When the Customer Becomes a Potential Shareholder
Amazon’s Generac agreement reveals a second layer of AI infrastructure procurement: a large customer can negotiate not only for supply, but also for contractual rights that create potential exposure to supplier equity value.
Amazon’s agreement with Generac looks like another large AI infrastructure procurement deal.
Generac expects $2.4 billion of initial backup-generator deliveries in 2027 and 2028 under a long-term supply agreement with Amazon.¹
But the more interesting part of the transaction may be the warrant accompanying the commercial relationship.
Generac issued Amazon.com NV Investment Holdings LLC, a wholly owned Amazon subsidiary, a warrant to acquire up to 1,693,745 Generac shares at $200.9266 per share. Of those warrant shares, 307,954 vested immediately. The remaining balance vests over the term of the warrant in multiple tranches contingent on aggregate gross payments, net of certain offsets, received by Generac and its global affiliates from or on behalf of Amazon and its affiliates for backup power generators for Amazon data centers, up to a total of $8 billion.¹˒²˒³
The $8 billion is not a stated purchase commitment. It is the upper aggregate payment level referenced in the warrant’s vesting conditions. The $2.4 billion of expected initial deliveries equals 30% of that level. ¹
The structure raises a broader question for AI infrastructure:
When a hyperscaler spends billions with a strategic supplier, what contractual rights can accompany that spending?
The customer has two roles
Amazon is the customer purchasing generators. Through the warrant, its subsidiary also has the potential to become a Generac shareholder.
Those roles are linked by the contractual structure.
Most of the warrant shares vest as the specified payment conditions are satisfied. Subject to vesting and other conditions, the warrant can be exercised for Generac shares through September 16, 2033. ¹˒²
That does not mean Amazon automatically receives equity upside from buying more generators. The economic value of the warrant depends on factors including vesting, Generac’s share price, exercise and the terms of the warrant and transaction agreement.
But it adds something beyond the supply agreement: a contractual right that can create potential exposure to supplier equity value.
A useful lens: incomplete contracts
The warrant looks unusual through a procurement lens.
It looks less unusual through the economics of incomplete contracts.
Long-term contracts cannot specify every economically relevant future circumstance. This matters when companies enter relationships involving uncertainty and relationship-specific commitments.
C. Edward Fee, Charles Hadlock and Shawn Thomas examined more than 10,000 customer-supplier relationships in a 2006 Journal of Finance study. They found that factors related to contractual incompleteness and financial-market frictions were important in the decision of a customer firm to take an equity stake in a supplier. They also found that relationships accompanied by equity ownership lasted significantly longer than other relationships in their sample.⁴
The research does not establish why Amazon and Generac chose this particular structure. Nor does Generac’s filing identify incomplete contracting as the motivation for the warrant.¹˒²˒³
The research instead provides a useful framework for understanding why equity ownership can appear within customer-supplier relationships.
Generac is not an isolated example
Amazon has used purchase-linked warrants with other suppliers.
In February 2026, Astera Labs disclosed a warrant allowing an Amazon subsidiary to acquire up to 3,262,299 shares at $142.82 per share. The warrant shares vest upon performance conditions comprising specified tranches of payments by or on behalf of Amazon and its affiliates for purchases of up to $6.5 billion of Astera Labs’ smart fabric switch, signal conditioning and optical engine products.⁵
Plug Power provides another precedent. Its filing for the quarter ended June 30, 2026 states that its 2022 Amazon warrant covers up to 16 million shares. At June 30, 2026, four million shares had vested and none had been exercised. Plug also reported $15.9 million of provision for common stock warrants recorded as a reduction of revenue for the 2022 Amazon warrant during the six months ended June 30, 2026.⁶
The contracts, products and accounting treatment differ. But they share a feature worth watching:
A large customer combines substantial commercial spending with a contractual right to acquire supplier equity, subject to the terms of the relevant warrant.
The second layer of AI capex
AI capex analysis usually asks where hyperscaler dollars are going.
GPUs. Networking. Data centers. Power. Cooling. Generators.
The Generac agreement suggests another variable to track: What contractual rights accompany that spending?
That question becomes relevant as AI infrastructure spending extends further into physical systems. Hyperscalers are entering large commercial relationships with companies supplying equipment required to build and operate data centers.
Capex tells us the scale and destination of spending. It does not by itself reveal all the contractual economics surrounding that spending.
Purchase-linked warrants introduce another variable: contractual optionality associated with commercial spending.
If similar structures continue appearing across strategically important AI infrastructure suppliers, tracking them could provide information that capex numbers alone do not capture: what additional economic rights large buyers negotiate alongside procurement.
As AI capex grows, don’t just watch where hyperscalers spend. Watch what rights they negotiate while spending it.
References
Generac Holdings, Form 8-K, September 16, 2026. Primary source for the long-term supply agreement, expected $2.4 billion of initial deliveries, warrant size, exercise price and payment-linked vesting conditions.
Generac Holdings, Warrant, September 16, 2026. Primary warrant instrument.
Generac-Amazon Transaction Agreement, September 16, 2026. Primary transaction documentation.
Fee, Hadlock & Thomas, “Corporate Equity Ownership and the Governance of Product Market Relationships,” The Journal of Finance, 2006. Study of more than 10,000 customer-supplier relationships examining contractual incompleteness, financial-market frictions and customer ownership of supplier equity.
Astera Labs, Form 8-K, February 5, 2026. Primary source for the Amazon warrant and its payment-based vesting conditions.
Plug Power, Form 10-Q for the quarter ended June 30, 2026. Primary source for the status and accounting treatment of Plug Power’s 2022 Amazon warrant.
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