Filed Pursuant to Rule 424(b)(3)
Registration No. 333-259247
PROSPECTUS

GREENIDGE GENERATION HOLDINGS INC.
10,458,474 Shares of
Class A Common Stock
This prospectus relates to the resale of 10,458,474 shares of class A common stock, $0.0001 par value, of Greenidge Generation Holdings Inc. (“Greenidge”) that may be sold from time to time by the selling stockholders named in this prospectus, which includes:
| • | | 6,966,974 shares of class A common stock; and |
| • | | 3,491,500 shares of class A common stock issuable upon conversion of class B common stock. |
On September 14, 2021, we consummated the transactions contemplated by that certain Agreement and Plan of Merger, dated as of March 19, 2021, (the “Merger Agreement”), by and among Greenidge, Support.com, Inc. (“Support.com”) and GGH Merger Sub, Inc. (“Merger Sub”). As contemplated by the Merger Agreement, Merger Sub merged with and into Support.com, the separate corporate existence of Merger Sub ceased and Support.com survived as a wholly owned subsidiary of Greenidge (such transaction, the “Merger”).
We are registering the resale of (i) shares of class A common stock as required by the registration rights agreement, dated as of January 29, 2021, entered into by and among Greenidge and the investors in our formerly outstanding series A preferred stock and (ii) additional shares of class A common stock held by certain other stockholders.
Our registration of the securities covered by this prospectus does not mean that the selling stockholders will offer or sell any of the shares of outstanding class A common stock. The selling stockholders may offer, sell or distribute all or a portion of their shares of outstanding class A common stock publicly or through private transactions at prevailing market prices or at negotiated prices. We provide more information about how the selling stockholders may sell the shares in the section entitled “Plan of Distribution.” We will not receive any proceeds from the sales of outstanding class A common stock by the selling stockholders.
Trading of our class A common stock began on the Nasdaq Global Select Market on September 15, 2021 under the trading symbol “GREE.” On September 30, 2022, the closing sale price of our class A common stock as reported by the Nasdaq Global Select Market was $2.00.
Our class B common stock is not publicly traded. Holders of class A common stock and holders of class B common stock have substantially identical rights, except that holders of class A common stock are entitled to one vote per share and holders of shares of class B common stock are entitled to ten votes per share. Holders of class A common stock and holders of class B common stock vote together as a single class on all matters submitted to a vote of stockholders, unless otherwise required by law or our charter. Each share of class B common stock may be converted into a share of class A common stock at any time at the election of the holder.
We are an “emerging growth company” as defined in Section 2(a) of the Securities Act of 1933, as amended (the “Securities Act”), and are subject to reduced public company reporting requirements.
We are also a “controlled company” under the rules of The Nasdaq Stock Market LLC (“Nasdaq”) and may take advantage of certain corporate governance exemptions afforded to a “controlled company” under the rules of Nasdaq.
Investing in our class A common stock involves a high degree of risk. See “Risk Factors” beginning on page 5 of this prospectus and in the documents incorporated by reference in this prospectus to read about factors you should consider before you make an investment decision.
Neither the U.S. 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 October 6, 2022.