The venture capital firm that led Formation Bio’s $372M Series D, placed its first employee on the Formation Bio board, invested in ALL FOUR competing AI labs simultaneously, sent three alumni into the Trump administration, spent $3.5M+ in federal lobbying, and absorbed 18% of all US venture dollars in 2025 — while its partners shape the regulatory environment their portfolio companies operate in.
Bio
Andreessen Horowitz (commonly known as a16z) is a venture capital firm co-founded in 2009 by Marc Andreessen (co-creator of the Netscape web browser, co-founder of Ning, board member of Meta/Facebook) and Ben Horowitz (former CEO of Opsware/Loudcloud). Headquartered in Menlo Park, California, a16z manages over $35 billion in assets and has invested in over 1,100 companies — including Facebook/Meta, Airbnb, GitHub, Coinbase, Stripe, Slack, Roblox, and OpenAI. [1][2]
Andreessen’s 2011 Wall Street Journal essay “Why Software Is Eating the World” defined the firm’s investment thesis and became one of the most cited pieces in venture capital history. The firm pioneered the model of VC-as-platform — providing portfolio companies not just capital but marketing, recruiting, regulatory, and media support through an in-house team of operators. [1]
In January 2026, a16z raised $15 billion in new funds — its largest haul to date — and claimed to have raised 18% of all venture capital dollars invested in the US in 2025. Combined with Thrive Capital, the two firms absorbed 52.8% of all new VC fund money nationally in Q1 2026. [3]
In this investigation, a16z’s significance is threefold: (1) it led Formation Bio’s $372M Series D and placed Scott Kupor on the Formation Bio board, (2) it is invested in ALL FOUR competing flagship AI companies simultaneously (OpenAI, xAI, SSI, Thinking Machines Lab), and (3) three a16z alumni now hold positions in the Trump administration, including Kupor as Director of the Office of Personnel Management — the agency that manages the entire federal civilian workforce.
Basic Information
| Field | Detail |
|---|---|
| Name | Andreessen Horowitz (a16z) |
| Founded | 2009 |
| Founders | Marc Andreessen, Ben Horowitz |
| HQ | Menlo Park, California. Additional offices in San Francisco, New York, Miami, London, Seoul (opened December 2025). |
| AUM | $35B+ (2025); raised $15B in January 2026 [3] |
| Portfolio | 1,100+ companies, 124+ unicorns, 35+ IPOs |
| Structure | Registered Investment Adviser (since 2022). Multiple fund strategies: venture, growth, bio, crypto, American Dynamism (defense/industrial), infrastructure. |
| First Employee | Scott Kupor (Managing Partner → Trump OPM Director nominee, April 2025) [4] |
| Website | a16z.com |
Key Personnel (Network-Relevant)
| Person | a16z Role | Network Significance |
|---|---|---|
| Marc Andreessen | Co-founder, General Partner | Netscape co-creator. Meta board member. Donated $2.5M to Trump 2024. Met Trump at Mar-a-Lago. Obama donor turned Republican. [5] |
| Ben Horowitz | Co-founder, General Partner | “Nonpartisan, one-issue voters.” $7M to pro-Trump Right for America PAC (2024). [5] |
| Scott Kupor | First employee. Managing Partner → Resigned April 2025 for Trump OPM nomination. Was on Formation Bio board. | Formation Bio board member → Director of Office of Personnel Management (federal workforce). Resigned from 32 a16z funds, kept passive stake in 38. [4] |
| Sriram Krishnan | Former a16z partner | Senior White House AI policy advisor under Trump. Shapes the AI regulatory environment a16z portfolio companies operate in. [4] |
| David Sacks | Craft Ventures (allied, not a16z employee) | White House AI and Crypto czar. Craft Ventures in same ideological ecosystem as a16z. PayPal Mafia. [4] |
| Anne Neuberger | Joined a16z as Senior Advisor (2025) | Former Deputy National Security Advisor. Focus: “American Dynamism, AI, and cyber.” Government → VC revolving door. [6] |
The Four-Lab Hedge
a16z is simultaneously invested in ALL FOUR major competing AI companies:
| AI Company | Founder(s) | Relationship to Altman | a16z Investment |
|---|---|---|---|
| OpenAI | Altman, Brockman | Altman is CEO | Multiple rounds since 2019 [7] |
| xAI (Grok) | Elon Musk | Musk is suing Altman (Musk v. Altman trial May 2026) | Major investor alongside Sequoia [7] |
| SSI (Safe Superintelligence) | Ilya Sutskever | Sutskever left OpenAI after voting to fire Altman | Early investor [7] |
| Thinking Machines Lab | Mira Murati | Murati was OpenAI CTO, departed Oct 2024 | Led $2B pre-product round [7] |
a16z is financially hedged across every possible outcome of the AI competition. If OpenAI wins, a16z profits. If Musk’s xAI wins, a16z profits. If Sutskever’s safety-focused lab wins, a16z profits. If Murati’s breakaway succeeds, a16z profits. The firm has zero financial incentive to see any of these companies destroy the others — regardless of its public positioning on AI safety, competition, or governance.
