Filed by Khosla Ventures Acquisition Co II.

Pursuant to Rule 425 under the Securities Act of 1933

and deemed filed pursuant to Rule 14a-12

of the Securities Exchange Act of 1934

Subject Company: Khosla Ventures Acquisition Co. II

Commission File No. 001-40246

Email from Investor Relations

From: Nextdoor Investor Relations

Subject: An update on Nextdoor: funding for our next leg of growth

Time: 7:01am ET

Dear Investors,

We are pleased to announce today an important milestone on Nextdoor’s path to becoming a public company. We will be doing so through a merger with Khosla Ventures Acquisition Co. II (Nasdaq:KVSB), a special purpose acquisition company sponsored by an affiliate of Khosla Ventures. We expect the transaction to result in approximately $686 million in gross proceeds, including a $270 million fully committed PIPE. We want to thank you, our investors, for your support, belief in our vision, and role in helping us reach this important milestone. The opportunity ahead of us has never been more exciting, and we look forward to our continued journey together. Please see the full press release here. If you have questions, you can reach out to me or our Investor Relations team, led by Matt Anderson and Arushi Sharma.

Thank you,

Mike, Matt, and Arushi

Forward-Looking Statements

This communication contains certain forward-looking statements within the meaning of the federal securities laws with respect to the proposed transaction between Nextdoor, Inc. (“Nextdoor”) and Kholsa Ventures Acquisition Co. II (“KVSB”). These forward-looking statements generally are identified by the words “believe,” “project,” “expect,” “anticipate,” “estimate,” “intend,” “strategy,” “future,” “opportunity,” “plan,” “may,” “should,” “will,” “would,” “will be,” “will continue,” “will likely result,” and similar expressions. Forward-looking statements are predictions, projections and other statements about future events that are based on current expectations and assumptions and, as a result, are subject to risks and uncertainties. Many factors could cause actual future events to differ materially from the forward-looking statements in this communication. You should carefully consider the risks and uncertainties described in the “Risk Factors” section of KVSB’s Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, the registration statement on Form S-4, and other documents filed by KVSB from time to time with the SEC. These filings identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and Nextdoor and KVSB assume no obligation and do not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise. Neither Nextdoor nor KVSB gives any assurance that either Nextdoor or KVSB will achieve its expectations.

Additional Information and Where to Find It / Non-Solicitation

In connection with the proposed transaction, KVSB intends to file a proxy statement with the U.S. Securities and Exchange Commission (“SEC”). The proxy statement will be sent to the stockholders of KVSB. KVSB and Nextdoor also will file other documents regarding the proposed transaction with the SEC. Before making any voting decision, investors and security holders of KVSB are urged to read the proxy statement and all other relevant documents filed or that will be filed with the SEC in connection with the proposed transaction as they become available because they will contain important information about the proposed transaction. Investors and security holders will be able to obtain free copies of the proxy statement and all other relevant documents filed or that will be filed with the SEC by KVSB and Nextdoor through the website maintained by the SEC at www.sec.gov.

Participants in Solicitation

KVSB and Nextdoor and their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from KVSB’s stockholders in connection with the proposed transaction. Information about KVSB’s directors and executive officers and their ownership of KVSB’s securities is set forth in KVSB’s filings with the SEC. To the extent that holdings of KVSB’s securities have changed since the amounts printed in KVSB’s Registration Statement on Form S-1, such changes have been or will be reflected on Statements of Change in Ownership on Form 4 filed with the SEC. A list of the names of such directors and executive officers and information regarding their interests in the business combination will be contained in the proxy statement/prospectus when available. You may obtain free copies of these documents as described in the preceding paragraph.

No Offer or Solicitation

These communications do not constitute an offer to sell or the solicitation of an offer to buy any securities, or a solicitation of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act, or an exemption therefrom.

From: Mike Doyle

Subject: An update on Nextdoor: funding for our next leg of growth

Time: Tuesday, 7/6 following announcement

Dear [Analyst],

We are pleased to announce today an important milestone on Nextdoor’s path to becoming a public company. We will be doing so through a merger with Khosla Ventures Acquisition Co. II (Nasdaq:KVSB), a special purpose acquisition company sponsored by an affiliate of Khosla Ventures. We expect the transaction to result in approximately $686 million in gross proceeds, including a $270 million fully committed PIPE. The full press release is here, and Nextdoor and KVSB have prepared a recorded investor presentation that will be available at 8am ET. We wanted to be the first to share the news with you and also to thank you for your support thus far and for taking the time to learn about our story. We are looking forward to deepening our relationship and continuing to work with you.

On our end, you already know our CEO, Sarah Friar and CFO, Mike Doyle. We also want to more formally introduce you to Matt Anderson, our Head of Finance & Strategy and Investor Relations, and Arushi Sharma. Together, Matt and Arushi will lead our Investor Relations efforts.

Our team will share more details in the coming weeks about our Analyst Day in August, when we will review our presentation and take Q&A, and our Investor Day in September, when we will introduce you to more of our leadership team and go into greater depth about our product strategy, advertiser partnerships, and financials. In the meantime, please let us know if you have any questions.

Thank you,

Mike

Additional Information and Where to Find It / Non-Solicitation

In connection with the proposed transaction, KVSB intends to file a proxy statement with the SEC. The proxy statement will be sent to the stockholders of KVSB. KVSB and Nextdoor also will file other documents regarding the proposed transaction with the SEC. Before making any voting decision, investors and security holders of KVSB are urged to read the proxy statement and all other relevant documents filed or that will be filed with the SEC in connection with the proposed

transaction as they become available because they will contain important information about the proposed transaction. Investors and security holders will be able to obtain free copies of the proxy statement and all other relevant documents filed or that will be filed with the SEC by KVSB and Nextdoor through the website maintained by the SEC at www.sec.gov.

