Nautilus Biotechnology (NAUT) Latest Stock Analysis Report – Oct 15, 2026, 4:00 PM ET
Updated Oct 15, 2026, 4:00 PM ET
- Closed at $2.16, +0.00% vs the prior close of $2.16.
- Volume 8.55M shares, 2.1x its 50-day average (heavy).
- No new SEC filings since the prior session.
- No new insider buys or sales reported since the prior session.
NAUT ends flat (+0.0%) to $2.16 on 2.1x normal volume. Closed at $2.16, +0.00% vs the prior close of $2.16. Day range $1.88–$2.20, opened at $2.07.
NAUT daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 15, 2026 — NAUT ends flat (+0.0%) to $2.16 on 2.1x normal volume
- Closed at $2.16, +0.00% vs the prior close of $2.16. Day range $1.88–$2.20, opened at $2.07.
- Volume was 8.55M shares, 2.1x its 50-day average of 4.04M — unusually heavy trading.
- Price is +82.6% vs its 50-day average ($1.18) and +4.1% vs its 200-day average ($2.08).
- 52-week range $0.84–$4.31; today's close sits at 38% of that range, 49.9% below the 52-week high.
Oct 14, 2026 — NAUT jumps 5.4% to $2.16 on 2.1x normal volume
- Closed at $2.16, +5.37% vs the prior close of $2.05. Day range $1.91–$2.19, opened at $2.00.
- Volume was 8.18M shares, 2.1x its 50-day average of 3.91M — unusually heavy trading.
- Price is +86.5% vs its 50-day average ($1.16) and +4.1% vs its 200-day average ($2.07).
- 52-week range $0.84–$4.31; today's close sits at 38% of that range, 49.9% below the 52-week high.
Oct 13, 2026 — NAUT slides 5.5% to $2.05 on 2.0x normal volume
- Closed at $2.05, -5.53% vs the prior close of $2.17. Day range $2.00–$2.34, opened at $2.12.
- Volume was 7.47M shares, 2.0x its 50-day average of 3.79M — unusually heavy trading.
- Price is +80.6% vs its 50-day average ($1.13) and -1.1% vs its 200-day average ($2.07).
- 52-week range $0.84–$4.31; today's close sits at 35% of that range, 52.4% below the 52-week high.
Oct 12, 2026 — NAUT slides 3.6% to $2.17 on 3.8x normal volume
- Closed at $2.17, -3.56% vs the prior close of $2.25. Day range $1.86–$2.25, opened at $2.16.
- Volume was 13.55M shares, 3.8x its 50-day average of 3.54M — unusually heavy trading.
- Price is +94.8% vs its 50-day average ($1.11) and +4.7% vs its 200-day average ($2.07).
- 52-week range $0.82–$4.31; today's close sits at 39% of that range, 49.7% below the 52-week high.
Oct 9, 2026 — NAUT jumps 23.6% to $2.25, a 3-month high on 6.2x normal volume
- Closed at $2.25, +23.63% vs the prior close of $1.82. Day range $1.85–$2.46, opened at $1.93.
- Volume was 19.58M shares, 6.2x its 50-day average of 3.17M — unusually heavy trading.
- Price is +106.4% vs its 50-day average ($1.09) and +8.6% vs its 200-day average ($2.07).
- 52-week range $0.82–$4.31; today's close sits at 41% of that range, 47.8% below the 52-week high.
Oct 8, 2026 — NAUT slides 7.1% to $1.82 on 2.2x normal volume
- Closed at $1.82, -7.14% vs the prior close of $1.96. Day range $1.75–$2.01, opened at $2.00.
- Volume was 6.61M shares, 2.2x its 50-day average of 3.07M — unusually heavy trading.
- Price is +70.8% vs its 50-day average ($1.07) and -12.1% vs its 200-day average ($2.07).
- 52-week range $0.82–$4.31; today's close sits at 29% of that range, 57.8% below the 52-week high.
Oct 7, 2026 — NAUT jumps 10.7% to $1.96 on 4.4x normal volume
- Closed at $1.96, +10.73% vs the prior close of $1.77. Day range $1.62–$2.17, opened at $1.67.
