Nextdoor officer plans sale of 154,893 shares

Nextdoor Holdings, Inc. (NXDR) received a Rule 144 notice indicating that officer Antoinette Orzano How plans to sell 154,893 shares of common stock, to be executed through Morgan Stanley Smith Barney LLC.

Rhea-AI Filing Summary

Nextdoor Holdings, Inc. (NXDR) received a Rule 144 notice indicating that officer Antoinette Orzano How plans to sell 154,893 shares of common stock, to be executed through Morgan Stanley Smith Barney LLC. The shares are to be sold on September 15, 2026 following an exercise of stock options for cash.

In the prior three months, the same person reported additional Rule 144 sales of 35,581 shares on September 2, 2026 and 9,424 shares on July 16, 2026, both under 10b5-1 trading plans. Shares of Nextdoor Holdings, Inc. outstanding were 259,381,559 as of this notice.

Key Figures

Planned shares to be sold: 154,893 shares Aggregate market value of planned sale: $368,645.34 Shares outstanding: 259,381,559 shares +2 more

5 metrics

Planned shares to be sold 154,893 shares Common stock planned for sale on September 15, 2026 under Rule 144

Aggregate market value of planned sale $368,645.34 Value associated with the 154,893 shares of common stock in the securities information section

Shares outstanding 259,381,559 shares Nextdoor Holdings, Inc. common shares outstanding as listed in the notice

Prior 10b5-1 sale on September 2, 2026 35,581 shares for $80,117.24 Rule 144 section for securities sold during the past 3 months

Prior 10b5-1 sale on July 16, 2026 9,424 shares for $23,412.99 Rule 144 section for securities sold during the past 3 months

Key Terms

Rule 144, 10b5-1, Exercise of Stock Options, aggregate market value

4 terms

Rule 144 regulatory

"This notice relates to proposed sales of securities under Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

10b5-1 regulatory

"10b5-1 Sales for ANTOINETTE ORZANO HOW are listed for recent months."

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Exercise of Stock Options financial

"Securities to be Sold state the transaction as Exercise of Stock Options."

aggregate market value financial

"The securities information section shows an aggregate market value of 368645.34."

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing disclose for NXDR?

It discloses that officer Antoinette Orzano How intends to sell 154,893 shares of Nextdoor Holdings, Inc. common stock under Rule 144 on September 15, 2026, following an exercise of stock options for cash.

How many NXDR shares are planned to be sold under this Form 144?

The filing reports a planned sale of 154,893 shares of Nextdoor Holdings, Inc. common stock, to be transacted through Morgan Stanley Smith Barney LLC and listed on the NYSE as of the stated date.

What recent 10b5-1 sales has the NXDR officer reported?

The officer reported prior 10b5-1 sales of 35,581 shares for $80,117.24 on September 2, 2026, and 9,424 shares for $23,412.99 on July 16, 2026, both involving Nextdoor Holdings, Inc. common stock.

What is the basis for the upcoming NXDR share sale?

The shares to be sold on September 15, 2026 arise from an exercise of stock options in Nextdoor Holdings, Inc., with the filing indicating the options are exercised for cash and the resulting shares are to be sold under Rule 144.

How many NXDR shares were outstanding at the time of the notice?

The notice lists 259,381,559 shares of Nextdoor Holdings, Inc. common stock as outstanding in the relevant securities information section accompanying the planned Rule 144 sale.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/15/2026 - 04:35 PM Accepted by SEC EDGAR 09/15/2026 - 04:34 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002083093
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Nextdoor Holdings, Inc.
SEC File Number	001-40246
Address of Issuer	420 Taylor Street San Francisco CALIFORNIA 94102
Phone	4153440333
Name of Person for Whose Account the Securities are To Be Sold	Antoinette Orzano How
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	154893	368645.34	259381559	09/15/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/15/2026	Exercise of Stock Options	Issuer			154893	09/15/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for ANTOINETTE ORZANO HOW 420 Taylor Street San Francisco CA 94102	Common	09/02/2026	35581	80117.24
10b5-1 Sales for ANTOINETTE ORZANO HOW 420 Taylor Street San Francisco CA 94102	Common	07/16/2026	9424	23412.99

144: Remarks and Signature

Remarks
Date of Notice	09/15/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/03/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Antoinette How
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)