Corporate Merger and Share-Exchange Approval and Filing Requirements in Michigan

At a glance

Requirements one by one

Michigan's merger plan carries the capitalization record

Under Mich. Comp. Laws § 450.1701, each constituent board adopts a plan that names the parties and survivor and states, for every class and series, the number outstanding, ordinary and separate voting status, and how that number may change before effect. The plan states the merger terms, share conversion, survivor article amendment or restatement, and other desired provisions.

Section 450.1702 uses a separate plan when one corporation acquires all outstanding shares of one or more classes or series of another. A voluntary partial acquisition is not the statutory share-exchange route.

Each board recommends, declines, or recommends against

After adoption, the plan is submitted when shareholder action is required. The board recommends approval or, for the public offer route, tender. It may make no recommendation because § 450.1529 applies, because of a conflict, events after adoption, contractual obligations, or other special circumstances. If it makes no recommendation or recommends against approval or tender, it must tell shareholders the basis. The board may condition submission on any basis.

Every record holder receives the transaction notice

§ 450.1404 supplies the general 10-to-60-day meeting-notice window. § 450.1703a(2)(d) extends merger or exchange meeting notice to every record holder, voting or nonvoting. The general notice window is 10 to 60 days. The package contains the plan or a summary, states that the complete plan is available on request when summarized, and includes the dissent statement and procedure reference when rights apply.

Minimum-vote consent must be in the articles

Under § 450.1407, less-than-unanimous written consent exists only if the articles authorize it. It uses the votes needed at a meeting where every entitled share was present and voted. Sufficient consents dated no more than 10 days before the record date must be delivered within 60 days after that record date, followed by prompt notice to qualifying nonconsenters.

Every entitled shareholder may instead consent unanimously before or after the action. An electronic consent counts as written, signed, and dated if the statutory identity/date information accompanies it, but is not delivered until reproduced in paper form and delivered by an allowed method.

Approval uses outstanding shares, not votes cast

The ordinary threshold is a majority of all outstanding shares entitled to vote, plus a majority of outstanding shares of each separately voting class or series. A merger creates a separate group when an equivalent articles amendment would do so; every included share-exchange class or series is a group.

Michigan adds an unusual fair-value exception. A class or series loses that separate vote if the board reasonably determines its plan consideration has a fair value at least equal to the shares' fair value on the plan-adoption date. The statutory approval is still not a substantive fairness determination.

The survivor exception has no percentage cap

Except where its articles or § 450.1754 require action, survivor holders need not vote when the survivor's articles remain unchanged and every pre-effective holder keeps the same number of shares with identical designations, preferences, limitations, and relative rights.

Michigan's current survivor test contains no 20% issuance condition. The acquiring corporation's holders likewise ordinarily need not approve a share exchange. Section 450.1754 is a separate override: notice, voting, and dissent rights return when acquisition securities convert into common stock and the common shares issued or initially issuable exceed 100% of the acquirer's pre-acquisition common-share base, including its then-convertible securities.

A corporation with no business, shares, or board has an incorporator route

§ 450.1706 permits a domestic corporation that has not commenced business, issued shares, or elected a board to merge with a domestic or foreign corporation by unanimous incorporator consent. A majority of the incorporators execute the Certificate, while every other party follows its otherwise applicable merger law.

The 90% parent route is board-driven

Under §§ 450.1711 through 450.1713, a domestic parent owning at least 90% of every outstanding class of a domestic subsidiary may merge the subsidiary into itself or another qualifying subsidiary, or itself and qualifying subsidiaries into one such subsidiary. The parent board adopts the plan; subsidiary boards and every corporation's holders are ordinarily unnecessary.

The subsidiary articles restore its holder vote if they require a merger vote above the percentage the parent owns. Parent holders act if its articles require approval or the plan amends parent articles or leaves a subsidiary as survivor in the circumstances stated by § 450.1713.

When the parent owns less than 100%, current law requires it promptly after filing to mail each minority subsidiary record holder a plan or summary unless waived and to follow the dissenters' provisions. Pending S.B. 789 would permit personal, mail, or electronic delivery instead.

The offer-followed route is public-company-only

§ 450.1703a(3) applies only when the corporation has a class of voting stock registered under Exchange Act § 12. Unless its articles say otherwise, the plan invokes the route and calls for prompt completion after the threshold. Another party or its parent makes an any-and-all offer, keeps it open at least 20 business days or the longer SEC-required period, purchases all properly tendered and unwithdrawn shares, and reaches the otherwise required vote with purchased, owned, and specified committed shares.

The offeror or wholly owned subsidiary then merges with or into, or completes a share exchange with, the corporation. Untendered shares receive the same amount and kind of consideration as tendered shares of their class or series, subject to the statute's owned-share exceptions. This public-company boundary is not an ordinary private-company shortcut. Chapter 7 states no separate ordinary-private holding-company reorganization.

Each corporation executes and files the Certificate

§ 450.1707 requires a Certificate on behalf of each corporation. It states the required party, capitalization, conversion or exchange, survivor article, board-adoption, free-plan, holder-approval or no-vote, incorporator, and assumed-name information.

