Companies · Biotechnology

Rubius Therapeutics, Inc.

CAMBRIDGE · Biotechnology

Diligence memoA one-page analyst read on Rubius Therapeutics, Inc. — recommendation, valuation, rhythm, risks.
$216.2M
Total raised · real
2
Rounds
0.9×
Latest step-up
Top 4%
Sector rank · raised
Series D+
Latest stage · inferred · Fri Feb 23 2018 00:00:00 GMT+0000 (Coordinated Universal Time)

Rubius Therapeutics, Inc. looks fair against its niche peers and is dormant 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.

Fair
  • Modeled value is 0.95× the median modeled value of Series D+ Biotechnology companies in 2016–2018 (13 peers) — value vs value, same stage and era.
  • Within the normal band (95% of peer median) for its niche.
Dormant
  • Last raise 8.3 yr ago; this sector typically re-raises about every 14 months.
  • Silent for over 3× the sector's normal cadence.
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

Rubius Therapeutics, Inc. is one of 4291 Biotechnology companies tracked from CAMBRIDGE. By capital raised it ranks among the largest (ahead of 97% 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.

pharma

As reported in public records reported — not modeled.

US
Jurisdiction
Rule 506(b)
Reg D exemption
27
Investors (latest)
2013
Year incorporated
2018-02-23
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 D+ · 2017-06-07 Raised $115M (real) Modeled valuation $4.7B (est)$115M$4.7BSeries D+2017Series D+ · 2018-02-23 Raised $101M (real) Modeled valuation $4.2B (est)$101M$4.2BSeries D+2018+$101MCumulative $216M

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 D+$115.0M · 2017
Series D+ extension$101.2M · 2018

Stages are modeled from round size (public records carry no series label). No record for: Pre-Seed, Seed, Series A, Series B, Series C — the company may have raised it under a different exemption, merged it into an adjacent record, or skipped it. Sequence completeness: 17%.

Modeled valuation trajectory
$4.2B
Base estimate est.
$458.8M
Conservative case
$9.1B
Upside case
$843.3M
Modeled post-money

Round size and date are reported; the stage label is inferred from round size (latest is Series D+a $100M–$400M round). Valuation is modeled from stage benchmarks scaled by the biotech sector profile. Directional, not a quoted figure.

Series D+ · modeled $4.7B · 2017-06-072017Series D+ · modeled $4.2B · 2018-02-232018
Model inputs · modeled:benchmark-stage-stepup-v1
12%
Dilution assumption
Implied ownership sold in the financing.
68%
Survival probability
54% low · 75% high
1.39×/yr
Annual markup
1.56×/yr upside case
6.0 yr
Elapsed time used
8.3 yr actual, capped for stale marks
biotech
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
9 mo
Avg between rounds
$302.6M/yr
Capital velocity
9.1 yr
On record since
2017
First round
2
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) 30× above median
This company$216.2M
Sector median$7.2M
Latest round — vs other Series D+ rounds in sector (real $, this stage) 0.8× of median
This company$101.2M
Sector median$120.0M
Modeled value — vs sector median (estimate, all stages) 65× above median
This company$4.2B
Sector median$64.2M

Raised more than 97% of sector peers (real $). Modeled value above 99% of peers (estimate).

Niche peers — same stage & era

A tighter cohort than the sector chart above — only companies at the same stage (Series D+) 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 #9 of 13.

