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4.20.26
Wilson Sonsini Advises Slash on $100 Million Series C
On April 16, 2026, Slash Financial, Inc., a banking platform built for modern businesses, announced it has raised $100 million in a Series C funding round, valuing the company at $1.4 billion. The round was led by Ribbit Capital and included Khosla Ventures, Goodwater Capital, New Enterprise Associates, and Y Combinator. This latest funding elevates Slash to unicorn status and brings the total amount of capital raised to over $160 million. Wilson Sonsini Goodrich & Rosati advised Slash on the transaction.
Client Highlights
1.23.26
Wilson Sonsini Advises Brex on $5.15 Billion Acquisition by Capital One
On January 22, 2026, Capital One announced that it has entered into a definitive agreement to acquire Brex, in a combination of stock and cash transaction valued at $5.15 billion. Brex is a modern, AI-native software platform offering intelligent finance solutions that make it easy for businesses to issue corporate cards, automate expense management, and make secure, real-time payments. The transaction is expected to close in the middle of 2026, subject to customary closing conditions. Wilson Sonsini Goodrich & Rosati advised Brex on the transaction.
Client Highlights
12.05.25
Wilson Sonsini Advises Chronosphere on $3.35 Billion Acquisition by Palo Alto Networks
On November 19, 2025, global cybersecurity leader Palo Alto Networks announced that it has entered into a definitive agreement to acquire Chronosphere, a next-generation observability platform built to scale for the AI era, for total consideration of $3.35 billion. Wilson Sonsini Goodrich & Rosati advised Chronosphere on the transaction.
The combination of Chronosphere and Palo Alto Networks’ AgentiX platform will deliver real-time, agentic remediation for the world’s leading AI-native companies and strengthen Palo Alto Networks' ability to help organizations navigate a world where modern applications and AI workloads demand a unified data and security foundation. The acquisition is subject to customary closing conditions, including regulatory approvals, and is expected to close in Palo Alto Networks’ second half of fiscal year 2026.
The Wilson Sonsini team that advised Chronosphere on the acquisition was led by Damien Weiss, Todd Cleary, Jack Hamilton, and Rob Broderick, and also included:
The combination of Chronosphere and Palo Alto Networks’ AgentiX platform will deliver real-time, agentic remediation for the world’s leading AI-native companies and strengthen Palo Alto Networks' ability to help organizations navigate a world where modern applications and AI workloads demand a unified data and security foundation. The acquisition is subject to customary closing conditions, including regulatory approvals, and is expected to close in Palo Alto Networks’ second half of fiscal year 2026.
The Wilson Sonsini team that advised Chronosphere on the acquisition was led by Damien Weiss, Todd Cleary, Jack Hamilton, and Rob Broderick, and also included:
Client Highlights
10.09.25
Wilson Sonsini Advises Base Power on $1 Billion Series C
On October 8, 2025, Base Power, a battery-powered home energy company based in Austin, Texas, announced it raised $1 billion in Series C financing led by Addition. Existing investors that participated include Trust Ventures, Valor Equity Partners, Thrive Capital, Lightspeed, Andreessen Horowitz, Altimeter, StepStone, Elad Gil, 137 Ventures, Terrain, and Waybury. New major investors joining the round are Ribbit, CapitalG, Spark, BOND, Lowercarbon, Avenir, Glade Brook, Positive Sum, and 1789. Wilson Sonsini Goodrich & Rosati advised Base Power on the transaction.
Client Highlights
10.09.25
Wilson Sonsini Advises Reflection AI on $2 Billion Funding Round
On October 9, 2025, Reflection AI, a company developing superintelligent autonomous systems, announced the completion of a $2 billion funding round led by NVIDIA, with participation from Disruptive Technology Advisors, former Google CEO Eric Schmidt, Citi, and DST, as well as existing investors Lightspeed and Sequoia. Wilson Sonsini Goodrich & Rosati advised Reflection AI on the transaction.
Client Highlights
4.25.25
Wilson Sonsini Advises Base Power on $200 Million Series B
On April 8, 2025, Base Power, a battery-powered home energy company based in Austin, Texas, announced the completion of a $200 million Series B round co-led by Addition, Andreessen Horowitz, Lightspeed Venture Partners, and Valor Equity Partners, with participation from existing investors Thrive Capital, Altimeter, Terrain, Trust, and others. Wilson Sonsini Goodrich & Rosati advised Base Power on the transaction.
