The latest review of Great Boulder Resources shares, dated 24 October 2026, identified several insider purchases over the preceding year and no individual insider sales within its coverage.
Chairman Christopher Tuckwell made the largest purchase highlighted: approximately A$100,000 at 8.5 cents a share. The review used a recent market price of 7.8 cents.
That puts the quoted market price below his purchase price. It shows the price he was prepared to pay at the time; it does not establish what the shares should be worth today.
Figure 1: Exploration drilling at the Side Well Gold Project in Western Australia. Archive photograph. Credit: Great Boulder Resources.
The Buying Dates Matter as Much as the Amounts
The review reported no individual insider transactions during the preceding three months.
Readers should therefore treat the purchases as part of the company’s funding and ownership history, rather than evidence of a new wave of buying in October.
The accompanying ownership data lists four individual purchases on 19 June 2026:
| Individual | Reported purchase value | Shares acquired | Price |
| Christopher Tuckwell | Approximately A$100,000 | 1,176,471 | A$0.085 |
| Gregory Hall | Approximately A$30,000 | 352,941 | A$0.085 |
| Melanie Leighton | Approximately A$20,000 | 235,294 | A$0.085 |
| Karen O’Neill | Approximately A$15,000 | 176,471 | A$0.085 |
The Placement Gives the Purchases More Context
Great Boulder’s May announcement outlined a A$40 million placement at 8.5 cents per share, involving approximately 470.6 million new shares.
It also disclosed proposed director participation of A$165,000, subject to shareholder approval. Directors would participate on the same terms and at the same offer price as other placement investors.
The amount and price match the four June purchases listed above. This is why Great Boulder Resources insider trading coverage needs more than a list of names and amounts.
A placement also differs from an ordinary market purchase. Subscribing for newly issued shares supplies capital to the company. Buying existing shares on-market generally transfers money to the selling shareholder.
A Lower Market Price Does Not Establish a Bargain
The Great Boulder Resources share price cited in the October review was 0.7 cents below the 8.5-cent purchase price, a difference of approximately 8.2%.
That comparison is historical, not a live quote.
A director’s purchase price can be a useful reference, but it is not a valuation floor. Project expectations, funding requirements and the wider market can change after a transaction.
The more useful question is what the company has achieved with the money raised. Has drilling improved confidence in the deposit? Have development studies clarified costs? Is the remaining cash sufficient for the next announced stage?
Those checks help connect an ownership decision with progress in the business.
Insider Ownership Shows Exposure, but Not Control
The supplied review estimated individual insider ownership at 1.8%, worth approximately A$2.8 million at its reference valuation.
That gives insiders exposure to movements in the company’s equity value. It does not, by itself, show how significant each holding is to the individual or establish control over shareholder votes.
For existing shareholders, both numbers matter: the shares held and the proportion of the company those shares represent.
Colitco’s coverage of director dealings at EBOS Group offers a separate example of why the circumstances behind a transaction deserve attention.
Project Spending Must Support the Investment Case
The placement was intended to fund the Peak Hill acquisition and support drilling and engineering work across Peak Hill and Side Well.
That gives investors a practical way to assess the funding decision. The money has identifiable uses against which later announcements can be compared.
Neither follows automatically from a director subscribing for shares. A resource estimate is another step, but it does not settle every question about recovery, operating costs, approvals or finance.
Colitco’s Zelica Gold Project coverage examines another explorer’s progression from a reported resource towards further project work.
The Next Reports Need to Connect Cash With Progress
The insider purchases add evidence that several people involved in Great Boulder were willing to commit capital. Their value to the investment story increases when readers understand the timing and terms.
The next checks belong in the company’s operating and financial reports: cash remaining, exploration expenditure, study progress and any further funding requirements.
Director notices can then be read alongside those developments. For Great Boulder, the investment case ultimately rests on what its projects can deliver and the cost of getting there. Insider participation is one part of that assessment.
ALSO READ: Regis Resources Targets Gold Growth Beyond FY27
FAQs
Q1. Who made the largest insider purchase highlighted in the review?
Ans. Chairman Christopher Tuckwell, who purchased approximately A$100,000 of shares at 8.5 cents each.
Q2. Were insiders buying during the latest three months?
Ans. The supplied October review reported no individual insider transactions during that period.
Q3. Will I be buying undervalued shares if I buy below the director’s purchase price?
Ans. No. The prior purchase offers some background, but valuation still depends on the company’s assets, funding needs and outlook.
Q4. What else should shareholders be looking at besides insider transactions?
Ans. Date and terms of transaction, percentage of ownership, cash balances, progress of projects and changes in the number of shares on issue.
Disclaimer:
This article is solely for informational purposes and is not personal financial advice. Transactions and price figures are for the respective reporting periods. Insider buying is not a guarantee of future returns. Investing involves risk of loss.
Luke Carlino is a seasoned Copywriter, Content Strategist, and Social Media Manager specialising in Mining, Finance, and Business journalism. With more than a decade of industry experience, he brings rigorous editorial standards and commercial acuity to every project.
