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Inside-Filings automatically analyzes public SEC filings — Form 4 (insiders), 13F (fund holdings), 13D/13G (activists), 8-K (corporate events) and 10-K/10-Q metrics from XBRL — and turns them into signals you can trace back to the source. Every analysis links back to the original filing — independent, transparent and without an expensive data terminal. Create your free account now and start watching your stocks right away.
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Please note: The detailed reports linked below are currently available in German only; we are translating them step by step.
Included with your free account
Watchlist & alerts
Keep an eye on the stocks you follow and get an email as soon as a signal changes. No more combing through quarterly reports by hand.
Paper trading account
Start with €100,000 in virtual cash, buy and sell without risk and track your performance over time. No real money involved.
Signal notifications
Get an email when a stock you follow receives a new signal. The alert cites the underlying SEC filing, so you stay up to date without checking constantly.
Filing analysis by email
We read 10-K, 10-Q and 8-K filings automatically and report what stands out — a lowered forecast, a change of auditor, a going-concern warning. You receive a short summary and a link to the original filing, shortly after it is published by the SEC. The full breakdown is part of the paid subscription. Both are currently provided in German.
What is Inside-Filings?
Inside-Filings is an analysis platform for US equities that automatically analyzes publicly available SEC filings and translates them into signals you can understand. Every day we process thousands of filings submitted to the US securities regulator — Form 4 (insider transactions), 13F (fund holdings), 13D/13G (activists), 8-K (material corporate events), 10-K/10-Q (fundamentals via XBRL) and more — and turn them into traceable, source-backed assessments.
Who is it for? Retail investors, financial journalists and analysts who want to make informed decisions based on institutional market data — without an expensive data terminal.
What we do not do: Inside-Filings is not a broker and does not execute orders. We do not provide personalized investment advice. All analyses are based on mandatory public disclosures, supplemented by licensed price data, and constitute neither investment advice nor a recommendation tailored to your personal circumstances.
Who is buying what: 13F funds and insiders side by side
Every position a US fund holds, and every purchase by a corporate insider, must be disclosed — spread across tens of thousands of individual documents. We bring both together: which type of buyer is building a position in which stock, at what weight and at what point in time. Filterable by sector, market capitalization, buyer type and date range.
Who is buying this stock?
The cross-source entry point: one counter per stock showing how many independent groups of buyers are active at the same time — insiders, 13F funds, activists and Congress.
Buyer confluence per stock
Which buyers picked up a stock over a 180-day window — and whether they acted independently of each other or in lockstep.
New buys from top funds
New positions from the funds with the best track records — with portfolio weight and the number of funds opening the same position at the same time.
Fund × stock matrix
Which fund holds which stock? The complete matrix from all 13F filings, with quarter-on-quarter comparison and position changes.
Clusters: several buyers at once
When several buyers build positions in the same stock within a few days — the case that stands out most clearly from a single purchase in the data.
Position changes per quarter
Who added and who reduced? Changes in holdings from 13F filings across four quarters, sortable and filterable.
Insider transactions in detail
Officers, directors and major shareholders must disclose reportable securities transactions within two business days via Form 4. We analyze every one of these filings.
All transactions
Open-market transactions from SEC Form 4 over the last 90 days of $10,000 and above — with volume, the role of the person trading and price context.
Insider conviction scanner
Not every purchase carries the same weight: weighted by the buyer's role, order size within the range we analyzed, and whether several insiders are buying at the same time.
13F tracker: where institutional capital flows
Every institutional investment manager with investment discretion over at least $100 million in Section 13(f) securities must disclose those positions quarterly — Form 13F. This reveals which stocks are attracting capital and which are being sold off.
Top capital flows per stock
Net inflows and outflows per stock across all reporting funds — the direction of institutional money, quarter-on-quarter.
Capital allocation by sector
Which sector is attracting institutional money, which is losing it? Sector rotation from 13F holdings, with quarter-on-quarter comparison.
Institutional capital per stock
How much institutional money sits in a stock in total — the sum across all 13F filers.
What funds and ETFs actually hold
Every fund and every ETF registered in the US must disclose its complete holdings — equities, bonds, weighting, quantity. We make these filings (Form N-PORT) searchable: composition, fund flows and returns per share class.
Composition of a fund or ETF
What is actually in it? The complete list of securities held as of the most recent reporting date — equities and bonds with weight and quantity.
Fund and ETF directory
Browse by fund company: which funds and ETFs belong to it and how they are positioned.
Inflows and outflows
Which fund is taking in fresh money and which is bleeding assets — from the monthly flow data in N-PORT reports.
Return ranking of funds and ETFs
Total-return ranking of US-registered funds, calculated from the monthly returns reported to the SEC per share class.
Funds with international holdings
An analysis of funds and ETFs that invest outside the core US market.
SEC filings and international disclosures in full text
Not just the US: we also cover mandatory disclosures from Japan, the United Kingdom and the EU.
Activist filings (13D/13G)
As soon as an investor holds more than five percent of a company, it becomes reportable — with activist 13D filings, including the stated intent.
Major holdings — Japan, UK, Germany
Major shareholder notifications from EDINET (Japan), Companies House (UK) and BaFin voting rights notifications under sections 33/38/39 WpHG.
European directors' dealings
Insider transactions from Germany, France, Sweden, Spain and the Netherlands under the EU Market Abuse Regulation.
Net short sellers
Who is betting against which stock? Reportable net short positions from seven European registers and Japan.
Futures positioning (COT)
How commercials and speculators are positioned in the futures markets — from the weekly CFTC reports.
