Companies · Biotechnology

NantBio, Inc.

El Segundo · Biotechnology

Diligence memoA one-page analyst read on NantBio, Inc. — recommendation, valuation, rhythm, risks.
$180.1M
Total raised · real
5
Rounds
7.5×
Latest step-up
Top 5%
Sector rank · raised
Series C
Latest stage · inferred · Wed Nov 08 2023 00:00:00 GMT+0000 (Coordinated Universal Time)

NantBio, Inc. looks over-valued against its niche peers and is at-risk on financing cadence.

Synthesized from the figures below est. — every claim rests on a number shown on this page. Valuation uses the biotech sector profile.

Analyst read est. — computed against this company's niche peers in the same era. Inputs shown; not a quoted figure.

Over-valued
  • Modeled value is 1.73× the median modeled value of Series C Biotechnology companies in 2022–2024 (111 peers) — value vs value, same stage and era.
At-risk
  • Last raise 2.6 yr ago; this sector typically re-raises about every 14 months.
  • Past due for a raise versus sector cadence — watch for distress or a bridge.
Leadership

No named principal in this company's public records yet — see all operators below.

Explore how these operators interlock with other companies in the operator network.

Where it sits in Biotechnology

NantBio, Inc. is one of 4293 Biotechnology companies tracked from El Segundo. By capital raised it ranks among the largest (ahead of 96% of sector peers), and in the upper tier by modeled valuation est..

Ranking is computed against this company's own sector cohort — reported capital is fact; valuation tiers are modeled.

As reported in public records reported — not modeled.

US
Jurisdiction
Rule 506(b)
Reg D exemption
6
Investors (latest)
2023-11-08
First sale
Amount raised vs valuation, by round

Solid bars are reported offering amounts reported; hatched bars are the modeled post-money valuation est. — both on one shared scale so you can read raise-vs-worth at each round directly. Use the toggles to overlay data labels and the niche-peer / market average value lines.

Amount raised · realModeled valuation · estCumulative funded · real
$0$1.3B$2.5B$3.8B$5.0BSeries B · 2014-01-02 Raised $25M (real) Modeled valuation $992M (est)$25M$992MSeries B2014Series C · 2014-07-09 Raised $45M (real) Modeled valuation $1.8B (est)$45M$1.8BSeries C2014Series C · 2014-10-24 Raised $25M (real) Modeled valuation $1.0B (est)$25M$1.0BSeries C2014Series C · 2015-04-29 Raised $100M (real) Modeled valuation $4.1B (est)$100M$4.1BSeries C2015Series C · 2015-04-29 Raised $10M (real) Modeled valuation $410M (est)$10M$410MSeries C2015Series C · 2023-11-08 Raised $75M (real) Modeled valuation $857M (est)$75M$857MSeries C2023+$45M+$25M+$100M+$10M+$75MCumulative $280M

The line shows cumulative reported funding over the period; + labels show new capital added between points when there is room. Toggle on-bar figures, plus the niche-peer and market averages, to read this company against its cohort. Benchmarks are modeled medians.

Financing ladder & sequence gaps
Series B$25.0M · 2014
Series C$45.0M · 2014
Series C extension$25.0M · 2014
Series C extension$100.0M · 2015
Series C extension$10.0M · 2015
Series C extension$75.1M · 2023

Stages are modeled from round size (public records carry no series label). No record for: Pre-Seed, Seed, Series A — the company may have raised it under a different exemption, merged it into an adjacent record, or skipped it. Sequence completeness: 40%.

Modeled valuation trajectory
$856.7M
Base estimate est.
$232.2M
Conservative case
$1.4B
Upside case
$500.5M
Modeled post-money

Round size and date are reported; the stage label is inferred from round size (latest is Series Ca $40M–$100M round). Valuation is modeled from stage benchmarks scaled by the biotech sector profile. Directional, not a quoted figure.

Series B · modeled $992.2M · 2014-01-022014Series C · modeled $1.8B · 2014-07-09Series C · modeled $1.0B · 2014-10-24Series C · modeled $4.1B · 2015-04-29Series C · modeled $409.6M · 2015-04-29Series C · modeled $856.7M · 2023-11-082023
Model inputs · modeled:benchmark-stage-stepup-v1
15%
Dilution assumption
Implied ownership sold in the financing.
62%
Survival probability
46% low · 72% high
1.46×/yr
Annual markup
1.68×/yr upside case
2.6 yr
Elapsed time used
2.6 yr actual, capped for stale marks
biotech
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
24 mo
Avg between rounds
$18.3M/yr
Capital velocity
12.5 yr
On record since
2014
First round
6
Rounds on file
How it compares to the market

Benchmarked against 4293 companies in Biotechnology. Each bar is a median (the middle company, not an average — outliers don't skew it). Two yardsticks: real money raised (reported on Form D) and modeled value (our estimate est.). These are whole-sector medians across all stages, except the per-stage row.

