# Nautilus Biotechnology, Inc.: filings

NAUT · Nasdaq · CIK 1808805 · [Technology](/sectors/technology.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/naut.md) · [Financials](/companies/naut/financials.md) · [Filings](/companies/naut/filings.md) · [Insiders](/companies/naut/insiders.md)

## Reports and events: 96 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 115, 8-K 42, 3 25, 10-Q 20, 144 11, 424B3 11, SCHEDULE 13D/A 11, CORRESP 9, EFFECT 7, S-8 7, 10-K 6, SC 13G 6, UPLOAD 6, 425 5, DEF 14A 5, DEFA14A 5, SC 13D 5, ARS 4, S-4/A 3, SC 13D/A 3, 424B5 2, DRS 2, POS AM 2, S-1 2, S-3 2, SC 13G/A 2, 3/A 1, 424B4 1, 8-A12B 1, 8-K/A 1, CERT 1, D 1, S-1/A 1, S-1MEF 1, S-4 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-27 | 07:37 ET | [10-Q](/filings/0001808805-26-000052.md) | Quarterly report, period 2026-09-30 | 0001808805-26-000052 |
| 2026-10-27 | 18:46 ET | [8-K](/filings/0001808805-26-000049.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-26-000049 |
| 2026-09-11 | 17:08 ET | [SCHEDULE 13D/A](/filings/0001231919-26-001165.md) | Ownership report, active investor, amended | 0001231919-26-001165 |
| 2026-09-11 | 16:08 ET | [8-K](/filings/0001808805-26-000041.md) | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 9.01 Financial statements and exhibits | 0001808805-26-000041 |
| 2026-08-28 | 19:43 ET | [SCHEDULE 13D/A](/filings/0001725721-26-000006.md) | Ownership report, active investor, amended | 0001725721-26-000006 |
| 2026-08-14 | 17:20 ET | [SCHEDULE 13D/A](/filings/0001193125-26-352644.md) | Ownership report, active investor, amended | 0001193125-26-352644 |
| 2026-07-28 | 16:06 ET | [10-Q](/filings/0001808805-26-000034.md) | Quarterly report, period 2026-06-30 | 0001808805-26-000034 |
| 2026-07-28 | 19:29 ET | [8-K](/filings/0001808805-26-000030.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-26-000030 |
| 2026-06-30 | 17:13 ET | [SCHEDULE 13D/A](/filings/0001725721-26-000004.md) | Ownership report, active investor, amended | 0001725721-26-000004 |
| 2026-06-18 | 16:05 ET | [8-K](/filings/0001808805-26-000027.md) | 5.07 Shareholder vote results | 0001808805-26-000027 |
| 2026-06-04 | 16:54 ET | [SCHEDULE 13D/A](/filings/0001725721-26-000002.md) | Ownership report, active investor, amended | 0001725721-26-000002 |
| 2026-04-28 | 16:09 ET | [DEF 14A](/filings/0001808805-26-000023.md) | Proxy statement, period 2026-06-17 | 0001808805-26-000023 |
| 2026-04-28 | 16:07 ET | [10-Q](/filings/0001808805-26-000022.md) | Quarterly report, period 2026-03-31 | 0001808805-26-000022 |
| 2026-04-28 | 20:19 ET | [8-K](/filings/0001808805-26-000015.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-26-000015 |
| 2026-03-04 | 19:33 ET | [SCHEDULE 13D/A](/filings/0001378830-26-000005.md) | Ownership report, active investor, amended | 0001378830-26-000005 |
| 2026-03-04 | 19:33 ET | [SCHEDULE 13D/A](/filings/0001857948-26-000003.md) | Ownership report, active investor, amended | 0001857948-26-000003 |
| 2026-02-26 | 16:11 ET | [10-K](/filings/0001808805-26-000011.md) | Annual report, period 2025-12-31 | 0001808805-26-000011 |
| 2026-02-26 | 18:46 ET | [8-K](/filings/0001808805-26-000004.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-26-000004 |
| 2025-11-04 | 17:32 ET | [8-K](/filings/0001808805-25-000082.md) | 8.01 Other events | 0001808805-25-000082 |
| 2025-10-28 | 16:11 ET | [10-Q](/filings/0001808805-25-000080.md) | Quarterly report, period 2025-09-30 | 0001808805-25-000080 |
| 2025-10-28 | 17:48 ET | [8-K](/filings/0001808805-25-000077.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-25-000077 |
| 2025-07-31 | 16:35 ET | [10-Q](/filings/0001808805-25-000072.md) | Quarterly report, period 2025-06-30 | 0001808805-25-000072 |