- Volume was 12.53M shares, 4.4x its 50-day average of 2.86M — unusually heavy trading.
- Price is +86.6% vs its 50-day average ($1.05) and -5.4% vs its 200-day average ($2.07).
- 52-week range $0.82–$4.31; today's close sits at 33% of that range, 54.5% below the 52-week high.
Oct 6, 2026 — NAUT slides 5.3% to $1.77 on 4.2x normal volume
- Closed at $1.77, -5.35% vs the prior close of $1.87. Day range $1.73–$2.09, opened at $1.89.
- Volume was 11.02M shares, 4.2x its 50-day average of 2.65M — unusually heavy trading.
- Price is +71.0% vs its 50-day average ($1.03) and -14.6% vs its 200-day average ($2.07).
- 52-week range $0.82–$4.31; today's close sits at 27% of that range, 58.9% below the 52-week high.
Oct 5, 2026 — NAUT slides 4.6% to $1.87 on 14.3x normal volume
- Closed at $1.87, -4.59% vs the prior close of $1.96. Day range $1.81–$2.47, opened at $2.18.
- Volume was 29.56M shares, 14.3x its 50-day average of 2.07M — unusually heavy trading.
- Price is +81.1% vs its 50-day average ($1.03) and -9.7% vs its 200-day average ($2.07).
- 52-week range $0.82–$4.31; today's close sits at 30% of that range, 56.6% below the 52-week high.
Oct 2, 2026 — NAUT jumps 24.8% to $1.96, a 3-month high on 7.9x normal volume
- Closed at $1.96, +24.84% vs the prior close of $1.57. Day range $1.60–$1.97, opened at $1.65.
- Volume was 14.19M shares, 7.9x its 50-day average of 1.80M — unusually heavy trading.
- Price is +90.4% vs its 50-day average ($1.03) and -5.4% vs its 200-day average ($2.07).
- 52-week range $0.82–$4.31; today's close sits at 33% of that range, 54.5% below the 52-week high.
- That makes 5 straight gains.
NAUT latest news & SEC filings
Every SEC filing by or about NAUT in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Sep 18, 2026 · Form EFFECT — EFFECT filing
EFFECT filing
Sep 18, 2026 · Form 424B5 — Prospectus supplement
Prospectus supplement — the company is selling securities off a shelf registration
An offering document: new shares or debt may be sold, which can increase the share count (dilution) or debt load. Size and terms are in the prospectus.
Sep 11, 2026 · Form SCHEDULE 13D/A — Update to a 13D 5%+ stake disclosure
Update to a 13D 5%+ stake disclosure
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Sep 11, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 1.01 — Signed a material agreement.
- Item 1.02 — Ended a material agreement.
Sep 11, 2026 · Form S-3 — Shelf registration (S-3)
Shelf registration (S-3) — lets the company sell securities over time
An offering document: new shares or debt may be sold, which can increase the share count (dilution) or debt load. Size and terms are in the prospectus.
Aug 28, 2026 · Form SCHEDULE 13D/A — Update to a 13D 5%+ stake disclosure
Update to a 13D 5%+ stake disclosure
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Aug 14, 2026 · Form SCHEDULE 13D/A — Update to a 13D 5%+ stake disclosure
Update to a 13D 5%+ stake disclosure
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Jul 28, 2026 · Form 10-Q — Quarterly report
Quarterly report (unaudited financial statements for the quarter)
Quarter ended Jun 30, 2026:
- Revenue: $190.00K (prior year $0)
- Net income: -$14.47M (prior year -$15.03M) (loss narrowed vs Jun 30, 2025)
- Diluted EPS: -$0.11 (prior year -$0.12) (loss narrowed vs Jun 30, 2025)
Jul 28, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.02 — Reported results of operations (earnings release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Jun 30, 2026 · Form SCHEDULE 13D/A — Update to a 13D 5%+ stake disclosure
Update to a 13D 5%+ stake disclosure
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Jun 22, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Jun 22, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Jun 22, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Jun 22, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Jun 22, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Things to know before you trade NAUT
- Last results release: Jul 28, 2026 (8-K Item 2.02). Previous ones: Apr 28, 2026, Feb 26, 2026, Oct 28, 2025. Based on that rhythm, the next report is likely around Oct 27, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 8.06% (largest 24.8%). That is a volatile stock.
