Which SEC Filings Common Pass? Form 4 Explained

The SEC filing wey dey common pass no be the 10-K annual report, 10-Q, or 8-K wey dey scroll for screen on earnings day. Na the simple Form 4 be that: one-page notice about insider transaction wey company officer, director, or large shareholder dey file after dem buy or sell stock. This page rank the SEC filings wey dey common pass, straight from EDGAR index. E explain each major form with plain English, then e end with the practical part: how to find company filings and read one.

Which SEC filings dey common pass?

EDGAR, wey be SEC Electronic Data Gathering, Analysis, and Retrieval system, na public database wey every U.S. securities filing dey enter. Our copy of the daily index collect more than 1.2 million filings for the last year, roughly 105,000 every month, across 384 form types from more than 156,000 filers.

SELECT floor(count() / 1e5) / 10 AS filings_millions,
       round(count() / 12 / 1000) AS avg_per_month_k,
       uniqExact(form_type) AS distinct_form_types,
       floor(uniqExact(cik) / 1000) AS distinct_filers_k,
       round(100.0 * countIf(ticker != '') / count(), 1) AS pct_with_ticker,
       round(100.0 * countIf(endsWith(form_type, '/A')) / count(), 1) AS pct_amendments,
       round(100.0 * countIf(form_type = '4/A') / countIf(form_type IN ('4', '4/A')), 1) AS pct_form4_amended
FROM global_markets.stocks_sec_edgar_index
WHERE filing_date >= today() - INTERVAL 12 MONTH AND filing_date < today()

If you sort am by form type, one category pass all the others by far.

SELECT form_type,
       round(100.0 * count() / (SELECT count() FROM global_markets.stocks_sec_edgar_index WHERE filing_date >= today() - INTERVAL 12 MONTH AND filing_date < today()), 2) AS pct_of_filings
FROM global_markets.stocks_sec_edgar_index
WHERE filing_date >= today() - INTERVAL 12 MONTH AND filing_date < today()
GROUP BY form_type
ORDER BY count() DESC
LIMIT 12

Form 4, wey be insider-transaction report, make up 27.78% of every filing for the index, more than one out of four. The next biggest single form, the 424B2 prospectus supplement, dey at 15.07%. From there, the table dey reduce through 144, 8-K, NPORT-P, 3 and plenty smaller categories. The reports wey dey drive financial headlines, the 10-K and 10-Q, dey far down this list. Na the first surprise wey the data show you.

Why Form 4 na the SEC filing wey dey common pass?

Person go file Form 4 anytime corporate insider, officer, director, or shareholder wey own more than 10% of company buy or sell the company stock. The rule give dem about two business days after the trade, and big company fit get dozens of insiders wey dey trade throughout the year. Each transaction na separate filing, so the number dey rise faster than any periodic report fit. Na this raw feed dey behind every insider trading headline.

Two other forms complete the insider filings. Form 3 na the first statement wey insider file when e take the role or cross the 10% line. Form 5 na yearly clean-up for small transactions wey no need prompt Form 4 reporting. Form 3 dey among the bigger categories for the leaderboard above; the ongoing Form 4 pass both of dem by far.

Which SEC filings investors dey really read?

The filings wey dey fill financial media na only small part of the total volume. Here be eight forms wey every investor don hear about, plus their rank among all 384 form types.

SELECT form_type, filings, overall_rank, filings_display
FROM (
    SELECT form_type,
           count() AS filings,
           reverse(arrayStringConcat(extractAll(reverse(toString(count())), '[0-9]{1,3}'), ',')) AS filings_display,
           row_number() OVER (ORDER BY count() DESC, form_type) AS overall_rank
    FROM global_markets.stocks_sec_edgar_index
    WHERE filing_date >= today() - INTERVAL 12 MONTH AND filing_date < today()
    GROUP BY form_type
)
WHERE form_type IN ('4', '8-K', '13F-HR', '10-Q', 'DEFA14A', '10-K', 'DEF 14A', 'S-1')
ORDER BY filings DESC

Form 4 get 348,575 filings, rank 1. The 8-K, na notice about material event, like acquisition, executive departure, bankruptcy, or earnings release. E reach 63,725 for rank 4. The 13F-HR, na quarterly holdings report wey every manager wey dey run more than roughly $100 million must file. E record 34,302. The snapshots fit come as late as 45 days after quarter close. Na disclosure lag similar to why published short interest dey always about two weeks old. The documents wey retail investors dey study pass trail all of dem: the 10-Q at 16,588, while the 10-K get only 6,055, rank 26 of 384. The S-1 na the rarest among the eight. E usually be the registration statement for going public: 1,083. Na this paperwork dey support a newly listed company first weeks of trading.

