# Synlogic, Inc.: filings

SYBX · OTC · CIK 1527599 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

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

## Reports and events: 219 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 (4 193, 8-K 130, 3 54, 10-Q 33, SC 13G/A 18, S-8 15, CORRESP 14, SC 13G 14, SC 13D/A 13, UPLOAD 12, 10-K 11, 424B5 10, DEF 14A 10, EFFECT 8, S-1/A 7, CT ORDER 6, DEFA14A 6, 425 5, S-3 5, SC 13D 5, D 4, DRS/A 4, 10-K/A 3, ARS 3, S-3/A 3, SCHEDULE 13D/A 3, 144 2, 424B3 2, 424B4 2, 8-A12B 2, 8-K/A 2, DRSLTR 2, PRE 14A 2, S-1 2, SCHEDULE 13G/A 2, 25-NSE 1, 3/A 1, 5 1, CERTNAS 1, DRS 1, FWP 1, S-1MEF 1, S-4 1, S-4/A 1, SCHEDULE 13G 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-11 | 16:30 ET | [10-Q](/filings/0001193125-26-344789.md) | Quarterly report, period 2026-06-30 | 0001193125-26-344789 |
| 2026-07-29 | 19:40 ET | [SCHEDULE 13D/A](/filings/0001072613-26-000599.md) | Ownership report, active investor, amended | 0001072613-26-000599 |
| 2026-07-29 | 16:18 ET | [SCHEDULE 13D/A](/filings/0000921895-26-001889.md) | Ownership report, active investor, amended | 0000921895-26-001889 |
| 2026-07-29 | 07:19 ET | [8-K](/filings/0001193125-26-322160.md) | 1.01 Entry into a material agreement; 3.03 Change to security holders’ rights; 5.01 Change in control; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-322160 |
| 2026-05-14 | 16:30 ET | [10-Q](/filings/0001193125-26-224171.md) | Quarterly report, period 2026-03-31 | 0001193125-26-224171 |
| 2026-04-30 | 16:29 ET | [10-K/A](/filings/0001193125-26-197468.md) | Annual report, amended, period 2025-12-31 | 0001193125-26-197468 |
| 2026-04-06 | 16:15 ET | [SCHEDULE 13D/A](/filings/0000921895-26-000926.md) | Ownership report, active investor, amended | 0000921895-26-000926 |
| 2026-03-12 | 16:30 ET | [10-K](/filings/0001193125-26-104262.md) | Annual report, period 2025-12-31 | 0001193125-26-104262 |
| 2026-01-29 | 09:00 ET | [8-K/A](/filings/0001193125-26-028333.md) | 3.01 Delisting notice; 8.01 Other events | 0001193125-26-028333 |
| 2026-01-20 | 09:00 ET | [8-K](/filings/0001193125-26-016040.md) | 3.01 Delisting notice | 0001193125-26-016040 |
| 2025-12-16 | 20:18 ET | [8-K](/filings/0001193125-25-319653.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001193125-25-319653 |
| 2025-11-26 | 17:25 ET | [8-K](/filings/0001193125-25-300824.md) | 3.01 Delisting notice | 0001193125-25-300824 |
| 2025-11-13 | 16:30 ET | [10-Q](/filings/0001193125-25-280270.md) | Quarterly report, period 2025-09-30 | 0001193125-25-280270 |
| 2025-11-12 | 16:30 ET | [DEF 14A](/filings/0001193125-25-277747.md) | Proxy statement, period 2025-12-15 | 0001193125-25-277747 |
| 2025-08-07 | 16:30 ET | [10-Q](/filings/0000950170-25-105106.md) | Quarterly report, period 2025-06-30 | 0000950170-25-105106 |
| 2025-05-08 | 16:30 ET | [10-Q](/filings/0000950170-25-067081.md) | Quarterly report, period 2025-03-31 | 0000950170-25-067081 |
| 2025-04-30 | 11:57 ET | [10-K/A](/filings/0000950170-25-060786.md) | Annual report, amended, period 2024-12-31 | 0000950170-25-060786 |
| 2025-03-06 | 16:47 ET | [10-K](/filings/0000950170-25-034820.md) | Annual report, period 2024-12-31 | 0000950170-25-034820 |
| 2025-02-21 | 16:30 ET | [8-K](/filings/0000950170-25-024891.md) | 5.02 Departure or appointment of officers or directors | 0000950170-25-024891 |
| 2025-01-14 | 17:00 ET | [8-K](/filings/0000950170-25-005425.md) | 5.02 Departure or appointment of officers or directors | 0000950170-25-005425 |
| 2024-12-23 | 20:40 ET | [8-K](/filings/0000950170-24-139249.md) | 5.02 Departure or appointment of officers or directors | 0000950170-24-139249 |
| 2024-12-05 | 17:45 ET | [8-K](/filings/0000950170-24-133381.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000950170-24-133381 |
| 2024-11-12 | 16:39 ET | [10-Q](/filings/0000950170-24-125567.md) | Quarterly report, period 2024-09-30 | 0000950170-24-125567 |
