# Sutro Biopharma, Inc.: filings

STRO · Nasdaq · CIK 1382101 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

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

## Reports and events: 136 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 (4 296, 8-K 92, 3 33, SC 13G/A 28, 10-Q 24, SC 13G 17, S-8 12, SCHEDULE 13G/A 11, 10-K 8, 424B5 8, CORRESP 8, DEF 14A 8, SCHEDULE 13G 8, DEFA14A 7, UPLOAD 7, EFFECT 5, ARS 4, 144 3, 4/A 3, DRSLTR 3, S-3 3, PRE 14A 2, 10-K/A 1, 3/A 1, 424B3 1, 424B4 1, 8-A12B 1, CERT 1, CT ORDER 1, D 1, D/A 1, DRS 1, DRS/A 1, POS AM 1, POSASR 1, POS EX 1, REGDEX/A 1, S-1 1, S-1/A 1, S-1MEF 1, S-3ASR 1, S-3MEF 1, SC 13D 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-12 | 07:30 ET | [10-Q](/filings/0001193125-26-345748.md) | Quarterly report, period 2026-06-30 | 0001193125-26-345748 |
| 2026-08-12 | 07:15 ET | [8-K](/filings/0001193125-26-345733.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-345733 |
| 2026-06-08 | 16:01 ET | [8-K](/filings/0001193125-26-261658.md) | 5.07 Shareholder vote results | 0001193125-26-261658 |
| 2026-05-14 | 16:30 ET | [10-Q](/filings/0001193125-26-224170.md) | Quarterly report, period 2026-03-31 | 0001193125-26-224170 |
| 2026-05-14 | 16:15 ET | [8-K](/filings/0001193125-26-224065.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-224065 |
| 2026-04-22 | 16:05 ET | [DEF 14A](/filings/0001193125-26-170354.md) | Proxy statement, period 2026-06-05 | 0001193125-26-170354 |
| 2026-03-23 | 16:44 ET | [10-K](/filings/0001193125-26-119873.md) | Annual report, period 2025-12-31 | 0001193125-26-119873 |
| 2026-03-23 | 16:32 ET | [8-K](/filings/0001193125-26-119844.md) | 1.02 Termination of a material agreement; 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-119844 |
| 2026-02-10 | 17:16 ET | [8-K](/filings/0001193125-26-044934.md) | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-044934 |
| 2025-12-17 | 16:38 ET | [8-K](/filings/0001193125-25-322859.md) | 8.01 Other events | 0001193125-25-322859 |
| 2025-12-03 | 16:30 ET | [8-K](/filings/0001193125-25-306786.md) | 3.03 Change to security holders’ rights; 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-25-306786 |
| 2025-11-06 | 17:01 ET | [10-Q](/filings/0001193125-25-270036.md) | Quarterly report, period 2025-09-30 | 0001193125-25-270036 |
| 2025-11-06 | 16:45 ET | [8-K](/filings/0001193125-25-269833.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-25-269833 |
| 2025-09-29 | 17:15 ET | [8-K](/filings/0001193125-25-223434.md) | 2.05 Exit or disposal costs; 9.01 Financial statements and exhibits | 0001193125-25-223434 |
| 2025-08-07 | 17:01 ET | [10-Q](/filings/0000950170-25-105219.md) | Quarterly report, period 2025-06-30 | 0000950170-25-105219 |
| 2025-08-07 | 16:45 ET | [8-K](/filings/0000950170-25-105159.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-25-105159 |
| 2025-06-25 | 16:30 ET | [8-K](/filings/0000950170-25-089978.md) | 3.01 Delisting notice | 0000950170-25-089978 |
| 2025-06-10 | 16:30 ET | [8-K](/filings/0001193125-25-138481.md) | 5.07 Shareholder vote results | 0001193125-25-138481 |
| 2025-06-02 | 16:01 ET | [8-K](/filings/0001193125-25-133268.md) | 5.02 Departure or appointment of officers or directors | 0001193125-25-133268 |
| 2025-05-08 | 16:30 ET | [10-Q](/filings/0000950170-25-067072.md) | Quarterly report, period 2025-03-31 | 0000950170-25-067072 |
| 2025-05-08 | 16:28 ET | [8-K](/filings/0000950170-25-067061.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-25-067061 |
| 2025-04-25 | 16:30 ET | [DEF 14A](/filings/0000950170-25-058774.md) | Proxy statement, period 2025-06-06 | 0000950170-25-058774 |
| 2025-04-14 | 16:30 ET | [8-K](/filings/0000950170-25-053733.md) | 5.02 Departure or appointment of officers or directors | 0000950170-25-053733 |
