I'm unsure if this is exactly true. ptongwon.
ASX Listing Rules & Insider Trading (Key Points)1. Insider Trading is Prohibited at All Times
Under Australian law (Corporations Act 2001), it is illegal for a director to:
Buy or sell company securities while in possession of material nonpublicinformation.
Information is considered “material” if a reasonable person would expect it to affect the share price.
Even before a formal announcement, if a director knows somethingprice-sensitive, they must not trade.
⏳ 2. No Trading Before a Significant Announcement
A director must not buy shares before a significant (market-sensitive) announcement unlessthe information is already public.
ASX doesn’t impose a specific cooling-off orwaiting period, but best practice is:
Wait until after the announcement is released to the market (via ASX platform).
Wait at least 24–48 hours post-announcement forthe market to digest the news.
️ 3. Blackout Periods (Trading Windows) – Common in ASX Companies
Most ASX-listed companies adopt their own Share Trading Policies, which:
Prohibit directors from trading during “blackout periods”, usually:
30 days before financial results (half-year and full-year).
Sometimes before other price-sensitive events (e.g. AGM, capital raising).
Allow trading in open windows, e.g.:
For a few weeks, from 24–48 hours after results are announced.
4. Director Disclosure Obligations
Under ASX Listing Rule 3.19A ands205G of the Corporations Act, a director must notify the ASX within 5 business daysafter a change in their holdings.
The company must lodge this notice (Appendix 3Y) with the ASX.
✅ Summary: Director Buying Before Announcement (ASX)
Scenario Legal? Risk Level 1 Buying while knowing ofpending good news ❌ Illegal High 2 Buying during the blackout period ❌ Against policy High 3 Buying just before the announcement (but no inside info) ⚠️ Risky/Discouraged Moderate to High 4 Buying after the announcement, during the open window ✅ Allowed Low
- Forums
- ASX - By Stock
- SMN
- Ann: Change of Director's Interest Notice
SMN
structural monitoring systems plc
Add to My Watchlist
1.89%
!
54.0¢

Ann: Change of Director's Interest Notice, page-6
Featured News
Add to My Watchlist
What is My Watchlist?
A personalised tool to help users track selected stocks. Delivering real-time notifications on price updates, announcements, and performance stats on each to help make informed investment decisions.
|
|||||
Last
54.0¢ |
Change
0.010(1.89%) |
Mkt cap ! $83.37M |
Open | High | Low | Value | Volume |
52.0¢ | 55.5¢ | 52.0¢ | $70.35K | 128.3K |
Buyers (Bids)
No. | Vol. | Price($) |
---|---|---|
1 | 10000 | 53.0¢ |
Sellers (Offers)
Price($) | Vol. | No. |
---|---|---|
55.0¢ | 25467 | 1 |
View Market Depth
No. | Vol. | Price($) |
---|---|---|
1 | 10000 | 0.530 |
1 | 5949 | 0.520 |
1 | 20000 | 0.515 |
4 | 17250 | 0.510 |
3 | 11750 | 0.500 |
Price($) | Vol. | No. |
---|---|---|
0.550 | 25467 | 1 |
0.570 | 7819 | 1 |
0.575 | 4999 | 1 |
0.580 | 4853 | 1 |
0.585 | 12008 | 1 |
Last trade - 15.49pm 01/08/2025 (20 minute delay) ? |
Featured News
SMN (ASX) Chart |
The Watchlist
RC1
REDCASTLE RESOURCES LIMITED
Ron Miller, Non-Executive Director
Ron Miller
Non-Executive Director
Previous Video
Next Video
SPONSORED BY The Market Online