Cyber incidents (8-K Item 1.05)
Since December 18, 2023, a US-listed company must disclose a material cyber incident within four business days of determining materiality.
Fails to deliver
Unsettled share deliveries as an indication of short pressure — twice monthly, straight from the SEC.
Filings dashboard
The daily stream of all incoming SEC filings — 8-K, 10-K, 10-Q, Form 4 and more, filtered by type.
Market-wide analysis
The total institutionally held capital per stock — where does the most money sit in aggregate?
Signals: from filings to an assessment
We condense ten weighted components into the Glück Conviction Score. Every figure remains traceable to its source.
Score ranking
Every scored stock, sorted by overall score — with the individual components it is built from.
Combined signal
The strongest conviction: stocks where insiders are buying and institutional funds are adding at the same time.
Signal changes of the day
All band and score changes of a trading day per signal variant — groupable by variant, segment and direction.
Band change monitor
Which stocks are close to moving into a different score band? Distance to the next threshold, calculated daily.
Value opportunity
Stocks that look cheap on fundamentals and that insiders or funds are buying at the same time.
Score history
How has a stock's score developed over time — and what followed the most recent change?
Investment strategies based on published methods
Six selection methods documented in the literature, applied to current fundamentals from SEC XBRL. This is our own implementation of the respective published criteria; there is no business relationship with the people named.
CANSLIM (O'Neil)
Growth in earnings and revenue, relative strength and institutional demand — the framework of William O'Neil.
Minervini trend template
Conditions on moving averages, position within the 52-week range and relative strength that a stock must meet according to Mark Minervini.
Peter Lynch — PEG approach
Setting growth in relation to valuation: what Lynch described as growth at a reasonable price (GARP).
Piotroski F-Score
Nine financial-statement metrics for financial soundness — the classic test for quality behind a cheap valuation.
Quality momentum
Quality companies that also show an established uptrend.
van Vliet low volatility
The observation examined in the finance literature that low-volatility stocks did not perform worse over the long run (Blitz/van Vliet 2007). Past performance is not a reliable indicator of future results.
Politics, calendars and market environment
Who reports when, who pays a dividend — and what are elected representatives actually trading?
US Congress stock trading
Representatives and senators must disclose their securities transactions. We analyze these filings systematically.
Congressional trading in detail
In-depth analysis: which representatives stand out in their trading, in which sectors and with what lead time?
Earnings calendar
Who reports next — with EPS, revenue and the history of past reporting dates.
Dividend calendar
Ex-date, record date and pay date for US stocks, including history and dividend growth.
IPO calendar
Planned US IPOs from the S-1 pipeline and recently priced offerings.
Shareholder meeting calendar
Upcoming shareholder meetings with agenda and ballot proposals from proxy statements.
Market overview and timing
The big picture: where does the market stand overall, and which patterns repeat?
Market heatmap
The whole market at a glance — colored by sector and market capitalization.
Market sentiment
Volatility, yield curve, credit spreads and financial conditions, condensed into a fear/greed barometer for the US and Europe.
Market cycle radar
Which phase of the cycle are we in? Macro indicators such as the yield curve and the credit gap, seen together.
Dip radar
Stocks that regularly oscillate around their trend line — sorted by how far below it they currently sit.
Cointegrated pairs
Pairs of stocks that are statistically cointegrated — a selection criterion, not a statement about future price movements.
Individual stocks and issuers
From the overview down to the detail — every data point on a stock in one place.
Stock overview
The entire covered universe with score, sector, market capitalization and key metrics — filterable.
Stock detail page
All data on one stock: insider trades, fund holdings, fundamentals from XBRL, signal history and price.
International issuers
Directory of foreign issuers with country, source and most recent fiscal year — the fundamentals are on the respective detail page.
How Inside-Filings works
- Data sourcing: Every day we read official SEC EDGAR and SEC XBRL filings — straight from the US securities regulator. Our analysis runs on the original submissions, not on pre-packaged third-party scores; price data is sourced additionally from a market data provider.
- Signal calculation: Every filing feeds into one of ten weighted signal components (including insider purchases, institutional holdings, activist pressure, momentum, fundamentals, fails to deliver and beta).
- Composite score: The components feed into an overall score that expresses strength on a scale from “very strong” to “very weak” — supplemented by a risk penalty from 8-K events such as restatements or the departure of key personnel.
- Watchlist & alerts: You are notified by email as soon as a signal changes on one of the stocks you follow — what you make of it is up to you.
One account. Start free.
As an anonymous visitor you see a preview of all features. Registration takes under a minute and costs nothing; once you confirm the sign-up email you are ready to go. Watchlist, paper trading account and signal notifications are available immediately. Excel export and the advanced filters are part of the paid subscription; API access is also subject to a fee. Inside-Filings is an information service and not investment advice — all analyses are based on mandatory public disclosures and can be traced back to their source. Trading in financial instruments carries risks up to and including the total loss of the capital invested; you are solely responsible for your own investment decisions.
For companies
SEC data as a service, too: one-off analyses, ongoing data delivery or an API integration for your company.
Legal notices
Inside-Filings processes publicly available mandatory disclosures and regulatory data from the US Securities and Exchange Commission (SEC) as well as other supervisory bodies and registers (including EDINET/Japan, Companies House/UK, BaFin and the CFTC). The platform is not a financial services provider and not a broker, does not execute securities orders and does not arrange investment transactions. All information presented is provided for informational purposes only and does not constitute investment advice or a recommendation to buy or sell any security or other financial instrument. Trading in financial instruments carries risks up to and including the total loss of the capital invested.