.htm

AMENDMENT NO. 1 TO FORM S-1

As filed with the U.S. Securities and Exchange Commission on October 30, 2026

SECURITIES AND EXCHANGE COMMISSION

REGISTRATION STATEMENT UNDER

1 unchanged paragraph

Stratum Holdings Corp.

(Exact name of registrant as specified in its charter)

(State or other jurisdiction of

1 unchanged paragraph

(Primary Standard Industrial

2 unchanged paragraphs

Celebration, FL 34747

(Address, including zip code, and telephone number,

Chief Executive Officer

Stratum Holdings Corp.

Celebration, FL 34747

(Names, address, including zip code, and telephone

Louis A. Bevilacqua,

800 Connecticut Avenue,

Washington, DC 20006

Approximate date of commencement of proposed

If any of the securities being registered on this

If this Form is filed to register additional securities

If this Form is a post-effective amendment filed

pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed

Indicate by check mark whether the registrant

See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company,"

and "emerging growth company" in Rule 12b-2 of the Exchange Act.

1420 Celebration Blvd., 2nd Floor

including zip code, and telephone number, including area code, of registrant's principal executive offices)

1420 Celebration Blvd., 2nd Floor

address, including zip code, and telephone number, including area code, of agent for service)

Connecticut Avenue, NW, Suite 300

date of commencement of proposed sale to the public: As soon as practicable after this Registration Statement becomes effective.

any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 check the following box.

Securities Act of 1933 check the following box. ☒

this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐ this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the

pursuant to Rule 462(d) under the Securities Act check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐ this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the

Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐ by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

4 unchanged paragraphs

If an emerging growth company, indicate by check

Section 8(a) of the Securities Act of 1933 or until the registration statement shall become effective on such date as the Commission, acting pursuant to such Section 8(a), may determine.

information in this prospectus is not complete and may be changed. These securities may not be sold until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting offers to buy these securities in any state where the offer or sale is not permitted.

PRELIMINARY PROSPECTUS

SUBJECT TO COMPLETION, DATED OCTOBER 29, 2026

Up to 69,718,800 Shares of Common Stock

This prospectus relates to the sale of up to 69,718,800

shares of our common stock that we may issue and sell to SZOP Opportunities I LLC, or the Selling Stockholder, pursuant to an amended and restated equity purchase facility agreement that we entered into with the Selling Stockholder on September 18, 2025, which we refer to as the Purchase Agreement. Please see " The Purchase Agreement " for a description of the Purchase Agreement and " Selling

Stockholder " for additional information regarding the Selling Stockholder.

The shares offered by this prospectus are in addition

to the shares registered for resale under our registration statements on Form S-1 (File Nos. 333-289503 and 333-290510). The number of shares registered under this prospectus has been calculated to permit aggregate sales to the Selling Stockholder of up to approximately

$30,000,000, assuming a purchase price of $0.4303 per share. The actual number of shares we sell under the Purchase Agreement, and the proceeds we receive, will depend on the market price of our common stock at the time of each sale and may be greater or less than these amounts.

We are not selling any securities under this prospectus

and will not receive any of the proceeds from the sale of shares of common stock by the Selling Stockholder. However, we may receive approximately

$30,000,000 in aggregate gross proceeds under the Purchase Agreement from sales of our common stock that we may elect to make to the Selling

Stockholder pursuant to the Purchase Agreement after the date of this prospectus.

The Selling Stockholder may sell or otherwise

dispose of the shares of common stock described in this prospectus in a number of different ways and at varying prices. See " Plan of Distribution " for more information about how the Selling Stockholder may sell or otherwise dispose of the shares of common stock being registered pursuant to this prospectus. The Selling Stockholder is an "underwriter" within the meaning of Section 2(a)(11)

of the Securities Act of 1933, as amended, or the Securities Act. The Selling Stockholder will pay all brokerage fees and commissions and similar expenses. We will pay the expenses (except brokerage fees and commissions and similar expenses) incurred in registering the shares, including legal and accounting fees. See " Plan of Distribution ."

Our common stock is listed on the Nasdaq Capital Market under the symbol

"SRTM." On October 27, 2026, the closing price of our common stock on the Nasdaq Capital Market was $0.2475.

