Starboard Principal Co GP LLC
Follow13F filer, CIK 1517140, New York, NY
Starboard Principal Co GP LLC filed a 13F-NT notice for the quarter ended 2026-06-30 on 2026-08-14.
Filed (acceptance time not in the bulk data set), ingested 13F-NT 0000921895-26-002175
This filer reports no holdings of its own for Q2 2026. It filed a 13F-NT notice, and its holdings are in the report of . How notices are handled.
Changes against Q1 2026 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 Starboard Value LP
Feld Peter ASmith Jeffrey C
- Feld Peter A
- Smith Jeffrey C
- Starboard Principal Co LP
- Starboard Value GP LLC
- Starboard Value LP
- Starboard G Fund, L.P.
- Starboard Value G GP, LLC
- Starboard Value A GP LLC
- Starboard Value A LP
- Starboard Value L LP
- Starboard Value & Opportunity Master Fund L LP
- STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD
- STARBOARD VALUE & OPPORTUNITY S LLC
- Starboard Value R GP LLC
- Starboard X Master Fund Ltd
Stakes and trades reported after 2026-06-30
13D, 13G and Form 4 filings by this filer's group, dated after the 13F period, on securities the quarter does not hold as shares.
- QRVO QORVO INC: 13D/A 0 shares, 0% of the class, 13D/A filed 2026-10-06, 0000921895-26-002741Timeline
Accepted , ingested
How Q2 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 0000921895-26-002175 | notice | 2026-08-14 | 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 |
|---|---|---|---|---|
| 13D/A 0000921895-26-002741 | QRVO | 2026-10-06 | ||
| 13F-NT 0000921895-26-002175 | Quarter ended 2026-06-30 | 2026-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-26-001406 | Quarter ended 2026-03-31 | 2026-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-26-000453 | Quarter ended 2025-12-31 | 2026-02-17 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-25-003103 | Quarter ended 2025-09-30 | 2025-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-25-002297 | Quarter ended 2025-06-30 | 2025-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-25-001535 | Quarter ended 2025-03-31 | 2025-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-25-000472 | Quarter ended 2024-12-31 | 2025-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-24-002735 | Quarter ended 2024-09-30 | 2024-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-24-001828 | Quarter ended 2024-06-30 | 2024-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-24-001236 | Quarter ended 2024-03-31 | 2024-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-24-000484 | Quarter ended 2023-12-31 | 2024-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-23-002637 | Quarter ended 2023-09-30 | 2023-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-23-001908 | Quarter ended 2023-06-30 | 2023-08-11 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-23-001170 | Quarter ended 2023-03-31 | 2023-05-12 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-23-000555 | Quarter ended 2022-12-31 | 2023-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-22-003036 | Quarter ended 2022-09-30 | 2022-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-22-002423 | Quarter ended 2022-06-30 | 2022-08-12 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-22-001634 | Quarter ended 2022-03-31 | 2022-05-13 | acceptance time not in the bulk data set | |
| 13F-NT 0001193805-22-000318 | Quarter ended 2021-12-31 | 2022-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-21-002609 | Quarter ended 2021-09-30 | 2021-11-12 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-21-002058 | Quarter ended 2021-06-30 | 2021-08-13 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-21-001327 | Quarter ended 2021-03-31 | 2021-05-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-21-000467 | Quarter ended 2020-12-31 | 2021-02-16 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-20-002941 | Quarter ended 2020-09-30 | 2020-11-13 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-20-002250 | Quarter ended 2020-06-30 | 2020-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-20-001447 | Quarter ended 2020-03-31 | 2020-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-20-000564 | Quarter ended 2019-12-31 | 2020-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-19-002790 | Quarter ended 2019-09-30 | 2019-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-19-002240 | Quarter ended 2019-06-30 | 2019-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-19-001494 | Quarter ended 2019-03-31 | 2019-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-19-000441 | Quarter ended 2018-12-31 | 2019-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-18-003051 | Quarter ended 2018-09-30 | 2018-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-18-002333 | Quarter ended 2018-06-30 | 2018-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-18-001711 | Quarter ended 2018-03-31 | 2018-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-18-000651 | Quarter ended 2017-12-31 | 2018-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-17-002620 | Quarter ended 2017-09-30 | 2017-11-13 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-17-002116 | Quarter ended 2017-06-30 | 2017-08-11 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-17-001462 | Quarter ended 2017-03-31 | 2017-05-12 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-17-000394 | Quarter ended 2016-12-31 | 2017-02-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-16-006101 | Quarter ended 2016-09-30 | 2016-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-16-005441 | Quarter ended 2016-06-30 | 2016-08-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-16-004511 | Quarter ended 2016-03-31 | 2016-05-13 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-16-003332 | Quarter ended 2015-12-31 | 2016-02-16 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-15-002518 | Quarter ended 2015-09-30 | 2015-11-13 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-15-002008 | Quarter ended 2015-06-30 | 2015-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-15-001379 | Quarter ended 2015-03-31 | 2015-05-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-15-000439 | Quarter ended 2014-12-31 | 2015-02-17 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-14-002449 | Quarter ended 2014-09-30 | 2014-11-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-14-001874 | Quarter ended 2014-06-30 | 2014-08-14 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-14-001065 | Quarter ended 2014-03-31 | 2014-05-12 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-14-000225 | Quarter ended 2013-12-31 | 2014-02-13 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-13-002206 | Quarter ended 2013-09-30 | 2013-11-12 | acceptance time not in the bulk data set | |
| 13F-NT 0000921895-13-001605 | Quarter ended 2013-06-30 | 2013-08-08 | acceptance time not in the bulk data set |