Control moves without the minority
The majority holder exits into a clean deal. The smaller holder remains in the company with a new power center they did not choose.
Tag-along rights give minority shareholders the right to sell on the same terms when a majority holder sells.
Plain definition
Tag-along rights, also called co-sale rights, usually appear in shareholder agreements and investment documents. They protect minority holders when a larger holder sells shares to a third party.
The right matters because control can move even when the company itself is not sold. A founder, majority holder, or investor may sell their stake. Tag-along rights let smaller holders join that transaction instead of being left with a new controlling party.
Tag-along rights protect the minority holder from being stranded after control changes hands.
What goes wrong
The majority holder exits into a clean deal. The smaller holder remains in the company with a new power center they did not choose.
One group receives favorable terms, side protection, or cleaner liquidity. The minority holder discovers that equal ownership language did not mean equal exit treatment.
The tag right exists, but the window to exercise it is short and operationally messy. The right has value only if the process can actually be used.
The buyer wants control, not extra sellers. Without clear tag mechanics, the minority holder becomes a negotiation problem at the edge of the deal.
Founder questions
Bigger picture
Drag-along rights move the other direction: they can force minority holders into an approved sale.
Related structure Right of First RefusalA right of first refusal can sit beside tag rights when shares are transferred.
Related structure When Should You Sell Your Business?Exit timing is where tag rights become real, not theoretical.
Related reading
The decision behind whether the sale terms actually serve the owner.
Related readingHow sale timing changes when control, appetite, and readiness meet.
Related readingThe wider structure behind majority, minority, and control rights.
Bring the document, the decision it is blocking, and the people whose authority is unclear.