Regarding IGLDF, I read one of their past SEC filings for another reverse split (2019).
For that one, it looks like you needed to own more than .5 shares after RS to be rounded up, otherwise you'd be rounded down.
Treatment of Fractional Shares
In order to avoid the expense and inconvenience of issuing fractional shares (or payment therefor) in connection with the reverse share split, we intend to round any fractional share that results from the reverse share split to the nearest whole share (half-shares shall be rounded down).