Earnings release
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Exhibit 99.1 ThredUp Announces Third Quarter 2026 Results • Quarterly revenue of $88.2 million, representing an increase of 7% year-over-year • Quarterly gross margin of 78.2% and an increase in gross profit of 6% year-over-year • Record Active Buyers of 1.82 million, representing an increase of 16% year-over-year • Ended the quarter with cash and cash equivalents, restricted cash, and marketable securities of $57.6 million, up $0.2 million from the previous quarter Oakland, CA — November 4, 2026 — ThredUp Inc. (Nasdaq: TDUP, LTSE: TDUP), one of the largest online resale platforms for apparel, shoes, and accessories, announced today its financial results for the third quarter ended September 30, 2026, and updated its financial outlook for the fourth quarter and full year 2026. “We're proud to report a record quarter for active buyers, orders and items sold, delivering clear value for our buyers in Q3," said ThredUp CEO and co-founder James Reinhart. “Even as we navigate a highly competitive environment, we remain focused on innovating across the product experience to compound our competitive advantages as a managed marketplace.” Third Quarter 2026 Financial Highlights • Revenue totaled $88.2 million, an increase of 7% year-over-year. • Gross Profit and Gross Margin: Gross profit totaled $69.0 million, an increase of 6% year-over- year. Gross margin was 78.2% as compared to 79.4% in the third quarter last year. • Net loss was $5.5 million, or a negative 6.2% of revenue, for the third quarter 2026, compared to a loss of $4.2 million, or a negative 5.2% of revenue, for the third quarter last year. • Adjusted EBITDA was $3.5 million, or 4.0% of revenue, for the third quarter 2026, compared to $3.8 million, or 4.6% of revenue, for the third quarter last year. • Active Buyers and Orders: Active Buyers of 1.82 million and Orders of 1.89 million for the third quarter 2026, representing increases of 16% and 17%, respectively, over the third quarter last year. 1 2
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Financial Outlook For the fourth quarter 2026, ThredUp expects: • Revenue in the range of $77.0 million to $79.0 million, 2% year-over-year decline at the midpoint, and an 8% two-year average growth rate • Gross margin in the range of 76.5% to 77.5% • Adjusted EBITDA margin in the range of (4.0)% to (2.0)% For the full fiscal year 2026, ThredUp expects: • Revenue in the range of $337.7 million to $339.7 million, 9% year-over-year growth at the midpoint, and a 14% two-year average growth rate • Gross margin in the range of 78.5% to 78.7% • Adjusted EBITDA margin in the range of 2.4% to 2.8% ThredUp is not providing a quantitative reconciliation of forward-looking guidance of the Non-GAAP measure Adjusted EBITDA margin to net loss margin, the most directly comparable financial measures under GAAP because certain items are out of ThredUp’s control or cannot be reasonably predicted. We calculate Adjusted EBITDA as net loss adjusted to exclude, where applicable in a given period, stock- based compensation expense, depreciation and amortization, legal settlement and fees, interest expense, provision for income taxes, severance and other reorganization costs, and gains related to non-marketable equity investment. Adjusted EBITDA margin represents Adjusted EBITDA divided by Revenue for the same period. Accordingly, a reconciliation for Adjusted EBITDA in order to calculate forward-looking Adjusted EBITDA margin is not available without unreasonable effort. However, for the fourth quarter and full year 2026, Depreciation and amortization is expected to be $3.3 million and $14.0 million, respectively. In addition, for the fourth quarter and full year 2026, Stock-based compensation expense is expected to be $6.0 million and $22.3 million, respectively. These items are uncertain, depend on various factors, and could result in projected net loss being materially greater than is indicated by the currently estimated Adjusted EBITDA margin. ThredUp is not providing a quantitative reconciliation for free cash flow estimates on a forward-looking basis because it is unable, without making unreasonable efforts, to provide a meaningful or reasonably accurate calculation or estimation of Net cash provided by operating activities and certain reconciling items on a forward-looking basis, which could be significant to the Company's results. Conference Call and Webcast Information • The live and archived webcast and all related earnings materials will be available at ThredUp’s investor relations website: ir.thredup.com/news-events/events-and-presentations. Adjusted EBITDA and Adjusted EBITDA margin are non-GAAP measures. See “Reconciliation of GAAP to Non-GAAP Financial Measures” for a detailed reconciliation of these non-GAAP measures to the most directly comparable GAAP measures and “Non-GAAP Financial Measures and Other Operating and Business Metrics” for a discussion of why we believe these non-GAAP measures are useful. 1 1 3
