IPO filing research

Quantinuum Inc.

Services-Computer Integrated Systems Design · QNT

ipo trading trading Nasdaq 424B4

Quantinuum Inc. IPO research page with SEC filing history, offering status, deal terms, structured filing extracts, company news, and comparable IPO context. Latest filing: 424B4 on 2026-06-05. Current deal snapshot: exchange Nasdaq.

Filing Timeline

SEC EDGAR

424B4 priced

Final prospectus

Final prospectus filed after pricing with final deal terms.

First tracked pre-IPO filing for this issuer.

Price $60.00 · 28,000,000 shares · Gross proceeds $1,680,000,000

Class A · Exchange Nasdaq · Ticker QNT · Over-allotment 4,200,000 · Use of proceeds To purchase Common Units from Quantinuum Holdings · Flags cayman_holding_company · Underwriters J.P. Morgan, Morgan Stanley, Jefferies

2026-06-05 · 0001628280-26-041003

8-A12B effective

Exchange Act registration

Registration filed to list the securities under the Exchange Act ahead of trading.

Follows DRS and registers the class of securities for exchange listing.

2026-06-04 · 0001628280-26-040609

CERT inactive

CERT

Pre-IPO filing captured from the SEC submission timeline.

First tracked pre-IPO filing for this issuer.

2026-06-04 · 0001354457-26-000528

EFFECT effective

SEC effectiveness notice

SEC declared the registration statement effective, allowing the offering to proceed.

First tracked pre-IPO filing for this issuer.

2026-06-03 · 9999999995-26-001867

S-1/A amended

Amended registration statement

Updated registration statement filed after SEC comments or deal changes.

First tracked pre-IPO filing for this issuer.

Range $53.00 to $55.00 · 26,500,000 shares · Gross proceeds $1,431,000,000

Class A · Exchange Nasdaq · Ticker QNT · Over-allotment 3,975,000 · Common Units of Quantinuum Holdings, LLC · Use of proceeds To purchase newly issued Common Units from Quantinuum Holdings · Flags units · Underwriters J.P. Morgan, Morgan Stanley, Jefferies

Quantinuum Inc.'s S-1/A filing provides financial data for the periods ending December 31, 2025, 2024, and March 31, 2026, 2025, including pro forma adjustments for the Reorganization and Offering Transactions. The company, a newly incorporated entity, reports significant operating losses, with a net loss of $136.6 million for the three months ended March 31, 2026. Pro forma financials reflect the impact of transactions outlined in the 'Organizational Structure' section, emphasizing the speculative nature of its quantum computing business and challenges in scaling operations.

2026-06-01 · 0001628280-26-039286

S-1/A amended

Amended registration statement

Updated registration statement filed after SEC comments or deal changes.

First tracked pre-IPO filing for this issuer.

Range $45.00 to $50.00 · 21,052,632 shares · Gross proceeds $1,000,023

A · Exchange Nasdaq · Ticker QNT · Over-allotment 3,157,894 · Common Units of Quantinuum Holdings, LLC · Use of proceeds To purchase newly issued Common Units from Quantinuum Holdings · Flags dual_class, units · Underwriters J.P. Morgan, Morgan Stanley, Jefferies

Quantinuum Inc. continues to report significant operating losses, with a $77.2 million loss in Q1 2026 and $199.3 million for 2025. The company emphasizes ongoing challenges in scaling quantum computing systems, achieving commercial viability, and managing R&D costs. Risk factors highlight uncertainties in market adoption, technological breakthroughs, and supply chain dependencies. The filing underscores the speculative nature of investing in a pre-revenue, early-stage quantum computing firm.

2026-05-26 · 0001628280-26-037917

S-1 filed

Initial registration statement

Initial public filing submitted to start the SEC review process.

Follows DRS/A in the pre-IPO sequence.

