•Quarterly revenue of $67.3 million, representing an increase of 9% year-over-year.

•Record fourth quarter gross margin of 80.4%.

•Record full year revenue of $260.0 million, representing 1% growth year-over-year. Record full year gross margin of 79.7%.

•Active Buyers of 1,274 thousand and Orders of 1,226 thousand in Q4 2024, representing year-over-year decrease of 6% and increase of 2%, respectively.

Oakland, CA — March 3, 2025 — ThredUp Inc. (Nasdaq: TDUP, LTSE: TDUP), one of the largest online resale platforms for apparel, shoes, and accessories, today announced its financial results for the fourth quarter and full year ended December 31, 2024.

“We are proud to have closed out 2024 with a definitive return to growth, while also delivering strong bottom-line results,” said ThredUp CEO and co-founder James Reinhart. “In 2025, we look forward to leveraging our multi-year infrastructure and technology investments to accelerate growth while making steady progress towards our long-term profitability targets.”

During the fourth quarter of 2024, we divested 91% of our European business and Bulgarian subsidiary, Remix Global EAD (“Remix”), meeting the requirements for reporting Remix as a discontinued operation. Accordingly, our unaudited condensed consolidated financial statements reflect Remix’s business as a discontinued operation for all periods presented. Unless otherwise noted, amounts and disclosures below relate to our continuing operations.

•Revenue: Total revenue of $67.3 million, an increase of 9% year-over-year.

•Gross Profit and Gross Margin: Gross profit totaled $54.1 million, representing an increase of 14% year-over-year. Gross margin was 80.4% as compared to 77.5% in the fourth quarter last year.

•Loss from Continuing Operations: Loss from continuing operations was $8.1 million, or a negative 12.0% of revenue, for the fourth quarter 2024, compared to a loss of $8.5 million, or a negative 13.8% of revenue, for the fourth quarter 2023.

•Adjusted EBITDA from Continuing Operations and Adjusted EBITDA from Continuing Operations Margin1: Adjusted EBITDA from continuing operations was $5.0 million, or a 7.4% of revenue, for the fourth quarter 2024. This is compared to an Adjusted EBITDA from continuing operations of $2.5 million, or a 4.1% of revenue, for the fourth quarter 2023.

•Active Buyers and Orders: Active Buyers of 1,274 thousand and Orders of 1,226 thousand for the fourth quarter 2024, representing a decrease of 6% and an increase of 2%, respectively, year-over-year.

•Revenue: Total revenue of $260.0 million, an increase of 1% year-over-year.

•Gross Profit and Gross Margin: Gross profit totaled $207.1 million, representing an increase of 4% year-over-year. Gross margin was 79.7% compared to 76.8% last year.

•Loss from Continuing Operations: Loss from continuing operations was $40.0 million, or a negative 15.4% of revenue, for the full year 2024, compared to a loss of $52.4 million, or a negative 20.3% of revenue, for the full year 2023.

•Adjusted EBITDA (Loss) from Continuing Operations and Adjusted EBITDA (Loss) from Continuing Operations Margin1: Adjusted EBITDA from continuing operations was $8.7 million, or a 3.3% of revenue, for the full year 2024, compared to the Adjusted EBITDA (loss) from continuing operations of $(5.3) million, or a negative 2.1% of revenue, for the full year 2023.

•Orders: Orders of 4,850 thousand for the full year 2024, a decrease of 1% year-over-year.

•Customer Experience Updates Drive Improved Site Metrics: Customer experience updates generated encouraging results in Q4. The quarter delivered ThredUp’s strongest Q4 for new buyer acquisition in its history. Notably, new buyer conversion rates reached all-time highs bolstered by Image Search, which drives 85% higher conversion and more than double the variety of search terms than standard search.

•Completed Divestiture of European Business: ThredUp completed the transaction to divest its European business, Remix, in a management buyout. ThredUp retains a minority interest in the Remix business and prior to the closing of the transaction, paid a final cash investment of $2 million.

