NYSE: NXDR

The Nextdoor Ecosystem

Nextdoor is built on the unique combination of neighbor identity, trust and proximity. Our platform is powered by our core constituencies: neighbors, businesses, and public agencies seeking to build stronger, more connected communities. Neighbors use Nextdoor to connect with their neighbors, follow local news, participate in conversations, discover and support local businesses, and exchange goods and services. Businesses use our platform to reach high-intent audiences through free Business Pages and targeted advertising, while public agencies — including fire departments, law enforcement, and municipal offices — share real-time updates, critical alerts, and community information.

This ecosystem is further enhanced by more than 4,000 local news publishers whose content accounted, as of December 31, 2025, for approximately 7% of total feed volume, as well as alert partners such as Waze, Weather.com, and the U.S. Geological Survey. These partnerships deliver real-time traffic, weather, and safety notifications, increasing the relevance and utility of our platform.

Key Features and Technology

The user experience anchors on the Feed, a dynamic, personalized stream of neighbor posts, discussions, news, alerts, and community updates tailored by location. Our Search functionality connects neighbors to local businesses and resources, enabling discovery and recommendations that help drive visibility and loyalty for local businesses. Additionally, For Sale & Free facilitates a local marketplace where neighbors can buy, sell, or donate items within their communities.

Our platform is built on a rich local data set that includes event details, recommendations, and insights into neighbor and neighborhood interests and behaviors. This proprietary data powers our unique local knowledge and neighbor graph, enabling more relevant content experiences for neighbors and more effective advertising solutions for businesses.

Through ongoing enhancements in AI and ML capabilities, we continue to improve content personalization, notification relevance, and ad performance. By seamlessly connecting neighbors, businesses, and public agencies, we continue to evolve Nextdoor into the most useful, real-time resource for neighborhoods—with a clear ambition: if it’s happening in your neighborhood, it’s on Nextdoor.

1 Verified Neighbors are individuals who have joined Nextdoor and completed the verification process for their account.

Our Advertising Solutions

Nextdoor offers a comprehensive suite of advertising solutions designed to deliver measurable results for businesses of all sizes. Our Nextdoor Ads Platform is built on a proprietary ad stack that includes the Nextdoor Ads Manager interface, our native ad server, and measurement and API tools. Together, these capabilities help businesses to connect with high-intent local audiences, build brand awareness, and drive customer engagement where decisions are made: in the neighborhood. To help businesses achieve these goals, we provide a range of key features and benefits:

•Hyperlocal Targeting: Powered by our first-party data from over 105 million Verified Neighbors, Nextdoor’s unique neighborhood-level targeting capabilities helps advertisers reach validated audiences based on neighborhood, interests, and real-world behavior. This is designed to help campaigns reach the most relevant neighborhoods to enhance impact.

•Diverse Ad Formats: We offer a variety of engaging ad formats, including sponsored posts, lead generation forms, native display ads, and video ads to cater to different marketing objectives and creative strategies. In 2025, we expanded our creative capabilities with AI-powered tools that help advertisers generate locally relevant copy and imagery at scale.

•Ad Auction and Delivery: Our ad auction system prioritizes ad relevance, quality, and user experience. Our algorithms analyze user interests, demographics, and historical behavior to optimize performance for advertisers while maintaining feed quality for neighbors.

•Measurement and Attribution: We provide robust measurement tools, including pixel-based and API-based conversion tracking, to help advertisers quantify impact. These insights allow businesses to track key performance indicators—such as website visits, leads, and online sales—and optimize their marketing spend based on clear attribution. For advertisers seeking deeper insight into offline outcomes, our sales team also collaborates with independent measurement partners to run campaign‑specific brand lift and foot‑traffic studies, providing additional visibility into consumer perception and in‑store activity.

•Brand Safety and Trust: We maintain a safe and trustworthy environment for both users and advertisers by implementing strict brand safety measures and partnering with independent third-party verification providers designed to help ensure brand suitability and help protect against fraud.

Go-to-Market Approach

Our go-to-market approach combines the scale and efficiency of our self-serve ads platform with the expertise of a dedicated global sales team. This hybrid approach allows us to cater to businesses of all sizes, from small local businesses to large global brands, across both self‑serve and managed campaigns. In addition to buying directly through our platform, advertisers can work with select programmatic and data partners to reach Nextdoor audiences more efficiently using their existing programmatic workflows.

Nextdoor Ads Manager (“NAM”) is the primary interface to our proprietary ad stack and powers our self-serve advertising channel by enabling advertisers to independently plan, launch, and optimize campaigns. Continued product investments in automated optimization, AI-driven creative support, and simplified campaign management have delivered measurable performance improvements, including higher click-through rates and lower cost-per-click for advertisers.