Total raised — vs sector median (real $, all stages) 25× above median
This company$180.1M
Sector median$7.2M
Latest round — vs other Series C rounds in sector (real $, this stage) 1.6× above median
This company$75.1M
Sector median$46.5M
Modeled value — vs sector median (estimate, all stages) 13× above median
This company$856.7M
Sector median$64.2M

Raised more than 96% of sector peers (real $). Modeled value above 88% of peers (estimate).

Niche peers — same stage & era

A tighter cohort than the sector chart above — only companies at the same stage (Series C) that last raised in the same ~3-year era, ranked by modeled value est. (not money raised). This is the exact set the analyst read compares against, so a like-for-like cohort is what makes "over/under-valued" meaningful. This company ranks #32 of 111.

This companyCohort peer
$100.0M$1.0B$10.0B$10.0M$100.0M$1.0BCapital raised (log)Dianthus Therapeutics, Inc. · Series C Raised $121.5M · modeled $2.1B (est)Satellite Biosciences, Inc. · Series C Raised $101.5M · modeled $1.8B (est)Deepcell, Inc. · Series C Raised $96.9M · modeled $1.7B (est)Ventus Therapeutics U.S., Inc. · Series C Raised $186.8M · modeled $1.6B (est)Morphic Holding, Inc. · Series C Raised $200.6M · modeled $1.5B (est)Genleap Ai Inc. · Series C Raised $100.0M · modeled $1.5B (est)Dren Bio, Inc. · Series C Raised $93.1M · modeled $1.3B (est)Lenz Therapeutics, Inc. · Series C Raised $136.2M · modeled $1.2B (est)eyeBrain Medical, Inc. · Series C Raised $126.3M · modeled $1.2B (est)A2 Biotherapeutics, Inc. · Series C Raised $143.1M · modeled $1.2B (est)Invetx, Inc. · Series C Raised $70.7M · modeled $1.2B (est)Hexagon Bio Inc. · Series C Raised $148.6M · modeled $1.2B (est)NantBio, Inc. (this company) Raised $180.1M · modeled $856.7M (est)NantBio, Inc.
CompanyStageRaised · realValue · estvs peer med.
Dianthus Therapeutics, Inc.Series C$121.5M$2.1B4.22×
Satellite Biosciences, Inc.Series C$101.5M$1.8B3.63×
Deepcell, Inc.Series C$96.9M$1.7B3.38×
Ventus Therapeutics U.S., Inc.Series C$186.8M$1.6B3.14×
Morphic Holding, Inc.Series C$200.6M$1.5B3.04×
Genleap Ai Inc.Series C$100.0M$1.5B3.00×
Dren Bio, Inc.Series C$93.1M$1.3B2.70×
Lenz Therapeutics, Inc.Series C$136.2M$1.2B2.49×
eyeBrain Medical, Inc.Series C$126.3M$1.2B2.45×
A2 Biotherapeutics, Inc.Series C$143.1M$1.2B2.42×
Invetx, Inc.Series C$70.7M$1.2B2.36×
Hexagon Bio Inc.Series C$148.6M$1.2B2.36×
NantBio, Inc. this companySeries C$180.1M$856.7M1.73×
Full financing history

Stage is inferred from round size est., not reported on the filing — a round's dollar size maps to a bucket: Pre-Seed <$1.0M · Seed $1.0M–$4.0M · Series A $4.0M–$15M · Series B $15M–$40M · Series C $40M–$100M · Series D+ $100M–$400M · Growth/Late >$400M.

StageAmount · realAnnouncedPost-money · estValue · estConf.
Series B$25.0M2014-01-02$138.9M$992.2M85%
Series C$45.0M2014-07-09$300.0M$1.8B85%
Series C$25.0M2014-10-24$166.7M$1.0B85%
Series C$100.0M2015-04-29$666.7M$4.1B85%
Series C$10.0M2015-04-29$66.7M$409.6M85%
Series C$75.1M2023-11-08$500.5M$856.7M90%
What happened at each round

Step-up, pace versus the sector's normal cadence, and revenue/exemption moves — read straight from the reported round facts reported.

