Editor’s note: This is general educational information about the twenty per cent control threshold in the New Zealand Takeovers Code. It is not legal or investment advice and does not describe any current transaction. Everything below comes from the official guidance and rulebooks listed at the end.
Analysis: a wall, not a tripwire
The most common misreading of the twenty per cent line is to treat it as a substantial holder disclosure threshold that produces a notice. It does not. It produces a prohibition, and the practical consequence is asymmetric. A holder sitting at nineteen per cent has full freedom to sell and none to buy beyond one more per cent. A holder at fifty one per cent has a slow, rationed path upward under rule 7(e), five per cent a year measured from a twelve-month low. A holder at ninety per cent has lost the ability to do nothing, because Part 7 forces an election.
The measurement rule inside rule 7(e) is the part most likely to catch people out, and it is worth restating. The creep is measured from the lowest percentage in the trailing twelve months, not from the current holding. A majority holder who bought earlier in the year has already spent some or all of the allowance, and a holder whose percentage rose passively, for example because the company cancelled shares, has spent it without transacting. The Panel says as much: a person cannot use rule 7(e) if their control percentage has already increased by 5 per cent or more from its lowest point over the last year, regardless of how that increase came about.
The free float calculation in rule 56 is the other provision worth understanding early rather than late, because it converts acceptance levels into a legal right. An offeror who clears the 50 per cent free float test has a fixed price and no objection process. An offeror who becomes dominant owner on a thinner acceptance rate hands the remaining holders a rule 57 objection right. The offeror’s own stake and its rule 36 on-market buying are stripped out of that denominator, which is precisely what stops a buyer from manufacturing the outcome with its own money.
The narrowest point in the whole structure remains the definition of a voting right. Because the Code counts votes at meetings rather than economic exposure, arrangements that deliver economic interest without a currently exercisable vote sit outside rule 6(1), while a voting agreement over shares somebody else owns sits inside it through control and association. A reader assessing whether a stake is approaching the line should therefore be reading for who can vote and who has agreed with whom, not for who is exposed to the price.
What the documents say
Twenty per cent is not a disclosure trigger in New Zealand. It is a wall. Rule 6(1) of the Takeovers Code does not require a buyer who crosses it to tell anyone; it forbids the crossing altogether unless one of a short list of exceptions applies. The most common of those exceptions is a full offer to every shareholder. That is the sense in which the line forces a bid: a buyer who wants twenty one per cent generally has to be willing to ask for one hundred.
The rule, and what it counts
The Takeovers Code governs transactions and events affecting the voting rights attached to shares held by shareholders of Code companies. A Code company is a New Zealand-registered company that is listed on the NZX, or that has 50 or more shareholders and 50 or more share parcels and is at least medium-sized.
Rule 6(1) reads that, except as provided in rule 7, a person who holds or controls no voting rights, or less than 20 per cent of the voting rights, in a Code company may not become the holder or controller of an increased percentage unless, after that event, that person and that person’s associates hold or control in total not more than 20 per cent; and a person who holds or controls 20 per cent or more may not become the holder or controller of an increased percentage at all.
The unit being counted is narrower than most people assume. A voting right is a currently exercisable right to cast a vote at meetings of shareholders, excluding rights exercisable only in specified circumstances. The Panel’s guidance is explicit that the Code’s focus is solely on voting power at company meetings and that it does not restrict aggregation of economic interests in Code companies, which differs from jurisdictions such as Australia where the analogous restrictions operate on relevant interests.
That leaves an obvious gap, and the Code closes it with anti-avoidance. The Panel notes that if the fundamental rule were triggered solely by changes in a person’s registered holding it could be easily avoided by property-based arrangements such as nominees, or contractual ones such as voting agreements. So the rule catches a person who holds or controls, and it aggregates associates. Control and association are the two concepts that decide whether a wall has been crossed, and they are the subject of a dedicated guidance note published on 7 April 2026.
The ways through
Rule 7 provides the exceptions. Two of them run through shareholder meetings, and the Panel’s timing guidance notes that the Companies Act 1993 rather than the Code supplies the timing rules for meetings held for rules 7© and 7(d).
Rule 7(e) is the creep. A holder or controller of more than 50 per cent but less than 90 per cent of the voting rights may increase, provided the resulting percentage does not exceed by more than 5 the lowest percentage held or controlled by that person in the 12-month period ending on and including the date of the increase. The increase is measured against the lowest holding over the last year, not the current one, so a person cannot use rule 7(e) if their control percentage has already risen by 5 per cent or more from its low point, however that rise came about. The Panel’s worked example is precise: a shareholder whose control percentage went from 0 per cent to 75 per cent by a shareholder-approved allotment on 31 March 2013 could not increase again until after 31 March 2014, and could then move to 80 per cent.
Only the person above 50 per cent may creep. Associates of that person cannot rely on rule 7(e) to increase their own control percentage. Where more than 50 per cent but less than 90 per cent is jointly held or controlled by two or more persons, the Panel considers they may together rely on rule 7(e), but only in respect of the jointly held shares. In the Panel’s Example 1, two people holding 51 per cent jointly as trustees may jointly acquire a further 5 per cent after twelve months, but if one of them acquired further shares on their own account they would breach the fundamental rule as an associate of the other, because neither alone holds more than 50 per cent.
What happens during an offer, and at ninety per cent
The Code keeps constraining the buyer once an offer is live. Rule 36 provides that during the offer period the offeror must not acquire equity securities in the target other than under the offer unless, among other things, the acquisition will not result in the offeror and its associates holding or controlling in total more than 20 per cent of the voting rights, excluding acceptances under the offer, unless the offer has become unconditional.
The next threshold is 90 per cent. Part 7 of the Code is triggered when a shareholder becomes a dominant owner, which rule 50 defines as a person, or persons acting jointly or in concert, who becomes the holder or controller of 90 per cent or more of the voting rights. Dominant ownership is usually reached through acceptances, but the Code allows other routes including a creeping acquisition under rule 7(e), and all routes must be Code-compliant. Two shareholders who together control 90 per cent or more cannot simply agree to act in concert in order to become a dominant owner, because entering such an arrangement may breach rule 6(1), most likely through rule 6(2)(b).
Reaching it is not optional in its consequences. Once dominant ownership is reached, the dominant owner must elect either to require the outstanding security holders to sell all their equity securities, or to give each outstanding holder the right to require the dominant owner to buy theirs. A dominant ownership notice under rule 51 must be sent immediately on reaching dominant ownership, to the outstanding security holders, the Code company, the Panel and the licensed market operator, followed by a compulsory acquisition notice under rule 54.
The price at the end depends on a figure calculated during the offer. Under rule 56, if more than 50 per cent of the equity securities under offer are accepted, the compulsory acquisition consideration is the offer price and there is no provision for objecting to it. Securities held or controlled by the offeror and its associates are excluded from that calculation, as are acquisitions made under rule 36, and the remaining acceptances are termed the free float. If 50 per cent or less of the free float is accepted and the offeror becomes the dominant owner, rule 57 gives shareholders the right to object to the consideration.
The exchange has its own version of the line
The NZX Listing Rules carry a parallel twenty per cent concept for issuers whose governing documents adopt the takeover provisions in Appendix 3. A Restricted Transfer is defined there to include a transfer that would result in the votes controlled by any person, or group of persons who are associated persons of each other, in any class of quoted equity securities of an issuer exceeding 20 per cent of the votes attached to that class. Appendix 3 also defines a Differential Offer, which includes an offer made to some but not all holders of a class, or one that would result in different prices or terms applying among holders of the same class, or in the transfer of different proportions of the holdings offered for disposal.