For advertisers with more complex needs, our dedicated global sales team provides personalized support across our ad stack throughout the marketing lifecycle, including campaign planning, optimization, and performance analysis. Strategically positioned across markets, our sales team focuses on attracting and retaining advertisers while driving measurable outcomes across all ad products.

A Community First Approach

Nextdoor continually innovates to facilitate productive neighborhood conversations. We maintain this constructive and authentic environment through a multi-layered strategy that combines neighbor verification based on location with clear Community Guidelines, and a hybrid moderation model leveraging both advanced technology and human review.

Real Identity and Verification

To ensure authenticity, Nextdoor requires neighbors to sign up using their real names and addresses. This verification process creates a network of real people, establishing a foundation of trust. Businesses, news partners, and public agencies undergo a similar verification process to establish trust within the ecosystem.

Hybrid Moderation Framework

We employ a three-tiered moderation framework to maintain a positive and productive environment.

•AI and Automated Solutions: We utilize ML models to proactively detect and flag harmful content before it is visible. Features such as the Kindness Reminder and Constructive Conversations Reminder encourage respectful dialogue by analyzing tone and suggesting constructive edits. From time to time, we test generative AI tools, including tools intended to help neighbors draft more constructive and engaging posts and comments in line with our Community Guidelines.

•Community Moderation: Leveraging the local context known by our users, we support a network of over 200,000 volunteer community reviewers. These volunteer neighbor reviewers are equipped with specialized tools to review reported content and uphold Community Guidelines in a way that reflects the unique nuances of their neighborhoods.

•Neighborhood Operations Team: Reports of specific types of content, including misinformation and discrimination, are escalated directly to Nextdoor’s internal operations staff. This ensures consistent, professional enforcement of our standards and policies.

Focus on Engagement Quality

We aim to balance high‑quality interactions on our platform with growth in overall usage. From time to time, we adjust our notification and email strategies, including periods where we reduce or reconfigure volume to improve relevance and the overall neighbor experience. These changes, together with product experiments, seasonality, and other factors, can lead to fluctuations in available ad impressions and short‑term metrics such as Platform WAU. Over the long term, we believe that focusing on relevant, useful experiences for neighbors is important to sustaining trust, deepening engagement, and supporting our business.

Technology and Innovation

We continually invest in technology to enhance our offerings for neighbors, businesses, and public agencies. At the core of our strategy is the use of AI and ML, which powers personalized content distribution for neighbors and optimizes ad reach and performance for advertisers. By leveraging our unique data set, we have developed AI-powered features to increase relevance, engagement, and utility for all. We continue investing in our proprietary ad platform to deliver greater advertiser value, reduce advertiser effort, and enable businesses of all sizes to succeed on Nextdoor.

Intellectual Property

Our intellectual property and core technological innovations are integral components of our business. To establish and protect our intellectual property, proprietary rights and brand, we rely on a combination of federal, state, and common-law rights in the United States and the rights under the laws of other countries, patents, trademarks, copyrights, domain name, trade secrets, including know-how, license agreements, confidentiality procedures, non-disclosure agreements with third parties, employee disclosure, and invention assignment agreements, and other contractual rights.

We own a trademark portfolio, including registered trademarks and applications in the United States and other countries, for the marks NEXTDOOR, , and . We have registered domain names that we use in or relate to our business, such as the <nextdoor.com> domain name and country code top level domain name equivalents. As of December 31, 2025, we had 10 issued patent families in the United States. We cannot assure you that any of our patent applications will result in the issuance of a patent or whether the examination process will require us to narrow our claims. Additionally, our current and future patents, trademarks, and other intellectual property or other proprietary rights may be contested, circumvented or found unenforceable or invalid. We may not be able to obtain or maintain sufficient protection for or successfully enforce our intellectual property. We license content, technology, and other intellectual property from our partners, and rely on our license agreements with those partners to use the intellectual property. Third parties may assert claims related to intellectual property rights against our partners or us.

For additional information, please see the section entitled “Risk Factors — Risks Related to Intellectual Property.”

Talent Management and Development

Our Culture and Core Values

Community drives everything we do at Nextdoor, and our employees embody that spirit. We are committed to attracting and retaining top talent by fostering an environment that promotes professional growth and personal impact. Our talent strategy is guided by three core values:

•Build for community;

•Raise the bar; and

•Act like an owner.

