ARM Arm HoldingscompanySEC Filings & Insider Trading Activity 2026
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13F Fund Holdings: Quarterly Trend
Latest: Q1 2026Aggregate ARM share value held by 13F filers tracked by SignalX, by quarter.
- FMR LLC (Fidelity)+718.5K (+42%)
- Morgan Stanley+680.8K (+18%)
- Bridgewater Associates LP+267.0K (+82%)
- Millennium Management+182.7K (+17%)
- Citigroup+170.3K (+20%)
- Goldman Sachs Group4.22M (-51%)
- Bank of America Corp1.64M (-70%)
- Citadel Advisors LLC1.31M (-17%)
- Two Sigma Investments684.2K (-48%)
- D.E. Shaw & Co645.1K (-33%)
- Franklin Resources+1.55M
- Truist Financial+1.6K
- Invesco Ltd−2.43M
- JPMorgan Chase & Co−979.7K
Source: 13F-HR filings on SEC EDGAR (aggregated from 209 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe.
Frequently Asked Questions
Where can I find ARM insider trading activity (Form 4)?
SignalX aggregates every ARM 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 ARM file with the SEC?
Arm Holdings (ARM) 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 ARM 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 Arm Holdings (ARM).
What is ARM's SEC CIK number?
Arm Holdings (ARM)'s SEC CIK (Central Index Key) number is 1973239. The CIK is a unique identifier assigned by the SEC to every filing entity. You can use CIK 1973239 to look up all ARM filings on SEC EDGAR, or browse them here on SignalX with AI-powered analysis.
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