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ThredUp Inc. Condensed Consolidated Balance Sheets (unaudited) September 30,2026 December 31,2025 (in thousands) ASSETS Current assets: Cash and cash equivalents $ 42,682 $ 38,629 Marketable securities 12,156 9,498 Accounts receivable, net 4,925 2,437 Other current assets 5,976 6,112 Total current assets 65,739 56,676 Operating lease right-of-use assets 23,988 25,376 Property and equipment, net 64,065 67,243 Goodwill 10,746 10,746 Other assets 4,998 7,204 Total assets $ 169,536 $ 167,245 LIABILITIES AND STOCKHOLDERS’ EQUITY Current liabilities: Accounts payable $ 14,210 $ 10,329 Accrued and other current liabilities 22,460 24,511 Seller payable 20,366 18,264 Operating lease liabilities, current 5,764 5,401 Current portion of long-term debt — 3,875 Total current liabilities 62,800 62,380 Operating lease liabilities, non-current 25,537 28,580 Long-term debt, net of current portion 17,741 14,276 Other non-current liabilities 2,985 2,816 Total liabilities 109,063 108,052 Commitments and contingencies Stockholders’ equity: Class A and B common stock, $0.0001 par value; 1,120,000 shares authorized asof September 30, 2026 and December 31, 2025; 132,849 and 127,027 sharesissued and outstanding as of September 30, 2026 and December 31, 2025,respectively 13 12 Additional paid-in capital 654,491 635,253 Accumulated other comprehensive income (loss) (79) 3 Accumulated deficit (593,952) (576,075) Total stockholders’ equity 60,473 59,193 Total liabilities and stockholders’ equity $ 169,536 $ 167,245 4
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ThredUp Inc. Condensed Consolidated Statements of Operations (unaudited) Three Months Ended Nine Months Ended September 30,2026 September 30,2025 September 30,2026 September 30,2025 (in thousands, except per share amounts) Revenue $ 88,230 $ 82,161 $ 260,668 $ 231,109 Cost of revenue 19,197 16,949 54,451 47,790 Gross profit 69,033 65,212 206,217 183,319 Operating expenses: Operations, product, and technology 42,468 38,545 128,658 111,196 Marketing 18,173 16,186 50,875 45,535 Sales, general, and administrative 13,652 14,869 44,646 41,655 Total operating expenses 74,293 69,600 224,179 198,386 Operating loss (5,260) (4,388) (17,962) (15,067) Interest expense (340) (477) (1,023) (1,487) Other income, net 132 583 1,161 1,969 Loss before provision (benefit) for incometaxes (5,468) (4,282) (17,824) (14,585) Provision (benefit) for income taxes 2 (34) 53 54 Net loss $ (5,470) $ (4,248) $ (17,877) $ (14,639) Loss per share, basic and diluted $ (0.04) $ (0.03) $ (0.14) $ (0.12) Weighted-average shares used to computeloss per share, basic and diluted 131,827 123,903 129,806 120,318 5
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ThredUp Inc. Condensed Consolidated Statements of Comprehensive Loss (unaudited) Three Months Ended Nine Months Ended September 30,2026 September 30,2025 September 30,2026 September 30,2025 (in thousands) Net loss $ (5,470) $ (4,248) $ (17,877) $ (14,639) Other comprehensive income (loss), net oftax: Unrealized gain (loss) on available-for-salesecurities (39) 2 (82) (3) Total other comprehensive income (loss) (39) 2 (82) (3) Total comprehensive loss $ (5,509) $ (4,246) $ (17,959) $ (14,642) 6
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ThredUp Inc. Condensed Consolidated Statements of Cash Flows (unaudited) Nine Months Ended September 30,2026 September 30,2025 (in thousands) Cash flows from operating activities: Net loss $ (17,877) $ (14,639) Adjustments to reconcile net loss to net cash provided by operating activities: Stock-based compensation expense 16,303 14,459 Depreciation and amortization 10,638 9,473 Reduction in carrying amount of right-of-use assets 3,509 3,429 Other 198 (83) Changes in operating assets and liabilities: Accounts receivable, net (2,488) (158) Other current and non-current assets 117 154 Accounts payable 4,914 4,376 Accrued and other current liabilities (1,430) (3,622) Seller payable 2,103 2,792 Operating lease liabilities (4,800) (3,566) Other non-current liabilities — (500) Net cash provided by operating activities 11,187 12,115 Cash flows from investing activities: Purchases of marketable securities (14,645) (12,961) Sale and maturities of marketable securities 12,039 20,804 Purchases of property and equipment (8,749) (8,745) Net cash used in investing activities (11,355) (902) Cash flows from financing activities: Payments on debt (469) (3,000) Proceeds from issuance of stock-based awards 10,104 21,767 Payments of withholding taxes on stock-based awards (7,637) (19,215) Net cash provided by (used in) financing activities 1,998 (448) Net change in cash, cash equivalents and restricted cash 1,830 10,765 Cash, cash equivalents, and restricted cash, beginning of period 43,577 40,488 Cash, cash equivalents, and restricted cash, end of period $ 45,407 $ 51,253 7