DEF 14A proxy statement dey fit where?

The DEF 14A, wey be the final proxy statement, na the booklet for annual meeting. E get ballot for directors and auditor, say-on-pay vote, plus executive-compensation tables wey dey behind every headline like “CEO earn X times the median employee.” Na one of the company documents wey people dey read pass. But the index carry only 4,948 for the last year, for rank 30. The calculation match the 10-K own: one every year for each operating company.

The noisier relative dey beside am. DEFA14A, “additional soliciting material”, cover anything else wey dem send shareholders about that vote: decks, letters wey dey ask people to vote yes, and proxy-advisor rebuttals. Contested vote dey produce plenty of them. The index show 6,657 DEFA14As against 4,948 DEF 14As. Two other relatives complete the family: PRE 14A, the preliminary version wey company file for SEC staff review, and DFAN14A, the same material wey activist file when e dey run rival slate.

Which other SEC forms dey file pass?

Four categories dey cover most of the remaining top spots:

• 424B2 / 424B3, prospectus supplements. When issuer wey register shelf dey sell tranche, e dey file one with the final terms. Debt and structured-note programs fit generate plenty of them.
• Form 144, selling restricted stock. Na insider notice of proposed sale of restricted or control shares. E no mean say the sale don complete.
• Schedule 13D / 13G, crossing 5%. Activists dey use the long-form 13D. Passive holders like index funds dey use the short-form 13G.
• NPORT-P, Form D, 6-K. Fund portfolios; private Regulation D fundraising; and news from foreign issuer.

EDGAR big pass the few thousand names wey stock-picker dey follow. Only 46.3% of filings for the past year even get ticker. The field dey often blank, even when the filing concern public companies. Much of the rest come from funds, private companies and advisers wey no get public symbol.

Wetin be amended SEC filing (di /A forms)?

A form wey e end with /A na amendment, meaning dem update filing wey don already dey for record, no be new event. A 10-K/A dey restate annual report; an 8-K/A dey add statements wey deal announcement promise say e go later provide; a 4/A dey correct share count wey person enter wrongly. Dem matter when you dey count filings: 7.6% of di index for di past year na /A form.

SELECT form_type AS amended_form,
       count() AS amendments,
       reverse(arrayStringConcat(extractAll(reverse(toString(count())), '[0-9]{1,3}'), ',')) AS amendments_display,
       round(100.0 * count() / (SELECT countIf(endsWith(form_type, '/A')) FROM global_markets.stocks_sec_edgar_index WHERE filing_date >= today() - INTERVAL 12 MONTH AND filing_date < today()), 1) AS pct_of_amendments
FROM global_markets.stocks_sec_edgar_index
WHERE filing_date >= today() - INTERVAL 12 MONTH AND filing_date < today()
  AND endsWith(form_type, '/A')
GROUP BY form_type
ORDER BY amendments DESC
LIMIT 8

Dis no be table of mistakes. Di biggest entry, SCHEDULE 13G/A, 34,059 filings, 35.5% of all amendments, na normal position maintenance: passive 5%-plus holder dey update 13G as di stake dey change. Di next one, D/A with 22,284 filings and 23.2%, na di same thing for private placements. Real corrections na smaller part: na only 1.5% of insider Form 4s ever get 4/A. Treat /A as “dis na di current version,” and check di date before you trust number from di original.

SEC filings dey increase as time dey go?

One 12-month snapshot no fit show direction. Na wetin happen for the last twelve complete quarters be this: total filings, Form 4s, and the share wey Form 4 take for the whole.

SELECT formatDateTime(toStartOfQuarter(filing_date), '%Y-Q') || toString(toQuarter(filing_date)) AS quarter,
       round(count() / 1000.0, 1) AS all_filings_k,
       round(countIf(form_type = '4') / 1000.0, 1) AS form4_filings_k,
       reverse(arrayStringConcat(extractAll(reverse(toString(count())), '[0-9]{1,3}'), ',')) AS all_filings_display,
       reverse(arrayStringConcat(extractAll(reverse(toString(countIf(form_type = '4'))), '[0-9]{1,3}'), ',')) AS form4_filings_display,
       round(100.0 * countIf(form_type = '4') / count(), 1) AS form4_pct_of_filings
FROM global_markets.stocks_sec_edgar_index
WHERE filing_date >= toStartOfQuarter(today() - INTERVAL 36 MONTH)
  AND filing_date < toStartOfQuarter(today())
GROUP BY quarter, toStartOfQuarter(filing_date)
ORDER BY toStartOfQuarter(filing_date)