| 2025-07-31 | 19:45 ET | [8-K](/filings/0001808805-25-000069.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-25-000069 |
| 2025-06-24 | 16:42 ET | [SCHEDULE 13D/A](/filings/0001104659-25-062136.md) | Ownership report, active investor, amended | 0001104659-25-062136 |
| 2025-06-23 | 16:34 ET | [8-K](/filings/0001808805-25-000054.md) | 5.07 Shareholder vote results | 0001808805-25-000054 |
| 2025-05-02 | 16:30 ET | [8-K](/filings/0001808805-25-000047.md) | 3.01 Delisting notice | 0001808805-25-000047 |
| 2025-04-29 | 16:06 ET | [DEF 14A](/filings/0001808805-25-000043.md) | Proxy statement, period 2024-12-31 | 0001808805-25-000043 |
| 2025-04-29 | 16:05 ET | [10-Q](/filings/0001808805-25-000042.md) | Quarterly report, period 2025-03-31 | 0001808805-25-000042 |
| 2025-04-29 | 18:12 ET | [8-K](/filings/0001808805-25-000039.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-25-000039 |
| 2025-03-05 | 16:57 ET | [SCHEDULE 13D/A](/filings/0001808805-25-000033.md) | Ownership report, active investor, amended | 0001808805-25-000033 |
| 2025-03-05 | 16:54 ET | [SCHEDULE 13D/A](/filings/0001808805-25-000032.md) | Ownership report, active investor, amended | 0001808805-25-000032 |
| 2025-02-27 | 16:46 ET | [10-K](/filings/0001808805-25-000008.md) | Annual report, period 2024-12-31 | 0001808805-25-000008 |
| 2025-02-27 | 18:26 ET | [8-K](/filings/0001808805-25-000004.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001808805-25-000004 |
| 2025-01-31 | 21:06 ET | [SCHEDULE 13D/A](/filings/0000950170-25-011961.md) | Ownership report, active investor, amended | 0000950170-25-011961 |
| 2025-01-31 | 17:15 ET | [8-K](/filings/0001808805-25-000002.md) | 5.02 Departure or appointment of officers or directors | 0001808805-25-000002 |
| 2024-11-14 | 16:31 ET | [SC 13D/A](/filings/0001193125-24-258673.md) | Ownership report, active investor, amended | 0001193125-24-258673 |
| 2024-10-29 | 16:06 ET | [10-Q](/filings/0001808805-24-000072.md) | Quarterly report, period 2024-09-30 | 0001808805-24-000072 |
| 2024-10-29 | 17:47 ET | [8-K](/filings/0001808805-24-000070.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-24-000070 |
| 2024-07-30 | 16:10 ET | [10-Q](/filings/0001808805-24-000058.md) | Quarterly report, period 2024-06-30 | 0001808805-24-000058 |
| 2024-07-30 | 18:07 ET | [8-K](/filings/0001808805-24-000055.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-24-000055 |
| 2024-06-13 | 16:25 ET | [8-K](/filings/0001808805-24-000043.md) | 5.07 Shareholder vote results | 0001808805-24-000043 |
| 2024-04-30 | 16:09 ET | [10-Q](/filings/0001808805-24-000041.md) | Quarterly report, period 2024-03-31 | 0001808805-24-000041 |
| 2024-04-30 | 18:12 ET | [8-K](/filings/0001808805-24-000038.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-24-000038 |
| 2024-04-26 | 16:08 ET | [DEF 14A](/filings/0001808805-24-000033.md) | Proxy statement, period 2023-12-31 | 0001808805-24-000033 |
| 2024-02-28 | 07:26 ET | [8-K](/filings/0001628280-24-007395.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001628280-24-007395 |
| 2024-02-28 | 07:04 ET | [10-K](/filings/0001808805-24-000005.md) | Annual report, period 2023-12-31 | 0001808805-24-000005 |
| 2024-02-28 | 07:03 ET | [8-K](/filings/0001808805-24-000004.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001808805-24-000004 |
| 2023-12-14 | 16:17 ET | [8-K](/filings/0001808805-23-000084.md) | 8.01 Other events | 0001808805-23-000084 |
| 2023-11-17 | 21:18 ET | [SC 13D/A](/filings/0001193125-23-279073.md) | Ownership report, active investor, amended | 0001193125-23-279073 |
| 2023-10-31 | 16:02 ET | [10-Q](/filings/0001808805-23-000075.md) | Quarterly report, period 2023-09-30 | 0001808805-23-000075 |

Page 1 of 2. [Older](/companies/naut/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 27, 2026, 07:43 ET. No prices; not investment advice.