Imagine an unsolicited bidder offering more for Anthropic shares than the market pays. Public holders could like the price. The bidder would still have to persuade a board largely elected by the Long-Term Benefit Trust, then get past a single share whose votes are set to 50.1% on general shareholder matters. Anthropic warns in its 26 October 2026 S-1 that its governance may reduce unsolicited merger proposals, tender offers, and proxy contests, leaving investors without an opportunity to sell at a premium.1 A premium is a useful argument in an auction. It is not a key that opens every corporate door.

The S-1 is preliminary, and the IPO has not been completed as of this article's date. The proposed charter and related agreements describe what would operate around the offering, subject to amendment.12 The five-class control map covers the full governance structure; the question here is how its parts would respond to a bid. No actual offer is described in the filing.

First gate: a bidder needs a board, not a press release

An unsolicited offer can arrive without management's invitation. A statutory merger cannot complete just because a bidder announces a price and shareholders cheer. Delaware's ordinary merger route requires the target board to approve a merger agreement and declare it advisable before the agreement goes to shareholders. A sale of all or substantially all assets likewise runs through the board and a shareholder authorization vote.34 The bidder's first commercial task is to make the directors engage with the proposal.

Anthropic's proposed Class T share gives the Long-Term Benefit Trust, or LTBT, the right generally to elect and remove the smallest number of directors constituting a majority of the board. Holders of Class A and Class F stock elect the remaining directors. The trust and the Founder LLC together would thus choose every seat while both special shares remain in place.12 A bidder trying to bypass an unreceptive board through a conventional proxy contest would discover that public Class A holders cannot elect the trust's seats. The Founder LLC's weighted vote also governs the other seats if its members agree how to use it.

This is board appointment power, not a standing instruction to directors to reject offers. Anthropic says business decisions remain with the board, and trustees do not control day-to-day management or strategy. The directors must exercise their own duties when reviewing a proposal.1 The trust can choose most of the people who decide. It cannot turn an offer down by returning an unopened envelope marked mission.

That distinction matters if a bid carries a large premium and a credible plan for Anthropic's public benefit purpose. Directors could decide to negotiate, reject, seek changes, or approve, depending on the actual terms and their duties. The filed structure gives the LTBT powerful influence over who sits at that table, but a routine merger is not separately submitted to trustees merely because it is a merger. Whether a particular deal also changes protected trust rights is a later, different question.12

Second gate: the Founder LLC has to decide what its one share says

If the board approves a conventional merger, Delaware generally requires a majority of the outstanding stock entitled to vote to adopt it. Anthropic's proposed Class F share would be assigned 50.1% of total voting power on matters submitted to shareholders generally, including a merger, sale, or other major corporate transaction requiring their approval. Class A shareholders share the remaining general vote; Class T does not cast a general merger ballot simply by being Class T.123 The public can own many shares and still lose a vote to one share with almost no economic claim.

The F share belongs to Anthropic Founders, LLC, initially with seven co-founders as members. Its instruction is an internal decision, with one vote for each Continuing Founder. A majority directs the F share on ordinary shareholder matters. With all seven still qualifying, four agreeing founders can make its 50.1% vote support or oppose a merger; any single founder cannot. The seven could also hold and vote their personal Class A shares independently of the LLC instruction.15 The word founder often arrives in an M&A conversation as if it names one person. Here it names a meeting, with membership and succession rules that can change the headcount.

If no majority of Continuing Founders gives the same instruction, the F share generally votes in proportion to the votes actually cast by Class A holders, provided a majority of outstanding A shares satisfies the specified quorum. This is a meaningful exception to the shorthand that founders can always veto a sale. A founder split could let the public vote drive the weighted share. It does not mean a bidder can manufacture a split, assume the A quorum, or skip the board's approval.1

The percentage also resists dilution. As more voting Class A stock is issued, the votes assigned to F adjust to keep its 50.1% share of general voting power. Buying or converting more A shares changes who controls the public side of the vote; it does not push F below 50.1% while that special share remains outstanding.12 A spreadsheet can make the acquirer's stake look enormous while the voting result stays exactly where it was.

A buyer seeking the entire company would have to specify what happens to the special shares, the public benefit purpose, and the post-closing board. A cash merger that eliminates Class F and Class T rights raises a different issue from the ordinary A-and-F shareholder vote: the proposed charter protects those rights against adverse changes, including changes effected indirectly through a merger or reorganization.2 The transaction's legal design matters as much as its headline price.

For Class F, a change that adversely affects its special rights needs a separate amendment threshold: approval by a majority of the whole board, the F holder, and, while T remains outstanding, the T holder. Inside the LLC, instructing F to approve a change to its own rights ordinarily takes all but one Continuing Founder, or six of the initial seven.125 For Class T, a change adversely affecting its special rights needs either approval from 80% of the whole board plus the T holder, or one of the charter's alternative shareholder combinations. Those alternatives require specified Founder LLC, employee Class E, and Class A approvals while F exists; after F sunsets, the charter specifies an 85% Class A route. The charter also protects board powers and the company's public benefit purpose from certain changes.2 The LTBT does not hold a veto over every acquisition. An acquirer also cannot assume it may erase T or F in the merger agreement without addressing these provisions.

