Daily Funding Roundup:
May 28, 2026
Largest private financing in history landed. Anthropic closed $65B Series H at $965B post-money, vaulting past OpenAI as the most valuable private AI company on earth. Co-leads Altimeter, Dragoneer, Greenoaks, and Sequoia each wrote over $2B; $15B in hyperscaler commits alongside ($5B Amazon, Google + Broadcom 5GW TPU, SpaceX GPU). October 2026 IPO confirmed. S&P and Nasdaq closed at fresh records, Snowflake +36.5%. Corgi doubled in three weeks to $2.6B. Asana acquired StackAI for $75M. Autodesk acquired MaintainX for $3.58B.
Rounds
Anthropic closed a $65B Series H at $965B post-money, the largest private financing in history. The round vaults Anthropic past OpenAI ($852B in March) to become the world's most valuable private AI company. Co-leads Altimeter, Dragoneer, Greenoaks, and Sequoia each wrote >$2B. Second-tier co-leads added Capital Group, Coatue, D1, GIC, ICONIQ, and XN. Strategic chip and infra checks from Micron, Samsung, and SK hynix. Alongside the equity round, $15B in committed hyperscaler money: Amazon $5B (plus a 5GW compute agreement), Google and Broadcom committed 5GW of next-gen TPU capacity, and SpaceX provides GPU capacity in Colossus. Run-rate revenue: $47B (up from $10B annualized one year earlier). Anthropic confirmed a confidential S-1 filing for an October 2026 IPO. Released Claude Opus 4.8 the same day. Co-founded 2021 by Dario Amodei (CEO), Daniela Amodei (President), Jack Clark, Jared Kaplan, Sam McCandlish, and Tom Brown, all ex-OpenAI. Total raised since inception: ~$112B+.
New York-based AI-native commercial insurance platform Corgi raised a $106M Series B1 at $2.6B post-money led by TCV, exactly double the $1.3B valuation from three weeks earlier. Y Combinator S24 graduate and profitable as of April 2026. Co-founded 2024 by Nico Laqua (CEO) and Emily Yuan. Total raised: $374M in roughly 18 months.
London and San Francisco-based Orbital Materials raised a $50M Series B led by Plural, with Nvidia's NVentures joining. The company uses AI for materials discovery, currently focused on PFAS-free liquid coolants for data centers. Founded around 2022 by ex-Google DeepMind researcher Jonathan Godwin (CEO). Total raised: $66M.
New York-based Daloopa raised a $47M Series C led by Brighton Park Capital to expand its structured financial data layer for AI in finance. Covers 5,500+ public companies; serves hedge funds, asset managers, and AI labs. Co-founded 2019 by Thomas Li (CEO), Daniel Chen, and Jeremy Huang. Total raised: $100M+.
New York-based oncology AI company Triomics raised a $22M Series B led by Battery Ventures. Powers clinical trial matching and chart abstraction at MSK, MD Anderson, Yale/Smilow, and Mount Sinai Tisch. Co-founded 2021 by Sarim Khan (CEO) and Hrituraj Singh (CTO). Total raised: $37M+.
Denver-based AI-native pre-construction intelligence platform LightTable raised a $22M Series A led by Innovation Endeavors. The platform reads construction drawings to catch design errors across 35+ scopes. Co-founded by CEO Paul Zeckser.
New York-based AI-native pharma marketing agency Solstice raised a $21M Series A led by Transformation Capital. Ingests clinical data and FDA documents to cut drug campaign timelines from 3 months to 10 days and reduce MLR review rounds from 3.2 to 1.2 on average. Founded 2024 by CEO Aris Saxena. Total raised: $25M.
Acquisitions
Asana (NYSE: ASAN) announced the acquisition of New York-based StackAI for $75M, concurrent with its earnings call. StackAI's no-code agentic workflow platform connects Salesforce, Slack, Google Workspace, ERPs, CRMs, and ITSMs. Y Combinator W23. Founders Bernardo Aceituno (CEO), Antoni Rosinol (CTO), and Melissa Forstell join Asana, where CEO Dan Rogers framed the deal as accelerating Asana's pivot to 'the operating system for human-agent teams.'
