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Capitalization | 12 Months Ended
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Dec. 31, 2023
Equity [Abstract] |
Capitalization | Capitalization SJW Group is authorized to issue 70,000,000 shares of common stock of $0.001 par value per share. At December 31, 2023 and 2022, 32,023,004 and 30,801,912, respectively, shares of common stock were issued and outstanding. As of December 31, 2023 and 2022, 1,000,000 shares of preferred stock of $0.001 par value per share were authorized for SJW Group. At December 31, 2023 and 2022, no shares of preferred stock were issued or outstanding. In March 2023, SJW Group entered into Amendment No. 1 to the equity distribution agreement (the “Equity Distribution Agreement”), dated November 17, 2021, between SJW Group and J.P. Morgan Securities LLC, Janney Montgomery Scott LLC, RBC Capital Markets, LLC and Wells Fargo Securities, LLC, pursuant to which the company may offer and sell shares of its common stock, $0.001 par value per share, from time to time in “at-the-market” offerings, having an aggregate gross sales price of up to $240,000. For the year ended December 31, 2023, SJW Group issued and sold a total of 1,119,806 shares of common stock with a weighted average price of $73.68 per share and received $80,659 in net proceeds under the Equity Distribution Agreement. Since the inception of the Equity Distribution Agreement, SJW Group has issued and sold 2,004,657 shares of common stock with a weighted average price of $73.57 for a total net proceeds of $143,998 and has a remaining $92,509 under the Equity Distribution Agreement to issue into shares. On March 8, 2021, SJW Group entered into an underwriting agreement with J.P. Morgan Securities LLC, as the representative of the several underwriters named therein (the “Underwriters”), which provided for the issuance and sale by SJW Group to the Underwriters 1,030,000 shares of common stock, par value $0.001 per share, in an underwritten public offering (the “Offering”). The shares in the Offering were sold at a public offering price of $59.00 per share. SJW Group also granted the Underwriters an option to purchase up to 154,500 additional shares of common stock, which was exercised in full. The Offering closed on March 11, 2021, and the offering of option shares closed on March 16, 2021. SJW Group received net proceeds of $66,775 from the Offering and the sale of option shares, after deducting the underwriting discounts and commissions and offering expenses.

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