When a16z lobbies for AI deregulation, it is lobbying for a regulatory environment that benefits ALL FOUR of its competing AI investments simultaneously.
Formation Bio: The Board Seat and the OPM Director
a16z led Formation Bio’s $372M Series D (June 2024). Scott Kupor, a16z’s first employee and managing partner, joined the Formation Bio board. [4][8]
In April 2025, Kupor was nominated by President Trump to serve as Director of the Office of Personnel Management — the federal agency that manages 2.1 million civilian employees across the entire US government. As part of his confirmation process, Kupor: [4]
- Resigned as managing partner from a16z
- Gave up his managing member seat in 32 a16z funds (including bio and seed funds)
- Maintained passive stakes in 38 other funds
- Resigned from the Formation Bio board
- Also resigned from boards at Talkiatry, Pearl Health, Foursquare, Alice Walton’s Heartland Whole Health Institute, and St. Jude Children’s Research Hospital
The significance: The person who sat on Formation Bio’s board — a company that uses AI to develop pharmaceutical drugs, runs clinical trials, and partners with OpenAI and Sanofi — was appointed to run the federal government’s personnel management operation. He retains passive financial interest in 38 a16z funds. If any of those funds hold positions in companies that interact with federal agencies (FDA for drug approvals, NIH for grants, DOD for defense contracts), Kupor’s passive financial interest creates a structural conflict with his government role.
Political and Lobbying Activity
Lobbying Expenditures
| Year | Amount | Focus Areas |
|---|---|---|
| 2023 | $950,000 | Cryptocurrency legislation. Defense procurement (NDAA added Q3 2023 — first explicit defense lobbying). |
| 2024 | $1,800,000 | Cryptocurrency, AI regulation, digital assets. Also: $70M to crypto PACs (Fairshake). $7M to pro-Trump Right for America PAC. |
| 2025 | $3,530,000 | AI regulation, cryptocurrency, defense, American Innovators Network (state-level AI opposition). |
Electoral Spending (2024 cycle)
| Recipient | Amount | Purpose |
|---|---|---|
| Trump 2024 campaign (Marc Andreessen) | $2,500,000 | Met Trump at Mar-a-Lago multiple times |
| Right for America PAC (Horowitz) | $7,000,000 | Pro-Trump Super PAC |
| Fairshake and affiliated crypto PACs | ~$70,000,000 | Cryptocurrency-friendly candidates |
Administration Placements
| Person | a16z Connection | Government Role |
|---|---|---|
| Scott Kupor | First employee, Managing Partner, Formation Bio board | Director, Office of Personnel Management [4] |
| Sriram Krishnan | Former a16z partner | Senior White House AI policy advisor [4] |
| David Sacks | Craft Ventures (allied firm) | White House AI and Crypto czar |
| Anne Neuberger | Joined a16z as Senior Advisor | Former Deputy National Security Advisor (reversed: government → a16z) [6] |
The regulatory environment for AI, cryptocurrency, defense technology, and pharmaceutical development is being shaped by people who came from or went to a16z. The firm is not just lobbying the government — it has placed partners inside the government.
