HOW ANTOINETTE (Chief Accounting Officer) sold 39.1% of their position (15.60K shares) of NEXTDOOR HOLDINGS, INC. on the open market

Open‑market sale worth $23.6K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

HOW ANTOINETTE

Filed: 4/17/2026ACC: 0001846069-26-000082

InsiderHOW ANTOINETTECIK 2083093

→

IssuerNEXTDOOR HOLDINGS, INC.CIK 1846069

Officer· Chief Accounting Officer

Since Sep 2025

-27.82K

Net shares

Net seller

$42.2K

Total sold

Open market trades

0B · 1S

Total transactions

33.85K acquired · 61.67K disposed

Non-Derivative Transactions11

Class A Common Stock

Direct

M · Option Exercise

+6.57K

Price / share

—

Trade value

—

% of position

36.0%

4/15/2026

18.27K→24.84K

Class A Common Stock

Direct

F · Tax Withholding

−2.33K

Price / share

$1.52

Trade value

$3.54K

% of position

9.4%

4/15/2026

24.84K→22.51K

Class A Common Stock

Direct

M · Option Exercise

+3.11K

Price / share

—

Trade value

—

% of position

13.8%

4/15/2026

22.51K→25.62K

Class A Common Stock

Direct

F · Tax Withholding

−1.11K

Price / share

$1.52

Trade value

$1.68K

% of position

4.3%

4/15/2026

25.62K→24.52K

Class A Common Stock

Direct

M · Option Exercise

+7.35K

Price / share

—

Trade value

—

% of position

30.0%

4/15/2026

24.52K→31.86K

Class A Common Stock

Direct

F · Tax Withholding

−2.67K

Price / share

$1.52

Trade value

$4.06K

% of position

8.4%

4/15/2026

31.86K→29.19K

Class A Common Stock

Direct

M · Option Exercise

+7.35K

Price / share

—

Trade value

—

% of position

25.2%

4/15/2026

29.19K→36.54K

Class A Common Stock

Direct

F · Tax Withholding

−2.67K

Price / share

$1.52

Trade value

$4.06K

% of position

7.3%

4/15/2026

36.54K→33.87K

Class A Common Stock

Direct

M · Option Exercise

+9.48K

Price / share

—

Trade value

—

% of position

28.0%

4/15/2026

33.87K→43.35K

Class A Common Stock

Direct

F · Tax Withholding

−3.45K

Price / share

$1.52

Trade value

$5.24K

% of position

7.9%

4/15/2026

43.35K→39.90K

Class A Common Stock

Direct

S · Sale

−15.60K

Price / share

$1.51

Trade value

$23.60K

% of position

39.1%

4/16/2026

39.90K→24.30K

Total

Net shares

+6.03K

Net value

-$42.18K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	4/15/2026	M · Option Exercise	+6.57K	—	—	36.0%	18.27K	24.84K
Class A Common Stock Direct	4/15/2026	F · Tax Withholding	−2.33K	$1.52	$3.54K	9.4%	24.84K	22.51K
Class A Common Stock Direct	4/15/2026	M · Option Exercise	+3.11K	—	—	13.8%	22.51K	25.62K
Class A Common Stock Direct	4/15/2026	F · Tax Withholding	−1.11K	$1.52	$1.68K	4.3%	25.62K	24.52K
Class A Common Stock Direct	4/15/2026	M · Option Exercise	+7.35K	—	—	30.0%	24.52K	31.86K
Class A Common Stock Direct	4/15/2026	F · Tax Withholding	−2.67K	$1.52	$4.06K	8.4%	31.86K	29.19K
Class A Common Stock Direct	4/15/2026	M · Option Exercise	+7.35K	—	—	25.2%	29.19K	36.54K
Class A Common Stock Direct	4/15/2026	F · Tax Withholding	−2.67K	$1.52	$4.06K	7.3%	36.54K	33.87K
Class A Common Stock Direct	4/15/2026	M · Option Exercise	+9.48K	—	—	28.0%	33.87K	43.35K
Class A Common Stock Direct	4/15/2026	F · Tax Withholding	−3.45K	$1.52	$5.24K	7.9%	43.35K	39.90K
Class A Common Stock Direct	4/16/2026	S · Sale	−15.60K	$1.51	$23.60K	39.1%	39.90K	24.30K
Total			+6.03K		-$42.18K

Derivative Transactions5

Restricted Stock Units (RSU)

Direct

M · Option Exercise

Converts to

Class A Common Stock

6.57K shares

−6.57K

Strike price

Held after

0.00

Exercisable

—

4/15/2026

Restricted Stock Units (RSU)

Direct

M · Option Exercise

Converts to

Class A Common Stock

3.11K shares

−3.11K

Strike price

Held after

0.00

Exercisable

—

4/15/2026

Restricted Stock Units (RSU)

Direct

M · Option Exercise

Converts to

Class A Common Stock

7.35K shares

−7.35K

Strike price

Held after

29.39K

Exercisable

—

4/15/2026

Restricted Stock Units (RSU)

Direct

M · Option Exercise

Converts to

Class A Common Stock

7.35K shares

−7.35K

Strike price

Held after

58.77K

Exercisable

—

4/15/2026

Restricted Stock Units (RSU)

Direct

M · Option Exercise

Converts to

Class A Common Stock

9.48K shares

−9.48K

Strike price

Held after

85.31K

Exercisable

—

4/15/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Units (RSU) Direct	Class A Common Stock6.57K shares	4/15/2026	M · Option Exercise	−6.57K	—	0.00
Restricted Stock Units (RSU) Direct	Class A Common Stock3.11K shares	4/15/2026	M · Option Exercise	−3.11K	—	0.00
Restricted Stock Units (RSU) Direct	Class A Common Stock7.35K shares	4/15/2026	M · Option Exercise	−7.35K	—	29.39K
Restricted Stock Units (RSU) Direct	Class A Common Stock7.35K shares	4/15/2026	M · Option Exercise	−7.35K	—	58.77K
Restricted Stock Units (RSU) Direct	Class A Common Stock9.48K shares	4/15/2026	M · Option Exercise	−9.48K	—	85.31K