We are an "emerging growth company"

and a "smaller reporting company" under federal securities laws and have elected to comply with reduced public company reporting requirements. See " Prospectus Summary-Implications of Being an Emerging Growth Company and a Smaller Reporting Company "

for more information.

We are also a "controlled company"

as defined under the corporate governance rules of The Nasdaq Stock Market LLC, or Nasdaq, because our founder, Joseph La Rosa, controls approximately 93% of the total voting power of our outstanding voting stock. As a "controlled company," we are permitted to elect to rely on certain exemptions from Nasdaq's corporate governance rules. We do not plan to rely on these exemptions, but we may elect to do so in the future. See " Prospectus Summary-Implications of Being a Controlled Company " for more information.

Investing in our securities involves a high

degree of risk. You should read " Risk Factors " beginning on page 8 of this prospectus and the reports we file with the Securities and Exchange Commission incorporated by reference in this prospectus to read about factors to consider before purchasing our securities.

Neither the Securities and Exchange Commission

nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete.

Any representation to the contrary is a criminal offense.

The date of this prospectus is ,

Cautionary Note Regarding Forward-Looking Statements

The Purchase Agreement

Plan of Distribution

Description of Capital Stock

Where You Can Find More Information

and 16 more changes in the filing

Exhibits 30 changes

1 unchanged paragraph

Consent of Marcum LLP

Consent of Fennemore Craig P.C. (included in Exhibit 5.1)

Power of Attorney (included on the signature page of this registration statement) Exhibit Filing Fees * To be filed by amendment.

Executive compensation plan or arrangement.