These principles anchor our performance culture and empower our workforce to contribute directly to Nextdoor’s long-term success.

As of December 31, 2025, we had 463 employees in the United States, Canada, and the United Kingdom.

Talent Acquisition, Development, and Retention

We prioritize the acquisition, development, and retention of talent at all levels of the organization. Our recruitment process is rigorous and standardized, utilizing behavioral and situational-based interviewing to identify candidates who demonstrate the skills and values necessary for long-term success.

Once onboarded, we invest in continuous development. We facilitate company-wide performance feedback and promotion cycles, complemented by recognition programs like our “Nextdoor Values Awards”. Our learning and development initiatives provide ongoing opportunities for skills enhancement, leadership growth, and compliance training. Additionally, we encourage the responsible use of AI-enabled tools to enhance employee productivity and innovation, supported by training and governance frameworks to ensure privacy, security, and legal compliance.

To foster an environment where employees feel engaged, valued, and heard, we actively seek and respond to their feedback through surveys, direct leadership interactions, and “All Hands” meetings that bring the entire company together. This open feedback loop allows us to address evolving employee needs and sustain our status as an employer of choice. We strive to create a dynamic, inclusive environment that supports and values employees with a wide range of experiences and perspectives.

Compensation, Benefits and Wellbeing

Our “Total Rewards” philosophy is designed to attract top talent and align employee and company interests. Our competitive compensation packages include base salaries, equity awards, and sales commissions for certain employees. Benefits vary by country and region and include retirement plans with company match, comprehensive healthcare coverage, flexible paid time off, parental leave, and family, caregiving, and mental health resources. To reinforce our mission, we provide “Volunteer Time Off,” enabling employees to dedicate time to causes in their local communities.

Employee Experience and Operations

We continue to invest in HR technology platforms to automate and enhance the employee lifecycle experience, from onboarding to offboarding. Our People Operations function supports a flexible hybrid work environment that balances in-person collaboration with remote efficiency. By streamlining HR administration — including benefits management, leave programs, and internal mobility — we ensure a seamless and supportive operational infrastructure that allows our employees to focus on driving business results.

Competition

We compete in almost every aspect of our business with companies that provide a variety of internet products, services, content, and online advertising. Aspects of our platform also compete with products and services including home services, classifieds, real estate, recommendations, news, alerts (including weather and traffic), and search engines. Of these companies, we most directly compete with social media companies that offer local products to advertisers and users, including large companies such as Meta (including Facebook and Instagram), Alphabet (including Google), and other similar service providers. As we introduce new products, as our platform evolves, or as other companies introduce new products and services, we may become subject to additional competition.

We compete with other companies to attract, engage, and retain users and their engagement. We also compete with other companies to attract and retain advertisers, which depends on our reach and ability to deliver a strong return on investment. Finally, we compete to attract and retain highly talented individuals, particularly software engineers, designers, and product managers.

For additional information, see the section entitled “Risk Factors — Our business is highly competitive. Competition presents an ongoing threat to the success of our business.”

Government Regulation

We are subject to many U.S. federal and state and foreign laws, regulations, and industry standards that involve matters central to our business, including laws and regulations that involve data privacy and protection, intellectual property (including trademark, copyright and patent laws), content regulation, rights of publicity, advertising and marketing, health and safety, competition, protection of

minors, age verification, consumer protection, taxation, anti-bribery, anti-money laundering and corruption, telecommunications, AI and ML, and securities law compliance. Our business may also be affected by the adoption of any new or existing laws or regulations or changes in laws or regulations that would adversely affect the growth, popularity or use of online services or the internet in general; significantly restrict or impose conditions on our ability to collect, store, augment, analyze, use and share data; modify or augment consumer notice or consent requirements before a company can utilize cookies or other tracking technologies; or increase the liability of content platforms like ours. These laws and regulations are constantly evolving and may be interpreted, applied, created, or amended, in a manner that could harm our business.

We rely on a variety of statutory, regulatory and common-law frameworks and defenses relevant to the content available on our platform, including the Digital Millennium Copyright Act (the “DMCA”), the Communications Decency Act (“CDA”) and the fair-use doctrine in the United States, the Digital Services Act in the European Union (the “DSA”), and the Electronic Commerce Directive in the European Union (the “E-Commerce Directive”). However, each of these statutes is subject to uncertain or evolving judicial interpretation and regulatory and legislative amendments. For example, in the United States, laws such as the CDA, which have previously been interpreted to provide substantial protection to interactive computer service providers, have seen Supreme Court challenges and there have been legislative efforts to curtail the CDA’s protections. These efforts could expose us to lawsuits in which we could incur significant costs and could seriously harm our business. In addition, various countries around the world have adopted legislation, including the DSA in the European Union, the Online Safety Act 2021 in Australia, and the Online Safety Act in the United Kingdom, that may impose additional obligations or liability on us associated with user-generated content.