Portfolio Overlaps with the Altman Network
| Company | a16z Investment | Altman Connection | Overlap Type |
|---|---|---|---|
| Formation Bio | Led $372M Series D. Kupor on board. | $19M personal stake. OpenResearch $1M grant. OpenAI/Muse partnership. | Board + investment + nonprofit + AI partnership |
| OpenAI | Multiple rounds investor | Altman is CEO | Direct investment in Altman’s company |
| Airbnb | Series B ($60M, 2011) | Personal investor. McAdoo/Sequoia seed. | YC pipeline company |
| Stripe | Various (2014+) | $633M personal stake (trial exhibit) | Payment infrastructure |
| Coinbase | Series B (2013) | — | Crypto platform |
| Limitless | $33M Series A | Altman personally co-invested with a16z and NEA | Three-way direct overlap: a16z + NEA + Altman |
| Substack | Investor | — | Media platform (media ecosystem) |
| Anduril | Series D (2021) | Defense tech — intersects with Altman’s nuclear/energy portfolio | Defense/national security |
| Boom Supersonic | Participant in Dec 2024 down round | Altman on board. McAdoo on board. Moritz personal investor. | a16z joining Altman-network down round |
Investigative Findings
Finding 1: The All-Sides Investment Strategy
a16z’s simultaneous investment in OpenAI, xAI, SSI, and Thinking Machines Lab is not an analytical observation — it is a documented financial structure. [7] The firm profits regardless of which AI company prevails. This eliminates any financial incentive a16z might have to advocate for competitive markets, meaningful safety regulation, or accountability for any individual AI company. Every dollar spent on AI lobbying serves all four investments equally.
Finding 2: The Kupor-Formation Bio-OPM Pipeline
Scott Kupor went from a16z Managing Partner → Formation Bio board member → Trump’s Director of OPM. [4] The Office of Personnel Management controls federal hiring, compensation, benefits, and workforce policy for 2.1 million employees. Kupor retains passive interest in 38 a16z funds. If those funds hold positions in companies with federal contracts, grants, or regulatory interactions, the conflict is structural — not theoretical.
The precedent: this is the same pattern documented across the Altman network. Altman on OpenAI board and Green Dot board simultaneously. Moritz on Green Dot board and Loopt board simultaneously. Doerr potentially on both sides of the Muse platform. Now Kupor: Formation Bio board → federal personnel management. The actors change; the structural pattern of moving between private governance and public authority repeats.
Finding 3: The Media Ecosystem
a16z has developed a media apparatus that shapes public discourse about its portfolio companies and investment theses:
- a16z blog/podcast — one of the most influential tech media properties, producing content that frames AI development, crypto regulation, and defense technology in terms favorable to a16z’s portfolio
- Substack — a16z portfolio company. The publishing platform used by many tech commentators and journalists.
- “American Dynamism” — a16z’s branded investment thesis for defense, industrial, and government technology. Positions defense-tech investment as patriotic rather than profit-seeking.
- American Innovators Network — a16z-backed state-level lobbying operation opposing AI regulation [6]
This media infrastructure means a16z doesn’t just invest in companies — it shapes the narrative environment those companies operate in. The firm that lobbied against AI regulation also produced the most-consumed content explaining why AI regulation is unnecessary.
Finding 4: The Concentration of Capital
In Q1 2026, a16z and Thrive Capital together absorbed 52.8% of all new VC fund money nationally. [7] Two firms — one of which led the Formation Bio round, the other of which has Kushner’s representative on the Formation Bio board — control more than half of all new venture capital in the United States. OpenAI and Anthropic accounted for 57% of all startup capital raised nationally in the same period.
This level of capital concentration means the investment decisions of two firms determine which companies get funded and which don’t — across AI, healthcare, defense, crypto, and every other venture-backed sector. The competitive market that theoretically disciplines VC investment behavior is being replaced by an oligopoly.