All financial statement schedules are omitted

Form of Asset Contribution and Securities Purchase Agreement, dated September 30, 2026, among Stratum Holding Corp., the Contributor named therein and the Buyers named therein (incorporated by reference to Exhibit 10.3 to the Current Report on Form 8-K filed on October 1, 2026) II- 1 10.2 Form of Master Lease Agreement, dated September 30, 2026, between Stratum Holdings Corp. and the Lessee named therein (incorporated by reference to Exhibit 10.4 to the Current Report on Form 8-K filed on October 1, 2026) 10.3 Amended and Restated Equity Purchase Facility Agreement, dated September 18, 2025, between Stratum Holdings Corp. and SZOP Opportunities I LLC (incorporated by reference to Exhibit 10.200 to the Registration Statement on Form S-1 filed on September 30, 2025) 10.4 Form of Securities Purchase Agreement, dated September 15, 2026, between Stratum Holdings Corp. and the Investor named therein (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on September 16, 2026) 10.5 Securities Purchase Agreement, dated November 12, 2025, among Stratum Holdings Corp. and the Investors named therein (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on November 13, 2025) 10.6 Amendment to Securities Purchase Agreement, dated January 9, 2026, among Stratum Holdings Corp. and the Investors named therein (incorporated by reference to Exhibit 10.149 to the Annual Report on Form 10-K filed on June 4, 2026) 10.7 Amendment to Securities Purchase Agreement, dated March 24, 2026, among Stratum Holdings Corp. and the Investors named therein (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on March 25, 2026) 10.8 Senior Secured Convertible Promissory Note issued on January 8, 2026 (incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed on January 9, 2026) 10.9 Form of Security and Pledge Agreement, dated November 12, 2025, between Stratum Holdings Corp. and the Collateral Agent named therein (incorporated by reference to Exhibit 10.3 to the Current Report on Form 8-K filed on November 13, 2025) 10.10 Intellectual Property Security Agreement, dated January 8, 2026, between Stratum Holdings Corp. and the Collateral Agent named therein (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on January 9, 2026) 10.11 Form of Account Control Agreement, dated November 12, 2025, among Stratum Holdings Corp., the Collateral Agent named therein BitGo Prime LLC and BitGo Trust Company, Inc. (incorporated by reference to Exhibit 10.4 to the Current Report on Form 8-K filed on November 13, 2025) 10.12 Form of Guaranty, dated November 12, 2025, among the Guarantors named therein and the Collateral Agent named therein (incorporated by reference to Exhibit 10.6 to the Current Report on Form 8-K filed on November 13, 2025) 10.13 Form of LR Agent Advance Commission Purchase Agreement (incorporated by reference to Exhibit 10.15 to the Quarterly Report on Form 10-Q filed on May 29, 2025) 10.14 Franchise Disclosure Document of La Rosa Franchising, LLC, dated March 2, 2020, and template Franchise Agreement (incorporated by reference to Exhibit 10.28 to the Registration Statement on Form S-1 filed on June 14, 2022) 10.15 Office Service Agreement, dated June 30, 2025, between Celebration Corporate Center, LLC and Stratum Holdings Corp. (incorporated by reference to Exhibit 10.33 to the Quarterly Report on Form 10-Q filed on November 19, 2025) 10.16 Form of Shopping Center Lease Agreement, dated September 9, 2016, between Deno P. Dikeou and La Rosa Realty, LLC (626 N. Alafaya Trail, Orlando, Florida) (incorporated by reference to Exhibit 10.132 to the Annual Report on Form 10-K filed on April 16, 2024) II- 5 10.17 Form of Lease Agreement, dated March 22, 2017, between La Rosa Realty, LLC and Narcoossee Acquisitions, LLC (8236 Lee Vista Blvd, Orlando, Florida) (incorporated by reference to Exhibit 10.135 to the Annual Report on Form 10-K filed on April 16, 2024) 10.18 Form of First Amendment to Lease Agreement, dated April 1, 2017, between La Rosa Realty, LLC and Narcoossee Acquisitions, LLC (8236 Lee Vista Blvd, Orlando, Florida) (incorporated by reference to Exhibit 10.136 to the Annual Report on Form 10-K filed on April 16, 2024) II- 2 10.19 Renewal Letter, dated March 14, 2022, between La Rosa Realty, LLC and Narcoossee Acquisitions, LLC (8236 Lee Vista Blvd, Orlando, Florida) (incorporated by reference to Exhibit 10.140 to the Annual Report on Form 10-K filed on April 16, 2024) 10.20 Lease Agreement, dated August 2, 2018, between Crosscreek Village Station LLC and La Rosa Realty, LLC (Crosscreek Village Shopping Center, St. Cloud Florida) (incorporated by reference to Exhibit 10.30 to the Registration Statement on Form S-1 filed on June 14, 2022) 10.21 Form of Lease Agreement, dated October 1, 2020, between Baymeadows Properties LLC and La Rosa Realty North Florida LLC (9250 Baymeadows Road, Jacksonville, Florida) (incorporated by reference to Exhibit 10.129 to the Annual Report on Form 10-K filed on April 16, 2024) 10.22 Modification