424B4424B4
Jun 5, 2026Final prospectus0001628280-26-041003
All companies
424B4Jun 5, 2026Shares eligible to trade · by holder groupJun 5, 2026 → Dec 2, 2026 · 100% unlocked Quantinuum Announces Closing of Upsized Initial Public Offering Quantinuum opens at $68, 13% above IPO pricing Quantinuum Announces Pricing of Upsized Initial Public Offering Honeywell’s Quantinuum raises $1.68 billion in US IPO as quantum computing heats up
Quantinuum
QNTPublicPre-IPOTradable
Public / Pre-IPO / TradableUnited States(NASDAQ Global)Quantum ComputingBest valuation $17.82BSince IPO +13.78%2 markets
Public listing
Listed· NASDAQ Global· Listing market: United StatesListing date
Jun 4, 2026
Final IPO price
$60.00
Shares offered
28,000,000
Offering proceeds
$1.68B
Sources: manual, sec-edgar, sec-harvest, nasdaq
Compare markets
Select one to chart it belowIPO Calendar · NASDAQIPO
QNTPrice
$68.27
24h
-2.19%
Valuation
$17.82B
24h volume
$272.54M
Type
IPO
IPO Calendar · updated 2h ago
Quantinuum IPO unlock schedule & public float
Lock-up schedule, public float and locked shares extracted from Quantinuum's SEC prospectus. Shares shown are eligible to trade — lock-up expiry does not mean holders have sold or will sell.
Total shares (FD)
260.97M
Public float
28M
Locked
232.97M
IPO raise
$1.68B
Next unlock
Dec 2, 2026 · 232.97M
- Lock-up holders232.97M
- IPO public float28M
About Quantinuum
Quantinuum is a quantum computing company that develops quantum hardware, software, middleware, and applications for scientific and enterprise use cases.
What the company does
- Builds trapped-ion quantum computers and related control systems aimed at high-fidelity quantum computation.
- Develops software for quantum chemistry, cybersecurity, optimization, machine learning, and quantum application development.
- Works with research institutions, governments, and enterprises exploring practical quantum computing workflows.
Business profile
Quantinuum is positioned in the quantum computing stack, where hardware quality, error correction, software tooling, and real customer workloads determine commercial progress.
SEC IPO filings
Final prospectusEDGAR filings resolved from QNT / CIK 0002110105.
Jun 4, 2026Exchange registration0001354457-26-000528
8-A12B8-A12B
Jun 4, 2026Exchange registration0001628280-26-040609
Jun 3, 2026Effective9999999995-26-001867
S-1/AS-1/A
Jun 1, 2026Amended0001628280-26-039286
S-1/AS-1/A
May 26, 2026Amended0001628280-26-037917
S-1S-1
May 8, 2026Filed0001628280-26-032836
DRS/Afilename1.htm
Apr 23, 2026Confidential draft0001628279-26-000511
DRS/Afilename1.htm
Mar 31, 2026Confidential draft0001628279-26-000391
Feb 17, 2026Confidential draft0001628279-26-000199
Latest Quantinuum IPO news
Recent sourced articles classified for IPO relevance, with platform-access noise filtered out where possible.
QuantinuumJun 5, 2026IPO filing
Company press release confirming IPO closing and final pricing/listing details for Quantinuum (QNT).
Investing.comJun 4, 2026IPO context
Post-listing trading performance article tied to Quantinuum’s IPO debut.
PR NewswireJun 3, 2026IPO filing
Canonical IPO pricing article for Quantinuum, including $60/share and expected Nasdaq trading date.
Reuters (republished by Investing.com)Jun 3, 2026IPO filing
Major IPO context and proceeds/valuation/trading start coverage directly about Quantinuum.
Quantinuum IPO — frequently asked questions
- When did Quantinuum go public?
- Quantinuum completed its IPO on Jun 4, 2026 on NASDAQ Global under the ticker QNT and now trades publicly.
- What was Quantinuum's IPO price?
- Quantinuum priced its IPO at $60.00 per share.
- Can I buy Quantinuum stock?
- Yes — Quantinuum is publicly traded on NASDAQ Global as QNT. You can follow its live price, valuation and post-IPO performance above.
- What is Quantinuum's valuation?
- Quantinuum's most recent valuation tracked here is $17.82B, derived from live market prices.