Alyeska Master Fund, L.P.
Follow13F filer, CIK 1456506, CHICAGO, IL
Alyeska Master Fund, L.P. filed a 13F-NT notice for the quarter ended 2026-03-31 on 2026-05-15.
Filed (acceptance time not in the bulk data set), ingested 13F-NT 0001172661-26-002288
This filer reports no holdings of its own for Q1 2026. It filed a 13F-NT notice, and its holdings are in the report of . How notices are handled.
Changes against Q4 2025 are not shown: it was a notice, with the holdings in another manager's report (0 positions on file), so every position would read as new.
Part of the filer group Alyeska Investment Group, L.P.
How groups are builtHow Q1 2026 was built
Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).
| Filing | Role | Amendment | Filed | Accepted | Ingested |
|---|---|---|---|---|---|
| 13F-NT 0001172661-26-002288 | notice | 2026-05-15 | acceptance time not in the bulk data set |
Filings
Every filing of this filer: 13F reports and notices, the 13D and 13G it filed or is a reporting person of, and Forms 3, 4 and 5 it reported as an owner.
| Filing | Subject | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-NT 0001172661-26-002288 | Quarter ended 2026-03-31 | 2026-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-26-000811 | Quarter ended 2025-12-31 | 2026-02-17 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-25-005153 | Quarter ended 2025-09-30 | 2025-11-17 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-25-003462 | Quarter ended 2025-06-30 | 2025-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-25-002317 | Quarter ended 2025-03-31 | 2025-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-25-001148 | Quarter ended 2024-12-31 | 2025-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-24-005189 | Quarter ended 2024-09-30 | 2024-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-24-003534 | Quarter ended 2024-06-30 | 2024-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-24-002474 | Quarter ended 2024-03-31 | 2024-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-24-001417 | Quarter ended 2023-12-31 | 2024-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-23-003996 | Quarter ended 2023-09-30 | 2023-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-23-003121 | Quarter ended 2023-06-30 | 2023-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-23-002236 | Quarter ended 2023-03-31 | 2023-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-23-001130 | Quarter ended 2022-12-31 | 2023-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-22-002524 | Quarter ended 2022-09-30 | 2022-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-22-001968 | Quarter ended 2022-06-30 | 2022-08-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-22-001429 | Quarter ended 2022-03-31 | 2022-05-16 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-22-000773 | Quarter ended 2021-12-31 | 2022-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-21-002304 | Quarter ended 2021-09-30 | 2021-11-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-21-001768 | Quarter ended 2021-06-30 | 2021-08-16 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-21-001319 | Quarter ended 2021-03-31 | 2021-05-17 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-21-000856 | Quarter ended 2020-12-31 | 2021-02-16 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-20-002196 | Quarter ended 2020-09-30 | 2020-11-16 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-20-001755 | Quarter ended 2020-06-30 | 2020-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-20-001250 | Quarter ended 2020-03-31 | 2020-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-20-000585 | Quarter ended 2019-12-31 | 2020-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-19-002295 | Quarter ended 2019-09-30 | 2019-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-19-001730 | Quarter ended 2019-06-30 | 2019-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-19-001265 | Quarter ended 2019-03-31 | 2019-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-19-000661 | Quarter ended 2018-12-31 | 2019-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001172661-18-002111 | Quarter ended 2018-09-30 | 2018-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-18-000113 | Quarter ended 2018-06-30 | 2018-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-18-000072 | Quarter ended 2018-03-31 | 2018-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001453072-18-000036 | Quarter ended 2017-12-31 | 2018-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-17-000174 | Quarter ended 2017-09-30 | 2017-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-17-000135 | Quarter ended 2017-06-30 | 2017-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-17-000097 | Quarter ended 2017-03-31 | 2017-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001453072-17-000023 | Quarter ended 2016-12-31 | 2017-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-16-000316 | Quarter ended 2016-09-30 | 2016-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-16-000289 | Quarter ended 2016-06-30 | 2016-08-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-16-000264 | Quarter ended 2016-03-31 | 2016-05-16 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-16-000221 | Quarter ended 2015-12-31 | 2016-02-16 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-15-000166 | Quarter ended 2015-09-30 | 2015-11-16 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-15-000130 | Quarter ended 2015-06-30 | 2015-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-15-000088 | Quarter ended 2015-03-31 | 2015-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-15-000036 | Quarter ended 2014-12-31 | 2015-02-17 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-14-000208 | Quarter ended 2014-09-30 | 2014-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-14-000172 | Quarter ended 2014-06-30 | 2014-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-14-000113 | Quarter ended 2014-03-31 | 2014-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-14-000033 | Quarter ended 2013-12-31 | 2014-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-13-000132 | Quarter ended 2013-09-30 | 2013-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0001164691-13-000093 | Quarter ended 2013-06-30 | 2013-08-14 | acceptance time not in the bulk data set |