# Adaptimmune Therapeutics PLC: filings

ADAPY · OTC · CIK 1621227 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

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

## Reports and events: 279 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 (4 310, 8-K 197, 3 41, SC 13G/A 32, 10-Q 29, 6-K 20, CORRESP 16, 144 13, SC 13G 13, UPLOAD 13, 10-K 9, 424B5 9, CT ORDER 9, DEF 14A 9, PRE 14A 8, SCHEDULE 13G/A 8, EFFECT 7, SC 13D/A 6, 425 5, S-8 POS 5, S-3 4, S-3/A 3, S-8 3, 10-Q/A 2, 20-F 2, 424B3 2, 8-K/A 2, ARS 2, F-1/A 2, S-3ASR 2, SC 13D 2, SCHEDULE 13G 2, 15-12G 1, 25 1, 424B4 1, 8-A12B 1, CERTNAS 1, D 1, DRS 1, DRS/A 1, DRSLTR 1, F-1 1, F-1MEF 1, NT 10-K 1, POS AM 1, RW 1, S-4 1, S-4/A 1, SCHEDULE 13D/A 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2025-10-20 | 07:50 ET | [8-K](/filings/0001104659-25-100618.md) | 3.01 Delisting notice; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-100618 |
| 2025-09-26 | 16:30 ET | [8-K](/filings/0001104659-25-093882.md) | 3.01 Delisting notice | 0001104659-25-093882 |
| 2025-09-12 | 16:27 ET | [8-K](/filings/0001104659-25-089558.md) | 3.01 Delisting notice | 0001104659-25-089558 |
| 2025-09-08 | 16:05 ET | [8-K](/filings/0001558370-25-011925.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-25-011925 |
| 2025-08-29 | 16:30 ET | [8-K](/filings/0001558370-25-011820.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-25-011820 |
| 2025-08-19 | 18:53 ET | [SCHEDULE 13D/A](/filings/0001072613-25-000670.md) | Ownership report, active investor, amended | 0001072613-25-000670 |
| 2025-08-15 | 16:30 ET | [8-K](/filings/0001558370-25-011616.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-25-011616 |
| 2025-08-14 | 16:31 ET | [8-K](/filings/0001558370-25-011579.md) | 3.01 Delisting notice | 0001558370-25-011579 |
| 2025-08-13 | 07:47 ET | [10-Q](/filings/0001558370-25-011307.md) | Quarterly report, period 2025-06-30 | 0001558370-25-011307 |
| 2025-08-13 | 07:37 ET | [8-K](/filings/0001558370-25-011304.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-25-011304 |
| 2025-08-07 | 16:30 ET | [8-K](/filings/0001558370-25-010785.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-25-010785 |
| 2025-07-31 | 17:02 ET | [8-K](/filings/0001104659-25-072753.md) | 1.02 Termination of a material agreement; 2.01 Completion of an acquisition or disposition; 9.01 Financial statements and exhibits | 0001104659-25-072753 |
| 2025-07-28 | 07:37 ET | [8-K](/filings/0001104659-25-071009.md) | 1.01 Entry into a material agreement; 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 | 0001104659-25-071009 |
| 2025-07-17 | 16:30 ET | [8-K](/filings/0001558370-25-009278.md) | 8.01 Other events | 0001558370-25-009278 |
| 2025-05-29 | 16:05 ET | [8-K](/filings/0001104659-25-054232.md) | 5.07 Shareholder vote results | 0001104659-25-054232 |
| 2025-05-13 | 16:05 ET | [10-Q](/filings/0001558370-25-007571.md) | Quarterly report, period 2025-03-31 | 0001558370-25-007571 |
| 2025-05-13 | 07:35 ET | [8-K](/filings/0001558370-25-007493.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-25-007493 |
| 2025-05-01 | 16:15 ET | [8-K](/filings/0001104659-25-043522.md) | 3.01 Delisting notice | 0001104659-25-043522 |
| 2025-04-25 | 08:02 ET | [DEF 14A](/filings/0001104659-25-039042.md) | Proxy statement, period 2025-05-29 | 0001104659-25-039042 |
| 2025-04-14 | 16:10 ET | [8-K](/filings/0001558370-25-004768.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-25-004768 |
| 2025-03-24 | 16:44 ET | [10-K](/filings/0001558370-25-003544.md) | Annual report, period 2024-12-31 | 0001558370-25-003544 |
| 2025-03-24 | 16:40 ET | [8-K](/filings/0001558370-25-003542.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001558370-25-003542 |
| 2025-03-20 | 07:09 ET | [8-K](/filings/0001558370-25-003340.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001558370-25-003340 |