The thresholds for changing trust rights are deliberately more demanding inside the Founder LLC than an ordinary sale vote. With the initial seven Continuing Founders, one route needs five founder instructions in favour, 75% of Class E votes cast, and a majority of Class A votes cast, each subject to the filing's quorum rules. During the first three years after the IPO, a second route trades unanimous founder instructions for a lower Class E threshold, plus the Class A vote. The separate 80%-of-board-plus-T-holder path also remains available.12 A bidder could win the founders' ordinary merger vote and still have work to do if its deal dismantles the trust structure. The employee Class E vote matters on those specified override routes, although employees have no general merger ballot.

The practical diligence is to mark the proposed consideration and surviving governance against each protective provision, then ask counsel which separate approvals the specific structure triggers. Some routes could preserve special rights or use the charter's alternatives. Others may have no realistic path without both the Founder LLC and trust cooperating. The filing describes a set of gates, not a universal certificate of impossibility.

A public tender buys shares, not the keys to the company

Could a bidder avoid the board by offering a premium directly to public shareholders? It could try to buy Class A shares. The proposed charter restricts transfer of F to a narrow Founder LLC reorganization and T to approved transfers; E employee shares are also restricted. A tender for A does not transfer the founder vote or the trust's board-election share.2 Even if many A holders sell, the bidder may become a large economic owner inside the same control structure.

Nor does a two-step tender automatically remove the board. Delaware's tender-offer merger route under Section 251(h) still begins with a board-approved merger agreement and requires the bidder to acquire enough of the stock that would otherwise be needed to approve the merger. With F carrying 50.1% of the general vote and unavailable in an ordinary public tender, acquiring only A shares cannot satisfy a majority-vote equivalent while F remains outstanding.23 The bidder can purchase a room full of tickets. The door it wants still has a different lock. The ordinary route through a hostile takeover is even narrower when the public vote cannot replace most directors.

The usual pressure campaign is also constrained. Anthropic's S-1 says its structure is likely to limit an unsolicited tender offer or a proxy contest to remove directors. Its proposed bylaws limit who may call a special shareholder meeting, impose advance notice for nominations, and restrict shareholder action by written consent. After the special shares sunset, other defenses become relevant: Anthropic has opted out of Delaware's Section 203 business-combination restrictions until the later of the F and T sunsets, when those restrictions would start applying.1 Section 203 is not the current obstacle under the filed IPO design. The bespoke votes are.

There are other possible ways for control to change over time. If the Founder LLC cannot maintain three qualifying Continuing Founders for 90 consecutive days, a 450-day transition starts before F sunsets. F can also disappear through specified surrender or dissolution routes. T has its own separate redemption and amendment paths.12 None is a reliable timetable for a bidder launching an unsolicited offer today. A sunset is an eventual condition, not a hostile bid's closing date.

The public benefit charter changes the board's decision

Anthropic is a Delaware public benefit corporation. Delaware law requires its directors to balance shareholders' financial interests, the interests of people materially affected by the company's conduct, and the specific public benefit in its charter. The statute supplies a defined standard for an informed, disinterested decision implicating that balance.6 The board must take the price seriously. It must also consider more than the price.

PBC status does not itself create a separate trustee ballot on a sale. The LTBT's special approval rights come from Anthropic's proposed charter, and they matter when a transaction reaches the rights that charter protects.26

Anthropic tells prospective investors that this could make it easier for the board to reject a hostile bid even if acceptance offered the highest short-term financial return. It also cautions that there is limited judicial precedent for this structure and uncertainty about how courts will interpret it.1 The operative issue is not whether directors can say “safety” in the meeting. A credible record would need to show how they evaluated the bid's financial value, mission effects, affected stakeholders, and available alternatives. That is an inference from the statutory balancing duty, not a prediction of how a court would rule on an actual bid.6 The power is real, and so is the obligation to use it as a decision rather than a slogan.

The economic cost is candidly disclosed. Anthropic says its governance may discourage a buyer from making an offer at all, delay or prevent a change of control, depress what some investors will pay for Class A shares, and deprive holders of a takeover premium.1 That is the bargain public buyers are being asked to price. The possible missing premium will never appear as a rejected offer if potential bidders conclude the gates are too expensive to approach.

What this structure teaches a founder considering a bid

A buyer could, in principle, proceed without every founder's agreement or a separate trustee vote on an ordinary merger. It still needs board action, and the trust generally selects most directors. A normal shareholder vote gives the Founder LLC 50.1%, unless its members fail to agree and the proportional-vote fallback applies. A deal that impairs F or T rights may need separate protective approvals, with alternative routes defined in the charter.123 No public shareholder vote by itself orders the board to sign an unsolicited deal.

If you are designing or buying into a similarly mission-protected company, draw three columns before discussing valuation: who selects the board, who can carry the general sale vote, and who must consent if the transaction changes special rights. Then read the internal agreement governing any voting vehicle. A 50.1% share held by seven people can behave differently from one held by a founder CEO. A trust-elected director is still a director. A takeover premium is still money that shareholders may never get a chance to accept.


Sources
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