Stock Analysis

An Insider Of Castile Resources Picks Up 57% More Stock

Castile Resources Limited (ASX:CST) shareholders (or potential shareholders) will be happy to see that insider Peter Cook recently bought a whopping AU$751k worth of stock, at a price of AU$0.084. That purchase boosted their holding by 57%, which makes us wonder if the move was inspired by quietly confident deeply-felt optimism.

Castile Resources Insider Transactions Over The Last Year

Notably, that recent purchase by Peter Cook is the biggest insider purchase of Castile Resources shares that we've seen in the last year. Even though the purchase was made at a significantly lower price than the recent price (AU$0.11), we still think insider buying is a positive. While it does suggest insiders consider the stock undervalued at lower prices, this transaction doesn't tell us much about what they think of current prices.

While Castile Resources insiders bought shares during the last year, they didn't sell. The chart below shows insider transactions (by companies and individuals) over the last year. If you click on the chart, you can see all the individual transactions, including the share price, individual, and the date!

View our latest analysis for Castile Resources

insider-trading-volume
ASX:CST Insider Trading Volume December 12th 2025

Castile Resources is not the only stock insiders are buying. So take a peek at this free list of under-the-radar companies with insider buying.

Does Castile Resources Boast High Insider Ownership?

For a common shareholder, it is worth checking how many shares are held by company insiders. We usually like to see fairly high levels of insider ownership. Insiders own 27% of Castile Resources shares, worth about AU$8.9m. We've certainly seen higher levels of insider ownership elsewhere, but these holdings are enough to suggest alignment between insiders and the other shareholders.

So What Does This Data Suggest About Castile Resources Insiders?

It is good to see the recent insider purchase. We also take confidence from the longer term picture of insider transactions. But on the other hand, the company made a loss during the last year, which makes us a little cautious. When combined with notable insider ownership, these factors suggest Castile Resources insiders are well aligned, and that they may think the share price is too low. So while it's helpful to know what insiders are doing in terms of buying or selling, it's also helpful to know the risks that a particular company is facing. To help with this, we've discovered 5 warning signs (2 are potentially serious!) that you ought to be aware of before buying any shares in Castile Resources.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of interesting companies.

For the purposes of this article, insiders are those individuals who report their transactions to the relevant regulatory body. We currently account for open market transactions and private dispositions of direct interests only, but not derivative transactions or indirect interests.

Mobile Infrastructure for Defense and Disaster

The next wave in robotics isn't humanoid. Its fully autonomous towers delivering 5G, ISR, and radar in under 30 minutes, anywhere.

Get the investor briefing before the next round of contracts

Sponsored On Behalf of CiTech

New: AI Stock Screener & Alerts

Our new AI Stock Screener scans the market every day to uncover opportunities.

• Dividend Powerhouses (3%+ Yield)
• Undervalued Small Caps with Insider Buying
• High growth Tech and AI Companies

Or build your own from over 50 metrics.

Explore Now for Free

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

About ASX:CST

Castile Resources

Engages in the mineral exploration and project development activities in Australia.

Flawless balance sheet with moderate risk.

Weekly Picks

WO
MGPI logo
woodworthfund on MGP Ingredients ·

THE KINGDOM OF BROWN GOODS: WHY MGPI IS BEING CRUSHED BY INVENTORY & PRIMED FOR RESURRECTION

Fair Value:US$4034.1% undervalued
23 users have followed this narrative
4 users have commented on this narrative
5 users have liked this narrative
DO
Double_Bubbler
EVTL logo
Double_Bubbler on Vertical Aerospace ·

Why Vertical Aerospace (NYSE: EVTL) is Worth Possibly Over 13x its Current Price

Fair Value:US$6089.9% undervalued
23 users have followed this narrative
3 users have commented on this narrative
17 users have liked this narrative
TI
TickerTickle
ORCL logo
TickerTickle on Oracle ·

The Quiet Giant That Became AI’s Power Grid

Fair Value:US$389.8149.0% undervalued
43 users have followed this narrative
4 users have commented on this narrative
8 users have liked this narrative

Updated Narratives

IM
HOH logo
Imthetxarbi on High Arctic Overseas Holdings ·

Deep Value Multi Bagger Opportunity

Fair Value:CA$471.8% undervalued
1 users have followed this narrative
0 users have commented on this narrative
0 users have liked this narrative
AG
Agricola
EXN logo
Agricola on Excellon Resources ·

A case for CA$31.80 (undiluted), aka 8,616% upside from CA$0.37 (an 86 bagger!).

Fair Value:CA$31.898.8% undervalued
1 users have followed this narrative
0 users have commented on this narrative
0 users have liked this narrative
ST
stuart_roberts
UNCY logo
stuart_roberts on Unicycive Therapeutics ·

Unicycive Therapeutics (Nasdaq: UNCY) – Preparing for a Second Shot at Bringing a New Kidney Treatment to Market (TEST)

Fair Value:US$21.5370.2% undervalued
1 users have followed this narrative
0 users have commented on this narrative
0 users have liked this narrative

Popular Narratives

TH
TheWallstreetKing
MVIS logo
TheWallstreetKing on MicroVision ·

MicroVision will explode future revenue by 380.37% with a vision towards success

Fair Value:US$6098.4% undervalued
120 users have followed this narrative
11 users have commented on this narrative
22 users have liked this narrative
AN
AnalystConsensusTarget
NVDA logo
AnalystConsensusTarget on NVIDIA ·

NVDA: Expanding AI Demand Will Drive Major Data Center Investments Through 2026

Fair Value:US$250.3927.7% undervalued
963 users have followed this narrative
6 users have commented on this narrative
25 users have liked this narrative
RO
RockeTeller
SCZ logo
RockeTeller on Santacruz Silver Mining ·

Crazy Undervalued 42 Baggers Silver Play (Active & Running Mine)

Fair Value:CA$8683.3% undervalued
78 users have followed this narrative
8 users have commented on this narrative
21 users have liked this narrative