Starboard Value LP
activist
SEC Filings & Insider Trading Activity 2026

CIK: 1517137 129 filings
SC 13D: 70
13F-HR: 59

Latest 2026 SEC Filings — 10-K, 10-Q, 8-K & Form 4

FormFiling DatePeriodAnalysisSEC
13F-HR
Feb 17, 2026Dec 31, 2025
13F-HR
Nov 14, 2025Sep 30, 2025
13F-HR
Aug 14, 2025Jun 30, 2025
13F-HR
May 15, 2025Mar 31, 2025
13F-HR
Feb 14, 2025Dec 31, 2024
SC 13D
Nov 26, 2024
13F-HR
Nov 14, 2024Sep 30, 2024
13F-HR
Aug 14, 2024Jun 30, 2024
SC 13D
Jul 15, 2024
13F-HR
May 15, 2024Mar 31, 2024
SC 13D
Feb 21, 2024
13F-HR
Feb 14, 2024Dec 31, 2023
13F-HR
Nov 14, 2023Sep 30, 2023
SC 13D
Oct 17, 2023
SC 13D
Aug 18, 2023
13F-HR
Aug 11, 2023Jun 30, 2023
SC 13D
Jun 30, 2023
13F-HR
May 12, 2023Mar 31, 2023
SC 13D
Mar 6, 2023
13F-HR
Feb 14, 2023Dec 31, 2022
SC 13D
Feb 6, 2023
13F-HR
Nov 14, 2022Sep 30, 2022
SC 13D
Nov 8, 2022
SC 13D
Oct 20, 2022
SC 13D
Sep 16, 2022

Frequently Asked Questions

Where can I find Starboard Value LP insider trading activity (Form 4)?

SignalX aggregates every Starboard Value LP Form 4 insider transaction from SEC EDGAR. Form 4 reports show when officers, directors, and 10% shareholders buy or sell company stock, with transaction code, share count, and price per share.

How often does Starboard Value LP file with the SEC?

Starboard Value LP files a 10-K annual report once per year (typically within 60 days of fiscal year-end) and 10-Q quarterly reports three times per year. 8-K current reports are filed as needed when material events occur, and Form 4 insider transaction reports are due within two business days of a trade. SignalX monitors SEC EDGAR daily to surface every new Starboard Value LP filing with AI-powered analysis.

What is the difference between 10-K, 10-Q, and 8-K SEC filings?

A 10-K is a comprehensive annual report with audited financials, business overview, and risk factors. A 10-Q is a shorter quarterly report with unaudited financials and management discussion. An 8-K is a current report filed when a material event occurs — such as earnings releases, executive changes, acquisitions, or other significant developments. SignalX provides AI-generated summaries for all three filing types for Starboard Value LP.

What is Starboard Value LP's SEC CIK number?

Starboard Value LP's SEC CIK (Central Index Key) number is 1517137. The CIK is a unique identifier assigned by the SEC to every filing entity. You can use CIK 1517137 to look up all Starboard Value LP filings on SEC EDGAR, or browse them here on SignalX with AI-powered analysis.

Where can I find Starboard Value LP return on equity (ROE) and financial data?

SignalX extracts XBRL financial data from Starboard Value LP 10-K annual filings, including revenue, net income, gross profit, operating income, EPS, total assets, stockholders' equity, and operating cash flow. Return on equity (ROE) can be derived from net income divided by stockholders' equity. Multi-year financial trends are displayed in the Financial Summary table above.

Stay on top of Starboard Value LP SEC filings

Insider trading data, fund holdings, cross-signal detection, and AI-powered analysis for 129+ filings.