This walkthrough uses a fictional large-cap consumer issuer, “Company ABC,” to show how three public disclosure types answer three different questions. Dollar figures and dates are illustrative; the logic mirrors real research notes.
“Over the next two to four quarters, is institutional exposure to ABC rising in share count—not only because of price—and does insider activity look routine or unusual relative to the past two years?”
A hypothetical 13F line shows Manager XYZ increased ABC shares by 8% quarter-over-quarter while the S&P 500 weight in the same book fell. Market value rose 12%, but share count rose 8%—so part of the story is accumulation, not only appreciation.
Two weeks after quarter end, ABC’s CFO files Form 4 with code “S” for 15,000 shares under a disclosed 10b5-1 plan. A director files code “P” for 2,000 shares in the open market.
A newsletter claims ABC will outperform the sector ETF over 90 trading days. Before checking any leaderboard, write: “Direction vs. XLY, horizon = 90 trading days from publish date T, binary hit/miss.”
13F: gradual institutional add in shares. Insiders: mixed; planned sale dominates headline but open-market buy is small. Forecast: unverified until horizon and benchmark are fixed. Overall: moderate institutional support; insider file does not confirm bearish narrative; pundit claim parked until scored.
For Company ABC, keep six fields on one page: research question; 13F share-count delta with as-of and filing dates; Form 4 table (filer, role, code, size, plan flag); forecast claim sentence; synthesis paragraph; falsifiers. If a field is empty, say “not yet observed” rather than inventing color.
Empty fields are progress. Tip culture hates blanks; education needs them. Blanks tell you which filing family you still need to open.
Ending A: next 13F shows flat share counts—institutional accumulation story weakens. Ending B: clustered non-plan open-market sales appear—insider context darkens without proving a crash. Ending C: the pundit’s 90-day claim misses versus XLY—remove that source from the thesis weight. Practice writing endings before prices arrive.
The point of alternate endings is process rehearsal, not prediction theater. You are training the muscle that updates notes when filings change.
After this walkthrough, read the workflow guide for combining disclosures, the Form 4 codes guide for code literacy, and the forecast journal template to capture media claims cleanly. Methodology explains how InsightMeter handles data and scoring at a high level.
Assign invented but consistent dates: quarter-end 31 December; 13F accepted mid-February; Form 4 transactions in early February with filings two business days later; newsletter claim published 1 March with a 90-trading-day horizon. Writing the timeline prevents the mashup error even inside a teaching story.
Have students highlight which facts were knowable on which dates. The exercise builds lag muscles faster than another definition list.
Prompt 1: rewrite the newsletter claim three ways with different benchmarks and explain how hit/miss could change. Prompt 2: replace the CFO plan sale with a non-plan sale of equal size and rewrite the insider paragraph. Prompt 3: invent an amendment that cuts the 13F share count and update synthesis.
Good answers show process changes, not price predictions. If a student ends with “so buy ABC,” the lesson failed—restart from falsifiers.
Good notes separate findings by filing type, state lags explicitly, and list falsifiers. Copy this structure for real issuers using our workflow guide.
Combine 13F, Insider, and Forecast Signals · Building a personal forecast journal
The fictional ABC note is a scaffold. Replace ABC with a real issuer only after you can keep timestamps separate without help. If mashups return, return to this walkthrough.
Teachers and study groups may copy the binder fields freely for non-commercial education. Do not present the fictional numbers as real market facts.
Next practice: complete one real binder using only EDGAR primary sources and our glossary for vocabulary. Then decide whether any optional dashboard view is even necessary for your question.
Learn by topic: Form 4 / insider literacy · Form 8-K & fundamentals · Form D / exempt offerings · 13F / institutional snapshots