Client Highlights
8.02.24
Wilson Sonsini Advises Aurora on $483 Million Upsized Public Offering
On August 2, 2024, Aurora Innovation, Inc., a self-driving vehicle technology company, announced the closing of its underwritten upsized public offering for total gross proceeds of approximately $483 million, before deducting underwriting discounts and commissions and other offering expenses. In the public offering, Aurora sold 134,166,667 shares of its Class A common stock at $3.60 per share, which includes the full exercise by the underwriters of their option to purchase up to 17,500,000 additional shares.
Client Highlights
6.13.24
Wilson Sonsini Advises Anterior on $20 Million Series A Funding
On June 10, 2024, Anterior, the AI company built by clinicians to transform healthcare administration, announced the completion of a $20 million Series A funding round. The round was led by New Enterprise Associates (NEA), with participation from Sequoia Capital, Blue Lion Global, and Neo. Wilson Sonsini Goodrich & Rosati advised Anterior on the transaction.
Anterior is on a mission to unlock doctors and nurses from the administrative burden they experience. The company’s first objective is to make prior authorization invisible, like the seamless communication that occurs when a credit card is swiped. Anterior’s technology leverages generative AI to clinically reason, delivering value out of the box, unlike the predictive AI models that have emerged in previous years. The Series A funding will help Anterior accelerate its hiring and growth strategies, ensuring the company continues to recruit and retain world-class talent and that its technology remains cutting-edge.
The Wilson Sonsini team that advised Anterior on the transaction included Damien Weiss, Rob Broderick, and Michelle Mealer.
For more information, please see Anterior’s news release.
Anterior is on a mission to unlock doctors and nurses from the administrative burden they experience. The company’s first objective is to make prior authorization invisible, like the seamless communication that occurs when a credit card is swiped. Anterior’s technology leverages generative AI to clinically reason, delivering value out of the box, unlike the predictive AI models that have emerged in previous years. The Series A funding will help Anterior accelerate its hiring and growth strategies, ensuring the company continues to recruit and retain world-class talent and that its technology remains cutting-edge.
The Wilson Sonsini team that advised Anterior on the transaction included Damien Weiss, Rob Broderick, and Michelle Mealer.
For more information, please see Anterior’s news release.
Client Highlights
1.29.24
Wilson Sonsini Advises Chronosphere on Acquisition of Calyptia
On January 22, 2024, Chronosphere, a leading cloud native observability platform, announced the acquisition of Calyptia, a provider of observability pipeline solutions. With the addition of Calyptia’s leading technology, Chronosphere is taking an important step to ensure that developers have the ultimate control over all their observability data from end to end—including log files to control cost and improve developer productivity. Wilson Sonsini Goodrich & Rosati advised Chronosphere on the transaction.
Client Highlights
1.24.24
Wilson Sonsini Advises Loom on $975 Million Acquisition by Atlassian
On November 30, 2023, Atlassian Corporation, a leading provider of team collaboration and productivity software, announced it has completed the acquisition of video messaging platform Loom for approximately $975 million. Wilson Sonsini Goodrich & Rosati advised Loom on the transaction.
Client Highlights
10.25.23
Wilson Sonsini Advises Texts.com on $50 Million Acquisition by Automattic
On October 24, 2023, WordPress.com and Tumblr owner Automattic announced it has acquired the all-in-one messaging app Texts.com for $50 million. Texts.com brings chats into a single convenient dashboard: iMessage, Slack, WhatsApp, Instagram, Telegram, Messenger, LinkedIn, Signal, Discord, and X, with more services on the way. Automattic explains the acquisition allows the company to move into "a fourth market that's integral to the modern web experience: messaging."
Client Highlights
10.11.23
Wilson Sonsini Advises Cleanlab on $25 Million Series A Funding
On October 10, 2023, Cleanlab, the company behind the automated data curation solution used to increase the dollar value of every data point in enterprise artificial intelligence (AI), large language model (LLM), and analytics solutions, closed $25 million in a Series A financing round co-led by Menlo Ventures and TQ Ventures. Existing investor Bain Capital Ventures (BCV) and new investor Databricks Ventures participated in this funding round, bringing Cleanlab’s total funding to $30 million.