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Nautilus Biotechnology, Inc.NAUT

Class A NAUTCIK 0001808805

Cash in trust

$150M

$149,563,934

Trust per share

$10.00

Redemption value

IPO

Aug 2020

$150M raised

Combination deadline

—

Not disclosed

Filings on record

327

Latest Oct 27, 2026

Business combination

Target
Not disclosed in an indexed filing
Announced
Feb 8, 2021
Closed
Jun 10, 2021

Overview

Nautilus Biotechnology, Inc. is a special purpose acquisition company incorporated and registered with the SEC under CIK 0001808805. It completed its initial public offering in Aug 2020, raising $150M in gross proceeds and listing on Nasdaq. Class A shares trade under the ticker NAUT on Nasdaq. The vehicle is sponsored by ARYA Sciences Holdings III, a Islands exempted through ARYA Sciences Holdings III, a Cayman Islands exempted limited. The mandate targets healthcare. Business combination closed; the company trades under a new ticker.

“we intend to focus on industries that complement our management team’s background, and to capitalize on the ability of our management team to identify and acquire a business, focusing on the healthcare or healthcare related industries.”
The mandate, as stated in the IPO prospectus

Reading the filings

Arithmetic on what Nautilus Biotechnology, Inc. has disclosed, written the way a desk would read it. These are observations, not a rating. Nothing here scores the vehicle or implies a view on it.

  • Trust versus the $10 unit

    The trust holds $10.00 per public share, effectively the $10.00 the units were sold at, so little or no interest has accrued to the account yet.

  • Sponsor promote

    The sponsor's founder block is 3,593,750 shares against 14,950,000 public shares, or 19.4% of the combined count, acquired before the IPO at nominal cost. That promote is the structural dilution every public shareholder carries into a combination, and it is why the economics of a de-SPAC differ so sharply from a conventional IPO.

  • Sponsor record

    ARYA Sciences Holdings III, a Islands exempted has launched 2 vehicles. Of the 2 that have resolved, 2 closed a combination and 0 liquidated, a 100% completion rate. A sponsor's record is not a forecast, but it does tell you whether the team has taken a deal across the line before.

  • Underwriting

    Goldman Sachs led the offering. It has been named on 97 SPAC IPOs, book-running 59 of them, and 58.3% of its resolved vehicles closed a deal. The syndicate has no control over whether a sponsor finds a target, but the quality of the book at pricing shapes who ends up holding the units.

How busy it has been

Filings per month since the first one. A vehicle that has gone quiet with a deadline ahead is a different proposition from one that is still working.

261302020-042026-10

327 filings in all. 9 in the last three months, against a busiest month of 26.

News on Nautilus Biotechnology, Inc.

Last 90 days

SEC filing history

Free tier: filings older than 24 hours
  • 8-K

    Current report

    Items 2.02, 9.01 · Accession 0001808805-26-000049

    Oct 26, 2026

    1d ago

    View on EDGAR ↗
  • EFFECT

    Notice of effectiveness

    Accession 9999999995-26-003012

    Sep 21, 2026

    1mo ago

    View on EDGAR ↗
  • 424B5

    424B5

    Accession 0001808805-26-000047

    Sep 18, 2026

    1mo ago

    View on EDGAR ↗
  • SCHEDULE 13D/A

    SCHEDULE 13D/A filing

    Accession 0001231919-26-001165

    Sep 11, 2026

    1mo ago

    View on EDGAR ↗
  • 8-K

    Entry into a material definitive agreement; Termination of a material definitive agreement

