Private Market Secondaries

Trade private shares.
Without showing your hand.

Anonymous matching for late-stage private tech company shares. Sealed bids. Verified counterparties. No identity leakage until close.

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OPENAI$340.00+12.4%
ANTHRO$185.50+8.2%
SPACEX$268.00+5.7%
REVOLUT$52.30+3.1%
KLARNA$74.80-1.9%
STRIPE$92.10+4.3%
DATABR$168.20+6.8%
ANDURIL$124.50+9.1%
OPENAI$340.00+12.4%
ANTHRO$185.50+8.2%
SPACEX$268.00+5.7%
REVOLUT$52.30+3.1%
KLARNA$74.80-1.9%
STRIPE$92.10+4.3%
DATABR$168.20+6.8%
ANDURIL$124.50+9.1%
The Problem

Transparent order books punish everyone except institutions.

// Signal leak

Price Signaling

When a known seller lists shares, the market reads it as negative sentiment. Your exit becomes everyone else's short thesis.

// Pressure

Relationship Risk

Employees selling shares face backlash from their company. Founders selling early signals doubt. The cost of being visible is too high.

// Asymmetry

Institutional Advantage

Large institutions with known identities extract better pricing. Individual sellers and smaller funds consistently leave money on the table.

// Leakage

Deal Front-Running

Transparent order books let market participants front-run large transactions. By the time you execute, the price has already moved against you.

Dark pool mechanics for private markets.

01

Anonymous Listing

Submit your intent to buy or sell. Share ownership and accredited investor status are verified, but your identity stays hidden from the counterparty.

02

Sealed-Bid Matching

No visible order book. Bids are sealed and matched by our intermediary. No price signaling, no front-running, no information leakage.

03

Structured Close

Identities revealed only at closing. Deal structuring, compliance, and transfer handled end-to-end. Clean execution, every time.

$120B
Secondary volume 2025
86%
Concentrated in top 20
0
Anonymous platforms

The secondary market deserves
better infrastructure.

Every other financial market has dark pools. Private secondaries are the last holdout. DarkBook changes that.