Participants in Solicitation

KVSB and Nextdoor and their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from KVSB’s stockholders in connection with the proposed transaction. Information about KVSB’s directors and executive officers and their ownership of KVSB’s securities is set forth in KVSB’s filings with the SEC. To the extent that holdings of KVSB’s securities have changed since the amounts printed in KVSB’s Registration Statement on Form S-1, such changes have been or will be reflected on Statements of Change in Ownership on Form 4 filed with the SEC. A list of the names of such directors and executive officers and information regarding their interests in the business combination will be contained in the proxy statement/prospectus when available. You may obtain free copies of these documents as described in the preceding paragraph.

No Offer or Solicitation

These communications do not constitute an offer to sell or the solicitation of an offer to buy any securities, or a solicitation of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act, or an exemption therefrom.

Forward-Looking Statements

This communication contains certain forward-looking statements within the meaning of the federal securities laws with respect to the proposed transaction between Nextdoor and KVSB. These forward-looking statements generally are identified by the words “believe,” “project,” “expect,” “anticipate,” “estimate,” “intend,” “strategy,” “future,” “opportunity,” “plan,” “may,” “should,” “will,” “would,” “will be,” “will continue,” “will likely result,” and similar expressions. Forward-looking statements are predictions, projections and other statements about future events that are based on current expectations and assumptions and, as a result, are subject to risks and uncertainties. Many factors could cause actual future events to differ materially from the

forward-looking statements in this communication. You should carefully consider the risks and uncertainties described in the “Risk Factors” section of KVSB’s Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, the registration statement on Form S-4, and other documents filed by KVSB from time to time with the SEC. These filings identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and Nextdoor and KVSB assume no obligation and do not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise. Neither Nextdoor nor KVSB gives any assurance that either Nextdoor or KVSB will achieve its expectations.

From: Nextdoor Investor Relations

Subject: An update on Nextdoor: funding for our next leg of growth

To: [See list above]

Time: Tuesday, 7/6 following announcement

Greetings,

We are pleased to announce today an important milestone on Nextdoor’s path to becoming a public company. We will be doing so through a merger with Khosla Ventures Acquisition Co. II (Nasdaq:KVSB), a special purpose acquisition company sponsored by an affiliate of Khosla Ventures. We expect the transaction to result in approximately $686 million in gross proceeds, including a $270 million fully committed PIPE. The full press release is here, and Nextdoor and KVSB have prepared a recorded investor presentation that will be available at 8am ET. We wanted to be the first to share the news with you and to express that we are excited to get to know and work with you more.

We also wanted to take this opportunity to introduce you to the Nextdoor team: Mike Doyle, CFO, Matt Anderson, Head of Finance & Strategy and Investor Relations, and Arushi Sharma, Investor Relations.

Our team will share more details in the coming weeks about our Analyst Day in August, when we will review our presentation and take Q&A, and our Investor Day in September, when we will introduce you to more of our leadership team and go into greater depth about our product strategy, advertiser partnerships, and financials. In the meantime, please let us know if you have any questions.

Thank you,

Mike, Matt, and Arushi

Additional Information and Where to Find It / Non-Solicitation

In connection with the proposed transaction, KVSB intends to file a proxy statement with the SEC. The proxy statement will be sent to the stockholders of KVSB. KVSB and Nextdoor also will file other documents regarding the proposed transaction with the SEC. Before making any voting decision, investors and security holders of KVSB are urged to read the proxy statement and all other relevant documents filed or that will be filed with the SEC in connection with the proposed transaction as they become available because they will contain important information about the proposed transaction. Investors and security holders will be able to obtain free copies of the proxy statement and all other relevant documents filed or that will be filed with the SEC by KVSB and Nextdoor through the website maintained by the SEC at www.sec.gov.

Participants in Solicitation

KVSB and Nextdoor and their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from KVSB’s stockholders in connection with the proposed transaction. Information about KVSB’s directors and executive officers and their ownership of KVSB’s securities is set forth in KVSB’s filings with the SEC. To the extent that holdings of KVSB’s securities have changed since the amounts printed in KVSB’s Registration Statement on Form S-1, such changes have been or will be reflected on Statements of Change in Ownership on Form 4 filed with the SEC. A list of the names of such directors and executive officers and information regarding their interests in the business combination will be contained in the proxy statement/prospectus when available. You may obtain free copies of these documents as described in the preceding paragraph.

No Offer or Solicitation

These communications do not constitute an offer to sell or the solicitation of an offer to buy any securities, or a solicitation of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act, or an exemption therefrom.

Forward-Looking Statements

This communication contains certain forward-looking statements within the meaning of the federal securities laws with respect to the proposed transaction between Nextdoor and KVSB. These forward-looking statements generally are identified by the words “believe,” “project,” “expect,” “anticipate,” “estimate,” “intend,” “strategy,” “future,” “opportunity,” “plan,” “may,” “should,” “will,” “would,” “will be,” “will continue,” “will likely result,” and similar expressions. Forward-looking statements are predictions, projections and other statements about future events that are based on current expectations and assumptions and, as a result, are subject to risks and uncertainties. Many factors could cause actual future events to differ materially from the forward-looking statements in this communication. You should carefully consider the risks and uncertainties described in the “Risk Factors” section of KVSB’s Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, the registration statement on Form S-4, and other documents filed by KVSB from time to time with the SEC. These filings identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and Nextdoor and KVSB assume no obligation and do not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise. Neither Nextdoor nor KVSB gives any assurance that either Nextdoor or KVSB will achieve its expectations.