  1. Series B$25.0M2014-01-02
    • First recorded raise — entered as Series B.
    • 1 investor on this round.
  2. Series C$45.0M2014-07-09
    • Came back fast: 6 mo vs the ~14 mo sector norm.
    • Round 1.8× larger than the prior — scaling up.
    • 1 investor on this round.
  3. Series C$25.0M2014-10-24
    • Came back fast: 4 mo vs the ~14 mo sector norm.
    • Round 1.8× smaller than the prior — bridge or down round.
    • 1 investor on this round.
  4. Series C$100.0M2015-04-29
    • Came back fast: 6 mo vs the ~14 mo sector norm.
    • Round 4.0× larger than the prior — scaling up.
    • 1 investor on this round.
  5. Series C$10.0M2015-04-29
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 10.0× smaller than the prior — bridge or down round.
    • 1 investor on this round.
  6. Series C$75.1M2023-11-08
    • Raised again after 102 mo — slower than the ~14 mo sector norm.
    • Round 7.5× larger than the prior — scaling up.
    • 6 investors on this round.
Intelligence
2025 ~Q4
Modeled next raise · ~24mo cadence
$225.2M
Modeled next size est.range $146.4M$360.4M
7.5×
Last step-up
$18.3M/yr
Capital velocity

Predictive signals are modeled est. from this company's own cadence and step-up, plus sector benchmarks — directional, not advice. Peer set and a CSV export live in your analyst workspace.

Key people & operators

Officers, directors and promoters named in this company's public recordsreported — the people who run it (not its investors). "Also runs" counts come from name-matching across all records, so verify before acting.

PersonRoleAlso runsTied since
Patrick Soon-Shiong15 other2014-01
Charles Kenworthy3 other2023-11
Douglas Reed Maughan2 other2023-11
Patrick Shoon-Shiong2 other2014-07
James Banaag2023-11
Registry & provenance

NantBio, Inc. is an official record sourced from the U.S. Securities and Exchange Commission (SEC). U.S. data is aggregated from SEC Form D filings.

United States
Country of record
US
Jurisdiction
1608318
SEC CIK
Similar companies

Nearest neighbours across the whole database — matched on sector, stage and capital scale, and on shared operators (officers or directors named at both companies in public filings). A discovery shortlist, not a valuation cohort — verify before acting, the same way modeled figures are directional.

CompanySectorStageRaised · realValue · estWhy similar
Viracta Therapeutics, INC.BiotechnologySeries C$164.6M$2.1Bnetwork1 shared operator · same sector · same stage
Cardiodx IncBiotechnologySeries C$174.0M$742.4Msame sector · same stage
Applied Therapeutics Inc.BiotechnologySeries C$189.2M$1.0Bsame sector · same stage
AcuFocus, Inc.BiotechnologySeries C$167.7M$981.9Msame sector · same stage
Perspective Therapeutics, Inc.BiotechnologySeries C$163.6M$882.9Msame sector · same stage
NantOmics, LLCBiotechnologySeries D+$260.9M$37.4Mnetwork1 shared operator · same sector
Aravive, Inc.BiotechnologySeries C$156.1M$702.9Msame sector · same stage
Agenus IncBiotechnologySeries C$211.2M$1.2Bsame sector · same stage
Semantically similar

Matched by meaning, not labels — a local language model reads each company's name, sector and description and ranks the closest in that learned space. This catches look-alikes that cross sector boundaries; the structured list above explains its matches, this one trusts the text. Directional, like every modeled signal here.

CompanySectorStageValue · estMatch
Nu-Tek BioSciences, LLCBiotechnologySeed$15.5M88%
Ntxbio, LlcBiotechnologyPre-Seed$50.5M87%
ManaT Bio, Inc.BiotechnologySeries C$848.7M87%
Nielsen BioSciences, Inc.BiotechnologySeries A$182.4M87%
NGM Bio Holdings, Inc.BiotechnologySeries C$650.5M87%
Taiga Biotechnologies, Inc.BiotechnologySeries A$485.3M87%
BRT Biotechnologies, Inc.BiotechnologyPre-Seed$2.0M87%
CND Life Sciences, Inc.BiotechnologySeries A$33.0M86%
Frequently asked
How much funding has NantBio, Inc. raised?
NantBio, Inc. has raised approximately $180.1M in disclosed capital across 5 recorded financing rounds, aggregated from public filings.
What is NantBio, Inc.'s estimated valuation?
Provath's modeled valuation for NantBio, Inc. is approximately $856.7M (modeled range $232.2M–$1.4B). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is NantBio, Inc. at?
NantBio, Inc.'s latest modeled financing stage is Series C. Its most recent recorded round closed around Wed Nov 08.
What does NantBio, Inc. do and where is it based?
NantBio, Inc. operates in the Biotechnology sector, based in El Segundo.
Explore related

See where NantBio, Inc. sits in the wider market — its sector, location and stage cohorts, each with their own leaderboards and capital-flow timelines.

Is this your company?

If you work at NantBio, Inc., claim this profile or suggest a correction. We aggregate from public filings, so help us keep your description, website and links accurate.

Is this your company? Update your profile or add contact details — and choose exactly who can reach you. Reviewed before anything is published.