Sigma Labs, Inc.‘s stocks are currently a part of 8 hedge funds’ portfolios, which represents 7.69% of the total amount of its stocks outstanding. This makes up a total of 756.02K shares of Sigma Labs, Inc.. Compared to the previous quarter, the number fell by -31.82% or -352.83K shares fewer. As for the holding position changes, 12.5% (1) of current hedge fund investors increased the number of shares held, 37.5% (3) of current holders sold a part of the shares held, and 25% (2) closed the holdings completely.