SOBERS SEAN (Chief Financial Officer) exercised options at THREDUP INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 3 exercises

SOBERS SEAN

Filed: 9/3/2025ACC: 0001484778-25-000105

InsiderSOBERS SEANCIK 1688472

→

IssuerTHREDUP INC.CIK 1484778

Officer· Chief Financial Officer

Since Mar 2021

-50.51K

Net shares

Net seller

$546.5K

Total sold

Open market trades

0B · 0S

Total transactions

99.46K acquired · 149.96K disposed

Non-Derivative Transactions6

Class A Common Stock

Direct

M · Option Exercise

+36.96K

Price / share

—

Trade value

—

% of position

8.6%

9/1/2025

427.39K→464.35K

Class A Common Stock

Direct

F · Tax Withholding

−18.77K

Price / share

$10.82

Trade value

$203.07K

% of position

4.0%

9/1/2025

464.35K→445.58K

Class A Common Stock

Direct

M · Option Exercise

+36.67K

Price / share

—

Trade value

—

% of position

8.2%

9/1/2025

445.58K→482.25K

Class A Common Stock

Direct

F · Tax Withholding

−18.62K

Price / share

$10.82

Trade value

$201.46K

% of position

3.9%

9/1/2025

482.25K→463.63K

Class A Common Stock

Direct

M · Option Exercise

+25.83K

Price / share

—

Trade value

—

% of position

5.6%

9/1/2025

463.63K→489.46K

Class A Common Stock

Direct

F · Tax Withholding

−13.12K

Price / share

$10.82

Trade value

$141.95K

% of position

2.7%

9/1/2025

489.46K→476.34K

Total

Net shares

+48.95K

Net value

-$546.47K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	9/1/2025	M · Option Exercise	+36.96K	—	—	8.6%	427.39K	464.35K
Class A Common Stock Direct	9/1/2025	F · Tax Withholding	−18.77K	$10.82	$203.07K	4.0%	464.35K	445.58K
Class A Common Stock Direct	9/1/2025	M · Option Exercise	+36.67K	—	—	8.2%	445.58K	482.25K
Class A Common Stock Direct	9/1/2025	F · Tax Withholding	−18.62K	$10.82	$201.46K	3.9%	482.25K	463.63K
Class A Common Stock Direct	9/1/2025	M · Option Exercise	+25.83K	—	—	5.6%	463.63K	489.46K
Class A Common Stock Direct	9/1/2025	F · Tax Withholding	−13.12K	$10.82	$141.95K	2.7%	489.46K	476.34K
Total			+48.95K		-$546.47K

Derivative Transactions3

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

36.96K shares

−36.96K

Strike price

Held after

515.29K

Exercisable

—

9/1/2025

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

36.67K shares

−36.67K

Strike price

Held after

478.63K

Exercisable

—

9/1/2025

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

25.83K shares

−25.83K

Strike price

Held after

452.79K

Exercisable

—

9/1/2025

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Units Direct	Class A Common Stock36.96K shares	9/1/2025	M · Option Exercise	−36.96K	—	515.29K
Restricted Stock Units Direct	Class A Common Stock36.67K shares	9/1/2025	M · Option Exercise	−36.67K	—	478.63K
Restricted Stock Units Direct	Class A Common Stock25.83K shares	9/1/2025	M · Option Exercise	−25.83K	—	452.79K