ThredUp officer plans 44K-share stock sale

ThredUp officer Sean Sobers filed a Rule 144 notice to sell 44,559 Class A shares valued at about $115,000.

Rhea-AI Filing Summary

ThredUp Inc. (TDUP) officer Sean Sobers filed a notice of proposed sale of Class A common stock under Rule 144. The notice covers 44,559 shares of ThredUp Class A common stock, with an aggregate market value of $115,015.25, and an indicated sale date of September 2, 2026, through Morgan Stanley Smith Barney LLC on NASDAQ. ThredUp reports 111,056,127 Class A shares outstanding as context for this sale. The shares to be sold relate to restricted stock granted as compensation in 2024, 2025, and 2026.

Key Figures

Shares to be sold: 44,559 shares Aggregate market value of proposed sale: $115,015.25 Shares outstanding: 111,056,127 shares +5 more

8 metrics

Shares to be sold 44,559 shares Proposed Rule 144 sale of ThredUp Class A common stock

Aggregate market value of proposed sale $115,015.25 Value of 44,559 shares of ThredUp Class A common stock in the Rule 144 notice

Shares outstanding 111,056,127 shares Class A common stock outstanding referenced in the Rule 144 notice

Recent sale shares 45,554 shares Class A common stock sold on June 2, 2026 during past three months

Aggregate value of recent sale $202,007.30 Value of 45,554 shares sold on June 2, 2026

Restricted stock grant February 26, 2024 18,973 shares Compensation-related restricted stock from issuer

Restricted stock grant January 9, 2025 13,368 shares Compensation-related restricted stock from issuer

Restricted stock grant January 28, 2026 12,218 shares Compensation-related restricted stock from issuer

Key Terms

Rule 144, restricted stock, aggregate market value, Class A common stock

4 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.

restricted stock financial

"Class A common stock | 02/26/2024 | Restricted Stock | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

aggregate market value financial

"Class A common stock | ... | 44559 | 115015.25 | 111056127"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Class A common stock financial

"Class A common stock | Morgan Stanley Smith Barney LLC"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

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

What is Sean Sobers planning to sell of TDUP stock under Rule 144?

The notice reports a proposed sale of 44,559 shares of ThredUp Inc. Class A common stock, with an aggregate market value of $115,015.25, to be sold through Morgan Stanley Smith Barney LLC on September 2, 2026 on NASDAQ.

Who is the ThredUp (TDUP) insider involved in this Rule 144 filing?

The filing is for Sean Sobers, identified as an officer of ThredUp Inc., as the person for whose account the securities are to be sold. The form is a notice of proposed sale of ThredUp Class A common stock under Rule 144.

How many ThredUp (TDUP) shares are outstanding as referenced in this filing?

The notice lists 111,056,127 shares of ThredUp Inc. Class A common stock outstanding, providing context for the size of the proposed 44,559-share Rule 144 sale.

What ThredUp (TDUP) grants are the Rule 144 shares coming from?

The Rule 144 notice links the Class A common stock to restricted stock granted by ThredUp Inc. on February 26, 2024 (18,973 shares), January 9, 2025 (13,368 shares), and January 28, 2026 (12,218 shares), each described as compensation.

Has Sean Sobers recently sold ThredUp (TDUP) shares before this Rule 144 notice?

Yes. During the past three months, the filing reports a sale on June 2, 2026 of 45,554 shares of ThredUp Class A common stock for an aggregate value of $202,007.30.

On which market will the ThredUp (TDUP) Rule 144 shares be sold?

The filing indicates that the 44,559 shares of ThredUp Class A common stock are proposed to be sold on NASDAQ through Morgan Stanley Smith Barney LLC Executive Financial Services.

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

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Available on EDGAR 09/02/2026 - 06:41 PM EDT Accepted by SEC EDGAR 09/02/2026 - 06:40 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	0001688472
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	ThredUp Inc.
SEC File Number	001-40249
Address of Issuer	969 Broadway Suite 200 Oakland CALIFORNIA 94607
Phone	415-402-5202
Name of Person for Whose Account the Securities are To Be Sold	Sean Sobers
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
Class A common stock	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	44559	115015.25	111056127	09/02/2026	NASDAQ

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 *
Class A common stock	02/26/2024	Restricted Stock	Issuer			18973	02/26/2024	Compensation
Class A common stock	01/09/2025	Restricted Stock	Issuer			13368	01/09/2025	Compensation
Class A common stock	01/28/2026	Restricted Stock	Issuer			12218	01/28/2026	Compensation

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Sean Sobers 969 Broadway Suite 200 Oakland CA 94607	Class A Common Stock	06/02/2026	45554	202007.3

144: Remarks and Signature

Remarks
Date of Notice	09/02/2026
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/ Sean Sobers
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)