---
title: "Quantum Computing (QUBT) Stock Slips after CEO Reveals 10.3% Insider Stake"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/288575436.md"
description: "Quantum Computing Inc. (QUBT) shares fell 1.13% to $12.25 after CEO Dr. Yuping Huang disclosed a 10.33% insider stake via an amended SEC Schedule 13D filing, detailing his ownership of 23.3 million shares following various transactions."
datetime: "2026-06-03T12:17:49.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/288575436.md)
  - [en](https://longbridge.com/en/news/288575436.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/288575436.md)
generator: "portal-rs"
---

# Quantum Computing (QUBT) Stock Slips after CEO Reveals 10.3% Insider Stake

Quantum Computing Inc. (QUBT), a developer of photonics and quantum technology solutions, disclosed that CEO, President, and Chairman Dr. Yuping Huang beneficially owns 23.3 million shares of the company, representing 10.33% of its outstanding common stock.

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The disclosure came in an amended Schedule 13D filed with the SEC. These filings are used when an investor or insider owns more than 5% of a company's voting shares. In this case, the filing gives investors a closer look at Huang's current ownership after a series of sales, option grants, warrant exercises, and share transfers.

Meanwhile, QUBT shares dropped 1.13% on Tuesday, closing at $12.25.

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> **Disclaimer: This article is for reference only and does not constitute any investment advice.**