# X4 Pharmaceuticals, Inc: filings

XFOR · Nasdaq · CIK 1501697 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

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

## Reports and events: 214 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 (4 256, 8-K 141, 3 59, 144 42, SC 13G/A 37, 10-Q 26, SC 13G 20, CORRESP 19, S-8 17, UPLOAD 17, 4/A 14, EFFECT 14, 424B5 12, S-3 12, SCHEDULE 13G/A 12, DEF 14A 11, DEFA14A 11, SCHEDULE 13G 11, D 10, 10-K 9, 424B3 7, SC 13D 7, SC 13D/A 7, 8-K/A 6, 425 5, ARS 3, PRE 14A 3, CT ORDER 2, D/A 2, FWP 2, S-1/A 2, SCHEDULE 13D 2, SCHEDULE 13D/A 2, 424B1 1, 8-A12B 1, CERTNAS 1, DRS 1, DRS/A 1, DRSLTR 1, S-1 1, S-3/A 1, S-4 1, S-4/A 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-08 | 17:23 ET | [8-K](/filings/0001501697-26-000081.md) | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001501697-26-000081 |
| 2026-09-09 | 17:36 ET | [8-K](/filings/0001501697-26-000076.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001501697-26-000076 |
| 2026-09-08 | 07:15 ET | [8-K](/filings/0001501697-26-000072.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001501697-26-000072 |
| 2026-08-06 | 16:08 ET | [10-Q](/filings/0001501697-26-000068.md) | Quarterly report, period 2026-06-30 | 0001501697-26-000068 |
| 2026-07-01 | 16:13 ET | [8-K](/filings/0001501697-26-000060.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001501697-26-000060 |
| 2026-05-13 | 16:57 ET | [8-K/A](/filings/0001501697-26-000051.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001501697-26-000051 |
| 2026-05-12 | 16:21 ET | [8-K](/filings/0001501697-26-000047.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results | 0001501697-26-000047 |
| 2026-05-06 | 07:01 ET | [10-Q](/filings/0001501697-26-000040.md) | Quarterly report, period 2026-03-31 | 0001501697-26-000040 |
| 2026-03-20 | 08:45 ET | [DEF 14A](/filings/0001501697-26-000031.md) | Proxy statement, period 2026-03-20 | 0001501697-26-000031 |
| 2026-03-17 | 06:59 ET | [10-K](/filings/0001501697-26-000018.md) | Annual report, period 2025-12-31 | 0001501697-26-000018 |
| 2025-11-05 | 08:25 ET | [10-Q](/filings/0001501697-25-000043.md) | Quarterly report, period 2025-09-30 | 0001501697-25-000043 |
| 2025-11-05 | 08:05 ET | [8-K](/filings/0001501697-25-000041.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001501697-25-000041 |
| 2025-10-29 | 18:04 ET | [SCHEDULE 13D/A](/filings/0001072613-25-000747.md) | Ownership report, active investor, amended | 0001072613-25-000747 |
| 2025-10-27 | 18:47 ET | [8-K](/filings/0001501697-25-000032.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001501697-25-000032 |
| 2025-09-17 | 07:03 ET | [8-K](/filings/0001501697-25-000021.md) | 2.05 Exit or disposal costs; 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001501697-25-000021 |
| 2025-08-25 | 08:12 ET | [8-K](/filings/0001501697-25-000008.md) | 5.02 Departure or appointment of officers or directors | 0001501697-25-000008 |
| 2025-08-18 | 16:26 ET | [SCHEDULE 13D](/filings/0001104659-25-079821.md) | Ownership report, active investor | 0001104659-25-079821 |
| 2025-08-15 | 16:54 ET | [SCHEDULE 13D/A](/filings/0001072613-25-000643.md) | Ownership report, active investor, amended | 0001072613-25-000643 |
| 2025-08-13 | 21:40 ET | [SCHEDULE 13D](/filings/0000950170-25-108341.md) | Ownership report, active investor | 0000950170-25-108341 |
| 2025-08-13 | 08:13 ET | [8-K](/filings/0001501697-25-000006.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001501697-25-000006 |
| 2025-08-12 | 08:25 ET | [8-K](/filings/0001628280-25-039770.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-25-039770 |
| 2025-08-08 | 17:03 ET | [10-Q](/filings/0001628280-25-039327.md) | Quarterly report, period 2025-06-30 | 0001628280-25-039327 |
