•Second quarter revenue of $79.8 million, representing a decrease of 4% year-over-year.

•Second quarter gross margin of 70.4% and an increase in gross profit of 1% year-over-year.

•Active Buyers of 1.7 million and Orders of 1.7 million in Q2 2024, representing a decrease of 3% and a decrease of 6%, respectively, year-over-year.

•Evaluating strategic alternatives for its European business; providing Q3, Q4, and updated FY 2024 guidance for both consolidated and U.S. only operations.

Oakland, CA — August 5, 2024 — 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 second quarter ended June 30, 2024 and updated full year 2024 financial outlook.

“While this quarter presented challenges in both the U.S. and Europe, we have emerged with a renewed focus,” said ThredUp CEO and co-founder James Reinhart. “Looking ahead, we are intent on enhancing our product experience through gen-AI, improving our unit economics and driving process improvements throughout our operations. As we become a US only business again, we expect to grow faster, with structurally higher gross margins, positive adjusted EBITDA, and free cash flow."

•Revenue: Total revenue of $79.8 million, a decrease of 4% year-over-year.

◦U.S. revenue of $66.7 million, flat year-over-year.

◦Europe revenue of $13.0 million, a decrease of 18% year-over-year.

•Gross Profit and Gross Margin: Gross profit totaled $56.1 million, an increase of 1% year-over-year. Gross margin was 70.4% as compared to 67.4% for the second quarter 2023.

◦U.S. gross profit of $52.6 million, an increase of 3% year-over-year. Gross margin was 78.8% as compared to 76.4% for the second quarter 2023.

◦Europe gross profit of $3.6 million, a decrease of 25% year-over-year. Gross margin was 27.3% as compared to 29.8% for the second quarter 2023.

•Net Loss: Net loss was $14.0 million, or a negative 17.5% of revenue, for the second quarter 2024, compared to a net loss of $18.8 million, or a negative 22.7% of revenue, for the second quarter 2023.

•Adjusted EBITDA Loss and Adjusted EBITDA Loss Margin1: Adjusted EBITDA loss was $1.5 million, or a negative 1.9% of revenue, for the second quarter 2024, compared to an Adjusted EBITDA loss of $5.0 million, or a negative 6.1% of revenue, for the second quarter 2023.

•Active Buyers and Orders: Active Buyers of 1.666 million and Orders of 1.686 million, representing a decrease of 3% and a decrease of 6%, respectively, over the second quarter 2023.

•Evaluating Strategic Alternatives for its European Business: Following a review of its European operations, ThredUp intends to exit the European market and is evaluating strategic alternatives for its Remix business. In 2023, Remix generated net revenue of $63.5 million and gross margin of 24.2%.

•Launched AI-powered Search Features: ThredUp launched a new suite of AI-enabled search features to personalize the shopping experience, including improved search, image search, and style chat. These features are designed to enable ThredUp customers to easily discover and shop the company inventory of over 4 million single-SKU items. These algorithms continuously learn and improve, providing customers with relevant and personalized results.

•Published Third Annual Impact Report: ThredUp released its third annual Impact Report in August 2024. Through transparent reporting and disclosures, the report provides a comprehensive view of ThredUp’s environmental, social, and governance (ESG) profile, outlining the company’s business and brand-aligned ESG strategy and detailing the progress the company made across ESG initiatives in 2023. Read the report here https://ir.thredup.com/impact-at-thredUp.

For the third quarter 2024, ThredUp expects:

•Consolidated Revenue in the range of $69 million to $71 million.

◦U.S. Revenue in the range of $59 million to $61 million.

•Consolidated Gross margin in the range of 69.8% to 71.8%.

•Consolidated Adjusted EBITDA margin in the range of (6.0)% to (4.0)%.

◦U.S. Adjusted EBITDA margin in the range of (1.0)% to 1.0%.

For the fourth quarter 2024, ThredUp expects:

•Consolidated Revenue in the range of $70 million to $72 million.

◦U.S. Revenue in the range of $57 million to $59 million.

•Consolidated Gross margin in the range of 68.8% to 70.8%.

1 Adjusted EBITDA loss and Adjusted EBITDA loss margin are non-GAAP measures. See “Reconciliation of GAAP to Non-GAAP Financial Measures” for a detailed reconciliation of Adjusted EBITDA loss and Adjusted EBITDA loss margin to the most directly comparable GAAP measures and “Non-GAAP Financial Measures” for a discussion of why we believe these non-GAAP measures are useful.

•Consolidated Adjusted EBITDA margin in the range of (4.5)% to (2.5)%.

◦U.S. Adjusted EBITDA margin in the range of 0.0% to 2.0%.

For the full fiscal year 2024, ThredUp expects:

•Consolidated Revenue in the range of $298 million to $302 million.

◦U.S. Revenue in the range of $247 million to $251 million.

•Consolidated Gross margin in the range of 69.6% to 70.6%.

◦U.S. Gross margin in the range of 78.5% to 79.5%.

•Consolidated Adjusted EBITDA margin in the range of (3.3)% to (2.3)%.

◦U.S. Adjusted EBITDA margin in the range of 1.0% to 2.0%.

