Carta’s Equity Ledger Infrastructure
Carta Series C Deal Memo
Carta’s real wedge is not a marketplace first, it is control of the equity ledger that every later workflow depends on. Once a company’s ownership lives in one system, that system can issue certificates, track transfers, calculate tax holding periods, run tenders, update the cap table after a sale, and gradually introduce the price discovery and reporting habits that public markets already provide. That is what turns cap table software into private market infrastructure.
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The product logic starts with registry, not trading. In the 2017 memo, Carta is described as both the place where private securities are issued and the place where transactions are initiated and approved. That means it can replace spreadsheet updates, lawyer emails, transfer paperwork, and manual reconciliation with one workflow.
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The public market analogy is concrete. Public companies have transfer agents, brokers, exchanges, and regular disclosure. Private companies usually have lawyers, Excel, and one off tenders. Carta’s bet was that if private shares became digitally native inside a system of record, tender offers, recurring liquidity, and eventually pre IPO price discovery could look more like structured market plumbing than bespoke legal projects.
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This also explains why liquidity and transparency are linked. A company cannot safely let shares trade more often unless it knows exactly who owns what, what restrictions apply, and what information buyers can rely on. Later research shows trust and issuer control became the gating factors, which is why the ledger layer kept its value even when direct brokerage proved harder.
The path forward is deeper infrastructure. The winning platform in private markets is likely to look less like a cold start exchange and more like a transfer agent, compliance engine, data room, tender system, and investor workflow stack wrapped around the cap table. If that stack keeps expanding, private companies can stay private longer without giving up orderly liquidity, disciplined disclosures, or financing flexibility.