# Jack Sun

> Jack Sun is a seed investor backing Decentralized Finance (DeFi) and Web3. See 4 investments, round sizes, portfolio and contact details. Updated Oct 2026.

- Type: Angel Investor
- Location: San Juan, Puerto Rico
- Total investments: 4
- Last investment: Jul 2024
- Lead investor: 0%
- Last updated: Oct 2026
- LinkedIn: https://www.linkedin.com/in/hhjacksun
- X (Twitter): https://twitter.com/hhjacks

Jack sun is a partner at Wonderstruck.

## Contacts

5 contacts available for Jack Sun: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/jack-sun-9689?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Decentralized Finance (DeFi) | 2 | 50% |
| Web3 | 1 | 25% |
| Jewelry | 1 | 25% |
| Ethereum | 1 | 25% |
| Blockchain | 1 | 25% |

11 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 2 | 50% |
| Pre-Seed | 2 | 50% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 1 | 25% |
| United Kingdom | 1 | 25% |

## Investments

| Company | Description | Round size | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Agent | Agent can assist users in navigating DeFi's complexities more efficiently and flexibly, by offering easy creation and management of multiple sub-accounts. | $1M | Seed | Jul 29, 2024 | https://agent.exchange/ |
| Drosera | Drosera is a decentralized incident response system that uses hidden security intentions to contain and mitigate attacks. | $1.5M | Pre-Seed | Feb 15, 2024 | https://www.drosera.io |
| Watches.io | Watches.io seeks to ease the tracking, selling, and purchasing process for luxury watches, a market that is rapidly expanding in popularity among Gen Z and millennials. Watches.io is the e-commerce peer-to-peer marketplace for physical goods to be developed using Web3 technology. The smart contract-powered platform allows users to track their watchportfolios in real time, pursue diversification possibilities, and perform seamless buy/sell transactions. | $1.9M | Pre-Seed | Feb 13, 2024 | https://watches.io |
| Galleon DAO | Galleon DAO is a guild of experienced methodologists aiming to research, design, and create best-in-class thematic, leverage, and yield-based structured products on-chain across all EVM-based networks. | $1M | Seed | Feb 01, 2022 | https://galleon.community |

4 of 4 investments shown.

## Co-investors
- [Marin Ventures](https://shizune.co/investors/profile/marin-ventures-96eb) — VC Fund, 2 deals together
- [1kx](https://shizune.co/investors/profile/1kx) — VC Fund, 1 deal together
- [Caladan](https://shizune.co/investors/profile/alphalab-capital) — VC Fund, 1 deal together
- [AngelDAO](https://shizune.co/investors/profile/angeldao) — VC Fund, 1 deal together
- [Arrington XRP Capital](https://shizune.co/investors/profile/arrington-capital) — VC Fund, 1 deal together
- [Arrington XRP Capital](https://shizune.co/investors/profile/arrington-xrp-capital) — VC Fund, 1 deal together

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund

## FAQ

### What does Jack Sun invest in?

Jack Sun invests primarily in Decentralized Finance (DeFi), Web3 and Jewelry startups, most often at Seed and Pre-Seed stage. Most of the 4 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Jack Sun?

Public channels for Jack Sun include LinkedIn and X (Twitter). For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### When did Jack Sun last invest?

The most recent investment recorded for Jack Sun closed in Jul 2024. Shizune tracks 4 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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