- Liquidity: about 9.19M shares (≈$19.84M) trade per day on average.
- 52-week position: $2.16 vs a range of $0.84–$4.31 (38% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 2 open-market buys, 12 sales; latest: Bio Fund Ii, L.P. Ah sold 4,615,974 shares on Jun 2, 2026.
- Latest filings: 8-K Sep 11, 2026; 10-Q Jul 28, 2026; 8-K Jul 28, 2026.
- Share count: 127.26M shares outstanding (Jul 24, 2026), +0.8% vs a year earlier.
- Listing: Nasdaq · industry: Laboratory Analytical Instruments.
NAUT market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 15, 2026 | 2.07 | 2.20 | 1.88 | 2.16 | 8.55M |
| Oct 14, 2026 | 2.00 | 2.19 | 1.91 | 2.16 | 8.18M |
| Oct 13, 2026 | 2.12 | 2.34 | 2.00 | 2.05 | 7.47M |
| Oct 12, 2026 | 2.16 | 2.25 | 1.86 | 2.17 | 13.55M |
| Oct 9, 2026 | 1.93 | 2.46 | 1.85 | 2.25 | 19.58M |
| Oct 8, 2026 | 2.00 | 2.01 | 1.75 | 1.82 | 6.61M |
| Oct 7, 2026 | 1.67 | 2.17 | 1.62 | 1.96 | 12.53M |
| Oct 6, 2026 | 1.89 | 2.09 | 1.73 | 1.77 | 11.02M |
| Oct 5, 2026 | 2.18 | 2.47 | 1.81 | 1.87 | 29.56M |
| Oct 2, 2026 | 1.65 | 1.97 | 1.60 | 1.96 | 14.19M |
| Oct 1, 2026 | 1.43 | 1.68 | 1.38 | 1.57 | 8.51M |
| Sep 30, 2026 | 1.46 | 1.49 | 1.29 | 1.42 | 12.79M |
| Sep 29, 2026 | 1.19 | 1.60 | 1.08 | 1.37 | 22.39M |
| Sep 28, 2026 | 1.00 | 1.17 | 0.99 | 1.11 | 4.10M |
| Sep 25, 2026 | 1.00 | 1.04 | 0.96 | 0.96 | 681.50K |
| Sep 24, 2026 | 0.94 | 1.01 | 0.94 | 0.99 | 518.80K |
| Sep 23, 2026 | 1.00 | 1.02 | 0.95 | 0.95 | 386.70K |
| Sep 22, 2026 | 0.96 | 1.02 | 0.95 | 1.00 | 606.80K |
| Sep 21, 2026 | 0.96 | 0.96 | 0.90 | 0.95 | 737.90K |
| Sep 18, 2026 | 0.97 | 1.00 | 0.94 | 0.97 | 1.78M |
About Nautilus Biotechnology
Nautilus Biotechnology (NAUT) is listed on the Nasdaq and classified by the SEC under “Laboratory Analytical Instruments”. Its business address is in SEATTLE, WA. Fiscal year ends December 31. SEC CIK 1808805.