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ThredUp Inc. Reconciliation of GAAP to Non-GAAP Financial Measures (unaudited) Adjusted EBITDA Reconciliation Three Months Ended Nine Months Ended September 30,2026 September 30,2025 September 30,2026 September 30,2025 (in thousands) Net loss $ (5,470) $ (4,248) $ (17,877) $ (14,639) Stock-based compensation expense 4,875 4,439 16,303 14,459 Depreciation and amortization 3,231 3,138 10,638 9,473 Interest expense 340 477 1,023 1,487 Legal settlement and fees 546 — 546 — Provision (benefit) for income taxes 2 (34) 53 54 Severance and other reorganization costs — — 362 (3) Gains related to non-marketable equityinvestments — — — (234) Non-GAAP Adjusted EBITDA $ 3,524 $ 3,772 $ 11,048 $ 10,597 Revenue $ 88,230 $ 82,161 $ 260,668 $ 231,109 Non-GAAP Adjusted EBITDA margin 4.0 % 4.6 % 4.2 % 4.6 % Free Cash Flow Reconciliation Nine Months Ended September 30,2026 September 30,2025 (in thousands) Net cash provided by operating activities $ 11,187 $ 12,115 Purchases of property and equipment (8,749) (8,745) Non-GAAP free cash flow $ 2,438 $ 3,370 8
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Investors ir@thredup.com Media media@thredup.com About ThredUp ThredUp is transforming resale with technology and a mission to inspire the world to think secondhand first. By making it easy to buy and sell secondhand, ThredUp has become one of the world's largest online resale platforms for apparel, shoes and accessories. Sellers enjoy ThredUp because we make it easy to clean out their closets and unlock value for themselves or for the charity of their choice while doing good for the planet. Buyers enjoy shopping value, premium and luxury brands all in one place, at up to 90% off estimated retail price. Our proprietary operating platform is the foundation for our managed marketplace and consists of distributed processing infrastructure, proprietary software and systems and data science expertise. With ThredUp’s Resale-as-a-Service, some of the world's leading brands and retailers are leveraging our platform to deliver customizable, scalable resale experiences to their customers. ThredUp has processed over 250 million unique secondhand items from 60,000 brands across 100 categories. By extending the life cycle of clothing, ThredUp is changing the way consumers shop and ushering in a more sustainable future for the fashion industry. Forward-Looking Statements This press release contains forward-looking statements within the meaning of the federal securities laws, which are statements that involve substantial risks and uncertainties. Forward-looking statements generally relate to future events or our future financial or operating performance. In some cases, you can identify forward-looking statements because they contain words such as “may,” “will,” “shall,” “should,” “expects,” “plans,” “anticipates,” “could,” “intends,” “target,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential”, “looking ahead”, “looking forward,” “seeking” or “continue” or the negative of these words or other similar terms or expressions that concern our expectations, strategy, plans or intentions. Forward-looking statements in this release include, but are not limited to, guidance on financial results for the fourth quarter and full year of 2026; statements about future free cash flow, operating results, capital expenditures and other developments in our business and our long term growth; trends, consumer demand and growth in the online resale markets; the momentum of our business; our investments in technology and infrastructure, including with respect to AI technologies; the impact of tariffs and other changes to global trade on our business; the success and expansion of our RaaS model and the timing and plans for future RaaS clients; the implementation and success of direct selling and premium listings on ThredUp; our ability to attract new Active Buyers, including our efforts to make resale more engaging and accessible to a wider audience through innovative shopping experiences, such as the launch of our rebrand; and legal and regulatory developments. ® ® 9
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Forward-looking statements are neither historical facts nor assurances of future performance. Forward- looking statements involve substantial risks and uncertainties that may cause actual results to differ materially from those that we expect. These risks and uncertainties include, but are not limited to: our ability to attract new users and convert users into buyers, Active Buyers, and sellers; our ability to achieve and maintain profitability; the sufficiency of our cash, cash equivalents and capital resources to meet our liquidity needs; our ability to effectively manage or sustain our growth and to effectively expand our operations; risks from an intensely competitive market; our ability to effectively deploy new and evolving technologies, such as artificial intelligence and machine learning, in our offerings; risks arising from economic and industry trends, including tariffs, inflationary pressures, interest rate volatility, changing consumer habits, climate change and general global economic