BUSINESS LAW28.10.2026 · 6 MIN READ · 4 COMMENTS

BEFORE YOU SIGN A shareholder AGREEMENT

The six clauses that decide who controls the company when founders stop agreeing.

WRITTEN BYDaniel Mercer, Partner

Founders reviewing a shareholder agreement at a meeting table

A shareholder agreement is the document nobody reads until the day it decides everything. Read it now — while everyone is still friends.

01 — WHY IT MATTERS

THE COMPANY’S ARTICLES ARE NOT ENOUGH

Your articles of association are public and mostly standard. They tell the outside world how the company is run. The shareholder agreement is private, and it tells the owners how they will behave towards each other — who decides, who can leave, and what happens to their shares if they do.

Most founders sign one in the first weeks, in a hurry, from a template. It sits in a drawer for years. Then an investor arrives, a co-founder wants out, or two directors stop speaking — and every word suddenly matters.

02 — THE SIX CLAUSES

SIX CLAUSES THAT DECIDE CONTROL

Everything else in the agreement is housekeeping. These six provisions decide who holds the power when it counts.

  1. RESERVED MATTERSThe list of decisions that need every shareholder — or a supermajority — to agree.
  2. DEADLOCKWhat happens when two equal owners cannot agree: mediation, a casting vote, or a buy-out.
  3. LEAVER PROVISIONSGood leaver, bad leaver — and what each one is paid for their shares.
  4. PRE-EMPTIONWho gets first refusal when shares are issued or sold, and on what timetable.
  5. DRAG & TAGWhether a majority can force a sale — and whether a minority can join one.
  6. RESTRICTIVE COVENANTSHow long, and how far, a departing shareholder is kept from competing.

The best time to agree how you will disagree is before you ever have to.

— DANIEL MERCER, PARTNER

03 — BEFORE YOU SIGN

FIVE QUESTIONS TO ASK FIRST

Run through these with your co-founders before anyone picks up a pen. If you cannot answer one of them, the agreement probably does not either.

CHECKLIST · TICK AS YOU GO0 / 5

04 — WHEN TO CALL US

GET IT READ BEFORE IT MATTERS

A review of an existing agreement takes us about a week and is almost always a fixed fee. We will tell you plainly which clauses protect you, which ones do not, and what is worth renegotiating while relations are still good.

FREE · 30 MINUTES · WITH A PARTNERHAVE YOUR AGREEMENT reviewed.

Book a call

GENERAL INFORMATION, NOT LEGAL ADVICE. LAST REVIEWED 10/2026.

05 / Discussion

04 comments.

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  1. Anna K.29.10.2026

    Really useful. We signed ours from a template three years ago and I had no idea what a deadlock clause even was. Booking a review.

  2. Daniel MercerAUTHOR29.10.2026

    ↳ REPLY TO ANNA K.

    Thank you, Anna. Templates are a fine start — the problem is usually what they leave out, not what they say. Happy to take a look.

  3. Marcus T.30.10.2026

    Would be great to see a follow-up on drag-along rights when a minority investor comes in. That was the clause that caught us out.

  4. Priya S.31.10.2026

    Printed the checklist and went through it with my co-founder over coffee. Two of the five we could not answer. Eye-opening.

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