Sarah Mitchell
Education Editor
Investment Education Editor at 13F Insight. Breaks down complex institutional data into actionable insights for individual investors.
A note from Sarah
Hi, I'm Sarah. I spent four years at Vanguard's Investor Education team, where my whole job was making 401(k) statements feel less like tax forms and more like something a person could actually understand.
I'm here at 13F Insight to do the same thing for institutional data. If you've ever read a headline like "Berkshire Bought Apple" and thought "okay but what does that actually mean for me," that's the gap I want to close.
I'll never assume you know what a CUSIP is. I'll always tell you why a number matters before I give you the number. And if a guide of mine ever leaves you more confused than you started, that's on me — let me know and I'll rewrite it.
Articles by Sarah Mitchell (326)
- Learn
How to Check Insider Sales Against Beneficial Ownership
Form 4 sale rows can mislead unless investors check Table I, Table II and 13D/G ownership records.
- Learn
How to Avoid Overreading Mega-Filer 13F Positions
Mega-filer 13Fs are structure maps first and stock-picking signals second.
- Learn
How to Read Active Holder Count After a Stock News Event
Active holder count helps separate durable institutional sponsorship from passive ownership after a headline.
- Learn
How to Use Share Counts After a Stock Headline
A practical guide to reading ownership data without confusing passive exposure, price moves, or mechanical insider transactions for conviction.
- Learn
How to Check Form 4 Table I Against Table II
A practical guide to reading ownership data without confusing passive exposure, price moves, or mechanical insider transactions for conviction.
- Learn
How to Read Market News With Holder Depth
A practical guide to reading ownership data without confusing passive exposure, price moves, or mechanical insider transactions for conviction.
- Learn
How to Separate Passive and Active 13F Holders
A practical guide to reading ownership data without confusing passive exposure, price moves, or mechanical insider transactions for conviction.
- Learn
How to Build a Next-Filing Checklist After Oil Price News
A practical framework for reading Oil Price News Checklist with 13F Insight data.
- Learn
How to Read Three-Position Foundation 13F Portfolios
A practical framework for reading Foundation 13F Portfolios with 13F Insight data.
- Learn
How to Use 13F AUM Drops Without Calling Them Redemptions
A practical framework for reading 13F AUM Drops with 13F Insight data.
- Learn
How to Check Active vs Passive Ownership Before Copying a 13F
A practical framework for reading Active vs Passive Ownership with 13F Insight data.
- Learn
How to Read Mega-Filer Holder Depth After Market News
A practical framework for reading Market News Holder Depth with 13F Insight data.
- Learn
How to Compare Capital Group 13F Filings Without Double Counting
Capital Group-related filers can hold similar mega-cap names, but each 13F still needs separate share-count and weight analysis.
- Learn
How to Use Holder Depth Around Retail Sales Events
Retail promotions are consumer events. Holder depth tells investors whether the stock has enough active ownership for the event to matter.
- Learn
How to Read Form 4 Table II After Founder Stock Sales
Founder sales can look like exits until Table II shows retained Class B, option or trust exposure.
- Learn
How to Use 13F Holder Depth After CEO Succession News
CEO succession headlines should be checked against holder depth, passive ownership, and the next 13F share-count response.
- Learn
How to Use 13D/G Context When Reading Insider Selling
Insider selling reads differently when a stock also has recent 13D/G filings or concentrated beneficial ownership.
- Learn
How to Separate Index Scale From Active Conviction in Mega-Cap Stocks
Mega-cap ownership maps mix passive scale and active decisions. The distinction changes how investors should read holder lists.
- Learn
How to Read Current-Quarter 13F Filings Before the Full Wave
Early current-quarter filings can be useful, but investors need to separate fresh report dates from crowded prior-quarter research.
- Learn
How to Compare AI Platform Holdings Across 13F Managers
NVDA, MSFT, AAPL, AVGO, AMZN, and GOOGL often appear together, but weights and share-count changes carry the signal.