NAUT board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Karen Akinsanya | Director | Jun 22, 2026 |
| Melissa B, Epperly | Director | Jun 22, 2026 |
| Parag Mallick | Chief Scientist | Mar 4, 2026 |
| Matthew S Mcilwain | Director | Jun 22, 2026 |
| Farzad Nazem | Director | Jun 22, 2026 |
| Sujal M Patel | CEO, President, and Secretary | Mar 4, 2026 |
| Matthew L. Posard | Director | Jun 22, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Parag Mallick | Chief Scientist | Mar 4, 2026 |
| Anna Mowry | CFO and Treasurer | Mar 4, 2026 |
| Matthew B. Murphy | General Counsel | Mar 4, 2026 |
| Sujal M Patel | CEO, President, and Secretary | Mar 4, 2026 |
| Subramanian Sankar | Senior VP, Product Development | Mar 4, 2026 |
| Kentaro Suzuki | Chief Marketing Officer | Mar 4, 2026 |
| Gwen E Weld | Chief People Officer | Mar 4, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 2, 2026 | Bio Fund Ii, L.P. Ah | Sale | 4,615,974 | $2.35 |
| Jun 2, 2026 | Bio Fund Ii, L.P. Ah | Sale | 384,026 | $2.35 |
| Jun 2, 2026 | Benjamin A Horowitz | Sale | 4,615,974 | $2.35 |
| Jun 2, 2026 | Benjamin A Horowitz | Sale | 384,026 | $2.35 |
| Jun 2, 2026 | Equity Partners Lsv Ii, L.L.C. Ah | Sale | 4,615,974 | $2.35 |
| Jun 2, 2026 | Equity Partners Lsv Ii, L.L.C. Ah | Sale | 384,026 | $2.35 |
| Jun 2, 2026 | Horowitz Lsv Fund Ii, L.P. Andreessen | Sale | 4,615,974 | $2.35 |
| Jun 2, 2026 | Horowitz Lsv Fund Ii, L.P. Andreessen | Sale | 384,026 | $2.35 |
| Jun 2, 2026 | Marc L Andreessen | Sale | 4,615,974 | $2.35 |
| Jun 2, 2026 | Marc L Andreessen | Sale | 384,026 | $2.35 |
| Jun 2, 2026 | Equity Partners Bio Ii, L.L.C. Ah | Sale | 4,615,974 | $2.35 |
| Jun 2, 2026 | Equity Partners Bio Ii, L.L.C. Ah | Sale | 384,026 | $2.35 |
| Mar 4, 2026 | Sujal M Patel | Buy | 25,000 | $2.61 |
| Nov 6, 2025 | Kentaro Suzuki | Buy | 4,000 | $1.49 |
NAUT financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | — | $-59.00M | -0.47 | $-50.70M |
| Dec 31, 2024 | — | $-70.78M | -0.56 | $-59.15M |
| Dec 31, 2023 | — | $-63.67M | -0.51 | $-51.71M |
| Dec 31, 2022 | — | $-57.92M | -0.46 | $-45.81M |
| Dec 31, 2021 | — | $-50.31M | -0.60 | $-39.24M |
Latest balance sheet: total assets $163.58M, total liabilities $32.46M, cash $13.17M (as of Jun 30, 2026).
NAUT earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Jul 28, 2026 | 8-K Item 2.02 (results) | $1.20 |
| Apr 28, 2026 | 8-K Item 2.02 (results) | $2.59 |
| Feb 26, 2026 | 8-K Item 2.02 (results) | $2.42 |
| Oct 28, 2025 | 8-K Item 2.02 (results) | $1.43 |
| Jul 31, 2025 | 8-K Item 2.02 (results) | $0.76 |
| Apr 29, 2025 | 8-K Item 2.02 (results) | $0.73 |
| Feb 27, 2025 | 8-K Item 2.02 (results) | $1.17 |
| Oct 29, 2024 | 8-K Item 2.02 (results) | $2.77 |
| Jul 30, 2024 | 8-K Item 2.02 (results) | — |
| Apr 30, 2024 | 8-K Item 2.02 (results) | — |
| Feb 28, 2024 | 8-K Item 2.02 (results) | — |
| Oct 31, 2023 | 8-K Item 2.02 (results) | — |
Related stocks · Laboratory Analytical Instruments
Illumina (ILMN)Waters (WAT)Mettler Toledo International Inc/ (MTD)Revvity (RVTY)Agilent Technologies (A)10x Genomics (TXG)Bruker (BRKR)Avantor (AVTR)Bio-Rad Laboratories (BIO)Alamar Biosciences (ALMR)
Popular today
Micron Technology (MU)Spdr S&P 500 Etf (SPY)Nvidia (NVDA)Sandisk (SNDK)AMD (AMD)Space Exploration Technologies (SPCX)Intel (INTC)Apple (AAPL)Microsoft (MSFT)Meta Platforms (META)Broadcom (AVGO)Tesla (TSLA)
More on NAUT
Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 15, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.