We collect, store, use, share, and otherwise process data, some of which contains personal information. We are therefore subject to U.S. (federal and state) and foreign laws and regulations regarding data privacy and protection, which encompass the processing of personal information from users, employees, and business partners. These laws include, but are not limited to, the European Union’s General Data Protection Regulation (“EU GDPR”), the United Kingdom’s General Data Protection Regulation (“UK GDPR”), Canada’s Personal Information Protection and Electronic Documents Act (“PIPEDA”), Australia’s Privacy Act 1988 and the Australian Privacy Principles (“APPs”), the California Consumer Privacy Act (“CCPA”), and the Virginia Consumer Data Protection Act (“VCDPA”), along with similar consumer privacy laws enacted in more than one third of U.S. states. Legislative proposals concerning content regulation and data protection remain pending before the U.S. Congress, various state legislatures, and foreign governments, and new laws or interpretations of existing laws may require us to modify our data processing practices and incur substantial compliance costs.

We also use AI and ML technologies in our products and operations. Governments are increasingly focused on regulating AI, including through the European Union's Artificial Intelligence Act, the Colorado Artificial Intelligence Act, California Privacy Protection Agency (“CPPA”) regulations directed toward automated decision making technology, and emerging U.S. federal and state-level efforts to regulate AI technologies. These frameworks may impose transparency, risk assessment, or other compliance obligations, or may limit the use of AI technologies, in ways that may affect how we develop and deploy AI-enabled features.

The costs of complying with these laws and regulations, which in some cases can be enforced by private parties in addition to government entities, are high and likely to increase in the future, particularly as the extent of regulation increases, our business grows and our geographic scope expands. Further, the impact of these laws and regulations may disproportionately affect our business in comparison to our peers in the technology sector with greater resources. Any failure to comply may subject us to significant liabilities or penalties, or otherwise adversely affect our business, financial condition, or operating results. Further, it is possible that certain governments may seek to block or limit our products or otherwise impose other restrictions that may affect the accessibility or usability of any or all our products for an extended period of time or indefinitely.

We engage with lawmakers and regulators in the countries and regions in which we do business to monitor legal and regulatory developments and ensure our perspective is heard on matters of importance to us.

For additional information, see the section entitled “Risk Factors — Risks Related to Legal and Regulatory Matters.”

Corporate Information

Our principal executive offices are located at 420 Taylor Street, San Francisco, California 94102 and our telephone number is (415) 344-0333. Our website address is https://www.nextdoor.com. The information contained on, or that can be accessed through, our website is not incorporated by reference into, and is not a part of, this Annual Report. Investors should not rely on any such information in deciding whether to purchase our Class A common stock.

Nextdoor, the Nextdoor logo, and other registered or common law trade names, trademarks, or service marks of Nextdoor appearing in this Annual Report are the property of Nextdoor. This Annual Report contains additional trade names, trademarks, and service marks of other companies that are the property of their respective owners. We do not intend our use or display of other companies’ trade

names, trademarks, or service marks to imply a relationship with, or endorsement or sponsorship of us by, these other companies. Solely for convenience, our trademarks and tradenames referred to in this Annual Report appear without the ® and ™ symbols, but those references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights, or the right of the applicable licensor, to these trademarks and tradenames.

Available Information

Our reports filed with or furnished to the SEC pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), are available, free of charge, on our Investor Relations website at https://investors.nextdoor.com/ as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC. The SEC maintains a website at http://www.sec.gov that contains reports, proxy and information statements, and other information regarding us and other companies that file materials with the SEC electronically. Copies of our reports on Form 10-K, Forms 10-Q, and Forms 8-K, and amendments to those reports may also be obtained, free of charge, electronically through our Investor Relations website located at the web address appearing above as soon as reasonably practicable after we file such material with, or furnish it to, the SEC. We use our Investor Relations website as a means of disclosing material information and for complying with our disclosure obligations under Regulation FD. Accordingly, investors should monitor our Investor Relations website, in addition to following our press releases, SEC filings, and public conference calls and webcasts.

The content of our websites and information that we may post on or provide to online and social media channels and information that can be accessed through our websites or these online and social media channels are not incorporated by reference into this Annual Report or in any other report or document we file with the SEC, and any references to our websites or these online and social media channels are intended to be inactive textual references only.