uncertainty; our ability to comply with applicable laws and regulations; and our ability to successfully integrate and realize the benefits of our past or future strategic acquisitions or investments. More information on these risks and other potential factors that could affect the Company’s business, reputation, results of operations, financial condition, and stock price is included in the Company’s filings with the Securities and Exchange Commission (“SEC”), including in the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of the Company’s most recently filed periodic reports on Form 10-K and Form 10-Q and subsequent filings. The forward-looking statements in this release are based on information available to us as of the date hereof, and we disclaim any obligation to update any forward-looking statements, except as required by law. These forward-looking statements should not be relied upon as representing ThredUp’s views as of any date subsequent to the date of this press release. Additional information regarding these and other factors that could affect ThredUp's results is included in ThredUp’s SEC filings, which may be obtained by visiting our Investor Relations website at ir.thredup.com or the SEC's website at www.sec.gov. Channels for Disclosure of Information ThredUp intends to announce material information to the public through the ThredUp Investor Relations website ir.thredup.com, SEC filings, press releases, public conference calls, and public webcasts. ThredUp uses these channels, as well as social media, to communicate with its investors, customers, and the public about the company, its offerings, and other issues. It is possible that the information ThredUp posts on social media could be deemed to be material information. As such, ThredUp encourages investors, the media, and others to follow the channels listed above, including the social media channels listed on ThredUp’s investor relations website, and to review the information disclosed through such channels. Non-GAAP Financial Measures and Other Operating and Business Metrics 10
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This press release and the accompanying tables contain non-GAAP financial measures, including: Adjusted EBITDA, Adjusted EBITDA margin, free cash flow, and other operating and business metrics. In addition to our results determined in accordance with GAAP, we believe that these non-GAAP financial measures and other operating and business metrics, are useful in evaluating our operating performance and enhancing an overall understanding of our financial position. We use these measures and metrics to evaluate and assess our operating performance, and for internal planning and forecasting purposes. We believe that these non-GAAP financial measures, when taken collectively with our GAAP results, may be helpful to investors because they provide consistency and comparability with past financial performance and assist in comparisons with other companies, some of which use similar non-GAAP financial information to supplement their GAAP results. Our non-GAAP financial measures and other operating and business metrics are presented for supplemental informational purposes only, should not be considered a substitute for financial information presented in accordance with GAAP and may be different from similarly-titled non-GAAP financial measures and other operating and business metrics used by other companies. We encourage investors to review our results determined in accordance with GAAP and the accompanying reconciliations for more information. A reconciliation is provided above for historical Non-GAAP Adjusted EBITDA to Net loss, the most directly comparable financial measure stated in accordance with GAAP. We calculate Non-GAAP Adjusted EBITDA as Net loss adjusted to exclude, where applicable in a given period, stock-based compensation expense, depreciation and amortization, legal settlement and fees, interest expense, provision for income taxes, severance and other reorganization costs, and gains related to non- marketable equity investment. Non-GAAP Adjusted EBITDA margin represents Non-GAAP Adjusted EBITDA divided by Revenue for the same period. A reconciliation is provided above for Non-GAAP free cash flow to Net cash provided by operating activities, the most directly comparable financial measure stated in accordance with GAAP. We calculate Non-GAAP free cash flow as Net cash provided by operating activities reduced by Purchases of property and equipment. An Active Buyer is a ThredUp buyer who has made at least one purchase in the last twelve months. A ThredUp buyer is a customer who has created an account and purchased in our marketplaces, including through our RaaS clients, and is identified by a unique email address. A single person could have multiple ThredUp accounts and count as multiple Active Buyers. Orders are defined as the total number of orders placed by buyers across our marketplaces, including through our RaaS clients, in a given period, net of cancellations. ® ® 11