Finding 5: Playing Both Sides of the Musk-Altman Conflict
a16z invested in both OpenAI (Altman’s company) and xAI (Musk’s company, which is suing Altman). [7] The firm is financially positioned on both sides of the most significant AI industry lawsuit in history (Musk v. Altman, trial May 2026). Regardless of the trial outcome, a16z retains value on both sides. This means a16z has zero financial incentive to support one party’s claims over the other — the firm benefits from the conflict continuing (increased media attention, regulatory attention, and public interest in AI) more than from either party winning decisively.
Nodes / Open Questions
- What are the 38 a16z funds Kupor retains passive interest in? Do any of them hold positions in companies that interact with OPM, FDA, NIH, DOD, or other agencies Kupor now oversees or coordinates with?
- The a16z Bio fund: a16z has a dedicated healthcare/bio fund. What is its full portfolio? How many companies overlap with Formation Bio’s drug development pipeline, clinical trial infrastructure, or Sanofi partnership?
- Andreessen’s Meta board seat: Marc Andreessen sits on Meta’s board. Meta is developing AI (LLaMA) that competes with OpenAI. Andreessen is simultaneously on Meta’s board and invested in OpenAI (and xAI and SSI). How many competing AI investments can one person hold before the conflicts become unmanageable?
- The American Innovators Network: What state-level AI regulation has a16z’s lobbying operation successfully opposed? What would those regulations have required?
- a16z Seoul office (December 2025): First Asian office. Does this position a16z for cross-border AI/pharma investments in South Korea’s biotech sector? Any overlap with Formation Bio’s existing drug sourcing from Asian markets (Lynk Pharmaceuticals/China)?
- The $70M crypto PAC spending: What specific regulatory outcomes did this spending achieve? Did any crypto-favorable legislation directly benefit a16z portfolio companies (Coinbase, etc.)?
- Anne Neuberger’s reverse revolving door: Former Deputy National Security Advisor joins a16z as senior advisor for “American Dynamism, AI, and cyber.” What classified information or government relationships does she bring? How does this compare to the Keith Alexander (NSA → IronNet → OpenAI Safety Committee) pipeline?
PASS 2 — Alignment/Opposition Timeline and Media Ecosystem
The Altman Alignment Arc
a16z’s relationship with Altman and OpenAI has evolved through distinct phases — from investor to ideological ally to both-sides hedger:
| Date | Event | a16z Position | Alignment |
|---|---|---|---|
| 2019 | a16z invests in OpenAI | Financial supporter | ALIGNED |
| Jun 2023 | Andreessen publishes “Why AI Will Save the World” | Calls AI safety critics a “moral panic.” Frames AI regulation as existential threat to progress. | ALIGNED — anti-regulation stance benefits OpenAI’s commercial velocity |
| Oct 16, 2023 | Andreessen publishes “Techno-Optimist Manifesto” (5,200 words) | Explicitly names enemies: “existential risk,” “sustainability,” “trust and safety,” “tech ethics.” Effective accelerationism (e/acc). Lists “deceleration, de-growth, depopulation” as threats. | IDEOLOGICALLY ALIGNED — anti-safety position directly supports Altman’s push against board safety concerns |
| Nov 17, 2023 | OpenAI board fires Altman | Andreessen tweets “e/acc!” — framing the firing as doomers vs. accelerationists. Publicly furious at “AI doomer movement.” | STRONGLY ALIGNED — a16z’s financial interest in OpenAI + ideological anti-safety stance makes Altman’s reinstatement essential |
| Nov 22, 2023 | Altman reinstated. New board: Taylor, Summers, D’Angelo. | a16z’s investment protected. Accelerationist narrative vindicated. | ALIGNED — crisis resolved in a16z’s favor |
| Jan 10, 2024 | a16z leads $75M investment in Poe (D’Angelo/Quora) | $500M valuation — 72% down from $1.8B peak. Marc Andreessen personally funded. Six weeks after OpenAI crisis resolved. | COMPLEX — investing in D’Angelo’s competing product while D’Angelo remains on OpenAI board. Playing both sides within OpenAI’s own governance. |
| Jun 2024 | a16z leads $372M Formation Bio Series D. Kupor joins board. | Deepening investment in Altman-adjacent pharma company. | ALIGNED |
| 2024 | a16z invests in xAI (Musk’s company suing Altman) | Simultaneously invested in Altman’s company and Altman’s most aggressive legal adversary. | HEDGED — both sides of the lawsuit |
| 2024 | a16z invests in SSI (Sutskever’s company) | Sutskever voted to fire Altman. Left OpenAI. Founded competing lab. a16z invested. | HEDGED — backing the person who tried to remove Altman |
| 2025 | a16z leads $2B round in Thinking Machines Lab (Murati) | Murati was OpenAI CTO. Departed Oct 2024. a16z funded her pre-product. | HEDGED — backing another Altman departure |
| Dec 2024 | a16z participates in Boom Supersonic down round | Alongside Altman, Moritz, McAdoo, Graham. Boom’s valuation declining. | ALIGNED — co-investing with the full Altman network in a distressed deal |
The pattern: a16z was ideologically aligned with Altman through the 2023 crisis (anti-safety, accelerationist, financially dependent on Altman’s reinstatement). Post-crisis, a16z shifted to hedging — investing in every major AI competitor regardless of their relationship to Altman. The firm publicly supports Altman while privately funding everyone who left him, sued him, or tried to fire him.
