INDUSTRY FIELD GUIDE
Investment banking filing amendments for AI review
An amended filing may change one section while leaving the rest of an earlier filing relevant.
NAICS 523150 · Investment Banking and Securities Intermediation
An amended filing may change one section while leaving the rest of an earlier filing relevant. SEC’s EDGAR documentation describes how filings and structured facts can be retrieved. An investment banking team can test whether a model cites the right source and understands which document supersedes a statement. SEC EDGAR API documentation
Create a practice offering packet with an original filing, one amendment, and a memo dated before the amendment. Give the amendment an explicit scope and a date. Ask which description was available for the earlier memo and which statement changes afterward. Grade issuer and document identity, version, cited text, and treatment of an unaffected section separately.
Keep confidential client documents, nonpublic transaction data, insider information, third-party research, and identifiers outside the sample. Use independently written materials or public filings with terms and embedded rights checked. The benchmark does not offer investment advice.
Describe a filing version test
Original Fiund exercise
A scoped amendment changes one section while preserving the earlier memo's information set
An imaginary issuer has an original offering-description fixture. None of the text comes from a real filing, transaction or confidential research document.
| Record | Source | What it records |
|---|---|---|
| FA1 | Original packet F1 | Issuer I-A, published day 2. Section USE says purpose X; section CONTACT names desk D. |
| FA2 | Amendment F1A | Published day 8 for I-A. Explicitly replaces section USE with purpose Y; states section CONTACT unchanged. |
| FA3 | Memo and unrelated packet | Memo M dated day 5 cites F1. Issuer I-B has another amendment with a similar title but no I-A link. |
Question for the model
What USE description was available to M, and which sections support a day-9 summary of I-A?
Show the reference answer and checks
FA3 dates M before FA2's publication, so FA1's purpose X was the supplied description available on day 5. For day 9, FA2 replaces USE with Y while explicitly leaving CONTACT unchanged; cite the amendment for USE and F1 for desk D. The I-B amendment belongs to another issuer. Preserve both the historical information set and the amendment's limited scope rather than treating every earlier section as replaced.
- Citing an amendment that had not been published at the memo's date.
- Discarding unaffected sections or mixing amendments from similarly titled issuer packets.
Fields to preserve
- Issuer and document identity
- Prevents cross-issuer source joins.
- Publication date and as-of cutoff
- Defines availability.
- Amended section and preserved section
- Makes supersession scope explicit.
Test another case
Add a day-10 amendment changing CONTACT only. Require USE to remain Y, with a separate source for the new contact.
Use independently written practice materials. Exclude nonpublic transactions, client work, insider information and licensed research; no investment recommendation is made.
Discuss a contribution
Describe the sources you control, the task they could support and what has already been checked. Use the existing-data assessment for an archive or the collection brief for a new recording project. The contributor agreement defines Fiund’s licensing authority and compensation. A guide or fictional exercise does not establish an accepted collection or a sale.