    Items 1.01, 1.02, 9.01 · Accession 0001808805-26-000041

    Sep 11, 2026

    1mo ago

    View on EDGAR ↗
  • S-3

    S-3

    Accession 0001808805-26-000040

    Sep 11, 2026

    1mo ago

    View on EDGAR ↗
  • SCHEDULE 13D/A

    SCHEDULE 13D/A filing

    Accession 0001725721-26-000006

    Aug 28, 2026

    2mo ago

    View on EDGAR ↗
  • SCHEDULE 13D/A

    SCHEDULE 13D/A filing

    Accession 0001193125-26-352644

    Aug 14, 2026

    2mo ago

    View on EDGAR ↗
  • 10-Q

    Quarterly report

    Accession 0001808805-26-000034

    Jul 28, 2026

    3mo ago

    View on EDGAR ↗
  • 8-K

    Current report

    Items 2.02, 9.01 · Accession 0001808805-26-000030

    Jul 27, 2026

    3mo ago

    View on EDGAR ↗
  • SCHEDULE 13D/A

    SCHEDULE 13D/A filing

    Accession 0001725721-26-000004

    Jun 30, 2026

    3mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001543792-26-000002

    Jun 22, 2026

    4mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001234663-26-000002

    Jun 22, 2026

    4mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001797672-26-000004

    Jun 22, 2026

    4mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001381752-26-000001

    Jun 22, 2026

    4mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001807359-26-000008

    Jun 22, 2026

    4mo ago

    View on EDGAR ↗
  • 8-K

    Submission of matters to a vote of security holders

    Item 5.07 · Accession 0001808805-26-000027

    Jun 18, 2026

    4mo ago

    View on EDGAR ↗
  • SCHEDULE 13D/A

    SCHEDULE 13D/A filing

    Accession 0001725721-26-000002

    Jun 4, 2026

    4mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001231919-26-000599

    Jun 4, 2026

    4mo ago

    View on EDGAR ↗
  • ARS

    ARS

    Accession 0001808805-26-000025

    Apr 28, 2026

    6mo ago

    View on EDGAR ↗
  • DEFA14A

    Additional proxy soliciting material

    Accession 0001808805-26-000024

    Apr 28, 2026

    6mo ago

    View on EDGAR ↗
  • DEF 14A

    Definitive proxy statement

    Accession 0001808805-26-000023

    Apr 28, 2026

    6mo ago

    View on EDGAR ↗
  • 10-Q

    Quarterly report

    Accession 0001808805-26-000022

    Apr 28, 2026

    6mo ago

    View on EDGAR ↗
  • 8-K

    Current report

    Items 2.02, 9.01 · Accession 0001808805-26-000015

    Apr 28, 2026

    6mo ago

    View on EDGAR ↗
  • SCHEDULE 13D/A

    SCHEDULE 13D/A filing

    Accession 0001378830-26-000005

    Mar 5, 2026

    7mo ago

    View on EDGAR ↗
  • SCHEDULE 13D/A

    SCHEDULE 13D/A filing

    Accession 0001857948-26-000003

    Mar 5, 2026

    7mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001378830-26-000003

    Mar 4, 2026

    7mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001856938-26-000001

    Mar 4, 2026

    7mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001857948-26-000001

    Mar 4, 2026

    7mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001378830-26-000001

    Mar 4, 2026

    7mo ago

    View on EDGAR ↗

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Nautilus Biotechnology, Inc.: questions answered

What is Nautilus Biotechnology, Inc. (NAUT)?

Nautilus Biotechnology, Inc. is a special purpose acquisition company incorporated and registered with the SEC under CIK 0001808805. It completed its initial public offering in Aug 2020, raising $150M in gross proceeds and listing on Nasdaq. Class A shares trade under the ticker NAUT on Nasdaq. The vehicle is sponsored by ARYA Sciences Holdings III, a Islands exempted through ARYA Sciences Holdings III, a Cayman Islands exempted limited. The mandate targets healthcare. Business combination closed; the company trades under a new ticker.

How much does Nautilus Biotechnology, Inc. hold in trust?

Approximately $149,563,934, or about $10.00 per public share, as at the most recent filing on record. Trust balances move: shareholders redeem at extension votes and at the combination vote, and sponsors pay contributions in to extend. Treat the figure as a point-in-time disclosure, not a running balance.

When must Nautilus Biotechnology, Inc. complete a merger?

No combination deadline appears in the filings we have indexed. The date is stated in the charter and repeated in each quarterly report; where our parser could not establish it with confidence we leave it blank rather than infer one.

What happens if Nautilus Biotechnology, Inc. does not find a target in time?

