Public Stake Value
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No US-listed stake on file
Latest moves
No moves from John Tu in the digest yet. The archive grows every morning.
Recent SEC filings
This person doesn't file with the SEC.
Footprint
Companies
Kingston Technology Corporation (private; Fountain Valley, CA; revenue $14.4B in 2025)Co-founder
source ↗More
- Role
- Co-founder (1987, with David Sun), CEO/president
Stakes
Private deals
Kingston's revenue was $14.4B in the last full year, making it Forbes' 27th-largest US private company. AI…Feb 2026
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- In full
- Kingston's revenue was $14.4B in the last full year, making it Forbes' 27th-largest US private company. AI hyperscalers buying up memory chips caused a supply crunch that added ~$14B combined to Tu's and Sun's wealth by Feb 2026 (Bloomberg Billionaires data)
- Date
- 2026-02-22
Real estate
Rolling Hills, California (listed residence)residence · as of 2026-09
source ↗Giving
Tu Foundation (Fountain Valley, CA; John Tu, chairman) — total assets $28.9M, expenses $1.9M (tax year 2023 990-PF data); latest 990-PF filed 2025-11-14EIN 27-1598417
source ↗What to watch
Memory-chip price cycle: AI-driven DRAM/NAND shortage is the main driver of Kingston's value, and of Tu's and Sun's…
source ↗More
- In full
- Memory-chip price cycle: AI-driven DRAM/NAND shortage is the main driver of Kingston's value, and of Tu's and Sun's Bloomberg/Forbes net-worth swings