SOBERS SEAN (Chief Financial Officer) sold 7.1% of their position (45.55K shares) of THREDUP INC. on the open market

Open‑market sale worth $202.0K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales

SOBERS SEAN

Filed: 6/3/2026ACC: 0001628280-26-040381

InsiderSOBERS SEANCIK 1688472

→

IssuerTHREDUP INC.CIK 1484778

Officer· Chief Financial Officer

Since Mar 2021

-45.55K

Net shares

Net seller

$202.0K

Total sold

Open market trades

0B · 3S

Total transactions

86.11K acquired · 131.66K disposed

Non-Derivative Transactions6

Class A Common Stock

Direct

M · Option Exercise

+36.67K

Price / share

—

Trade value

—

% of position

6.6%

6/1/2026

555.25K→591.92K

Class A Common Stock

Direct

M · Option Exercise

+25.83K

Price / share

—

Trade value

—

% of position

4.5%

6/1/2026

572.52K→598.36K

Class A Common Stock

Direct

M · Option Exercise

+23.61K

Price / share

—

Trade value

—

% of position

4.0%

6/1/2026

584.69K→608.30K

Class A Common Stock

Direct

S · Sale

−19.40K

Price / share

$4.43

Trade value

$86.02K

% of position

3.3%

6/2/2026

591.92K→572.52K

Class A Common Stock

Direct

S · Sale

−13.67K

Price / share

$4.43

Trade value

$60.60K

% of position

2.3%

6/2/2026

598.36K→584.69K

Class A Common Stock

Direct

S · Sale

−12.49K

Price / share

$4.43

Trade value

$55.39K

% of position

2.1%

6/2/2026

608.30K→595.81K

Total

Net shares

+40.55K

Net value

-$202.01K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	6/1/2026	M · Option Exercise	+36.67K	—	—	6.6%	555.25K	591.92K
Class A Common Stock Direct	6/1/2026	M · Option Exercise	+25.83K	—	—	4.5%	572.52K	598.36K
Class A Common Stock Direct	6/1/2026	M · Option Exercise	+23.61K	—	—	4.0%	584.69K	608.30K
Class A Common Stock Direct	6/2/2026	S · Sale	−19.40K	$4.43	$86.02K	3.3%	591.92K	572.52K
Class A Common Stock Direct	6/2/2026	S · Sale	−13.67K	$4.43	$60.60K	2.3%	598.36K	584.69K
Class A Common Stock Direct	6/2/2026	S · Sale	−12.49K	$4.43	$55.39K	2.1%	608.30K	595.81K
Total			+40.55K		-$202.01K

Derivative Transactions3

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

36.67K shares

−36.67K

Strike price

Held after

513.87K

Exercisable

—

6/1/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

25.83K shares

−25.83K

Strike price

Held after

488.04K

Exercisable

—

6/1/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

23.61K shares

−23.61K

Strike price

Held after

464.43K

Exercisable

—

6/1/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Units Direct	Class A Common Stock36.67K shares	6/1/2026	M · Option Exercise	−36.67K	—	513.87K
Restricted Stock Units Direct	Class A Common Stock25.83K shares	6/1/2026	M · Option Exercise	−25.83K	—	488.04K
Restricted Stock Units Direct	Class A Common Stock23.61K shares	6/1/2026	M · Option Exercise	−23.61K	—	464.43K