Series D

A Series D is a late-stage venture round — the fourth priced round after seed — raised by a company that is large enough to be preparing for an exit but not yet ready for one, or that needs more capital than the plan at its Series C assumed. It is led by growth funds, crossover investors and sometimes strategic buyers, priced close to public-market comparables, and it is the round where a down round is most visible.

Venture funding · 3 min read · 9 September 2026

Also known as
Series D round, Late-stage round
Used at
companies at $50m–500m of revenue, two to four years from an IPO or a sale, or ones whose last plan ran out of money before its milestones arrived
Binding
yes — a further class of preferred shares, often with terms that later rounds and an IPO will have to unwind
Typical size
$50m–300m; in fintech, larger when the round funds a balance sheet
Typical investors
growth-equity funds, crossover funds that also buy public stocks, sovereign funds, and strategics buying an option on the company
Parties
the new lead, every earlier investor deciding whether to follow, founders who by now hold a minority, and a board that is mostly investors

How a Series D works in practice

By the fourth round a company has a track record, public comparables and a cap table with several classes of preferred stock, and the round is priced like a private placement of a near-public company. Crossover investors value it against listed peers' revenue multiples less a discount for illiquidity; the plan is an IPO or a sale within a defined window, and the terms often say so — a ratchet that gives the D investors more shares if the IPO prices below their entry, or a redemption right if no exit has come by a date.

The round is also where the market's weather shows. In 2021 fintech Series Ds were priced at multiples that the 2022 rate rises removed; Klarna, which had raised at a $45.6bn valuation in June 2021, raised $800m in July 2022 at $6.7bn. A down round triggers the anti-dilution protection of every earlier class, shifts ownership from founders and employees to investors, and often comes with a recapitalisation that simplifies the preference stack so that the company can be sold at all.

For a strategic acquirer, a Series D is sometimes the first move: an investment with information rights and a right of first refusal, so that when the company is sold the strategic knows first. For everyone else it is the round that decides whether the exit will be a listing, a sale, or a long wait.

Example

A lending fintech with $120m of revenue raised its Series C at a $1.5bn post-money in 2021. In 2023 it needs $150m to fund growth and its lending book, and the best offer is a Series D at $900m pre-money: a down round. The Series C's full-ratchet anti-dilution protection reprices its $200m investment from $1.5bn to $900m, issuing it a further 8% of the company; the founders' stake falls from 22% to 15% and the employee pool loses proportionately. The new lead, a growth fund, takes 14% for its $150m and a 1.5× preference senior to everything before it. Two years later the company is sold for $1.4bn: the D takes $225m first, the earlier preferences $520m next, and the founders' 15% of what is left is about $98m — less than their 22% of the C valuation would have implied, and more than the zero a failed round would have produced.

Common mistakes

- Raising a D at a flat or down valuation without renegotiating the preference stack, so the company becomes unsellable. - Accepting an IPO ratchet without modelling what it does to earlier holders if the listing prices low. - A redemption right the company could never fund. - Founders and employees learning what full-ratchet anti-dilution means at the round that triggers it. - Taking a strategic's money without noticing that its right of first refusal will chill every other bidder.

Related terms

Written by , M&A FinTech Expert.

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