September token unlocks: $4.5B set to hit the market

Around $4.5 billion worth of vested tokens will be released across multiple crypto projects in September 2025. The unlocks split between $1.17 billion from cliff releases and $3.36 billion from linear schedules between September 1-30.

Sui leads September releases with more than $153 million in tokens scheduled for unlock. Fasttoken follows with about $90 million, while Aptos will release nearly $50 million and Arbitrum approximately $48 million, according to Tokenomist. Starknet has $16.85 million scheduled, with Sei at roughly $16.49 million. Immutable and ZK also have eight-figure unlocks planned.

The releases affect projects at different stages of their token distribution. Sui has released about 35.1% of its total supply to date, leaving most tokens still locked. Fasttoken has already distributed more than 96% of its supply, making its September release a smaller percentage change to circulating tokens.

September token unlocks. Source: Tokenomist.ai

Token supply trackers show the unlocks span layer-1 and layer-2 networks, infrastructure projects, and application tokens. The releases follow predetermined vesting schedules that distribute allocations to teams, investors, community programs, and ecosystem funds.

September's unlocks include both cliff and linear release types. Cliff unlocks release larger batches of tokens at specific dates when lockup periods end. Linear unlocks distribute tokens gradually over extended timeframes. The combined release types reflect standard vesting designs used across crypto projects.

The $4.5 billion estimate represents tokens becoming available to various stakeholder groups, including early investors, development teams, and ecosystem recipients. Tracking platforms monitor these scheduled releases as they affect circulating supply for major networks throughout the month.

Crypto projects to unlock $4.5B in tokens this September