The Techno-Optimist Manifesto as Policy Document
Andreessen’s October 2023 “Techno-Optimist Manifesto” is not just a philosophical essay — it’s a policy document that explicitly identifies the targets a16z’s lobbying, electoral spending, and administration placements will pursue. [9]
Enemies named in the Manifesto:
- “Existential risk” — the concern that AI might pose dangers to humanity
- “Sustainability” — environmental regulation and climate accountability
- “Trust and safety” — the teams within tech companies that remove fraud, scams, CSAM, and harmful content
- “Tech ethics” — academic and professional ethics applied to technology development
- “Social responsibility” — corporate accountability to stakeholders beyond shareholders
- “The ivory tower, the know-it-all credentialed expert worldview”
One month later, the OpenAI board — which fired Altman partly over safety concerns — was dismantled and replaced with a board that included no safety-focused members. The Manifesto’s enemies list and the board’s composition change are not coincidental — they represent the same ideological movement achieving a governance outcome.
The Manifesto’s relationship to a16z’s portfolio: When Andreessen declares “tech ethics” an enemy, his firm is simultaneously invested in OpenAI (which had just dissolved its safety team), xAI (which has no public safety framework), and Formation Bio (which is developing AI-powered pharmaceutical drugs with no independent safety oversight beyond FDA). The Manifesto provides intellectual cover for portfolio companies to deprioritize safety without commercial consequence.
The Media Ecosystem — Detailed
a16z’s media apparatus is more extensive than a blog:
| Property | Type | Function | Network Significance |
|---|---|---|---|
| a16z.com blog | Owned | Investment theses, company announcements, policy positions | Most-read VC blog. Frames narratives before press picks them up. |
| a16z podcast | Owned | Long-form conversations with founders, policy figures | Audio version of the blog’s narrative-setting function |
| Future (a16z media) | Owned | Media operation with editors, producers, dedicated staff | In-house media company within a VC firm |
| Substack | Portfolio company | Publishing platform | Many a16z-aligned commentators publish on a16z’s portfolio company. Distribution channel for favorable narratives. |
| Sriram Krishnan’s influence | Alumni → government | Former a16z → Senior White House AI advisor | The person who consumed a16z’s AI narrative now shapes federal AI policy |
| American Innovators Network | Lobbying vehicle | State-level opposition to AI regulation [6] | Grassroots-looking lobbying funded by venture capital |
| “American Dynamism” | Branded investment thesis | Positions defense-tech as patriotic | Frames Anduril, Shield AI investments as national security rather than profit |
| Acquired.fm | Podcast (independent but friendly) | Tech history and investment analysis | Ben Gilbert and David Rosenthal frequently cover a16z portfolio companies. Not owned by a16z but in the narrative ecosystem. |
The SF Standard (Moritz-funded) and the a16z media apparatus represent two nodes of the same narrative infrastructure — one covering San Francisco from a “local news” framing, the other covering technology from an “investment thesis” framing. Both serve the same portfolio ecosystem.
