Sigma Lithium Sues Ex-CEO As Messy Divorce Complicates Firm’s Buyout Outlook

Sigma Lithium (TSXV: SGML) has taken legal action by filing a lawsuit against its former co-chief executive officer. The company claims that the ex-executive stole valuable trade secrets with the intention of undermining Sigma’s efforts to sell itself.

This lawsuit, filed recently in a federal court in Manhattan, sheds light on a dispute involving Calvyn Gardner, the former co-CEO, and Ana Cabral-Gardner, his divorcing co-CEO who remains at the helm of the company. Even Gardner’s daughter-in-law, Luisa Valim, is implicated in the alleged misconduct.

Following the news, the firm’s shares dropped around 3.6% on the day.

Sigma Lithium, headquartered in Vancouver, Canada, and primarily operating in Brazil, commands a substantial market value of approximately $5.07 billion. The lawsuit asserts that Cabral-Gardner and Gardner jointly control a significant stake of 44% in the company through their fund, A10 Investimentos. Within this partnership, Cabral-Gardner possesses a 76% share, while Gardner holds a 24% share.

The lawsuit contends that Valim, seeking to manipulate her father-in-law’s position in the divorce proceedings, devised a plan to pilfer proprietary information. The goal was both to gain favor with Gardner and exact revenge.

The lawsuit further states that shortly after Valim’s departure from Sigma in May, she managed to access and share around 80,000 confidential documents from a secured data room. Bank of America, which was facilitating discussions with potential buyers for Sigma, had organized access to this room.

Bank of America declined to comment on the ongoing legal matter.

The documents Valim allegedly misappropriated contained crucial industrial and mining insights that underpinned Sigma’s competitive edge in the lithium mining and processing sector. The company characterizes these documents as its “secret sauce” that sets it apart from its rivals.

Sigma contends that Gardner and Valim’s actions were deliberately aimed at disrupting any potential buyout. A key piece of evidence cited is Valim’s reported claim to an A10 partner during a flight on July 1 that their scheme had effectively terminated the merger and acquisition process.

Sigma’s lawsuit seeks unspecified damages and the return of the misappropriated property. Cabral-Gardner emphasized in a recent interview on July 28 that Sigma is focused on enhancing its distinct environmentally competitive stance within the global supply chain.


Information for this briefing was found via Reuters and the sources mentioned. The author has no securities or affiliations related to this organization. Not a recommendation to buy or sell. Always do additional research and consult a professional before purchasing a security. The author holds no licenses.

Video Articles

Why Silver Needs to Slow Down to Go Higher | Dan Dickson – Endeavour Silver

Silver Dips Are Getting Bought, This Is How Breakouts Start | John Feneck

Why $100 Silver Right Now Would Be a Problem | Keith Neumeyer – First Majestic

Recommended

Mercado Begins Field Exploration At Copalito In Advance Of Planned Drill Program

Antimony Resources Drills 8.48% Sb Over 3 Metres, 2.07% Sb Over 27 Metres At Bald Hill

Related News

Sigma Lithium To Proceed With 250,000 tpy Expansion, Delays Financial Results

Sigma Lithium (TSXV: SGML) has made the final decision to double its production capacity of...

Monday, April 1, 2024, 09:29:28 AM

Millennial Lithium Bidding War Reads Well For Peers

On September 8, Millennial Lithium Corp. (TSXV: ML) announced that it received an unsolicited takeover...

Saturday, September 18, 2021, 09:00:00 AM

Sigma Lithium Said To Be In Discussions With Tesla For Buyout

Sigma Lithium (TSXV: SGMA) appears to be the latest target in the lithium space, with...

Friday, February 17, 2023, 05:32:45 PM

Sigma Lithium Reports A “Potential” Resource Expansion

Sigma Lithium (TSXV: SMGL) is reporting that it could “potentially” expand its mineral resource estimate...

Thursday, November 2, 2023, 06:46:00 AM

Sigma Lithium Widens Net Loss On Revenue Decline In Q2 2025

Sigma Lithium (TSXV: SGML) reported its Q2 2025 results, with net sales revenue declining to...

Friday, August 15, 2025, 02:17:00 PM