Companies · Biotechnology

Inhibrx, Inc.

LA JOLLA · Biotechnology · https://inhibrxbiosciences.investorroom.com/

Diligence memoA one-page analyst read on Inhibrx, Inc. — recommendation, valuation, rhythm, risks.
$668.6M
Total raised · real
5
Rounds
13.3×
Latest step-up
Top 1%
Sector rank · raised
Growth/Late
Latest stage · inferred · Thu Aug 31 2023 00:00:00 GMT+0000 (Coordinated Universal Time)

Inhibrx, Inc. has raised $669M over 5 rounds; too few niche peers to rank its valuation yet.

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.

At-risk
  • Last raise 2.8 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

Inhibrx, Inc. is one of 4291 Biotechnology companies tracked from LA JOLLA. By capital raised it ranks among the largest (ahead of 100% of sector peers), and among the largest by modeled valuation est..

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

AI analyst read est. — model-extracted from this company's public description, not a verified fact. 30%

operates a technology-led product inferred from public copy

Grounded in: “You are a venture analyst

Inhibrx | Investors - Investors

No filing review issues identified by FDA with PDUFA goal date set for April 14, 2027 If Approved, Ozekibart Would Be the First and Only FDA-Approved Treatment for Unresectable or Metastatic... Inhibrx Biosciences, Inc. (Nasdaq: INBX) ("Inhibrx" or the "Company") today reported financial results for the first quarter of 2026. The biopharmaceutical company has two programs in ongoing... Interim analyses show INBRX-106 + pembrolizumab achieved a 44.0% confirmed Objective Response Rate (cORR): In the preliminary confirmed response-evaluable population, the INBRX-106 + pembrolizumab... Inhibrx Biosciences, Inc. (Nasdaq: INBX) ("Inhibrx" or the "Company"), a clinical-stage biopharmaceutical company focused on developing therapeutics for oncology and rare diseases, today announced... Title: The tetravalent death receptor 5 (DR5) agonist ozekibart (INBRX-109) in conventional chondrosarcoma (CS): Secondary efficacy endpoints from the randomized, registrational, phase 2 ChonDRAgon study. Lead Author: Hans Gelderblom Abstract: 11504 Oral presentation: Saturday, May 30, 2026 (Session time: 4:12 PM – 4:24 PM CDT) Title: Phase 1 study of the tetravalent death receptor 5 agonist ozekibart (INBRX

pharma
Find Inhibrx, Inc. online

As reported in public records reported — not modeled.

US
Jurisdiction
Rule 506(b)
Reg D exemption
5
Investors (latest)
2023-08-31
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$5.0B$10.0B$15.0B$20.0BGrowth/Late · 2018-04-30 Raised $410M (real) Modeled valuation $17.4B (est)$410M$17.4BGrowth/Late2018Growth/Late · 2018-05-04 Raised $3.5M (real) Modeled valuation $151M (est)$3.5M$151MGrowth/Late2018Growth/Late · 2019-05-20 Raised $40M (real) Modeled valuation $1.7B (est)$40M$1.7BGrowth/Late2019Growth/Late · 2020-04-06 Raised $15M (real) Modeled valuation $637M (est)$15M$637MGrowth/Late2020Growth/Late · 2023-08-31 Raised $200M (real) Modeled valuation $3.3B (est)$200M$3.3BGrowth/Late2023+$3.5M+$40M+$15M+$200MCumulative $669M

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
Growth/Late$410.0M · 2018
Growth/Late extension$3.5M · 2018
Growth/Late extension$40.0M · 2019
Growth/Late extension$15.0M · 2020
Growth/Late extension$200.0M · 2023

Stages are modeled from round size (public records carry no series label). No record for: Pre-Seed, Seed, Series A, Series B, Series C, Series D+ — the company may have raised it under a different exemption, merged it into an adjacent record, or skipped it. Sequence completeness: 14%.

Modeled valuation trajectory
$3.3B
Base estimate est.
$1.2B
Conservative case
$4.6B
Upside case
$2.0B
Modeled post-money

Round size and date are reported; the stage label is inferred from round size (latest is Growth/Latea round over $400M). Valuation is modeled from stage benchmarks scaled by the biotech sector profile. Directional, not a quoted figure.

