HOW ANTOINETTE (Chief Accounting Officer) sold 20.70K shares of NEXTDOOR HOLDINGS, INC. on the open market

Open‑market sale worth $51.5K. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

HOW ANTOINETTE

Filed: 10/19/2026ACC: 0001846069-26-000187

InsiderHOW ANTOINETTECIK 2083093

→

IssuerNEXTDOOR HOLDINGS, INC.CIK 1846069

Officer· Chief Accounting Officer

Since Sep 2025

-32.28K

Net shares

Net seller

$81.6K

Total sold

Open market trades

0B · 1S

Total transactions

32.28K acquired · 64.56K disposed

Non-Derivative Transactions9

Class A Common Stock

Direct

M · Option Exercise

+7.35K

Price / share

—

Trade value

—

% of position

New position

10/15/2026

0.00→7.35K

Class A Common Stock

Direct

F · Tax Withholding

−2.63K

Price / share

$2.60

Trade value

$6.85K

% of position

35.9%

10/15/2026

7.35K→4.71K

Class A Common Stock

Direct

M · Option Exercise

+7.35K

Price / share

—

Trade value

—

% of position

155.9%

10/15/2026

4.71K→12.06K

Class A Common Stock

Direct

F · Tax Withholding

−2.63K

Price / share

$2.60

Trade value

$6.85K

% of position

21.8%

10/15/2026

12.06K→9.43K

Class A Common Stock

Direct

M · Option Exercise

+9.48K

Price / share

—

Trade value

—

% of position

100.6%

10/15/2026

9.43K→18.91K

Class A Common Stock

Direct

F · Tax Withholding

−3.40K

Price / share

$2.60

Trade value

$8.84K

% of position

18.0%

10/15/2026

18.91K→15.51K

Class A Common Stock

Direct

M · Option Exercise

+8.11K

Price / share

—

Trade value

—

% of position

52.3%

10/15/2026

15.51K→23.61K

Class A Common Stock

Direct

F · Tax Withholding

−2.91K

Price / share

$2.60

Trade value

$7.56K

% of position

12.3%

10/15/2026

23.61K→20.70K

Class A Common Stock

Direct

S · Sale

−20.70K

Price / share

$2.49

Trade value

$51.53K

% of position

New position

10/16/2026

20.70K→0.00

Total

Net shares

+0.00

Net value

-$81.62K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	10/15/2026	M · Option Exercise	+7.35K	—	—	New position	0.00	7.35K
Class A Common Stock Direct	10/15/2026	F · Tax Withholding	−2.63K	$2.60	$6.85K	35.9%	7.35K	4.71K
Class A Common Stock Direct	10/15/2026	M · Option Exercise	+7.35K	—	—	155.9%	4.71K	12.06K
Class A Common Stock Direct	10/15/2026	F · Tax Withholding	−2.63K	$2.60	$6.85K	21.8%	12.06K	9.43K
Class A Common Stock Direct	10/15/2026	M · Option Exercise	+9.48K	—	—	100.6%	9.43K	18.91K
Class A Common Stock Direct	10/15/2026	F · Tax Withholding	−3.40K	$2.60	$8.84K	18.0%	18.91K	15.51K
Class A Common Stock Direct	10/15/2026	M · Option Exercise	+8.11K	—	—	52.3%	15.51K	23.61K
Class A Common Stock Direct	10/15/2026	F · Tax Withholding	−2.91K	$2.60	$7.56K	12.3%	23.61K	20.70K
Class A Common Stock Direct	10/16/2026	S · Sale	−20.70K	$2.49	$51.53K	New position	20.70K	0.00
Total			+0.00		-$81.62K

Derivative Transactions4

Restricted Stock Units (RSU)

Direct

M · Option Exercise

Converts to

Class A Common Stock

7.35K shares

−7.35K

Strike price

Held after

14.69K

Exercisable

—

10/15/2026

Restricted Stock Units (RSU)

Direct

M · Option Exercise

Converts to

Class A Common Stock

7.35K shares

−7.35K

Strike price

Held after

44.08K

Exercisable

—

10/15/2026

Restricted Stock Units (RSU)

Direct

M · Option Exercise

Converts to

Class A Common Stock

9.48K shares

−9.48K

Strike price

Held after

66.35K

Exercisable

—

10/15/2026

Restricted Stock Units (RSU)

Direct

M · Option Exercise

Converts to

Class A Common Stock

8.11K shares

−8.11K

Strike price

Held after

81.05K

Exercisable

—

10/15/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Units (RSU) Direct	Class A Common Stock7.35K shares	10/15/2026	M · Option Exercise	−7.35K	—	14.69K
Restricted Stock Units (RSU) Direct	Class A Common Stock7.35K shares	10/15/2026	M · Option Exercise	−7.35K	—	44.08K
Restricted Stock Units (RSU) Direct	Class A Common Stock9.48K shares	10/15/2026	M · Option Exercise	−9.48K	—	66.35K
Restricted Stock Units (RSU) Direct	Class A Common Stock8.11K shares	10/15/2026	M · Option Exercise	−8.11K	—	81.05K