# Mercury Systems Inc: filings

MRCY · Nasdaq · CIK 1049521 · [Technology](/sectors/technology.md) · fiscal year ends Jun 30

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

## Reports and events: 343 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 (4 569, 8-K 236, 144 109, SC 13G/A 65, 10-Q 53, 3 33, S-8 24, SC 13G 22, DEF 14A 19, 10-K 18, 4/A 18, UPLOAD 14, SD 13, S-8 POS 12, ARS 11, CORRESP 8, SCHEDULE 13G/A 8, 424B5 6, SC 13D/A 6, 8-K/A 4, SC TO-C 4, 5 3, EFFECT 3, S-3 3, S-3ASR 3, SC 13D 3, SCHEDULE 13D/A 3, 3/A 2, 424B2 2, DEFR14A 2, 10-K/A 1, 8-A12B 1, 8-A12B/A 1, 8-A12G/A 1, DEFA14A 1, PRE 14A 1, SCHEDULE 13G 1, SC TO-I 1, SC TO-I/A 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-09-18 | 16:01 ET | [8-K](/filings/0001049521-26-000081.md) | 8.01 Other events | 0001049521-26-000081 |
| 2026-09-17 | 16:01 ET | [DEF 14A](/filings/0001049521-26-000077.md) | Proxy statement, period 2026-07-03 | 0001049521-26-000077 |
| 2026-09-16 | 08:05 ET | [8-K](/filings/0001049521-26-000073.md) | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001049521-26-000073 |
| 2026-08-18 | 17:05 ET | [10-K](/filings/0001049521-26-000045.md) | Annual report, period 2026-07-03 | 0001049521-26-000045 |
| 2026-08-18 | 16:01 ET | [8-K](/filings/0001049521-26-000043.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001049521-26-000043 |
| 2026-05-05 | 17:03 ET | [10-Q](/filings/0001049521-26-000024.md) | Quarterly report, period 2026-03-27 | 0001049521-26-000024 |
| 2026-05-05 | 16:00 ET | [8-K](/filings/0001049521-26-000021.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001049521-26-000021 |
| 2026-03-04 | 21:46 ET | [SCHEDULE 13D/A](/filings/0000902664-26-001433.md) | Ownership report, active investor, amended | 0000902664-26-001433 |
| 2026-02-03 | 17:08 ET | [10-Q](/filings/0001049521-26-000006.md) | Quarterly report, period 2025-12-26 | 0001049521-26-000006 |
| 2026-02-03 | 16:02 ET | [8-K](/filings/0001049521-26-000004.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001049521-26-000004 |
| 2025-11-10 | 18:30 ET | [SCHEDULE 13D/A](/filings/0000902664-25-004832.md) | Ownership report, active investor, amended | 0000902664-25-004832 |
| 2025-11-04 | 17:11 ET | [10-Q](/filings/0001049521-25-000062.md) | Quarterly report, period 2025-09-26 | 0001049521-25-000062 |
| 2025-11-04 | 16:12 ET | [8-K](/filings/0001049521-25-000060.md) | 1.01 Entry into a material agreement; 2.02 Results of operations; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0001049521-25-000060 |
| 2025-10-28 | 16:17 ET | [8-K](/filings/0001049521-25-000057.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 8.01 Other events | 0001049521-25-000057 |
| 2025-09-10 | 16:24 ET | [DEF 14A](/filings/0001049521-25-000029.md) | Proxy statement, period 2025-06-27 | 0001049521-25-000029 |
| 2025-08-15 | 21:30 ET | [SCHEDULE 13D/A](/filings/0000902664-25-003732.md) | Ownership report, active investor, amended | 0000902664-25-003732 |
| 2025-08-11 | 17:16 ET | [10-K](/filings/0001049521-25-000024.md) | Annual report, period 2025-06-27 | 0001049521-25-000024 |
| 2025-08-11 | 16:01 ET | [8-K](/filings/0001049521-25-000022.md) | 2.02 Results of operations | 0001049521-25-000022 |
| 2025-05-06 | 17:01 ET | [10-Q](/filings/0001049521-25-000017.md) | Quarterly report, period 2025-03-28 | 0001049521-25-000017 |
| 2025-05-06 | 16:01 ET | [8-K](/filings/0001049521-25-000014.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001049521-25-000014 |
| 2025-04-01 | 06:46 ET | [8-K](/filings/0001049521-25-000011.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors | 0001049521-25-000011 |
| 2025-02-04 | 17:08 ET | [10-Q](/filings/0001049521-25-000009.md) | Quarterly report, period 2024-12-27 | 0001049521-25-000009 |
| 2025-02-04 | 16:01 ET | [8-K](/filings/0001049521-25-000007.md) | 2.02 Results of operations; 2.05 Exit or disposal costs; 9.01 Financial statements and exhibits | 0001049521-25-000007 |
| 2025-01-06 | 16:10 ET | [8-K](/filings/0001049521-25-000003.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001049521-25-000003 |
