PSC04 is the filing code usually seen when the details of an individual person with significant control are changed at Companies House. In practical terms, it points to an amendment on an existing individual PSC record rather than a new PSC being added or removed.
That matters because a PSC detail amendment can change the control record your team is working from even when the underlying PSC relationship still exists. If your workflow depends on a current ownership view, PSC04 is not a filing to ignore.
What does PSC04 mean?
PSC04 means a filing was made to change the details of an existing individual person with significant control at Companies House. In plain language, part of the public PSC record for that person has been updated.
That makes PSC04 different from PSC01 or PSC07. The PSC relationship may still exist, but the details attached to that individual entry have changed.
What PSC04 does not tell you from the code alone
PSC04 tells you that an individual PSC detail changed, but not exactly which field changed from the code label alone. You still need the live PSC section and surrounding filings to understand the precise operational meaning.
That matters because some PSC detail amendments are routine, while others may change how your team identifies or explains the current control position.
Why PSC04 matters for ownership monitoring
PSC detail changes matter because teams often work from a cached control view. PSC04 is the moment to confirm the live individual PSC record still matches the ownership picture your workflow, reporting, or risk review is relying on.
It is also worth reading next to confirmation-statement, director, or other PSC filings because detail amendments can sit inside a broader governance update.
What to check after you see PSC04
The practical move after a PSC04 is to inspect the current PSC record and decide whether the amendment changes the ownership view your team is working from.
Open the current PSC section Check the live public entry so you can see the current individual PSC details after the amendment.
Compare against your previous ownership view If your team tracks control details manually, make sure those internal records are not now stale.
Read nearby filings Look for PSC01, PSC07, director, or confirmation-statement filings around the same period that may explain the wider context.
Decide whether downstream records need updating If the amendment changes how the PSC should be represented in workflow or reporting, someone should refresh that record deliberately.
Recent real-company examples where PSC04 shows up on the public record
These are drawn from the current seeded public-company slice. They turn the filing code into something more useful than a glossary term by showing the code on a real company page alongside the current verification read and company status.
Sampled from 40 public company pages and looking back up to 365 days for recent PSC04 filings.
PATRICK DEAN LIMITED Change of details for Mr James Fitzroy Dean as a person with significant control on 2025-12-09
Form PSC04. Filed on 2025-12-11.
E.S.TRIGGOL LIMITED Change of details for Mr Simon James Triggol as a person with significant control on 2026-04-02
Form PSC04. Filed on 2026-04-10.
WM. ARMSTRONG (LONGTOWN) LIMITED Change of details for Mr Geoffrey William Armstrong as a person with significant control on 2025-12-18
Form PSC04. Filed on 2025-12-20.
Check the current company record instead of stopping at the filing code.
Entity Watch helps teams review the live company position around filings, deadlines, officers, PSCs, and the next operational follow-up without rebuilding the same manual review every time a new code lands.
Common questions
Does PSC04 mean a new PSC was added?
No. PSC04 is a change-of-details filing for an existing individual person with significant control.
Does PSC04 mean a PSC ceased?
No. PSC04 points to an amendment on an existing individual PSC record rather than the end of that PSC position.
Does PSC04 tell me exactly what detail changed?
Not from the code alone. It tells you an individual PSC detail changed, but you need the live record to see the exact amendment.
Can Entity Watch file PSC04 for me?
No. Entity Watch is not a filing agent and does not submit Companies House forms for you. It is a monitoring and workflow layer that helps teams understand what changed, what deadline is next, and where to follow up.