POET Technologies Faces Legal Scrutiny After Marvell Cancels $1B+ in Orders, Stock Plummets
San Francisco — POET Technologies, a leading designer and manufacturer of optical engines for artificial intelligence (AI) and high-speed networking, is under legal and financial fire after Marvell Technology Group abruptly canceled all outstanding purchase orders tied to its former customer, Celestial AI. The move sent POET’s stock into a tailspin, erasing nearly half its market value in a single trading session and triggering investigations by three separate law firms into potential securities violations.
On Monday, April 27, 2026, POET’s shares plunged as much as 48.2% intraday, dropping from a high near $15.50 to a low of $7.65 before recovering slightly to close at $8.12. The sell-off wiped out approximately $1.09 billion in market capitalization, according to filings with the U.S. Securities and Exchange Commission (SEC). Trading volume surged to 7.6 times the daily average, reflecting the market’s shock at the sudden collapse of what had been one of POET’s most high-profile partnerships.
The cancellation stems from Marvell’s acquisition of Celestial AI earlier this year. Celestial, a startup specializing in optical interconnects for AI data centers, had been a key POET customer, with initial production orders announced in April 2023. However, Marvell terminated all outstanding orders on April 23, citing alleged breaches of confidentiality obligations by POET. Specifically, Marvell accused POET’s Chief Financial Officer, Thomas Mika, of publicly disclosing details about the purchase orders and shipping information during a recent rally in the company’s stock price.
POET has not publicly disputed the cancellation but has denied any wrongdoing. In a statement released on April 27, the company said it is “reviewing the notice from Marvell and evaluating its options,” while emphasizing its commitment to “executing its strategic priorities and advancing product development within the AI and optical networking markets.” The company likewise noted that it continues to fulfill orders for other customers, including a recently disclosed $5 million purchase agreement with an unnamed technology firm.
Legal Firms Launch Investigations Into Potential Securities Violations
The stock collapse has drawn the attention of three prominent law firms specializing in securities litigation: Block & Leviton, Pomerantz LLP, and The Rosen Law Firm. Each firm has announced formal investigations into whether POET Technologies and its executives violated U.S. Securities laws by allegedly making misleading statements or omitting material information about the status of its relationship with Marvell and Celestial AI.
Block & Leviton, which initiated its probe on April 27, is focusing on whether POET’s public disclosures prior to the cancellation were “materially false or misleading,” according to a press release. The firm is particularly interested in statements made by POET’s leadership during the company’s recent stock rally, which saw shares surge by more than 50% in the week leading up to the cancellation. The law firm is inviting investors who purchased POET stock between January 1, 2026, and April 26, 2026, to contact them for potential legal action.
Pomerantz LLP and The Rosen Law Firm have similarly launched investigations, with Pomerantz stating that it is examining whether POET’s board of directors breached its fiduciary duties to shareholders. The Rosen Law Firm, which has a history of pursuing class-action lawsuits in the tech sector, is urging investors who suffered losses of $100,000 or more to come forward.
Legal experts say the investigations could take months to resolve, depending on whether POET’s disclosures are found to have violated SEC rules. “If the allegations hold up, this could be a textbook case of a company failing to properly disclose risks to investors,” said Sarah Chen, a securities attorney at Wilson Sonsini Goodrich & Rosati, in an interview with Reuters. “The timing of the stock rally and the subsequent cancellation will be critical factors in any legal proceedings.”
What Triggered the Cancellation? Confidentiality Breach Allegations
At the heart of Marvell’s decision to cancel the orders is an alleged breach of confidentiality. According to Marvell’s written notice to POET, the company claims that POET’s CFO, Thomas Mika, publicly confirmed details about the purchase orders and shipping timelines during a period of heightened investor interest. While neither Marvell nor POET has released the exact statements in question, industry observers speculate that Mika’s comments may have been made during investor calls or media interviews in early April.
Confidentiality clauses are common in semiconductor and optical networking contracts, particularly when dealing with cutting-edge AI hardware. These clauses are designed to protect sensitive information about supply chains, production volumes, and customer relationships from being disclosed to competitors or the public. Violations can result in severe penalties, including contract terminations and legal action.
POET has not directly addressed the allegations of confidentiality breaches in its public statements. However, the company’s legal team is likely preparing a defense, as the outcome of this dispute could have significant implications for its business. “If POET is found to have violated its confidentiality agreements, it could face not only the loss of Marvell’s business but also reputational damage that might deter other potential customers,” said Mark Li, a senior analyst at Bernstein Research, in a note to clients.
