Studies
Each study answers one question about CFO changes with numbers computed from the verified record: a chart, the table of counts with its base sizes, the exact rule, and what the record cannot tell you.
Computed October 23, 2026 from the verified record. Recomputed on every rebuild.
Notice periods
0 days
median gap from 8-K filing to effective date
How much notice do companies give before a CFO change takes effect?
Interim CFOs
22.5%
of verified moves name an interim CFO
How often do companies name an interim CFO, and how long until a permanent one?
Departures and successors
75.2%
of departure filings name a successor in the same filing
When a CFO leaves, is a successor named at the same time?
Where new CFOs come from
37.5%
of appointees with a stated prior role came from a CFO seat elsewhere
What job did new CFOs hold before they were appointed?
Internal or external
49.5%
of established cases were internal promotions
Do companies promote their next CFO from inside or hire from outside?
First-time CFOs
67%
of incoming CFOs: first-time status not established by the filing
How many new CFOs are in the seat for the first time?
CFO titles
41.8%
of titled roster seats read executive vice president and CFO
How do companies title the CFO seat in their 10-K signature blocks?
Filing calendar
Tuesday
is the most common filing day
When do companies file CFO changes?
The record behind every study is on the moves and companies pages, and in the open data. How records are drafted and checked is in the methodology.