and Ratification of Lease Agreement, dated October 9, 2025, between Baymeadows Properties LLC and La Rosa Realty North Florida LLC (9250 Baymeadows Road, Jacksonville, Florida) (incorporated by reference to Exhibit 10.72 to the Annual Report on Form 10-K filed on June 4, 2026) 10.23 Form of Office Lease Agreement, dated October 6, 2020, between Platinum Eagles 2011, LLC and La Rosa Realty Success LLC (2200 E. Semoran Blvd, Apopka, Florida) (incorporated by reference to Exhibit 10.161 to the Annual Report on Form 10-K filed on June 4, 2026) 10.24 Form of First Addendum to Lease Agreement, between Platinum Eagles 2011 LLC and La Rosa Realty Success LLC (2200 E. Semoran Blvd, Apopka, Florida) (incorporated by reference to Exhibit 10.162 to the Annual Report on Form 10-K filed on June 4, 2026) 10.25 Form of Commercial Lease, dated March 8, 2021, between TMT Properties, Inc. and Baxpi Holdings LLC (2700 West Cypress Creek Road, Fort Lauderdale, FL) (incorporated by reference to Exhibit 10.157 to the Annual Report on Form 10-K filed on June 4, 2026) 10.26 First Amendment to Lease Agreement, dated April 4, 2025, between P S Property Investments, LLC and Baxpi Holdings LLC (2700 West Cypress Creek Road, Fort Lauderdale, FL) (incorporated by reference to Exhibit 10.158 to the Annual Report on Form 10-K filed on June 4, 2026) 10.27 Second Amendment to Lease Agreement, dated May 7, 2025, between P S Property Investments, LLC and Stratum Holdings Corp. (2700 West Cypress Creek Road, Fort Lauderdale, FL) (incorporated by reference to Exhibit 10.159 to the Annual Report on Form 10-K filed on June 4, 2026) 10.28 Form of Amendment to Lease, dated June 18, 2021, between Epiphany Property Holdings, LLC and Executive Group, Inc. (1805 W. Colonial Dr., Orlando, Florida) (incorporated by reference to Exhibit 10.138 to the Annual Report on Form 10-K filed on April 16, 2024) 10.29 Form of Commercial Lease Agreement, dated November 4, 2021, between Hayward Area Historical Society and Yeimalis Acevedo-Rasmussen (22392 Foothill Blvd., Hayward, CA) (incorporated by reference to Exhibit 10.120 to the Annual Report on Form 10-K filed on April 16, 2024) 10.30 Form of Commercial Office Lease, dated April 20, 2022, between Colonial Square properties LLC and La Rosa Realty Lakeland LLC (123 South Tennessee Avenue, Lakeland, FL) (incorporated by reference to Exhibit 10.156 to the Annual Report on Form 10-K filed on June 4, 2026) 10.31 Form of Lease Agreement, dated July 1, 2023, between 1146 Vision Holdings LLC and La Rosa Realty LLC (1420 Celebration Blvd, Celebration, FL) (incorporated by reference to Exhibit 10.121 to the Annual Report on Form 10-K filed on April 16, 2024) 10.32 Form of Commercial Sublease Agreement, dated January 1, 2024, between La Rosa Realty Georgia LLC and Carmen Delgado (175 John W. Morrow Jr. Pkwy, Gainsville, Georgia) (incorporated by reference to Exhibit 10.133 to the Annual Report on Form 10-K filed on April 16, 2024) II- 6 10.33 Form of Lease Agreement, dated February 8, 2024, between G&L Mast LLC and La Rosa Realty LLC (3407 Magic Oak Lane, Sarasota, Florida) (incorporated by reference to Exhibit 10.122 to the Annual Report on Form 10-K filed on April 16, 2024) 10.34 Form of Lease Extension Agreement, dated February 8, 2026, between G&L Mast LLC and La Rosa Realty LLC (3407 Magic Oak Lane, Sarasota, Florida) (incorporated by reference to Exhibit 10.66 to the Annual Report n Form 10-K filed on June 4, 2026) II- 3 10.35 Form of Commercial Lease Agreement, dated March 1, 2024, between Holder Investments, Inc. and La Rosa Realty, LLC (1165 E Plant St., Winter Garden, Florida) (incorporated by reference to Exhibit 10.125 to the Annual Report on Form 10-K filed on April 16, 2024) 10.36 Form of Lease Agreement, dated April 2, 2024, between La Rosa Realty Georgia LLC and American Capital Properties, LLC (3483 Satellite Blvd, Duluth, Georgia) (incorporated by reference to Exhibit 10.124 to the Annual Report on Form 10-K filed on April 16, 2024) 10.37 Form of Lease Agreement Renewal, dated May 22, 2024, between Office Rentals 506 LLC and LaRosa Realty Jacksonville LLC (12627 San Jose Blvd, Jacksonville, FL) (incorporated by reference to Exhibit 10.160 to the Annual Report on Form 10-K filed on June 4, 2026) 10.38 Form of Commercial Lease, dated December 13, 2024, between Chancellor Square Acquisition LLC and La Rosa Holdings LLC (2400 Sand Lake Road, Orlando, FL) (incorporated by reference to Exhibit 10.165 to the Annual Report on Form 10-K filed on June 4, 2026) 10.39 Form of Lease Agreement, dated March 18, 2025, between JLR Holdings LLC and BF Prime LLC (Ave. Los Gobernadores, Esq. Calle Dalia, Isla Verde Carolina, PR) (incorporated by reference to Exhibit 10.166 to the Annual Report on Form 10-K filed on June 4, 2026) 10.40 Commercial Lease Agreement, dated August 29, 2025, between Homespot, Inc., and BF Prime LLC (incorporated by reference to Exhibit 10.34 of the Company's Quarterly Report on Form 10-Q filed with the SEC as of November 19, 2025).