Current LARA forms are:

• Form 550 (Rev. 07/25) for an ordinary merger;
• Form 551 (Rev. 07/25) for a parent-subsidiary merger;
• Form 553 (Rev. 07/25) for a share exchange; and
• Form 552 (Rev. 07/25) for post-filing abandonment before effect.

An authorized officer or agent signs. § 450.2060 lists $50 for a Chapter 7 Certificate. Forms 550, 551, and 553 instruct payment of $50 for each corporation within their stated scope, plus applicable assumed-name and authorized-share-increase charges. The current forms provide online, mail, and in-person routes.

Endorsement or a later time makes the transaction effective

Under § 450.1131, the Certificate is delivered to the administrator with the required fee and accompanying documents. § 450.1132 makes it effective when endorsed filed unless it states a later effective time no more than 90 days after delivery. The filing signer states name and capacity; a seal, secretary attestation, acknowledgment, or proof is optional.

Abandonment remains possible until effectiveness

Before the Certificate becomes effective, § 450.1741 permits abandonment subject to contract rights under the plan procedure or, if the plan is silent, as the board determines without further shareholder action. If the Certificate was filed, the corporation files Form 552 within 10 days after abandonment and no later than the proposed effective day. The statutory abandonment fee is $10 for each corporation for which the filing is made.

Chapter 7 states no general plan-amendment or mandatory holder-reapproval rule. § 450.1485 separately requires account books, shareholder, board and executive-committee minutes, and the shareholder-name, address, holding, class, series, and acquisition-date record, but states no transaction-specific retention period.

Dissent rights depend on route, listing, and consideration

§ 450.1762 may give dissent/payment rights for an approval-required merger, the public-offer route, a subsidiary merged under § 450.1711, acquired shares in an exchange, and a § 450.1754 issuance. Unless governing records add rights, listed shares can be excluded. A merger or exchange can also lose rights when holders receive cash, qualifying listed shares, or both.

§ 450.1764 requires a meeting notice to state that holders are or may be entitled to dissent and include §§ 450.1761 through 450.1774. A no-vote action triggers written notice and the statutory dissenters' notice; a holder who consents cannot dissent. The public offer itself carries the dissent statement, statutory text, and dissenters' notice.

When effective, § 450.1724 ends disappearing corporations, vests property and rights in and places liabilities on the survivor, permits continuation or substitution in pending proceedings, changes survivor articles as planned, and converts shares. These effects do not establish fiduciary fairness or satisfy tax, securities, proxy, tender-offer, antitrust, creditor-priority, fraudulent-transfer, contract, employment, benefit-plan, licensing, or industry law.

What trips people up

• The vote counts outstanding shares. A majority of votes cast at a quorate meeting can still be insufficient.
• The class vote has a fair-value exception. The board's reasonable consideration finding can remove a separate class or series vote, but is not a global fairness determination.
• There is no 20% survivor cap. Michigan instead has the distinct § 450.1754 vote when common issuance exceeds 100% of the acquirer's base.
• The public offer route is not private-company procedure. Exchange Act § 12 registration is an express gateway.
• Form fees are stated per corporation. A two-Michigan-corporation merger ordinarily follows the current form's $50-per-domestic-corporation instruction, before assumed-name or share-increase charges.

Common questions

Can Michigan shareholders approve by written consent?

Yes. Unanimous written consent is always available. A lower meeting-minimum threshold is available only if the articles authorize it, with the statutory record-date, 60-day delivery, dating, paper-delivery, and nonconsenter-notice rules.

Does the survivor always avoid a shareholder vote?

No. Its articles and every continuing holder's shares must remain unchanged, its articles must not require action, and § 450.1754 must not restore voting rights because of an acquisition-scale common issuance.

Can a parent merge a 90%-owned subsidiary without notice?

Not when minority shares remain. The current statute requires a plan or summary promptly after filing and preserves the dissenters' framework; S.B. 789 proposes to broaden the permitted delivery methods.

Does filing prove the deal is fair or preserve dissent rights?

No. Filing supplies the statutory effective event. Fiduciary process, valuation, dissent procedure, tax, securities, antitrust, creditor, contract, and regulatory questions remain separate.

Statutes and sources

• Mich. Comp. Laws §§ 450.1701-.1741, 450.1754, and 450.1762-.1764 — plans, approval, exceptions, no-shares, 90%, offer, Certificate, effect, abandonment, and dissent boundaries. https://www.legislature.mi.gov/documents/mcl/pdf/mcl-Act-284-of-1972.pdf (accessed 2026-08-26)
• Mich. Comp. Laws §§ 450.1131-.1132, 450.1404, 450.1407, 450.1485, 450.1529, and 450.2060 — filing, notice, consent, records, recommendation, and fees. https://www.legislature.mi.gov/documents/mcl/pdf/mcl-Act-284-of-1972.pdf (accessed 2026-08-26)
• Michigan LARA Forms 550, 551, 552, and 553 (Rev. 07/25) — current merger, parent-subsidiary, abandonment, and share-exchange forms and instructions. https://www.michigan.gov/lara/bureau-list/cscl/corps/forms/corporation-forms (accessed 2026-08-26)