Class A · Exchange Nasdaq Global Market · Ticker QNT · Use of proceeds To purchase newly issued Common Units from Quantinuum Holdings · Flags dual_class, units · Underwriters J.P. Morgan, Morgan Stanley, Jefferies Evercore ISI

Quantinuum Inc. is conducting an initial public offering (IPO) of Class A common stock, aiming to list on Nasdaq under the symbol 'QNT'. The offering will raise capital to purchase Common Units from Quantinuum Holdings, LLC, with net proceeds used for general corporate purposes. The company will operate as a holding company, owning 100% of Quantinuum Holdings, which holds its core business. The IPO includes a two-class stock structure (Class A and Class B), with Class B holders retaining voting rights but no economic rights. The filing outlines risks related to organizational structure, tax obligations, and reliance on Quantinuum Holdings.

2026-05-08 · 0001628280-26-032836

DRS/A amended

Amended draft registration statement

Updated draft registration filed before the public launch.

Updates the prior DRS/A filing.

Quantinuum Inc. is conducting an initial public offering (IPO) of Class A common stock, with an anticipated price range and listing on Nasdaq under the symbol 'QNT'. The company will have two classes of stock, with Class A and Class B shares entitling holders to one vote each. Quantinuum Inc. will act as a holding company, owning a majority stake in Quantinuum Holdings, LLC, which operates its business. The IPO proceeds will be used to purchase Common Units from Quantinuum Holdings, with additional funds allocated for general corporate purposes. The company is an emerging growth company and has implemented a Tax Receivable Agreement (TRA) with Continuing Common Unitholders.

2026-04-23 · 0001628279-26-000511

DRS/A amended

Amended draft registration statement

Updated draft registration filed before the public launch.

Updates the prior DRS filing.

Quantinuum Inc. filed an amended draft registration statement (DRS/A) for its initial public offering (IPO) of Class A common stock, building on its previous DRS filing. The amendment details the Up-C structure, where public investors hold Class A shares, while Continuing Common Unitholders retain Class B shares and voting rights. The offering aims to raise capital through the sale of shares, with proceeds used to purchase Common Units from Quantinuum Holdings. The filing emphasizes the company's emerging growth status and risks related to its organizational structure and tax arrangements.

2026-03-31 · 0001628279-26-000391

CONFIDENTIAL-S1 filed

Confidential registration lead

Honeywell disclosed on April 22, 2026 that Quantinuum had confidentially submitted a draft Form S-1 to the SEC on February 17, 2026 for a proposed IPO. Reuters reported on May 26, 2026 that Quantinuum publicly launched its U.S. IPO with a $45 to $50 range for about 21.05 million shares, implying up to a $12.7 billion valuation. Reuters then reported on June 1, 2026 that the company upsized the deal to 26.5 million shares at $53 to $55 and expected Nasdaq trading under QNT. Quantinuum said on June 3, 2026 that it priced 28.0 million shares at $60 and expected trading on Nasdaq on June 4.

public prospectus 2026-05-26; pricing 2026-06-03; listing window 2026-06-01 to 2026-06-30

Price $60.00 · Range $53.00 to $55.00 · 28,000,000 shares · Gross proceeds $1,680,000,000

Class A · Exchange Nasdaq · Ticker QNT · Over-allotment 4,200,000 · Flags foreign_private_issuer · Underwriters J.P. Morgan, Morgan Stanley

Quantinuum is a supported confidential-filing lead because the company disclosed a February 17, 2026 confidential S-1 submission, while in-window Reuters and company sources traced the subsequent public filing, upsizing, pricing, and expected Nasdaq debut under QNT.

2026-02-17 · CONFIDENTIAL-9FB06EEA792F0218AD3D

DRS filed

Draft registration statement

Draft registration filed confidentially before the public launch.

First tracked pre-IPO filing for this issuer.

Quantinuum Inc. is conducting its initial public offering (IPO) of Class A common stock, with an anticipated offering price between $ and $. The company, structured as a holding company, will own equity interests in Quantinuum Holdings, LLC, through which it operates. Proceeds from the IPO will be used to purchase Common Units from Quantinuum Holdings. The offering includes a potential 30-day underwriter option to purchase additional shares. Quantinuum Inc. is an emerging growth company, electing reduced reporting requirements under U.S. securities laws.

2026-02-17 · 0001628279-26-000199