For the first quarter 2025, ThredUp expects:

•Revenue in the range of $67.5 million to $69.5 million, +6% year-over-year at the midpoint

•Gross margin in the range of 77.0% to 79.0%

•Adjusted EBITDA margin in the range of 2.5% to 3.5%

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

For the full fiscal year 2025, ThredUp expects:

•Revenue in the range of $270.0 million to $280.0 million, +6% year-over-year at the midpoint

•Gross margin in the range of 77.0% to 79.0%

•Adjusted EBITDA margin flat to full year 2024’s result of 3.3%

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 measure 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, depreciation and amortization, stock-based compensation expense, severance and other reorganization costs, interest expense and provision for income taxes. Adjusted EBITDA margin represents Adjusted EBITDA divided by Total 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 first quarter of 2025 and full year 2025, depreciation and amortization is expected to be $3.2 million and $12.6 million, respectively. In addition, for the first quarter of 2025 and full year 2025, stock-based compensation expense is expected to be $5.4 million and $14.5 million, respectively. These items are uncertain, depend on various factors, and could result in the projected net loss being materially greater than indicated by the currently estimated Adjusted EBITDA margin.

•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”, “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 first quarter and full year of 2025; statements about future 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 such as AI enabled search features and image search; the success and expansion of our RaaS® model and the timing and plans for future RaaS® clients; 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; and our ability to successfully integrate and realize the benefits of our past or future strategic acquisitions, investments or divestitures and legal and regulatory developments.

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 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 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) from continuing operations, Adjusted EBITDA (loss) from continuing operations 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 Non-GAAP Adjusted EBITDA (loss) from continuing operations to loss from continuing operations, the most directly comparable financial measure stated in accordance with GAAP. We calculate Non-GAAP Adjusted EBITDA (loss) from continuing operations as loss from continuing operations 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) from continuing operations margin represents Non-GAAP Adjusted EBITDA (loss) from continuing operations divided by Total revenue for the same period.

A reconciliation is provided above for Non-GAAP free cash flow from continuing operations to cash flows from continuing operations, the most directly comparable financial measure stated in accordance with GAAP. We calculate Non-GAAP free cash flow as Net cash provided by (used in) continuing 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 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 financial supplement include, but are not limited to, guidance on financial results for the first quarter and full year of 2025; statements about future 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 such as AI enabled search features and image search; the success and expansion of our RaaS® model and the timing and plans for future RaaS® clients; 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; and our ability to successfully integrate and realize the benefits of our past or future strategic acquisitions, investments or divestitures and legal and regulatory developments.

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) from continuing operations, Adjusted EBITDA (loss) from continuing operations margin, and Non-GAAP operating expenses. In addition to our results determined in accordance with GAAP, we believe that Adjusted EBITDA (loss) from continuing operations, Adjusted EBITDA (loss) from continuing operations margin, and Non-GAAP operating expenses, our non-GAAP financial measures, are useful in evaluating our operating performance. We use Adjusted EBITDA (loss) from continuing operations, Adjusted EBITDA (loss) from continuing operations margin, and Non-GAAP operating expenses to evaluate and assess our operating performance and the operating leverage in our business, and for internal planning and forecasting purposes. We believe that Adjusted EBITDA (loss) from continuing operations, Adjusted EBITDA (loss) from continuing operations margin, and Non-GAAP operating expenses, 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. Adjusted EBITDA (loss) from continuing operations, Adjusted EBITDA (loss) from continuing operations margin, and Non-GAAP operating expenses 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 used by other companies.

A reconciliation is provided above for Non-GAAP Adjusted EBITDA (loss) from continuing operations to loss from continuing operations, the most directly comparable financial measures stated in accordance with GAAP. We calculate Adjusted EBITDA (loss) from continuing operations as loss from continuing operations adjusted to exclude, where applicable in a given period, stock-based compensation expense, depreciation and amortization, interest expense, severance and other reorganization costs and provision (benefit) for income taxes.

A reconciliation is provided above for Non-GAAP operating expenses to Total operating expenses, the most directly comparable financial measures stated in accordance with GAAP. 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) continuing 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) continuing operating activities reduced by Purchases of property and equipment.

ThredUp is not providing a quantitative reconciliation of forward-looking guidance of the non-GAAP measures above, including Adjusted EBITDA margin to net loss margin, the most directly comparable financial measure 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, depreciation and amortization, stock-based compensation expense, severance and other reorganization costs, interest expense and provision for income taxes. Adjusted EBITDA margin represents Adjusted EBITDA divided by Total 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. 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.