Quantum-Si Inc
Measuring & Controlling Devices, NEC · BRANFORD · CT
High confidence (85%)
Updated Oct 15, 2026, 12:02 AM
What is happening
Derived by rule set status-rules-2026.09.7
The company stopped being publicly listed. A listing ends on the close of a merger as surely as it ends in failure, and the filing does not say which happened here.
Latest material event: Quantum-Si Inc received a delisting notice from its exchange (Jul 23, 2026)
Timeline
Every material event, newest first. History is never overwritten.
Quantum-Si Inc received a delisting notice from its exchange
Jul 23, 2026
Delisting notice received
- SEC EDGAR — “Item 3.01. Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. On July 23, 2026, Quantum-Si Incorporated (the Company ) received written notice (the Notice ) from the Listing Qualifications Department (the Staff ) of The Nasdaq Stock Market LLC ( Nasdaq ) notifying the Company that, because the closing bid price for the Company s Class A common stock, par value $0.0001 per share (the Common Stock ), has fallen below $1.00 per share for 30 consecutive business days, the Company no longer meets the minimum bid price requirement for continued inclu…”
Quantum-Si Inc was delisted from its exchange
Jun 10, 2026
Delisting effective
- SEC EDGAR — “X0203 0001354457 Nasdaq Stock Market LLC 0001816431 Quantum-Si Inc 001-39486 452 Fifth Avenue, 21st Floor New York NY NEW YORK 10018 410-375-0050 warrant 17 CFR 240.12d2-2(a)(2) Katelin Rowe CDO Analyst 2026-06-10”
Company information
- Founded
- —
- Employees (estimate)
- —
- Industry
- Measuring & Controlling Devices, NEC
- Subindustry
- —
- Listing
- SEC lists the ticker QSI on Nasdaq.
- SEC CIK
- 0001816431
- Website
- —
- —
- Headquarters
- BRANFORD, CT
- Also known as
- HighCape Capital Acquisition Corp.
- Legal entities
- Quantum-Si Inc
Sources
Every material source used to build this profile.
SEC Company Submissions (TIER 1 · UNVERIFIED)
Quantum-Si Inc — Measuring & Controlling Devices, NEC (SIC 3829) — BRANFORD, CT
View source recordSEC EDGAR (TIER 1 · UNVERIFIED)
Item 3.01. Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. On July 23, 2026, Quantum-Si Incorporated (the Company ) received written notice (the Notice ) from the Listing Qualifications Department (the Staff ) of The Nasdaq Stock Market LLC ( Nasdaq ) notifying the Company that, because the closing bid price for the Company s Class A common stock, par value $0.0001 per share (the Common Stock ), has fallen below $1.00 per share for 30 consecutive business days, the Company no longer meets the minimum bid price requirement for continued inclu…
View source recordSEC EDGAR (TIER 1 · UNVERIFIED)
X0203 0001354457 Nasdaq Stock Market LLC 0001816431 Quantum-Si Inc 001-39486 452 Fifth Avenue, 21st Floor New York NY NEW YORK 10018 410-375-0050 warrant 17 CFR 240.12d2-2(a)(2) Katelin Rowe CDO Analyst 2026-06-10
View source record
Status history
Every derived status, with the rule that produced it.
- DISTRESS_SIGNAL → NO_LONGER_LISTEDPUBLIC_LISTING_ENDED · Sep 18, 2026, 01:29 AM
The company stopped being publicly listed. A listing ends on the close of a merger as surely as it ends in failure, and the filing does not say which happened here.
- DISTRESS_SIGNAL → DISTRESS_SIGNALLISTING_STANDARDS_WARNING · Sep 18, 2026, 01:14 AM
An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.
- DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 15, 2026, 12:34 PM
An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.
- DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 12, 2026, 12:15 AM
An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.
- DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 03:27 AM
An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.
- UNKNOWN → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 03:12 AM
The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.