There is plenty of interest around IperionX Ltd (ASX: IPX) again on Friday, with the share price rocketing in midday trade.
At the time of writing, the share price is up 13.66% to $4.66. By comparison, the S&P/ASX 300 Index (ASX: XKO) is up 0.98% to 8,683 points.
That move builds on a strong run, with shares now up about 32% over the past month.
The latest push higher follows fresh disclosures showing company directors have been buying shares on-market.
Here's what stood out.

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Directors step in with on-market buys
A series of Appendix 3Y filings released on Thursday showed multiple IperionX directors increasing their holdings.
Executive Chairman Todd Hannigan picked up 480,000 shares across late April trades. The total consideration came in at just over $2.07 million.
Chief Executive Anastasios Arima also added to his position, buying 110,000 shares worth roughly $494,000.
Non-Executive Director Lorraine Martin joined in as well, acquiring 4,600 ADS, valued at around $145,000. ADS are US-listed shares, with each 1 representing 10 of the company's shares.
All 3 transactions were completed on-market and not through any issued securities or incentives.
Why investors are paying closer attention
Director buying does not guarantee anything, but it does draw attention.
When multiple insiders step in at the same time, it can shift how investors view the near-term outlook for the stock.
In this case, the purchases come after a period of extreme volatility in the share price.
IperionX pulled back from earlier highs of $8.505 in late January, before rebounding strongly in recent weeks.
Seeing management add exposure to their portfolios can be read as a sign of confidence in where things are heading.
It also means fewer shares are available to trade, which can make it easier for the price to move higher if buying picks up.
Foolish bottom line
IperionX shares have been trending higher for several weeks, with buyers stepping in consistently.
Over the past month, the stock has added more than 30%, with interest returning to critical minerals and US-based supply chains.
From my side, I see room for this to keep moving up in the short term if momentum holds and buying continues.
The insider buying helps support my view, as it shows management is stepping in at these bargain levels.
Looking further out, a lot comes down to how supply chains shift, especially with ongoing tension between the US and China.
If that keeps playing out, IperionX will likely stay on the radar.