| 2024-12-19 | 07:40 ET | [8-K](/filings/0001558370-24-016371.md) | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001558370-24-016371 |
| 2024-11-13 | 16:19 ET | [10-Q](/filings/0001558370-24-015532.md) | Quarterly report, period 2024-09-30 | 0001558370-24-015532 |
| 2024-11-13 | 16:10 ET | [8-K](/filings/0001558370-24-015525.md) | 2.02 Results of operations; 2.05 Exit or disposal costs; 9.01 Financial statements and exhibits | 0001558370-24-015525 |
| 2024-11-13 | 09:10 ET | [8-K](/filings/0001558370-24-015446.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001558370-24-015446 |
| 2024-11-01 | 17:00 ET | [8-K](/filings/0001558370-24-014148.md) | 3.01 Delisting notice | 0001558370-24-014148 |
| 2024-09-23 | 16:15 ET | [8-K](/filings/0001558370-24-012960.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001558370-24-012960 |
| 2024-08-12 | 07:23 ET | [10-Q](/filings/0001558370-24-011798.md) | Quarterly report, period 2024-06-30 | 0001558370-24-011798 |
| 2024-08-12 | 07:05 ET | [8-K](/filings/0001558370-24-011793.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-24-011793 |
| 2024-08-02 | 07:00 ET | [8-K](/filings/0001104659-24-085098.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-085098 |
| 2024-07-16 | 16:30 ET | [8-K](/filings/0001558370-24-009854.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-24-009854 |
| 2024-06-11 | 16:15 ET | [8-K](/filings/0001558370-24-009053.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-24-009053 |
| 2024-05-30 | 16:09 ET | [8-K](/filings/0001558370-24-008778.md) | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001558370-24-008778 |
| 2024-05-15 | 16:05 ET | [10-Q](/filings/0001558370-24-008287.md) | Quarterly report, period 2024-03-31 | 0001558370-24-008287 |
| 2024-05-15 | 07:39 ET | [8-K](/filings/0001558370-24-008210.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-24-008210 |
| 2024-05-15 | 07:14 ET | [8-K](/filings/0001558370-24-008208.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001558370-24-008208 |
| 2024-05-14 | 07:34 ET | [8-K](/filings/0001104659-24-060884.md) | 5.07 Shareholder vote results | 0001104659-24-060884 |
| 2024-04-12 | 08:05 ET | [8-K](/filings/0001558370-24-004997.md) | 1.02 Termination of a material agreement; 9.01 Financial statements and exhibits | 0001558370-24-004997 |
| 2024-04-11 | 08:00 ET | [DEF 14A](/filings/0001104659-24-046093.md) | Proxy statement, period 2024-05-14 | 0001104659-24-046093 |
| 2024-04-02 | 20:38 ET | [SC 13D/A](/filings/0001072613-24-000360.md) | Ownership report, active investor, amended | 0001072613-24-000360 |
| 2024-03-06 | 07:12 ET | [10-K](/filings/0001558370-24-002537.md) | Annual report, period 2023-12-31 | 0001558370-24-002537 |
| 2024-03-06 | 07:05 ET | [8-K](/filings/0001558370-24-002536.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-24-002536 |
| 2024-02-27 | 08:13 ET | [8-K](/filings/0001558370-24-001756.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001558370-24-001756 |
| 2024-02-16 | 16:05 ET | [8-K](/filings/0001558370-24-001304.md) | 3.01 Delisting notice | 0001558370-24-001304 |
| 2024-01-31 | 17:07 ET | [8-K](/filings/0001558370-24-000672.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001558370-24-000672 |
| 2024-01-04 | 07:46 ET | [8-K](/filings/0001558370-24-000041.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001558370-24-000041 |
| 2023-12-06 | 07:13 ET | [8-K](/filings/0001558370-23-019493.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001558370-23-019493 |
| 2023-11-14 | 07:30 ET | [8-K](/filings/0001558370-23-018912.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001558370-23-018912 |

Page 1 of 6. [Older](/companies/adapy/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:14 ET. No prices; not investment advice.