The charter requires the vehicle to redeem 100% of the public shares and return the trust, pro rata, to public shareholders. That is the mechanism working as designed rather than a default. Founder shares and warrants are worthless in that outcome, which is why the sponsor's incentive is to get a deal done or to buy more time. Across the market, deadline lapsed without a deal; trust returned to public shareholders.

Can I redeem shares in Nautilus Biotechnology, Inc., and at what price?

Public shareholders may elect to redeem in connection with a combination vote and at each extension vote, at the pro-rata trust value on the relevant record date, most recently disclosed at about $10.00 per share. Redemption is a right attached to the public shares only; warrants and rights carry no claim on the trust. The mechanics and the deadline for electing are set out in the proxy statement for the vote in question.

What tickers does Nautilus Biotechnology, Inc. trade under?

Class A shares trade as NAUT on Nasdaq. Units trade first and separate into their component securities roughly 52 days after the IPO; only the Class A shares carry the redemption right against the trust.

Is the trust value the same as the share price for Nautilus Biotechnology, Inc.?

No, and the gap between them is the whole trade. Trust per share is a disclosed, contractual figure of $10.00, being what a redeeming holder receives. The market price is whatever the shares change hands at: most recently $2.89, a spread to the redemption value. Quotes on this site are delayed and indicative; confirm on your own venue before trading.

How much dilution do Nautilus Biotechnology, Inc.'s founder shares and warrants create?

The founder block is 3,593,750 shares against 14,950,000 public shares, so roughly 19.4% of the combined count sits with the sponsor at nominal cost. Both are disclosed in the prospectus and both survive into the combined company, which is why a de-SPAC at $10 is not economically the same as an IPO at $10.

Who sponsors Nautilus Biotechnology, Inc., and what is their track record?

ARYA Sciences Holdings III, a Cayman Islands exempted limited is the sponsor entity, part of the ARYA Sciences Holdings III, a Islands exempted franchise. That franchise has launched 2 vehicles in total, of which 2 closed a combination and 0 liquidated, a 100% completion rate on resolved vehicles. Named principals: Adam Stone, Joseph Edelman.

Which banks underwrote the Nautilus Biotechnology, Inc. IPO?

Goldman Sachs, Jefferies. Goldman Sachs and Jefferies were credited as book-running managers on the cover. Syndicate membership and role are read from the prospectus cover and the underwriting section.

Is Nautilus Biotechnology, Inc. tradeable, and where?

Yes. NAUT returned a live quote of $2.89 on Nasdaq. Quotes here are delayed and refreshed on a schedule rather than streamed, so treat the figure as indicative and confirm on your own venue. Units and warrants trade under their own symbols and are quoted separately.

Is Nautilus Biotechnology, Inc. a good investment?

That is not a question this site answers. Nautilus Biotechnology, Inc. is covered here as reference data: what the company filed, when it filed it, and what the numbers in those filings say. The Edge, FOMO and Potential scores on this page are derived measures with a published formula, not ratings of investment merit: they describe the setup, and every component is shown so you can take them apart. We publish no price targets and no recommendations, and nothing here should be read as advice. The figures are a starting point for your own work, and each one carries the accession number of the filing it came from.

Where does this Nautilus Biotechnology, Inc. data come from?

Filings Nautilus Biotechnology, Inc. submitted to the SEC under CIK 0001808805: the registration statement and final prospectus for the structure, quarterly and annual reports for the trust, current reports and proxy statements for deals, votes and extensions. Trust economics are taken from the registrant's own XBRL tags rather than parsed from prose, which is why they are exact. Every filing in the history above is listed with its accession number, which identifies the document uniquely on EDGAR; Pro accounts open it directly from the row.

Compiled by the SPACListing research desk

Last reconciled Oct 28, 2026

Every figure on this page is read from documents the registrants filed with the U.S. Securities and Exchange Commission, principally the IPO prospectus (Form 424B4), quarterly and annual reports, current reports and proxy statements, the registrant's own XBRL tags for trust economics. Nothing is sourced from press coverage, from the companies themselves, or from a third-party aggregator. Where a filing does not disclose something, the field is left blank rather than estimated.

Read the full methodology · What is in the dataset · Report a correction

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The context around this vehicle: who else the sponsor has launched, which banks priced it, and where it sits in the wider market.