Filed pursuant to Rule 424(b)(3)

Registration No. 333-256938



(to Prospectus dated June 16, 2021)


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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 13, 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 12, 2021, the closing price of our common stock was $57.76 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 13, 2021.

















Date of report (Date of earliest event reported): July 12, 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)
File Number)
  (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




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 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.


On July 12, 2021, Hydrofarm Holdings Group, Inc. (the “Company”) appointed Mr. Joseph Rumley, 62, as the Company’s Chief Accounting Officer, effective as of the same date. Mr. Rumley will serve as the Company’s principal accounting officer and will report to the Company’s Chief Financial Officer, B. John Lindeman.


Prior to joining the Company, Mr. Rumley served as the Chief Financial Officer of West Coast Berry Farms LLC since January 2018. Mr. Rumley previously served as the Chief Financial Officer and Principal Accounting Officer of Limoneira Company (Nasdaq: LMNR) from June 2010 until January 2018. Mr. Rumley has 20 years of public accounting experience, including serving an audit partner at Grant Thornton, LLP and McGladrey & Pullen, LLP. Mr. Rumley received a Bachelor of Science in Accounting from California State University Northridge and a Master of Business Administration from Pepperdine University. He is a California Certified Public Accountant.


Mr. Rumley’s annual base salary is $300,000, and he is eligible for an annual performance bonus of up to fifty percent (50%) of his annual base salary and other benefits customarily available to the Company’s employees, including an award of restricted stock units valued at $425,000 under the Company’s 2020 Employee, Director and Consultant Equity Incentive Plan.


Mr. Rumley has no family relationships with any of the Company’s directors or executive officers. There are no related party transactions between the Company and Mr. Rumley in excess of $120,000.







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 13, 2021 By:  /s/ William Toler
    Name:  William Toler
    Title: Chief Executive Officer