Former CEO and director of Sirtex Medical Limited sentenced for insider trading (ASIC, 2020)
Judgment entered
Checked against the primary document on October 2, 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 June 2020 former Sirtex Medical chief executive Gilman Wong was sentenced to 18 months' imprisonment, released immediately on a A$10,000 recognisance, and disqualified from managing companies for five years, for selling Sirtex shares in October 2016 while holding inside information.
The record
| Agency | ASIC |
|---|---|
| Release number | 20-127MR |
| Date filed | 2020-06-04 |
| Status | judgment |
| Criminal parallel | Yes: sentenced (Wong), District Court of New South Wales |
| Sentence | 1y 6m |
| 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 the sentence on June 4, 2020 as release 20-127MR.
Wong sold 74,968 Sirtex shares for about A$2.14 million on October 26, 2016 while holding inside information about sales; the shares fell about 49 percent after a December 2016 trading update, and the sale would have fetched about A$1.12 million at the later average price.
He had pleaded guilty. The record previously showed the matter as filed and described it as an allegation.
For the regulator's own account of the facts, read the primary document linked above. This page deliberately summarises the structured record rather than reproducing the release.
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
- 2020-06-04 ASIC media release
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 |