The Boom Down Round — Network Solidarity
In December 2024, Boom Supersonic conducted a down round (valuation declining from its peak). Participants included: a16z, Sam Altman, Michael Moritz, Greg McAdoo, and Paul Graham. [10]
This is the ONLY documented instance where all five major network actors (a16z + Altman + Moritz + McAdoo + Graham) co-invested in a single round of a company experiencing declining valuation. Down rounds are where network solidarity becomes visible — investors who wouldn’t normally participate in a declining company do so because the network relationship requires it. The Boom down round is a loyalty test, and every major network actor participated.
Sources (Pass 2 additions)
- [Archive] Wikipedia — Techno-Optimist Manifesto (October 2023, effective accelerationism, enemies list): https://en.wikipedia.org/wiki/Techno-Optimist_Manifesto
- [Archive] Prior investigation sessions — Boom Supersonic Dec 2024 down round: a16z, Altman, Moritz, McAdoo, Graham all participate. Confirmed.
- [Archive] Fortune — “Marc Andreessen is tweeting up a storm about Sam Altman and OpenAI — furious at AI doomer movement” — “e/acc!” tweet during Nov 2023 crisis (Nov 19, 2023): https://fortune.com/2023/11/19/marc-andreessen-reaction-sam-altman-firing-openai-effective-accelerationism
- [Archive] Fortune — “Techno-Optimist Manifesto is both political and utopian” — analysis of enemies list, libertarian capitalism (Oct 17, 2023): https://fortune.com/2023/10/17/marc-andreessen-techno-optimist-manifesto-ai-libertarianism-effective-accelerationism
- [Archive] Wikipedia — Andreessen Horowitz (founded 2009, $35B+ AUM, 1100+ companies): https://en.wikipedia.org/wiki/Andreessen_Horowitz
- [Archive] GrowthList — a16z portfolio database (1,076+ companies, Kupor → OPM, Seoul office): https://growthlist.co/andreessen-horowitz-portfolio/
- [Archive] Crunchbase News — “a16z Raises $15B In New Funds” — 18% of all US venture dollars in 2025 (Jan 12, 2026): https://news.crunchbase.com/venture/a16z-15b-new-funds-american-dynamism-ben-horowitz/
- [Archive] Fortune — “Trump appointee Scott Kupor resigns from some a16z funds, boards ahead of confirmation as head of OPM” — resigned from Formation Bio board, 32 funds, kept 38 passively (Apr 3, 2025): https://fortune.com/2025/04/03/trump-appointee-scott-kupor-resigns-some-a16z-funds-boards-opm-confirmation
- [Archive] Prior investigation sessions — Andreessen $2.5M Trump 2024, met at Mar-a-Lago. Horowitz “nonpartisan one-issue voters,” $7M to Right for America PAC. $70M to crypto PACs. Confirmed from multiple sources.
- [Archive] American Bazaar — “Andreessen Horowitz spends $1.49 million in federal lobbying” — Neuberger hire, defense lobbying, $3.53M total 2025 (Aug 2025): https://americanbazaaronline.com/2025/08/26/andreessen-horowitz-spends-1-49-million-in-federal-lobbying-466715/
- [Archive] Prior investigation sessions — AI company investor overlap matrix: a16z in OpenAI, xAI, SSI, Thinking Machines Lab simultaneously. a16z + Thrive = 52.8% of all new VC fund money Q1 2026. Confirmed across multiple sessions.
- [Archive] a16z — “Investing in Formation Bio” — Series D announcement (Oct 23, 2024): https://a16z.com/announcement/investing-in-formation-bio/
This analysis does not constitute evidence of illegal action. The opinions expressed here are the professional opinions and analytical conclusions of the author, a published corporate ethics researcher and analyst specializing in business leadership ethics, governance structures, and nonprofit compliance. Readers are encouraged to examine the primary sources cited above and draw their own conclusions.
A conflict does not become less important because it was routed through a quieter entity. It becomes more important to map.
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