ThredUp is not providing a quantitative reconciliation of forward-looking guidance of the Non-GAAP measure Adjusted EBITDA loss to net loss because certain items are out of ThredUp’s control or cannot be reasonably predicted. Historically, these items have included, but are not limited to, stock-based compensation expense, depreciation and amortization, severance and other reorganization costs, interest expense, provision (benefit) for income taxes, acquisition and offering-related expenses, and impairment of non-marketable equity investment. Accordingly, a reconciliation for Adjusted EBITDA loss in order to calculate forward-looking Adjusted EBITDA loss margin is not available without unreasonable effort. However, for the third and the fourth quarters of 2024 and full year 2024, depreciation and amortization is expected to be $4.8 million, $4.8 million and $19.4 million, respectively. In addition, for the third and the fourth quarters of 2024 and full year 2024, stock-based compensation expense is expected to be $6.9 million, $6.8 million and $28.0 million, respectively. These items are uncertain, depend on various factors, and could result in projected net loss being materially less than is indicated by the currently estimated Adjusted EBITDA loss 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 (used in) operating activities and certain reconciling items on a forward-looking basis, which could be significant to the Company's results.

•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.

ir@thredup.com

media@thredup.com

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”, “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 third and the fourth quarters and full year of 2024; the Company’s intention to exit the European market and to seek strategic alternatives for its European business; statements about future operating results, capital expenditures and other developments in our business, our long term growth and the focus of the Company’s resources and attention in the United States; trends, consumer demand and growth in the global and U.S. online resale markets; the momentum of our business; our investments in technology and infrastructure, including with respect to AI technologies such as AI enabled search features; our ability to successfully integrate and realize the benefits of our past or future strategic acquisitions, investments or reorganization activities, including our intention to reshape ThredUp into an AI-powered resale company; the impact, including on an annualized basis, of our reduction in corporate expenses and headcount; the success and expansion of our RaaS® model and the timing and plans for future RaaS® clients; and our ability to attract new Active Buyers.

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 exit our European business and identify and execute a strategic alternative for our European business; our ability to attract new users and convert users into buyers and Active Buyers; our ability to achieve 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; our ability to continue to generate revenue from new RaaS® offerings as sources of revenue; 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 the effects of foreign currency exchange rate fluctuations, inflationary pressures, increased interest rates, 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.

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.

This press release and the accompanying tables contain non-GAAP financial measures, including: Adjusted EBITDA loss and Adjusted EBITDA loss 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 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 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 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 measures and other operating and business metrics used by other companies.

A reconciliation is provided above for Adjusted EBITDA loss to net loss, the most directly comparable financial measure stated in accordance with GAAP. We calculate Adjusted EBITDA loss as net loss adjusted to exclude, where applicable in a given period, stock-based compensation expense, depreciation and amortization, severance and other reorganization costs, interest expense, and provision for income taxes. Non-GAAP Adjusted EBITDA loss margin represents Non-GAAP Adjusted EBITDA loss divided by total revenue for the same period.

A reconciliation is provided above for free cash flow to cash flows from operations, the most directly comparable financial measure stated in accordance with GAAP. We calculate free cash flow as Net cash used in operating activities adjusted to exclude Purchases of property and equipment.

ir@thredup.com

media@thredup.com

This financial supplement 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,” 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 financial supplement include, but are not limited to, guidance on financial results for the third and the fourth quarters and full year of 2024; statements about the Company’s intention to exit the European market and to seek strategic alternatives for its Remix business; statements about future operating results and our long term growth and the focus of the Company’s resources and attention in the United States; trends, consumer demand and growth in the global and U.S. online resale markets; the momentum of our business; our investments in technology and infrastructure, including with respect to AI technologies; our ability to successfully integrate and realize the benefits of our past or future strategic acquisitions, investments or reorganization activities, including our intention to reshape ThredUp into an AI-powered resale company; the impact, including on an annualized basis, of our reduction in corporate expenses and headcount; the success and expansion of our RaaS® model and the timing and plans for future RaaS® clients; and our ability to attract new Active Buyers.

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 financial supplement 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 financial supplement.

This financial supplement and the accompanying tables contain non-GAAP financial measures: Adjusted EBITDA loss, Adjusted EBITDA loss margin, free cash flow, Non-GAAP operating expenses, 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 measures and other operating and business metrics used by other companies.

A reconciliation is provided above for Adjusted EBITDA loss to net loss and Non-GAAP operating expenses to total operating expenses, the most directly comparable financial measures stated in accordance with GAAP. We calculate Adjusted EBITDA loss as net loss adjusted to exclude, where applicable in a given period, stock-based compensation expense, depreciation and amortization, severance and other reorganization costs, interest expense, provision (benefit) for income taxes, and impairment of non-marketable equity investment. Non-GAAP Adjusted EBITDA loss margin represents Non-GAAP Adjusted EBITDA loss divided by total revenue for the same period. Non-GAAP operating expenses are operating expenses adjusted to exclude stock-based compensation expense and severance and other reorganization costs.

A reconciliation is provided above for Non-GAAP free cash flow to Net cash provided by (used in) operating activities, the most directly comparable financial measure stated in accordance with GAAP. We calculate free cash flow as Net cash provided by (used in) operating activities adjusted to exclude Purchases of property and equipment.