COSTCO WHOLESALE CORP /NEW (COST) made 1,000 filings in its most recent EDGAR window (2016-10-14 to 2026-10-07) — about 99 routine filings per year once routine debt and shelf offerings are excluded. 603 of the filings are insider forms (Form 4: 563, Form 3: 20, Form 5: 20), i.e. 60.3% of routine filings.
Of the 1,000 filings in this window, 13 (1.3%) are routine debt or shelf offerings (form 424B*, FWP, S-3*), which are excluded from the routine rate below because large issuers generate them continuously.
Form type
Filings in window
4
563
8-K
117
144
66
4/A
57
10-Q
30
3
20
5
20
SC 13G/A
16
DEFA14A
11
10-K
10
11-K
10
SD
10
DEF 14A
10
PX14A6G
8
Activity over the window
Metric
Value
Window covered
2016-10-14 → 2026-10-07
Span
9.98 years
All filings in window
1,000
Routine filings (offerings excluded)
987
Routine filings per year
99
Insider forms as share of routine filings
60.3%
Routine debt/shelf offering share
1.3%
Former names on record: COSTCO COMPANIES INC, PRICE/COSTCO INC