Methodology
How TrackFilings reads Form 4 activity
TrackFilings is a public research reference for insider purchases reported in SEC Form 4 filings. The product presents reported facts and deterministic context; it does not predict outcomes or recommend an investment.
What a Form 4 contributes
A Form 4 can identify the reporting person and issuer, the reported security transaction, transaction date, filing acceptance date, shares, reported price, ownership context, filing identifiers, and the original SEC source. TrackFilings includes records that satisfy the active Form 4 and purchase eligibility fields in the canonical API contract; it does not infer eligibility from prose or from a missing value. Fields can be missing, amended, or unavailable after validation, so the interface keeps those limitations visible.
An amended filing remains traceable to its SEC filing evidence. The displayed Purchase and its evidence use the active canonical record and preserve filing identifiers and source links; an amendment does not create an extra Purchase merely because it contains additional transaction lines.
TrackFilings uses the economic Purchase as its public unit. The underlying Form 4 may contain several source transaction lines; those lines are evidence for one Purchase and do not independently increase purchase, buyer, ranking, or observation counts.
Dates and observed history
Transaction date describes when the reported transaction occurred. Filing or acceptance date describes when the SEC filing was accepted. They are shown separately because they answer different questions.
“Observed history” means the portion of canonical filing data available to TrackFilings for the relevant page or dated view. It is not a claim of complete all-time insider history. A dated or historical view keeps its as-of boundary so later information is not presented as if it were known earlier. A comparison is unavailable when the observed window cannot establish the required prior context; that is different from a confirmed zero.
Counts and disclosed value
A purchase count counts canonical Purchases. A distinct buyer count counts unique reporting insiders in the same scoped population. One person filing more than one Purchase is one distinct buyer but more than one Purchase.
When every required value is available, TrackFilings shows the complete disclosed value. When the persisted value covers only part of the contributing evidence, it uses At least before the amount. Missing or unavailable values are not converted to zero.
Current observation families
Signal V1 observations are deterministic projections of persisted Purchase and Activity Intelligence data. The active code currently exposes these four families:
- Cluster buying — multiple reporting insiders with Purchases in the persisted multi-insider cluster. The active cluster detector uses an inclusive seven-calendar-day window and at least two distinct insiders; the stored cluster window and buyer count define each displayed scope.
- First observed and known gap — “first observed” means no earlier eligible Purchase exists in the SEC history we cover. A separate known-gap observation requires an eligible prior Purchase and reports the measured days since it; the active gap rule is at least 730 days, and neither is an all-time claim.
- Ownership — an ownership increase supported by persisted ownership fields from the Purchase activity projection; the active rule requires an increase greater than zero.
- Material commitment — a Purchase whose disclosed value meets the fixed TrackFilings materiality baseline of $1,646,936.00. This is a global TrackFilings threshold, not a percentile calculated from the current insider’s history. The rule version attached to the observation is authoritative; no new threshold is introduced here.
These families are evidence patterns, not new SEC classifications. Their rule and schema versions remain attached to each persisted observation, and their limits follow the available source fields, observed history, and value coverage. Signal ranking and discovery use the active persisted ordering; this page does not introduce a separate threshold or ranking rule.
Notable and Latest
Notable uses the current canonical evidence ordering: evidence strength and reason coverage first, followed by the persisted buyer, materiality, ownership, novelty, recency, and completeness fields. Latest orders current observations by their persisted acceptance time, newest first. Neither mode creates a new signal or changes the underlying evidence.
Research context, not endorsement
TrackFilings-derived patterns help a researcher decide what to inspect next. They are not SEC endorsement, SEC ratings, predictions, or investment advice. The original Form 4 source remains the authority for what was reported; use the source link on a Purchase to inspect the filing evidence.