Growth/Late · modeled $17.4B · 2018-04-302018Growth/Late · modeled $150.6M · 2018-05-04Growth/Late · modeled $1.7B · 2019-05-20Growth/Late · modeled $636.5M · 2020-04-06Growth/Late · modeled $3.3B · 2023-08-312023
Model inputs · modeled:benchmark-stage-stepup-v1
10%
Dilution assumption
Implied ownership sold in the financing.
72%
Survival probability
62% low · 78% high
1.34×/yr
Annual markup
1.46×/yr upside case
2.8 yr
Elapsed time used
2.8 yr actual, capped for stale marks
biotech
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
16 mo
Avg between rounds
$125.3M/yr
Capital velocity
8.2 yr
On record since
2018
First round
5
Rounds on file
How it compares to the market

Benchmarked against 4291 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) 93× above median
This company$668.6M
Sector median$7.2M
Latest round — vs other Growth/Late rounds in sector (real $, this stage) 0.5× of median
This company$200.0M
Sector median$403.1M
Modeled value — vs sector median (estimate, all stages) 52× above median
This company$3.3B
Sector median$64.2M

Raised more than 100% of sector peers (real $). Modeled value above 97% of peers (estimate).

Niche peers — same stage & era

A tighter cohort than the sector chart above — only companies at the same stage (Growth/Late) 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 companyCohort peer
$1.0B$10.0B$100.0M$1.0BCapital raised (log)ImmunityBio, Inc. · Growth/Late Raised $640.1M · modeled $7.8B (est)Denali Therapeutics Inc. · Growth/Late Raised $499.7M · modeled $7.2B (est)Avidity Biosciences, Inc. · Growth/Late Raised $527.8M · modeled $5.7B (est)Inhibrx, Inc. (this company) Raised $668.6M · modeled $3.3B (est)Inhibrx, Inc.
CompanyStageRaised · realValue · estvs peer med.
ImmunityBio, Inc.Growth/Late$640.1M$7.8B1.20×
Denali Therapeutics Inc.Growth/Late$499.7M$7.2B1.11×
Avidity Biosciences, Inc.Growth/Late$527.8M$5.7B0.89×
Inhibrx, Inc. this companyGrowth/Late$668.6M$3.3B0.52×
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.
Growth/Late$410.0M2018-04-30$4.1B$17.4B90%
Growth/Late$3.5M2018-05-04$35.5M$150.6M90%
Growth/Late$40.0M2019-05-20$400.0M$1.7B90%
Growth/Late$15.0M2020-04-06$150.0M$636.5M90%
Growth/Late$200.0M2023-08-31$2.0B$3.3B90%
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. Growth/Late$410.0M2018-04-30
    • First recorded raise — entered as Growth/Late.
    • 71 investors on this round.
  2. Growth/Late$3.5M2018-05-04
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 115.5× smaller than the prior — bridge or down round.
    • 6 investors on this round.
  3. Growth/Late$40.0M2019-05-20
    • Raised 13 mo later, in step with the ~14 mo sector norm.
    • Round 11.3× larger than the prior — scaling up.
    • 1 investor on this round.
  4. Growth/Late$15.0M2020-04-06
    • Raised 11 mo later, in step with the ~14 mo sector norm.
    • Round 2.7× smaller than the prior — bridge or down round.
    • 5 investors on this round.
  5. Growth/Late$200.0M2023-08-31
    • Raised again after 41 mo — slower than the ~14 mo sector norm.
    • Round 13.3× larger than the prior — scaling up.
    • 5 investors on this round.
Intelligence
2024 ~Q4
Modeled next raise · ~16mo cadence
$600.0M
Modeled next size est.range $390.0M$960.0M
13.3×
Last step-up
$125.3M/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
Judith Li7 other2020-04
Doug Forsyth1 other2020-04
Jon Faiz Kayyem1 other2018-04
Jon Kayyem1 other2020-04
Kristiina Vuori1 other2023-08
Brendan Eckelman2018-04
Doug Faiz Forsyth2018-04
Douglas Forsyth2023-08
Judith Faiz Li2018-04
Kelly Deck2020-04
Kelly Faiz Deck2019-05
Kimberly Manhard2023-08
Margery Faiz Fischbein2018-04
Mark Lappe2018-04
Registry & provenance

Inhibrx, 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
1739614
SEC CIK
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Semantically similar

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Frequently asked
How much funding has Inhibrx, Inc. raised?
Inhibrx, Inc. has raised approximately $668.6M in disclosed capital across 5 recorded financing rounds, aggregated from public filings.
What is Inhibrx, Inc.'s estimated valuation?
Provath's modeled valuation for Inhibrx, Inc. is approximately $3.3B (modeled range $1.2B–$4.6B). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is Inhibrx, Inc. at?
Inhibrx, Inc.'s latest modeled financing stage is Growth/Late. Its most recent recorded round closed around Thu Aug 31.
What does Inhibrx, Inc. do and where is it based?
Inhibrx, Inc. operates in the Biotechnology sector, based in LA JOLLA. Inhibrx | Investors - Investors
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