At first glance [0] Walz doesn't seem to have any stock holdings or reported trades, and his largest assets were a rental property and a state pension. As to wondering what his views on tech might be, IBTimes [1] only mentions the bill he signed that states Minnesota must transition to 100% clean energy by 2040.
[0]: https://www.barchart.com/story/news/27838482/a-look-at-the-p...
https://www.ibtimes.com/who-tim-walz-current-polymarket-favo...