Filed pursuant to Rule 424(b)(3)

Registration No. 333-256938



(to Prospectus dated June 16, 2021)




Hydrofarm Holdings Group, Inc.

3,369,138 Shares of Common stock


This prospectus supplement supplements the prospectus dated June 16, 2021 (the “Prospectus”), which forms a part of our registration statement on Form S-1 (No. 333-256938). This prospectus supplement is being filed to update and supplement the information in the Prospectus with the information contained in our Current Report on Form 8-K, filed with the Securities and Exchange Commission on July 7, 2021 (the “Current Report”). Accordingly, we have attached the Current Report to this prospectus supplement.


The Prospectus and this prospectus supplement relates to the offer and sale from time to time of up to 3,369,138 shares of our common stock by the selling stockholders listed on page 26 of the Prospectus. The number of shares offered for sale by the selling stockholders consists of up to 3,369,138 shares of our common stock currently issuable upon the exercise of warrants held by the selling stockholders, which were issued in connection with a private placement of units, each consisting of a share of common stock and a warrant to purchase an additional one-half (1/2) share of common stock, which concluded on October 30, 2018. The shares of our common stock offered hereby are issuable upon the exercise of warrants issued by us in a series of private placement transactions completed prior to the filing of the registration statement containing the Prospectus.


Our common stock is traded on The Nasdaq Global Select Market under the symbol “HYFM.” On July 6, 2021, the closing price of our common stock was $58.44 per share.


We are an “emerging growth company” under applicable federal securities laws and will be subject to reduced public company reporting requirements.


Investing in our common stock is highly speculative and involves a high degree of risk. See “Risk Factors beginning on page 21 of the Prospectus to read about factors you should consider before buying shares of our common stock.


Neither the Securities and Exchange Commission nor any other regulatory body has approved or disapproved of these securities or passed upon the accuracy or adequacy of the disclosures in the Prospectus. Any representation to the contrary is a criminal offense.


The date of this prospectus supplement is July 7, 2021.












Date of report (Date of earliest event reported): July 1, 2021


Hydrofarm Holdings Group, Inc.

(Exact name of registrant as specified in its charter)


Delaware   001-39773   81-4895761
(State or other jurisdiction of
incorporation or organization)
  (Commission File
  (I.R.S. Employer
Identification No.)
    270 Canal Road
Fairless Hills, PA 19030
    (Address of Principal Executive
Offices) (Zip Code)
Registrant’s telephone number, including area code: (707) 765-9990


290 Canal Road
Fairless Hills, PA 19030
(Former name or former address, if changed since last report)


Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under any of the following provisions:


  ¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)


  ¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)


  ¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))


  ¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))


Securities registered pursuant to Section 12(b) of the Act:


Title of each class Trading symbol(s) Name of each exchange on which registered
Common Stock, $0.0001 par value per share HYFM NASDAQ Global Select Market


Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).


Emerging growth company x


If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨






Item 2.01 Completion of Acquisition or Disposition of Assets.


On July 1, 2021, Hydrofarm Holdings Group, Inc. (the “Company”) completed the previously announced acquisition of 100% of the issued and outstanding membership interests of Gotham Properties LLC, an Oregon limited liability company (“Gotham Properties”), Aurora Innovations Inc., an Oregon corporation (“Aurora Innovations”), Aurora International, Inc., an Oregon corporation (“Aurora International” and, together with Gotham Properties and Aurora Innovations, “Aurora”), pursuant to the terms of the securities purchase agreement (the “Purchase Agreement”), by and among the Company, Aurora and certain equityholders party thereto, for a purchase price of up to $161 million, consisting of $135 million in cash and $26 million of its common stock (the “Equity Consideration”), subject to customary adjustments at closing for cash, working capital, transaction expenses and indebtedness of Aurora (the “Acquisition”). The purchase price excludes a potential earn out payment estimated at approximately $21 million based on achievement of certain performance metrics.


Founded in 2000, Aurora is a family-owned business with a strong vertically integrated manufacturing base with three locations across North America. The company is dedicated to ethical and sustainable practices and offers comprehensive plant fertility product lines free from harmful chemical residues and pesticides. Aurora will add to the Company’s growing proprietary brand nutrient and grow media line-ups, including its first organic nutrient and premium soil brands. The Company will also gain new domestic manufacturing and distribution capabilities on the east and west coasts along with a peat moss harvesting operation in Canada.


The foregoing description of the Purchase Agreement does not purport to be complete and is qualified in its entirety by reference to the provisions of the Purchase Agreement, a copy of which was filed as Exhibit 2.1 to the Company’s Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission on June 21, 2021.


Item 3.02 Unregistered Sales of Equity Securities


The information regarding the Purchase Agreement and the issuance of the Equity Consideration contemplated thereunder set forth in Item 2.01 of this Current Report on Form 8-K is incorporated into this Item 3.02 by reference. The Equity Consideration was issued in reliance upon an exemption from the registration requirements of the Securities Act of 1933, as amended, pursuant to Section 4(a)(2) thereof, which exempts transactions by an issuer not involving any public offering.


Item 7.01 Regulation FD Disclosure.


On July 1, 2021, the Company issued a press release announcing the closing of the Acquisition. A copy of the press release is attached as Exhibit 99.1 and incorporated herein by reference.


Item 9.01 Financial Statements and Exhibits.


Exhibit No.   Description
99.1   Press Release, dated July 1, 2021.
104   Cover Page Interactive Data File (embedded within the Inline XBRL document).







Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


  Hydrofarm Holdings Group, Inc.
Date: July 7, 2021 By:  /s/ William Toler
    Name:  William Toler
    Title: Chief Executive Officer





Exhibit 99.1




Hydrofarm Completes Acquisition of Aurora Innovations and its Organic Nutrients and Grow Media Operations


Fairless Hills, Pa. (July 1, 2021)Hydrofarm Holdings Group, Inc. (“Hydrofarm”) (Nasdaq: HYFM), a leading distributor and manufacturer of hydroponics equipment and supplies, today announced that it has completed its previously announced acquisition of Aurora Innovations, Inc., Aurora International, Inc., and Gotham Properties LLC , a Eugene, Oregon-based manufacturer and supplier of organic hydroponic products. The announcement follows Hydrofarm’s recent acquisitions of hydroponic nutrient brands HEAVY 16, House & Garden, and Mad Farmer.


About Hydrofarm Holdings Group, Inc.


Hydrofarm is a leading distributor and manufacturer of controlled environment agriculture equipment and supplies, including high-intensity grow lights, climate control solutions, and growing media, as well as a broad portfolio of innovative and proprietary branded products. For more than 40 years, Hydrofarm has helped growers in the U.S. and Canadian markets make growing easier and more productive.  The Company’s mission is to empower growers, farmers and cultivators with products that enable greater quality, efficiency, consistency and speed in their grow projects. For additional information, please visit:


Investor Relations:


Fitzhugh Taylor


Media Contacts:

The LAKPR Group

Hannah Arnold, 202-559-9171,

Lynn Trono, 323-672-8226,



Lisa Gallagher, 513-505-2334,