Nextdoor insider to sell 211,559 shares on NYSE

Nextdoor Holdings, Inc. (NXDR) received a Rule 144 notice from Michael Kiernan covering a planned sale of 211,559 shares of its common stock through Morgan Stanley Smith Barney LLC on the NYSE.

Rhea-AI Filing Summary

Nextdoor Holdings, Inc. (NXDR) received a Rule 144 notice from Michael Kiernan covering a planned sale of 211,559 shares of its common stock through Morgan Stanley Smith Barney LLC on the NYSE. The shares were acquired from previously exercised stock options between August 22, 2019 and April 9, 2025.

Key Figures

Shares to be sold: 211,559 shares Option exercise start date: 08/22/2019 Option exercise end date: 04/09/2025 +2 more

5 metrics

Shares to be sold 211,559 shares Common stock covered by Michael Kiernan’s Rule 144 notice

Option exercise start date 08/22/2019 Beginning of period when stock options were exercised to acquire the shares

Option exercise end date 04/09/2025 End of period when stock options were exercised to acquire the shares

Date of Rule 144 notice 08/21/2026 Date the notice was signed by Michael Kiernan

Exchange NYSE Listed as the exchange for the planned sale of common stock

Key Terms

Rule 144, previously exercised stock options, aggregated with sales

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of 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.

previously exercised stock options financial

"The securities to be sold were acquired upon previously exercised stock options"

aggregated with sales regulatory

"sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales"

FAQ

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

What is being disclosed about NXDR in this Form 144?

The notice discloses that Michael Kiernan intends to sell 211,559 shares of Nextdoor Holdings, Inc. common stock under Rule 144, with the transaction to be handled by Morgan Stanley Smith Barney LLC on the NYSE.

How many NXDR shares does Michael Kiernan plan to sell?

Michael Kiernan plans to sell 211,559 shares of Nextdoor Holdings, Inc. common stock, as stated in the Rule 144 securities information table in the notice.

How were the NXDR shares being sold by Michael Kiernan acquired?

The shares to be sold by Michael Kiernan were acquired upon previously exercised stock options during the period from 08/22/2019 through 04/09/2025, as described in the remarks section.

Which broker is handling the planned NXDR share sale?

The planned sale of Nextdoor Holdings, Inc. shares for Michael Kiernan will be handled by Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, New York, as listed in the securities information section.

On which exchange are Michael Kiernan’s NXDR shares expected to be sold?

The Rule 144 notice lists NYSE as the exchange for the planned sale of Michael Kiernan’s Nextdoor Holdings, Inc. common stock.

What is the date of Michael Kiernan’s Rule 144 notice for NXDR?

The date of notice for Michael Kiernan’s Rule 144 filing regarding Nextdoor Holdings, Inc. shares is 08/21/2026, as shown in the signature section.

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

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Accepted by SEC EDGAR 08/21/2026 - 04:41 PM EDT 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	0002059765
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	MICHAEL KIERNAN
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	211559	505626.01	259381559	08/21/2026	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	08/22/2019	Previously Exercised Stock Options	Issuer			211559	08/22/2019	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

Nothing to Report

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon previously exercised stock options during the period of 08/22/2019 through 04/09/2025.
Date of Notice	08/21/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/22/2026
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/ Michael Kiernan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)