Glossary
73 abbreviations and codes used in the federal regulatory datasets. Each term has its own canonical page with schema.org/DefinedTerm markup.
SEC form types
- 3
- Initial statement of beneficial ownership (insider).
- 4
- Statement of changes in beneficial ownership (insider sales/buys).
- 5
- Annual statement of changes in beneficial ownership.
- 144
- Notice of proposed sale under Rule 144. Filed before an affiliate sells restricted or control stock — predictive insider-sale signal.
- 10-K
- Annual report. Comprehensive overview of business + financials.
- 10-K/A
- Amendment to a 10-K annual report.
- 10-Q
- Quarterly report. Unaudited financials for one quarter.
- 10-Q/A
- Amendment to a 10-Q quarterly report.
- 8-K
- Current report. Material events (mergers, exec changes, earnings, etc.).
- 8-K/A
- Amendment to an 8-K current report.
- 20-F
- Annual report for foreign private issuers (NYSE/Nasdaq-listed non-US).
- 6-K
- Foreign issuer's report of material information.
- 13F-HR
- Quarterly holdings report by institutional investment managers (>$100M).
- 13F-NT
- Notice that holdings were reported on a different 13F filing.
- SCHEDULE 13D
- Beneficial owner of >5%, with intent to influence/control. Activist filing.
- SCHEDULE 13G
- Beneficial owner of >5% with passive intent. Index funds etc.
- DEF 14A
- Definitive proxy statement. Includes exec comp, board votes, governance.
- DEFA14A
- Additional definitive proxy materials.
- S-1
- Registration statement for new public offerings (IPOs).
- S-3
- Simplified registration for seasoned issuers (secondary offerings).
- 424B2
- Prospectus supplement for shelf offerings (filed under Rule 424(b)(2)).
- NPORT-P
- Monthly portfolio holdings report by registered investment companies.
- 144/A
- Amendment to a Form 144 notice.
SEC 8-K item codes
- Item 1.01
- Entry into a Material Definitive Agreement — often M&A, financing, or partnership.
- Item 1.02
- Termination of a Material Definitive Agreement.
- Item 2.01
- Completion of Acquisition or Disposition of Assets.
- Item 2.02
- Results of Operations and Financial Condition (earnings release).
- Item 2.05
- Costs Associated with Exit or Disposal Activities (layoffs, restructuring).
- Item 3.01
- Notice of Delisting or Failure to Satisfy Listing Rule.
- Item 3.02
- Unregistered Sales of Equity Securities (private placement).
- Item 4.01
- Changes in Registrant's Certifying Accountant (auditor change).
- Item 4.02
- Non-Reliance on Previously-Issued Financial Statements (restatement — red flag).
- Item 5.02
- Departure/Election of Directors or Officers; Compensatory Arrangements (executive changes).
- Item 5.07
- Submission of Matters to a Vote of Security Holders (annual-meeting results).
- Item 7.01
- Regulation FD Disclosure (voluntary material information).
- Item 8.01
- Other Events — catch-all material disclosure.
- Item 9.01
- Financial Statements and Exhibits.
SEC insider transaction codes
- P
- Open-market or private purchase (insider buy).
- S
- Open-market or private sale (insider sell).
- A
- Grant, award, or other acquisition (e.g., RSU vesting).
- M
- Exercise/conversion of derivative security (option exercise).
- F
- Payment of tax through share withholding.
- G
- Bona fide gift.
- D
- Disposition to issuer (e.g., share buyback by company).
fda.recall_class
- Class I
- Most serious recall — risk of death or serious injury.
- Class II
- Risk of temporary or reversible adverse health consequences.
- Class III
- Unlikely to cause adverse health consequences (labeling violations etc.).
fda.510k
- 510(k)
- Pre-market notification for medical devices (Substantial Equivalence path).
- Substantially Equivalent
- FDA decision that a device is at least as safe/effective as a predicate.
fda.adverse
- FAERS
- FDA Adverse Event Reporting System (post-marketing drug safety).
- MedDRA
- Medical Dictionary for Regulatory Activities — standardized reaction terms.
weather.severity
- Extreme
- Extraordinary threat to life or property (NWS severity).
- Severe
- Significant threat to life or property (NWS severity).
- Moderate
- Possible threat to life or property (NWS severity).
- Minor
- Minimal or no known threat (NWS severity).
climate.usgs
- MMI
- Modified Mercalli Intensity — instrumental shaking-intensity estimate.
- CDI
- Community Determined Intensity — max user-reported intensity (DYFI).
- DYFI
- USGS 'Did You Feel It?' citizen-science felt-reports system.
- PAGER
- USGS automated impact-alert system (green/yellow/orange/red).
- ml
- Local (Richter) magnitude — small/regional earthquakes.
- mb
- Body-wave magnitude — global short-period seismic body waves.
- mww
- Moment magnitude (W-phase) — preferred for large global events.
register.type
- Rule
- Final rule adopted by an agency, legally binding.
- Proposed Rule
- Rule out for public comment before finalization.
- Notice
- Agency announcement that doesn't have direct legal effect.
- Presidential Document
- Executive Order, Proclamation, or other presidential action.
SEC identifiers
- CIK
- Central Index Key — SEC's permanent identifier for a filer (10-digit zero-padded).
- CUSIP
- Committee on Uniform Securities Identification Procedures — 9-char security ID.
- EIN
- Employer Identification Number — IRS taxpayer ID.
- SIC
- Standard Industrial Classification — 4-digit industry code.
Federal contracting identifiers
- UEI
- Unique Entity Identifier — federal contracting/grants identifier (replaced DUNS).
- NAICS
- North American Industry Classification System — replacement for SIC.
- PSC
- Product Service Code — federal procurement product/service classification.