Stamps.com Stock - Sunday background on the shipping software specialist

Stamps.com Stock trades off the public radar since its 2021 take-private by Thoma Bravo, but the company remains a key US e-commerce shipping software provider. A Sunday background review looks at its business model, history and where the shares last changed hands.

Edited by ad hoc news Background & Management Desk. Verified prior to publication on 06/21/2026, 20:56 UTC. Details in the imprint.

Stamps.com (US85887U1034) is no longer listed on a public exchange after its 2021 acquisition by private equity firm Thoma Bravo, so there is no fresh market-moving stock news today, and this Sunday article instead focuses on background and the company’s evolution.

A private equity-owned shipper

Stamps.com was taken private in 2021, when Thoma Bravo agreed to acquire the then-Nasdaq-listed company in an all-cash transaction valued at about $6.6 billion, according to the IR release dated 07/09/2021.

The deal closed later that year, and Stamps.com stock ceased trading on Nasdaq under the ticker STMP, removing the company from public-market coverage and daily quote reporting.

Sunday focus on background

With no current exchange listing, there are no consensus estimates or analyst rating changes published by major houses on Stamps.com today, and weekend attention instead centers on the company’s strategic positioning as a shipping software provider for e-commerce and small businesses.

For investors tracking legacy positions or private-market exposure via Thoma Bravo funds, the key questions are operational execution, competitive landscape in postage and shipping software, and how the business integrates with the sponsor’s broader software portfolio.

How the company makes money

Stamps.com generates revenue primarily from subscription-based internet postage and shipping solutions, including its core Stamps.com-branded online postage service, shipping platforms such as ShipStation and ShipEngine, and related transaction fees for carrier labels and value-added services.

Where the stock trades today

Stamps.com was delisted from Nasdaq following its acquisition by Thoma Bravo in 2021, and there is currently no active public share price or real-time quote available for the former STMP listing.

Key facts on Stamps.com

• Company: Stamps.com Inc.
• ISIN: US85887U1034
• Ticker: Previously STMP (Nasdaq, delisted)
• Sector / Industry: Information Technology / Application Software

This article was AI-assisted and editorially reviewed. Price and company data without warranty; prices and dates may change at short notice. No investment advice, no buy or sell recommendation. Trading securities involves risk up to total loss of capital.