News & Signals
Anthropic at $965B is the largest private financing in history
The $65B Series H closed at $965B post-money, vaulting Anthropic past OpenAI ($852B from March) as the most valuable private AI company on earth. Brad Gerstner of Altimeter (a co-lead): 'Claude's latest advancements have driven large-scale adoption among the world's most demanding organizations.' Combined with the $15B in hyperscaler commitments ($5B from Amazon plus a 5GW compute agreement, Google + Broadcom 5GW TPU, SpaceX GPU in Colossus), Anthropic raised effectively $80B in cash plus compute in a single window. Anthropic also confirmed its October 2026 IPO target; Wilson Sonsini, the firm that took Google public in 2004, is counsel.
Markets rip into the AI print: S&P and Nasdaq records, Snowflake +36.5%
S&P 500 +0.58% to 7,563.63 record. Nasdaq +0.91% to 26,917.47 record. Snowflake +36.5% (best day ever) on rosy Q2 guide reinforcing the enterprise AI demand thesis. Nvidia bouncing back from Wednesday on its own beat. The double catalyst: post-Memorial Day Anthropic euphoria plus Snowflake's enterprise read. Nvidia alone is now responsible for roughly 20% of the S&P's YTD 9% gain.
Iran framework 'mostly agreed': 60-day MOU pending Trump approval
Per Axios and Al Jazeera, US and Iran are 'mostly agreed' on a 60-day MOU pausing hostilities and reopening the Strait of Hormuz, pending Trump's final approval. Brent finished May down ~19%, the biggest monthly loss since 2020. Brent currently $97.51, up $1.23 on the day on competing reports of US strikes on Iranian drones during negotiations. Bitcoin sold off into the cross-currents, opening $74,332.94, trading in the low $73Ks for most of the morning.
Autodesk acquires MaintainX for $3.58B in cash
Public-market M&A side: Autodesk (NASDAQ: ADSK) announced the acquisition of San Francisco-based maintenance and operations SaaS MaintainX for $3.58B in cash, the biggest tech M&A print of the week aside from Anthropic. MaintainX was founded 2018 and had raised $283M from leads including Bain Capital Ventures. The deal reinforces the picks-and-shovels physical-AI thesis.
AI bubble narrative gets a fresh round of fire
Anthropic at $965B with $47B revenue (~21x) plus Nvidia's >$40B in circular AI equity bets (investing in customers who buy back GPUs) gave AI bears their cleanest week of ammunition. Bulls counter with Nvidia's $97B FCF and Anthropic's $47B ARR growing 4.7x YoY. Brad Gerstner and Dan Loeb publicly defending the math; Jim Chanos and Michael Burry public shorts. Defining macro split of the week: is this the bubble or the platform?
VC Mood on X
May 28 was a one-story day. Anthropic at $965B with $47B run-rate revenue was the only thing VC X talked about from 8am ET until close. Every other deal was a sidebar. Screenshots of the post-money next to OpenAI's $852B (March) crystallized the narrative: the most valuable private AI company on earth is now Anthropic, not OpenAI. Brad Gerstner's Altimeter quote ('Claude's latest advancements have driven large-scale adoption among the world's most demanding organizations') made the rounds for hours. The 'most valuable private company outside SpaceX' framing also took hold. Anthropic confirmed an October 2026 IPO; Wilson Sonsini (Google's 2004 IPO counsel) is on the deal.
The Cognition $1B at $26B from the prior 24 hours kept compounding the AI mega-round euphoria; the Devin ARR ramp ($37M to $492M YoY at +1,230%) was now the canonical 'AI revenue is real' chart. Snowflake +36.5% on the enterprise AI thesis added a public-market datapoint. The picks-and-shovels theme stayed loud: Autodesk acquiring MaintainX at $3.58B and Orbital Materials' Plural-led $50M for data-center cooling AI both fit the same thesis (the physical layer underneath AI is the next moat).
The bear side had its cleanest day in weeks too. Anthropic at ~21x ARR plus Nvidia's $40B+ in circular AI equity bets gave shorts the canvas to paint a dot-com vendor financing analogy. Jim Chanos and Michael Burry are public short. Brad Gerstner and Dan Loeb publicly defending the math. The macro tape stayed risk-on: Brent collapsing to $97 (down 19% for May, biggest monthly loss since 2020), Iran framework 'mostly agreed' per Axios, equities at records. Whether this is the bubble or the platform was the defining VC X split heading into the long weekend.
Rounds and signals sourced from SEC filings, press releases, and verified news reports. All amounts in USD unless noted. Reporting reflects information available at time of publication.