SEC form glossary

SEC form types, explained with real filings.

EDGAR filings are labeled by form type. The ones most developers need are the 10-K annual report, the 10-Q quarterly report, the 8-K current report, Form 4 insider transactions, 13F-HR institutional holdings and Form D private offerings. Each page below says who files the form, when it is due and what is inside it.

Observed counts: filings recorded by our EDGAR collector between 2026-04-30 and 2026-11-09 (10,000 filings, a sample, not all of EDGAR).
Form	What it is	Due	Observed
10-K	Annual report	60 days after fiscal year end for large accelerated filers, 75 days for accelerated filers and 90 days for all other filers	8
10-Q	Quarterly report	40 days after quarter end for large accelerated and accelerated filers, 45 days for all other filers	519
8-K	Current report	Generally within four business days after the triggering event	599
3	Initial statement of beneficial ownership	Within 10 days after becoming an insider (and by the effective date of registration for an IPO)	163
4	Statement of changes in beneficial ownership	Before the end of the second business day after the transaction date	1,521
5	Annual statement of changes in beneficial ownership	Within 45 days after the issuer’s fiscal year end	2
144	Notice of proposed sale of restricted or control securities	Transmitted to the SEC concurrently with placing the sell order or executing the sale	458
13F-HR	Institutional investment manager holdings report	Within 45 days after the end of each calendar quarter	804
SCHEDULE 13D	Beneficial ownership report (active)	Within five business days after crossing 5% (shortened from 10 calendar days by the SEC’s 2023 amendments)	105
SCHEDULE 13G	Beneficial ownership report (passive)	Depends on filer type	869
S-1	Registration statement	No filing deadline	21
S-3	Short-form registration statement	No filing deadline	32
424B2	Prospectus filed under Rule 424(b)	Generally no later than the second business day after pricing or first use, under Rule 424(b)	1,971
FWP	Free writing prospectus	Generally filed on or before the date of first use	323
DEF 14A	Definitive proxy statement	Must be filed no later than the date it is first sent to shareholders	63
6-K	Report of foreign private issuer	Promptly after the information is made public in the home country or to security holders	246
20-F	Annual report of foreign private issuer	Within four months after fiscal year end	11
40-F	Annual report of eligible Canadian issuer	Due on the same day the annual disclosure is due in Canada	1
D	Notice of exempt offering of securities	Within 15 calendar days after the first sale of securities in the offering	619
NPORT-P	Monthly portfolio investments report (public)	Set by Rule 30b1-9 and the form instructions; check the current compliance dates, which the SEC amended in 2024	202
N-CSR	Certified shareholder report of registered management investment company	Within 10 days after the shareholder report is transmitted to shareholders	97
497K	Summary prospectus for mutual funds	Filed under Rule 497 when first used	233
11-K	Annual report of employee stock purchase, savings and similar plans	Within 180 days after the plan’s fiscal year end, or as an amendment to the employer’s 10-K for certain plans	—
S-8	Registration of securities for employee benefit plans	No filing deadline; effective automatically on filing	25

Definitions follow the SEC’s published form instructions and rules, linked on each page. Observed counts come from our own record of EDGAR’s latest-filings feed and sampled daily indexes; they show relative volume, not the total filed with the SEC.

Related references

Plain-text version for agents and LLMs: /sec-forms.md

Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.