Former CEO and director of Sirtex Medical Limited charged with insider trading (ASIC, 2018)
Judgment entered
Checked against the primary document on October 4, 2026. The library's summary, tags and figures for this record were compared with the regulator's own document by an AI model (Claude) following written instructions, with sampled and disputed records read a second time. No lawyer has reviewed them. A checked record can still contain errors, and checked does not mean endorsed. See how we check records or report a correction.
In September 2018 ASIC announced that former Sirtex Medical chief executive Gilman Wong was charged with insider trading over a sale of Sirtex shares in October 2016. He pleaded guilty in 2019 and in June 2020 was sentenced to 18 months' imprisonment, released on a $10,000 recognisance for three years, and disqualified from managing corporations for five years.
The record
| Agency | ASIC |
|---|---|
| Release number | 18-288MR |
| Date filed | 2018-09-26 |
| Date resolved | 2020-06-04 |
| Status | judgment |
| Criminal parallel | Yes: sentenced (Wong), Downing Centre District Court, Sydney, 2020-06-04 |
| Sentence | 1y 6m |
| Bars imposed | disqualification from managing corporations |
| Defendants | Gilman Edwin Wong |
| Techniques | Insider trading |
What was ordered
- Civil penalty
- —
- Disgorgement
- —
- Prejudgment interest
- —
- Total relief
- —
- Alleged gain
- —
What is alleged to have happened
the Australian Securities and Investments Commission announced this matter on September 26, 2018 as release 18-288MR. The respondents named are the named respondents.
This library tags the matter as insider trading, based on the conduct the regulator describes. Each tag links to a page explaining how that technique works, what statute it engages, and what penalties comparable actions have attracted. The tagging is ours, not the regulator's: agencies charge statutory provisions, not technique names.
Two later ASIC media releases show how the prosecution ended. On 2 July 2019 Wong pleaded guilty to one charge of insider trading and was committed to the Sydney District Court for sentencing; the proceedings were adjourned several times. ASIC's release 20-127MR says he was sentenced to one year and six months' imprisonment, released immediately on a $10,000 recognisance to be of good behaviour for three years, and, because of the conviction, disqualified from managing corporations for five years. The release is dated 4 June 2020, which is the date recorded here. The sale was of about 74,968 Sirtex shares for about $2.14 million, and ASIC says the price then fell about 49%. The prosecution was brought by the Commonwealth Director of Public Prosecutions, and no fine or pecuniary penalty is stated.
What technique is this, and how does it work?
This action is tagged with one technique in our taxonomy. The tagging is ours: regulators charge statutory provisions, not technique names, so the mapping is an editorial judgement described in our editorial policy.
- Insider trading — see how it works, what statute it engages, and every other action tagged the same way.
Timeline
- 2018-09-26 ASIC media release
- 2019-07-02 Wong pleads guilty to one charge of insider trading and is committed for sentence (release 19-168MR)
- 2020-06-04 Wong sentenced to 18 months, released on recognisance, and disqualified for five years
Primary documents
Everything on this page derives from the documents below. Where our summary and the primary document disagree, the primary document is right.
Same matter
The library links these 3 records because they appear to concern one matter: the same lead defendant, an overlapping technique tag and close filing dates, or a shared court docket or a release that cites the other. Records are listed by date filed.
| Date filed | Agency | Record | Status |
|---|---|---|---|
| 2018-09-26 | ASIC | Former CEO and director of Sirtex Medical Limited charged with insider trading (ASIC, 2018) | Judgment entered |
| 2019-07-03 | ASIC | Former CEO and director of Sirtex Medical Limited pleads guilty to insider trading (ASIC, 2019) | Judgment entered |
| 2020-06-04 | ASIC | Former CEO and director of Sirtex Medical Limited sentenced for insider trading (ASIC, 2020) | Judgment entered |
Related actions
Other actions in the library sharing at least one technique tag with this one.
| Action | Agency | Filed | Technique | Penalty | Status |
|---|---|---|---|---|---|
| SEC v. Trijya Vakil and Neeraj Visen (insider trading, 2026) | SEC | 2026-09-04 | Insider Trading | $109k | settled |
| CFTC v. Gabriel Perez (insider trading, 2026) | CFTC | 2026-08-28 | Insider Trading | $65k | judgment |
| SEC v. Gavin Wolfe and others (insider trading, 2026) | SEC | 2026-08-21 | Insider Trading | — | filed |
| SEC v. Jesse R. Mitchell (insider trading, 2026) | SEC | 2026-08-21 | Insider Trading | — | filed |
| SEC v. Benjamin Tesfaye (insider trading, 2026) | SEC | 2026-08-11 | Insider Trading | $18.7k | settled |
| SEC v. Jamal (“Jimmy”) Chammout and others (insider trading, 2026) | SEC | 2026-07-17 | Insider Trading | $776k | filed |