| 2024-11-05 | 17:01 ET | [10-Q](/filings/0001049521-24-000044.md) | Quarterly report, period 2024-09-27 | 0001049521-24-000044 |
| 2024-11-05 | 16:02 ET | [8-K](/filings/0001049521-24-000042.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001049521-24-000042 |
| 2024-10-28 | 16:04 ET | [8-K](/filings/0001049521-24-000039.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 8.01 Other events | 0001049521-24-000039 |
| 2024-09-12 | 17:17 ET | [DEF 14A](/filings/0001049521-24-000036.md) | Proxy statement, period 2024-06-28 | 0001049521-24-000036 |
| 2024-08-13 | 17:08 ET | [10-K](/filings/0001049521-24-000029.md) | Annual report, period 2024-06-28 | 0001049521-24-000029 |
| 2024-08-13 | 16:01 ET | [8-K](/filings/0001049521-24-000027.md) | 1.01 Entry into a material agreement; 2.02 Results of operations; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001049521-24-000027 |
| 2024-06-18 | 17:13 ET | [8-K](/filings/0001049521-24-000023.md) | 2.05 Exit or disposal costs; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001049521-24-000023 |
| 2024-05-07 | 16:47 ET | [10-Q](/filings/0001049521-24-000017.md) | Quarterly report, period 2024-03-29 | 0001049521-24-000017 |
| 2024-05-07 | 16:00 ET | [8-K](/filings/0001049521-24-000015.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001049521-24-000015 |
| 2024-02-13 | 16:05 ET | [SC 13D/A](/filings/0000902664-24-001470.md) | Ownership report, active investor, amended | 0000902664-24-001470 |
| 2024-02-08 | 16:21 ET | [8-K](/filings/0001049521-24-000011.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001049521-24-000011 |
| 2024-02-06 | 16:24 ET | [10-Q](/filings/0001049521-24-000009.md) | Quarterly report, period 2023-12-29 | 0001049521-24-000009 |
| 2024-02-06 | 16:00 ET | [8-K](/filings/0001049521-24-000006.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001049521-24-000006 |
| 2024-01-17 | 16:09 ET | [8-K](/filings/0001049521-24-000003.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 | 0001049521-24-000003 |
| 2023-11-15 | 16:18 ET | [8-K](/filings/0001049521-23-000055.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001049521-23-000055 |
| 2023-11-07 | 16:37 ET | [10-Q](/filings/0001049521-23-000047.md) | Quarterly report, period 2023-09-29 | 0001049521-23-000047 |
| 2023-11-07 | 16:01 ET | [8-K](/filings/0001049521-23-000045.md) | 1.01 Entry into a material agreement; 2.02 Results of operations; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001049521-23-000045 |
| 2023-10-31 | 16:09 ET | [8-K](/filings/0001049521-23-000043.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 8.01 Other events | 0001049521-23-000043 |
| 2023-09-21 | 16:26 ET | [DEF 14A](/filings/0001049521-23-000034.md) | Proxy statement, period 2023-06-30 | 0001049521-23-000034 |
| 2023-08-15 | 17:26 ET | [10-K](/filings/0001049521-23-000031.md) | Annual report, period 2023-06-30 | 0001049521-23-000031 |
| 2023-08-15 | 16:00 ET | [8-K](/filings/0001049521-23-000029.md) | 2.02 Results of operations; 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 | 0001049521-23-000029 |
| 2023-07-20 | 17:11 ET | [8-K](/filings/0001049521-23-000027.md) | 5.02 Departure or appointment of officers or directors | 0001049521-23-000027 |
| 2023-07-07 | 18:19 ET | [8-K](/filings/0001049521-23-000023.md) | 1.01 Entry into a material agreement; 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001049521-23-000023 |
| 2023-07-06 | 17:20 ET | [SC 13D](/filings/0000902664-23-003840.md) | Ownership report, active investor | 0000902664-23-003840 |
| 2023-06-29 | 16:00 ET | [8-K](/filings/0001049521-23-000018.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001049521-23-000018 |
| 2023-06-23 | 16:14 ET | [8-K](/filings/0001049521-23-000015.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001049521-23-000015 |

Page 1 of 7. [Older](/companies/mrcy/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 30, 2026, 13:57 ET. No prices; not investment advice.