Commercial Lease, dated November 1, 2025, between Bard Properties LLC and Stratum Holdings Corp. (650 Pope Avenue NW, Winter Haven, FL) (incorporated by reference to Exhibit 10.155 to the Annual Report on Form 10-K filed on June 4, 2026) 10.42 Form of Commercial Lease Agreement, dated December 1, 2025, between Horeb Legacy Investments LLC and La Rosa Realty Kissimmee (3040 Loopdale Lane, Kissimmee, FL) (incorporated by reference to Exhibit 10.164 to the Annual Report on Form 10-K filed on June 4, 2026) 10.43 Trademark and Brand Licensing Agreement, dated February 4, 2026, between Stratum Holdings Corp. and Horeb Kissimmee Realty LLC (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed on February 10, 2026) 10.44 Form of Mediated Settlement Agreement, dated October 18, 2024, among Stratum Holdings Corp., Nona Legacy Powered by La Rosa Realty, Inc., Joseph La Rosa, and Norkis Fernandes (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on October 24, 2024) 10.45 Form of Stock Pledge Agreement, dated October 18, 2024, between Stratum Holdings Corp. and Norkis Fernandez (incorporated by reference to Exhibit 10.3 to the Current Report on Form 8-K filed on October 24, 2024) 10.46 Settlement Agreement, dated February 11, 2026, among Stratum Holdings Corp., La Rosa Realty Lakeland LLC, Joseph La Rosa and Ricky Miller (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed on February 18, 2026) 10.47 Membership Interest Purchase Agreement, dated February 11, 2026, among Stratum Holdings Corp., Ricky Miller and La Rosa Realty Lakeland LLC (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on February 18, 2026) 10.48 Pledge Agreement, dated February 11, 2026, between Stratum Holdings Corp. and Ricky Miller (incorporated by reference to Exhibit 10.3 to the Current Report on Form 8-K filed on February 18, 2026) II- 7 10.49 Settlement Agreement, dated April 3, 2026, among Stratum Holdings Corp., La Rosa Realty Orlando LLC, Reinaldo Zapata and Viviana Figueroa (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on April 6, 2026) 10.50 Form of Settlement Agreement, dated September 30, 2026, between Stratum Holdings Corp. and the Holder named therein (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed on February 24, October 1, 2026) 10.51 Redemption Agreement, dated November 12, 2025, between Stratum Holdings Corp. and Joseph La Rosa (incorporated by reference to Exhibit 10.7 to the Current Report on Form 8-K filed on November 13, 2025) II- 4 10.52 Side Agreement, dated September 30, 2026, between Stratum Holdings Corp. and Joseph La Rosa (incorporated by reference to Exhibit 10.9 to the Current Report on Form 8-K filed on October 1, 2026) 10.53 Employment Agreement, dated October 1, 2026, between Stratum Holdings Corp. and Nicholas Adler (incorporated by reference to Exhibit 10.11 to the Current Report on Form 8-K filed on October 1, 2026) 10.54 Amended and Restated Employment Agreement, dated October 1, 2026, between Stratum Holdings Corp. and Joseph La Rosa (incorporated by reference to Exhibit 10.7 to the Current Report on Form 8-K filed on October 1, 2026) 10.55 Employment Agreement, dated January 31, 2024, between Stratum Holdings Corp. and Deana La Rosa (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on February 1, 2024) 10.56 Amendment to Employment Agreement, dated February 19, 2026, between Stratum Holding Corp. and Deana La Rosa (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed on February 24, 2026) 10.57 Amendment to Employment Agreement, dated September 30, 2026, between Stratum Holdings Corp. and Deana La Rosa (incorporated by reference to Exhibit 10.10 to the Current Report on Form 8-K filed on October 1, 2026) 10.58 Employment Agreement, dated January 10, 2022, between Stratum Holdings Corp. and Alex Santos (incorporated by reference to Exhibit 10.3 to the Annual Report on Form 10-K filed on April 16, 2024) 10.59 Board of Directors Agreement between Stratum Holdings Corp. and Ned L. Siegel (incorporated by reference to Exhibit 10.9 to the Registration Statement on Form S-1 filed on June 14, 2022) 10.60 Board of Directors Agreement, dated April 17, 2024, between Stratum Holdings Corp. and Lourdes Felix (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on April 19, 2024) 10.61 Board of Directors Agreement, dated September 24, 2026, between Stratum Holdings Corp. and Marc Urbach (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on September 29, 2026) 10.62 Board of Directors Agreement, dated October 1, 2026, between Stratum Holdings Corp. and Joseph La Rosa (incorporated by reference to Exhibit 10.8 to the Current Report on Form 8-K filed on October 1, 2026) 10.63 Second Amended and Restated 2022 Equity Incentive Plan (incorporated by reference to Exhibit 10.194 to the Registration Statement on Form S-1 filed on August 11, 2025) 10.64 Amendment No. 1 to Second Amended and Restated 2022 Equity Incentive Plan (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on December 11, 2025) 10.65 Form of Stock Option Agreement (incorporated by reference to Exhibit 10.2 to the Registration Statement on Form S-1 filed on June 14, 2022) 10.66 Form of Restricted Stock Unit Agreement (incorporated by reference to Exhibit 10.67 to the Registration Statement on Form S-1 filed on August 3, 2022) 10.67 Form of Amendment to Restricted Stock Unit Agreement (incorporated by reference to Exhibit 10.68 to the Registration Statement on Form S-1 filed on August 3, 2022) 10.68 Third Amended and Restated 2022 Agent Incentive Plan (incorporated by reference to Exhibit 10.158 to the Annual Report on Form 10-K filed on April 15, 2025) 21.1 List of Subsidiaries (incorporated by reference to Exhibit 21.1 to the Annual Report on Form 10-K filed on June 4, 2026) 23.1 Consent of CBIZ CPAs P.C. (incorporated by reference to Exhibit 23.1 to the Registration Statement on Form S-1 filed on October 29, 2026) 23.2 Consent of Marcum LLP (incorporated by reference to Exhibit 23.2 to the Registration Statement on Form S-1 filed on October 29, 2026) 23.3 Consent of Fennemore Craig P.C. (included in Exhibit 5.1) 24.1 Power of Attorney (included on the signature page of this registration statement) Exhibit Filing Fees (incorporated by reference to Exhibit 107 to the Registration Statement on Form S-1 filed on October 29, 2026) Executive compensation plan or arrangement.

