Ownership filings
Schedule 13D versus 13G
A factual guide to Schedule 13D and 13G beneficial ownership reports for holders with more than 5% stakes.
What these schedules report
Schedule 13D and Schedule 13G are SEC beneficial ownership filings generally associated with holders that cross a 5% ownership threshold in a public company equity security.
Schedule 13D is commonly associated with more active or potentially influential ownership, while Schedule 13G is a shorter form used by eligible passive or exempt holders.
What to compare
Read the filer, issuer, percentage owned, filing date, amendment history, and purpose-of-transaction language when present. Amendments can matter because positions and intentions can change.
Aerarium Research ownership pages emphasize source timing because ownership disclosures are snapshots rather than real-time holder feeds.
What not to infer
A 13D or 13G filing does not tell readers whether to copy a holder, how a company will respond, or what the holder currently owns after the filing date.
Treat the filing as public ownership context and compare it with 13F, insider, financial, and research information.
Common questions
Are 13D and 13G filings the same as 13F filings?
No. 13D and 13G filings relate to beneficial ownership thresholds, while Form 13F is a quarterly institutional holdings report.
Why do amendments matter?
Amendments can update ownership percentages, holdings, or stated context after an original filing.
Does 13G always mean unimportant?
No. It is a different reporting form for eligible filers, not a measure of whether the stake is economically important.