| 2025-06-23 | 16:34 ET | [8-K](/filings/0001628280-25-032627.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001628280-25-032627 |
| 2025-06-11 | 16:17 ET | [8-K](/filings/0001628280-25-030743.md) | 5.07 Shareholder vote results | 0001628280-25-030743 |
| 2025-05-01 | 09:22 ET | [10-Q](/filings/0001628280-25-021358.md) | Quarterly report, period 2025-03-31 | 0001628280-25-021358 |
| 2025-05-01 | 06:25 ET | [8-K](/filings/0001628280-25-021304.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure | 0001628280-25-021304 |
| 2025-04-25 | 16:44 ET | [DEF 14A](/filings/0001628280-25-019926.md) | Proxy statement, period 2025-04-25 | 0001628280-25-019926 |
| 2025-04-24 | 08:57 ET | [8-K](/filings/0001628280-25-019507.md) | 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-25-019507 |
| 2025-04-18 | 16:18 ET | [8-K](/filings/0001628280-25-018389.md) | 5.07 Shareholder vote results | 0001628280-25-018389 |
| 2025-03-26 | 18:16 ET | [10-K](/filings/0001628280-25-014805.md) | Annual report, period 2024-12-31 | 0001628280-25-014805 |
| 2025-03-25 | 07:51 ET | [8-K](/filings/0001628280-25-014601.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-014601 |
| 2025-03-24 | 16:43 ET | [DEF 14A](/filings/0001628280-25-014535.md) | Proxy statement, period 2025-03-24 | 0001628280-25-014535 |
| 2025-03-03 | 17:02 ET | [8-K](/filings/0001628280-25-009490.md) | 8.01 Other events | 0001628280-25-009490 |
| 2025-02-06 | 16:06 ET | [8-K](/filings/0001628280-25-004254.md) | 2.05 Exit or disposal costs; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-25-004254 |
| 2025-01-13 | 07:50 ET | [8-K](/filings/0001628280-25-001239.md) | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-25-001239 |
| 2024-11-13 | 09:02 ET | [10-Q](/filings/0001628280-24-047445.md) | Quarterly report, period 2024-09-30 | 0001628280-24-047445 |
| 2024-11-13 | 08:11 ET | [8-K](/filings/0001628280-24-047433.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-24-047433 |
| 2024-11-13 | 06:12 ET | [8-K](/filings/0001628280-24-047406.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-047406 |
| 2024-08-16 | 16:03 ET | [8-K](/filings/0001628280-24-037546.md) | 3.01 Delisting notice | 0001628280-24-037546 |
| 2024-08-09 | 16:28 ET | [8-K](/filings/0001628280-24-036495.md) | 7.01 Regulation FD disclosure | 0001628280-24-036495 |
| 2024-08-08 | 16:08 ET | [10-Q](/filings/0001628280-24-036127.md) | Quarterly report, period 2024-06-30 | 0001628280-24-036127 |
| 2024-08-08 | 06:40 ET | [8-K](/filings/0001628280-24-035848.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-035848 |
| 2024-07-19 | 08:17 ET | [8-K](/filings/0001628280-24-032266.md) | 7.01 Regulation FD disclosure | 0001628280-24-032266 |
| 2024-06-27 | 08:01 ET | [8-K](/filings/0001628280-24-030243.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-24-030243 |
| 2024-06-11 | 16:14 ET | [8-K](/filings/0001628280-24-027680.md) | 5.07 Shareholder vote results | 0001628280-24-027680 |
| 2024-05-22 | 08:09 ET | [8-K](/filings/0001628280-24-024633.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-24-024633 |
| 2024-05-09 | 06:58 ET | [8-K](/filings/0001628280-24-021937.md) | 1.01 Entry into a material agreement; 2.01 Completion of an acquisition or disposition; 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-24-021937 |
| 2024-05-07 | 16:23 ET | [10-Q](/filings/0001628280-24-021120.md) | Quarterly report, period 2024-03-31 | 0001628280-24-021120 |
| 2024-05-07 | 06:28 ET | [8-K](/filings/0001628280-24-020827.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-020827 |
| 2024-04-29 | 16:54 ET | [DEF 14A](/filings/0001628280-24-019056.md) | Proxy statement, period 2024-04-29 | 0001628280-24-019056 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 29, 2026, 10:01 ET. No prices; not investment advice.