| 2025-03-13 | 17:17 ET | [10-K](/filings/0000950170-25-038884.md) | Annual report, period 2024-12-31 | 0000950170-25-038884 |
| 2025-03-13 | 17:14 ET | [8-K](/filings/0000950170-25-038879.md) | 2.02 Results of operations; 2.05 Exit or disposal costs; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000950170-25-038879 |
| 2024-12-10 | 08:00 ET | [8-K](/filings/0000950170-24-134765.md) | 8.01 Other events | 0000950170-24-134765 |
| 2024-11-13 | 16:34 ET | [10-Q](/filings/0000950170-24-126407.md) | Quarterly report, period 2024-09-30 | 0000950170-24-126407 |
| 2024-11-13 | 16:30 ET | [8-K](/filings/0000950170-24-126382.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-24-126382 |
| 2024-08-13 | 16:31 ET | [10-Q](/filings/0000950170-24-096336.md) | Quarterly report, period 2024-06-30 | 0000950170-24-096336 |
| 2024-08-13 | 16:30 ET | [8-K](/filings/0000950170-24-096313.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-24-096313 |
| 2024-08-12 | 16:30 ET | [8-K](/filings/0000950170-24-095486.md) | 5.02 Departure or appointment of officers or directors | 0000950170-24-095486 |
| 2024-06-10 | 16:30 ET | [8-K](/filings/0000950170-24-071335.md) | 5.07 Shareholder vote results | 0000950170-24-071335 |
| 2024-05-13 | 16:34 ET | [10-Q](/filings/0000950170-24-058718.md) | Quarterly report, period 2024-03-31 | 0000950170-24-058718 |
| 2024-05-13 | 16:30 ET | [8-K](/filings/0000950170-24-058701.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-24-058701 |
| 2024-04-26 | 16:30 ET | [DEF 14A](/filings/0000950170-24-049207.md) | Proxy statement, period 2024-06-06 | 0000950170-24-049207 |
| 2024-04-02 | 17:10 ET | [8-K](/filings/0000950170-24-040345.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0000950170-24-040345 |
| 2024-04-02 | 06:04 ET | [8-K](/filings/0000950170-24-039736.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-24-039736 |
| 2024-03-25 | 16:30 ET | [10-K](/filings/0000950170-24-035949.md) | Annual report, period 2023-12-31 | 0000950170-24-035949 |
| 2024-03-25 | 16:30 ET | [8-K](/filings/0000950170-24-035948.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-24-035948 |
| 2024-02-09 | 16:27 ET | [8-K](/filings/0001193125-24-030094.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-24-030094 |
| 2024-01-08 | 07:31 ET | [8-K](/filings/0000950170-24-002690.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0000950170-24-002690 |
| 2023-11-27 | 16:05 ET | [8-K](/filings/0000950170-23-066112.md) | 1.01 Entry into a material agreement | 0000950170-23-066112 |
| 2023-11-21 | 16:05 ET | [8-K](/filings/0000950170-23-065482.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-23-065482 |
| 2023-11-13 | 16:32 ET | [10-Q](/filings/0000950170-23-063037.md) | Quarterly report, period 2023-09-30 | 0000950170-23-063037 |
| 2023-11-13 | 16:30 ET | [8-K](/filings/0000950170-23-063021.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-23-063021 |
| 2023-10-04 | 16:31 ET | [8-K](/filings/0000950170-23-051917.md) | 1.01 Entry into a material agreement | 0000950170-23-051917 |
| 2023-08-10 | 16:33 ET | [10-Q](/filings/0000950170-23-041416.md) | Quarterly report, period 2023-06-30 | 0000950170-23-041416 |
| 2023-08-10 | 16:31 ET | [8-K](/filings/0000950170-23-041404.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-23-041404 |
| 2023-06-26 | 08:01 ET | [8-K](/filings/0000950170-23-029731.md) | 1.01 Entry into a material agreement | 0000950170-23-029731 |
| 2023-06-14 | 16:31 ET | [8-K](/filings/0000950170-23-027975.md) | 1.02 Termination of a material agreement; 5.07 Shareholder vote results | 0000950170-23-027975 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:12 ET. No prices; not investment advice.