Two ways to read am. First, the mix dey stable: Form 4 be 27.9% of all filings for 2023-Q3 and 29.9% for 2026-Q2, wey be the newest complete quarter. E dey move around, but e no dey leave that range upward. Second, the movement get seasonal pattern: January-to-March quarters dey the top of the range every year wey the panel cover. Na that period annual grants dey vest, proxies dey go out, and 10-K season dey peak. Total volume follow the same calendar, from 245,391 filings for 2023-Q3 reach 336,460 for 2026-Q2. Form 4s alone make up 100,769 of that last quarter. Any insider-activity screen dey read seasonal series: quiet August fit first be calendar effect before e become signal.

How to find a specific company's SEC filings

Every filer get CIK, Central Index Key, wey be the permanent number SEC dey use identify am. Tickers fit change and dem fit reuse am; CIK no dey change, na why the index key dey depend on am. Apple's own na 0000320193. Type ticker or company name for EDGAR search at sec.gov/edgar/search to get the CIK, then browse that filer's history. One household name's year for EDGAR:

SELECT form_type,
       count() AS filings,
       any(cik) AS issuer_cik,
       max(filing_date) AS latest_filing,
       concat(monthName(max(filing_date)), ' ', toString(toDayOfMonth(max(filing_date))), ', ', toString(toYear(max(filing_date)))) AS latest_filing_readable,
       argMax(accession_number, (filing_date, accession_number)) AS latest_accession
FROM global_markets.stocks_sec_edgar_index
WHERE ticker = 'AAPL'
  AND filing_date >= today() - INTERVAL 12 MONTH AND filing_date < today()
  AND form_type IN ('4', '144', '8-K', '10-Q', '10-K', 'DEF 14A')
GROUP BY form_type
ORDER BY multiIf(form_type = '4', 1, form_type = '144', 2, form_type = '8-K', 3, form_type = '10-Q', 4, form_type = '10-K', 5, 6)

The pattern for one big operating company dey clear: 1 10-K, 3 10-Qs and 1 DEF 14A proxy for the year, one for every required period, together with 43 Form 4s and 6 8-Ks, wey dey show whenever event happen. Every row get accession number for the newest filing of that type: Apple's latest Form 4, filed September 3, 2026, na accession 0001140361-26-035636, the document's permanent address for EDGAR.

How you go read Form 4

If you open one, you go see header (the insider name and relationship: director, officer, 10% owner) and two tables: Table I for ordinary shares, Table II for derivatives. Each row na one transaction, and the column wey carries the meaning na the single-letter transaction code.

• P, open-market purchase. The insider buy with im own money. Na the code insider-buying trackers dey look for.
• S, open-market sale. Na cash sale, and many times dem schedule am ahead under Rule 10b5-1 plan. Footnote usually dey show this.
• A, award or grant. Dem give shares as compensation. E no mean say person decide to buy.
• M, exercise of a derivative. Options or units change into shares. Many times dem pair am same day with F or S.
• F, shares withheld for taxes. E fit look like sale for raw feed, but na withholding method for vesting grant.
• G, gift. Na transfer wey no get cash consideration.

The rest of the row show share count, price, and the holding afterwards. The last column tell whether the headline sale na the whole position or just rounding error. Filter feed to code P, and the volume wey remain go reduce to something person fit read. The index get im own quirks too; see note about EDGAR index gap.

FAQ

SEC filing wey most people dey file na which one?

If na volume, na Form 4. Na insider-transaction report wey officer, director or owner of 10%-plus dey file after dem trade company stock. For the past year, e make up 27.78% of every filing for the EDGAR index.

10-K na the SEC filing wey most people dey file?

No. E dey among the filings wey people know well, but dem no dey file am often. Public company dey file am once every year. The index carry 6,055 of dem for the past year, compared with 348,575 insider Form 4s.

DEF 14A proxy statement na wetin?

Na the booklet wey company dey send before its annual meeting. E get the director ballot, auditor ratification, say-on-pay vote and executive-pay tables. Each operating company dey file one every year. The index show 4,948 for the past year, rank 30 among all form types.

Transaction code for Form 4 mean wetin?

Na the single letter wey show wetin happen: P na open-market purchase, S na sale, A na compensation award, M na option or unit exercise, F na shares wey dem withhold for taxes on a vesting grant, G na gift. Codes A, M and F na compensation mechanics. Dem no mean say person decide to buy or sell at that day’s price.

Every panel wey dey above come with the SQL wey generate am. Open one and audit the count. If you wan rank filings for any company or form type with plain English, ask for am on the Strasmore terminal.