This companyCohort peer
$1.0B$10.0B$100.0B$10.0M$100.0M$1.0BCapital raised (log)Guardant Health, Inc. · Series D+ Raised $500.0M · modeled $13.2B (est)Humacyte, Inc. · Series D+ Raised $274.8M · modeled $6.2B (est)Atreca, Inc. · Series D+ Raised $222.2M · modeled $5.2B (est)Semma Therapeutics, Inc. · Series D+ Raised $129.3M · modeled $4.7B (est)Braeburn Pharmaceuticals, Inc. · Series D+ Raised $110.0M · modeled $4.5B (est)Schrodinger, Inc. · Series D+ Raised $159.8M · modeled $4.4B (est)Synthego Corp · Series D+ Raised $155.7M · modeled $4.4B (est)Neon Therapeutics, Inc. · Series D+ Raised $106.0M · modeled $4.4B (est)Allakos Inc. · Series D+ Raised $128.1M · modeled $4.1B (est)Unity Biotechnology, Inc. · Series D+ Raised $208.6M · modeled $2.3B (est)Edwards Lifesciences Corp · Series D+ Raised $307.2M · modeled $1.4B (est)Rubius Therapeutics, Inc. (this company) Raised $216.2M · modeled $4.2B (est)Rubius Therapeutics, Inc.
CompanyStageRaised · realValue · estvs peer med.
Guardant Health, Inc.Series D+$500.0M$13.2B3.02×
Humacyte, Inc.Series D+$274.8M$6.2B1.41×
Atreca, Inc.Series D+$222.2M$5.2B1.18×
Semma Therapeutics, Inc.Series D+$129.3M$4.7B1.07×
Braeburn Pharmaceuticals, Inc.Series D+$110.0M$4.5B1.04×
Schrodinger, Inc.Series D+$159.8M$4.4B1.01×
Synthego CorpSeries D+$155.7M$4.4B1.00×
Neon Therapeutics, Inc.Series D+$106.0M$4.4B1.00×
Rubius Therapeutics, Inc. this companySeries D+$216.2M$4.2B0.95×
Allakos Inc.Series D+$128.1M$4.1B0.94×
Unity Biotechnology, Inc.Series D+$208.6M$2.3B0.52×
Edwards Lifesciences CorpSeries D+$307.2M$1.4B0.33×
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 D+$115.0M2017-06-07$958.3M$4.7B90%
Series D+$101.2M2018-02-23$843.3M$4.2B90%
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 D+$115.0M2017-06-07
    • First recorded raise — entered as Series D+.
    • 16 investors on this round.
  2. Series D+$101.2M2018-02-23
    • Raised 9 mo later, in step with the ~14 mo sector norm.
    • Round roughly the size of the prior one.
    • 27 investors on this round.
Intelligence
2018 ~Q4
Modeled next raise · ~9mo cadence
$101.2M
Modeled next size est.range $101.2M$161.9M
0.9×
Last step-up
$302.6M/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
Peter Barton Hutt13 other2017-06
Robert S Langer13 other2017-06
Noubar B Afeyan4 other2017-06
Andrew B. Oh2018-02
Catherine B. Sohn2018-02
Christopher L. Carpenter2018-02
David Straight Epstein2017-06
Francis B. Cuss2018-02
Harvey F. Lodish2017-06
Joanne Protano2017-06
Michael Barton Rosenblatt2017-06
Michael S. Rosenblatt2018-02
Roger S. Pomerantz2017-06
Torben Straight Nissen2017-06
Registry & provenance

Rubius Therapeutics, 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
1709401
SEC CIK
2013
Incorporated
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
Tarveda Therapeutics, Inc.BiotechnologySeries B$127.4M$141.7Mnetwork2 shared operators · same sector
Humacyte, Inc.BiotechnologySeries D+$274.8M$6.2Bnetwork1 shared operator · same sector · same stage
Lyndra, Inc.BiotechnologySeries D+$281.9M$1.6Bnetwork1 shared operator · same sector · same stage
Syros Pharmaceuticals, Inc.BiotechnologySeries D+$296.1M$2.6Bnetwork1 shared operator · same sector · same stage
Selecta Biosciences IncBiotechnologySeries D+$445.6M$1.4Bnetwork1 shared operator · same sector · same stage
BIND Biosciences IncBiotechnologySeries B$51.4M$345.2Mnetwork2 shared operators · same sector
Metsera, Inc.BiotechnologySeries D+$215.0M$2.1Bsame sector · same stage
Venn Biosciences CorpBiotechnologySeries D+$214.6M$5.0Bsame 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
RubrYc Therapeutics, Inc.BiotechnologySeries A$81.6M88%
Rasio Therapeutics, Inc.BiotechnologySeed$31.2M86%
Gladius Pharmaceuticals CorpBiotechnologySeed$134.2M84%
Interius BioTherapeutics, Inc.BiotechnologySeries C$478.4M83%
Pique Therapeutics, Inc.BiotechnologyPre-Seed$47.2M83%
Wings Therapeutics, Inc.BiotechnologySeed$66.6M83%
Redpin Therapeutics, Inc.BiotechnologySeries A$281.5M83%
Orbus Therapeutics, Inc.BiotechnologySeries B$384.7M83%
Frequently asked
How much funding has Rubius Therapeutics, Inc. raised?
Rubius Therapeutics, Inc. has raised approximately $216.2M in disclosed capital across 2 recorded financing rounds, aggregated from public filings.
What is Rubius Therapeutics, Inc.'s estimated valuation?
Provath's modeled valuation for Rubius Therapeutics, Inc. is approximately $4.2B (modeled range $458.8M–$9.1B). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is Rubius Therapeutics, Inc. at?
Rubius Therapeutics, Inc.'s latest modeled financing stage is Series D+. Its most recent recorded round closed around Fri Feb 23.
What does Rubius Therapeutics, Inc. do and where is it based?
Rubius Therapeutics, Inc. operates in the Biotechnology sector, based in CAMBRIDGE.
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