Cytronic
Portfolio company
Publicly reported investor
Weekend Fund
Weekend Fund is a publicly reported investor in 4 companies that are also in Sahin Boydas' public portfolio, as of September 2026: Cytronic, Extropic and Flyby, and 1 more.
This page collects the public evidence behind that overlap. Every company below has its own source-backed directory of publicly reported investors, and Weekend Fund appears in each of those directories with a cited public source. The list is evidence-based and may not be complete: it includes only companies in Sahin Boydas' public portfolio where a cited source reports Weekend Fund as an investor. It is not a cap table, and it carries no deal terms.
Companies
4 companies in the public portfolio, listed A–Z with each company's public one-liner, Category, Sub-Category, and current public status. Every card links to the company profile and to the company's full directory of publicly reported investors.
Extropic
Thermodynamic computing for AI inference
Flyby
Building autonomous drones optimized for ML applications. Made in America
MainStreet
Small business accounting and financial management software
Categories
Counted across the 4 companies above; a company that carries more than one Category is counted in each.
Sources
One reviewed public source per company. Each link opens this site’s source reference, which names the publisher and then links out, so no third-party page is republished here.
- Cytronic: Source: Cytronic
- Extropic: Source: Extropic
- Flyby: Source: Spectrum News
- MainStreet: Source: TechCrunch
Related publicly reported investors
Other investors on this site that are publicly reported in some of the same companies. The number is how many of the 4 companies above also list that investor.
Frequently asked questions
How many companies in Sahin Boydas' public portfolio is Weekend Fund publicly reported in?
Weekend Fund is a publicly reported investor in 4 companies that are also in Sahin Boydas' public portfolio, as of September 2026: Cytronic, Extropic, Flyby and MainStreet.
Which Categories do the companies with Weekend Fund as a publicly reported investor belong to?
The 4 companies span 8 Categories: AI (2), Robotics (2), Aerospace (1), Automation (1), Fintech (1), Hardware (1), Semiconductors (1) and Software (1). Each Category links to every portfolio company in it.
What does this Weekend Fund page not say?
It is not a cap table and not a complete list of Weekend Fund's investments. It lists only companies in Sahin Boydas' public portfolio where a cited public source reports Weekend Fund as an investor, and it carries no deal terms.