Atlassian Co-Founder’s Investment Firm Sues Former Executive Amidst Personal Turmoil
Legal proceedings have been initiated by Cannon-Brookes Services, the investment vehicle of Atlassian co-founder Mike Cannon-Brookes, against a former executive, Kevin Chiu. The lawsuit centres on allegations of leaking hundreds of confidential company documents, including sensitive employee human resources information, during the acrimonious breakdown of Mike and Annie Cannon-Brookes’ marriage.
The legal action, filed in the Supreme Court of New South Wales, claims that Mr. Chiu, who served as the group financial controller and company secretary for Cannon-Brookes Services until February of last year, became embroiled in the fallout of the couple’s separation in July 2023, following 13 years of marriage.
According to the statement of claim, Mr. Chiu is accused of divulging a substantial volume of confidential material to Ms. Cannon-Brookes. This alleged breach occurred during the period of marital discord.
However, Mr. Chiu has not shied away from the allegations, admitting to downloading 966 files. Crucially, his defence asserts that Ms. Cannon-Brookes instructed him to undertake this action, and that he was merely fulfilling his job responsibilities.
Key Allegations in the Lawsuit:
November 14, 2024: It is alleged that Mr. Chiu downloaded a comprehensive suite of employment-related documents. This included, but was not limited to:
- Employment contracts
- Remuneration and bonus structures
- Resumes and curriculum vitae
- Tax and superannuation records
- Medical certificates
- Visa and police check details
- Minutes from committee meetings
December 20, 2024, to January 10, 2025: The company alleges that Mr. Chiu shared these so-called ‘HR Files’ with Ms. Cannon-Brookes and a former chief financial officer of CBC, Catherine Manuel.
Further Leaks: Beyond HR information, Cannon-Brookes Services also accuses Mr. Chiu of leaking financial documents to Ms. Manuel. These reportedly included invoices, bank statements, US tax details pertaining to sports team investments made by Cannon-Brookes Entertainment Group, and financial dealings with Grok Investments.
Mr. Chiu has vehemently denied the central claims of unauthorised disclosure, maintaining that providing access to Ms. Cannon-Brookes was a legitimate aspect of his professional duties.
Employment and Termination
The statement of claim outlines Mr. Chiu’s employment with Cannon-Brookes Services, which commenced on May 18, 2020, and concluded on February 4 of the previous year. The company contends that Mr. Chiu violated his employment contract, which stipulated strict confidentiality regarding company information, its use solely for official duties, and a prohibition on actions that could harm the company, its officers, employees, or ‘the Family’.
Furthermore, Mr. Chiu is accused of breaching his statutory duty under the Corporations Act. This legislation prohibits company officers from improperly utilising confidential information for personal gain or to the detriment of the organisation.
The situation escalated on February 4 of last year during a meeting with the new Chief Financial Officer, Faris Cosic. It is alleged that Mr. Chiu confessed to the HR file conduct during this discussion. Following this admission, the company issued a ‘Deliver Up Direction’, demanding the return of all company devices and access credentials. Mr. Chiu reportedly refused this directive via text message.
Consequently, Mr. Chiu’s employment was terminated on February 4 last year. Cannon-Brookes Services formally initiated legal proceedings against him on February 18, seeking damages and indemnity costs for the alleged breaches. Mr. Chiu, in turn, has filed a counter-claim for financial compensation stemming from interim court orders.
Financial Context and Atlassian’s Market Performance
This high-profile legal dispute unfolds against a backdrop of significant financial news for Atlassian. Recently, the company’s share price on the NASDAQ experienced a notable decline, reportedly falling by eight per cent. This downturn coincided with the unveiling of new artificial intelligence (AI) tools by competitors, which are seen as posing a challenge to Atlassian’s core business software products.
The share price dipped to US$68.17 (approximately AU$97.43), a considerable drop from its 52-week peak of US$242 (approximately AU$345.88). This market reaction followed announcements from tech giants like Amazon and the San Francisco-based company Anthropic regarding substantial advancements in their respective AI offerings. The market’s response underscores the competitive landscape in the technology sector and the ongoing innovation in AI development.
A Glimpse into the Cannon-Brookes’ Lifestyle
The legal proceedings and the recent financial news offer a stark contrast to the public image of Mike Cannon-Brookes, a figure once known for his effusive public declarations of affection. In 2009, he publicly announced his engagement to Annie Galea (now Annie Cannon-Brookes) via Twitter, describing her as “gorgeous.” The couple married in 2010 and, over the years, amassed an impressive property portfolio valued at nearly $300 million, as Mr. Cannon-Brookes’ wealth grew.
Among their most significant acquisitions was Fairwater, a sprawling 1.1-hectare estate in the exclusive Sydney harbourside suburb of Point Piper. This property, formerly owned by the late Lady Mary Fairfax, was purchased in 2018 for a reported $100 million, making it the most expensive residential property in Australia at the time. Mr. Cannon-Brookes expressed a desire to raise their four children in the historic residence, envisioning a home filled with “love and laughter.” The couple also maintained other substantial properties, including a $14.25 million home in Newport on Sydney’s northern beaches, adjacent to a $24.5 million estate acquired in the same area in 2020. Their property interests extended to a $2.55 million fisherman’s cottage at Great Mackerel Beach, accessible only by boat.