| 2024-11-12 | 16:30 ET | [8-K](/filings/0000950170-24-125523.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-24-125523 |
| 2024-11-06 | 21:33 ET | [DEF 14A](/filings/0001193125-24-251476.md) | Proxy statement, period 2024-12-04 | 0001193125-24-251476 |
| 2024-08-08 | 07:00 ET | [8-K](/filings/0000950170-24-093291.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-24-093291 |
| 2024-08-08 | 06:45 ET | [10-Q](/filings/0000950170-24-093282.md) | Quarterly report, period 2024-06-30 | 0000950170-24-093282 |
| 2024-05-16 | 19:44 ET | [SC 13D/A](/filings/0001072613-24-000508.md) | Ownership report, active investor, amended | 0001072613-24-000508 |
| 2024-05-14 | 06:30 ET | [10-Q](/filings/0000950170-24-059064.md) | Quarterly report, period 2024-03-31 | 0000950170-24-059064 |
| 2024-05-14 | 06:30 ET | [8-K](/filings/0000950170-24-059063.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-24-059063 |
| 2024-04-29 | 16:00 ET | [10-K/A](/filings/0000950170-24-049810.md) | Annual report, amended, period 2023-12-31 | 0000950170-24-049810 |
| 2024-03-21 | 17:04 ET | [8-K](/filings/0000950170-24-034854.md) | 5.02 Departure or appointment of officers or directors | 0000950170-24-034854 |
| 2024-03-19 | 07:00 ET | [10-K](/filings/0000950170-24-033146.md) | Annual report, period 2023-12-31 | 0000950170-24-033146 |
| 2024-03-19 | 07:00 ET | [8-K](/filings/0000950170-24-033145.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-24-033145 |
| 2024-02-22 | 16:37 ET | [8-K](/filings/0001193125-24-042887.md) | 5.02 Departure or appointment of officers or directors | 0001193125-24-042887 |
| 2024-02-20 | 16:06 ET | [8-K](/filings/0001193125-24-039969.md) | 1.01 Entry into a material agreement; 3.03 Change to security holders’ rights; 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-24-039969 |
| 2024-02-16 | 16:44 ET | [SC 13D](/filings/0001937147-24-000001.md) | Ownership report, active investor | 0001937147-24-000001 |
| 2024-02-12 | 16:00 ET | [8-K](/filings/0000950170-24-013803.md) | 2.02 Results of operations; 2.05 Exit or disposal costs; 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0000950170-24-013803 |
| 2023-12-29 | 16:00 ET | [8-K](/filings/0000950170-23-073825.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000950170-23-073825 |
| 2023-11-17 | 16:00 ET | [8-K](/filings/0000950170-23-064783.md) | 5.02 Departure or appointment of officers or directors | 0000950170-23-064783 |
| 2023-11-15 | 18:54 ET | [8-K](/filings/0000950170-23-063906.md) | 5.02 Departure or appointment of officers or directors | 0000950170-23-063906 |
| 2023-11-09 | 06:44 ET | [8-K](/filings/0000950170-23-061496.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-23-061496 |
| 2023-11-09 | 06:30 ET | [10-Q](/filings/0000950170-23-061493.md) | Quarterly report, period 2023-09-30 | 0000950170-23-061493 |
| 2023-11-07 | 06:45 ET | [8-K](/filings/0000950170-23-059740.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000950170-23-059740 |
| 2023-10-13 | 16:17 ET | [SC 13D/A](/filings/0001072613-23-000521.md) | Ownership report, active investor, amended | 0001072613-23-000521 |
| 2023-10-04 | 16:27 ET | [SC 13D/A](/filings/0000947871-23-000977.md) | Ownership report, active investor, amended | 0000947871-23-000977 |
| 2023-09-29 | 08:53 ET | [8-K](/filings/0001193125-23-246542.md) | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-23-246542 |
| 2023-09-28 | 16:15 ET | [8-K](/filings/0001193125-23-245646.md) | 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-23-245646 |
| 2023-09-28 | 08:39 ET | [S-1/A](/filings/0001193125-23-244819.md) | Registration statement, amended | 0001193125-23-244819 |
| 2023-09-27 | 21:41 ET | [S-1/A](/filings/0001193125-23-242769.md) | Registration statement, amended | 0001193125-23-242769 |

Page 1 of 5. [Older](/companies/sybx/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:13 ET. No prices; not investment advice.