Market Reaction and POET’s Path Forward
The stock market’s reaction to the cancellation was swift, and brutal. POET’s shares, which had been trading at multi-year highs in the days leading up to the announcement, collapsed by nearly half in a single day. The sell-off was exacerbated by the fact that the cancellation affected not only future orders but also initial production units that had been in the pipeline since April 2023.
In an attempt to stabilize the situation, POET’s management issued a statement on April 27 outlining its plans to mitigate the impact of the cancellation. The company emphasized that it remains focused on its long-term strategy, including the development of next-generation optical engines for AI data centers and high-performance computing. POET also highlighted its ongoing relationships with other customers, including the $5 million purchase order announced earlier this month.
However, analysts remain skeptical about POET’s near-term prospects. “The loss of Marvell’s business is a significant blow, especially given the strategic importance of Celestial AI’s technology,” said Lisa Su, an analyst at Needham & Company, in a research note. “POET will require to quickly secure latest customers to offset this loss, and that won’t be easy in a competitive market.”
POET’s financial health has also come under scrutiny. The company reported a net loss of $24.5 million for the fiscal year 2025, according to its most recent SEC filing. While the company has sufficient cash reserves to continue operations in the short term, the loss of Marvell’s orders could strain its ability to fund research and development for future products.
What Happens Next? Legal and Financial Implications
The coming weeks will be critical for POET Technologies as it navigates the fallout from the cancellation and the ongoing legal investigations. Here’s what to watch for:
- Legal Proceedings: The three law firms investigating POET are likely to file class-action lawsuits if they find evidence of securities violations. These lawsuits could take months or even years to resolve, depending on whether the cases are settled out of court or proceed to trial.
- Regulatory Scrutiny: The SEC may also launch its own investigation into POET’s disclosures, particularly if the agency suspects that the company failed to adequately inform investors about the risks associated with its relationship with Marvell. SEC investigations can result in fines, penalties, or other enforcement actions.
- Customer Relationships: POET will need to perform quickly to reassure its remaining customers and secure new business to offset the loss of Marvell’s orders. The company’s ability to do so will be a key factor in determining its long-term viability.
- Stock Market Recovery: POET’s stock price may remain volatile in the near term as investors digest the news and await further developments. Analysts say the company’s ability to demonstrate progress in securing new customers will be critical to restoring investor confidence.
For now, POET’s management is urging investors to remain patient. “We are evaluating all available options to address this situation and will provide updates as appropriate,” the company said in its April 27 statement. “Our focus remains on delivering innovative solutions to our customers and creating long-term value for our shareholders.”
Key Takeaways for Investors and Industry Observers
- Stock Collapse: POET’s shares fell by as much as 48.2% on April 27, 2026, wiping out over $1 billion in market value in a single trading session.
- Marvell’s Cancellation: Marvell Technology Group canceled all outstanding purchase orders tied to Celestial AI, citing alleged breaches of confidentiality by POET’s CFO, Thomas Mika.
- Legal Investigations: Three law firms—Block & Leviton, Pomerantz LLP, and The Rosen Law Firm—have launched investigations into potential securities violations by POET and its executives.
- Financial Impact: The cancellation affects initial production units announced in April 2023, dealing a significant blow to POET’s revenue pipeline.
- Path Forward: POET is focusing on securing new customers and advancing its product development in the AI and optical networking markets.
What Which means for the Tech Industry
The POET Technologies saga serves as a cautionary tale for companies operating in the fast-paced and highly competitive AI and semiconductor industries. Confidentiality agreements are a cornerstone of business relationships in these sectors, and even minor breaches can have severe consequences. The case also highlights the risks associated with rapid stock price movements, particularly when they are driven by speculative investor interest rather than fundamental business developments.
For POET, the road ahead will be challenging. The company must not only address the legal and financial fallout from the cancellation but also rebuild trust with investors and customers. Success will depend on its ability to demonstrate resilience and adaptability in an industry where technological leadership is constantly evolving.
Next Steps: What to Watch For
Investors and industry observers should keep an eye on the following developments in the coming weeks:
- April 30, 2026: POET is expected to file its quarterly report with the SEC, which may provide additional details about the financial impact of the cancellation.
- May 15, 2026: The first potential deadline for the law firms investigating POET to file class-action lawsuits, if they determine that sufficient evidence exists.
- June 2026: POET’s next earnings call, where management is likely to address the cancellation and its plans for moving forward.
For now, the story remains fluid, and stakeholders will be watching closely to witness how POET navigates this crisis. As the legal and financial implications unfold, one thing is clear: the company’s ability to adapt and innovate will be critical to its survival in an increasingly competitive market.
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