(b) Financial Statement Schedules.

financial statement schedules are omitted because the information called for is not required or is shown either in the financial statements or in the notes thereto.

The undersigned registrant hereby undertakes:

To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

To include any prospectus required by Section 10(a)(3) of the Securities Act;

To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set forth in the "Calculation of Filing Fee Tables" or "Calculation of Registration Fee" table, as applicable, in the effective registration statement; and (iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

however , that paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the registrant pursuant to section 13 or section 15(d) of the Exchange Act that are incorporated by reference in the registration statement.

That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

That, for the purpose of determining liability under the Securities Act to any purchaser:

Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and (ii) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by section 10(a) of the Securities Act shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.

That, for the purpose of determining liability of the registrant under the Securities Act to any purchaser in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule (ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;

The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and (iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

That, for purposes of determining any liability under the Securities Act, each filing of the registrant's annual report pursuant to section 13(a) or section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.

to the requirements of the Securities Act of 1933, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Celebration, State of Florida, on October 30, 2026.

STRATUM HOLDINGS CORP.

Chief Executive Officer

to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.

Chairman of the Board, Chief Executive Officer and

Interim Chief Financial Officer

(principal executive officer and principal financial and

Only in the earlier filing: Prospectus summary, Risk factors, Forward-looking statements, Use of proceeds, Dividend policy, The Purchase Agreement, Selling Stockholder, Plan of distribution, Description of the securities, Legal Matters, Experts, Where You Can Find More Information, Information Incorporated By Reference, Other Expenses of Issuance and Distribution, Indemnification of Directors and Officers, Recent Sales of Unregistered Securities, Undertakings

Compared by code from the two drafts’ text: offering terms first, then sections and risk factors added or removed, numbers that moved, and rewording. No model wrote this list. Not investment advice.

Similar companies

Companies of similar size in SIC 6531 and related industry codes: the same peer list as the financial tables.