Companies · Pharmaceuticals

Rib X Pharmaceuticals Inc

NEW HAVEN · Pharmaceuticals

Diligence memoA one-page analyst read on Rib X Pharmaceuticals Inc — recommendation, valuation, rhythm, risks.
$29.7M
Total raised · real
3
Rounds
3.4×
Latest step-up
Top 28%
Sector rank · raised
Series B
Latest stage · inferred · Thu Nov 15 2012 00:00:00 GMT+0000 (Coordinated Universal Time)

Rib X Pharmaceuticals 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 pharma 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 0.86× the median modeled value of Series B Pharmaceuticals companies in 2010–2012 (47 peers) — value vs value, same stage and era.
  • Within the normal band (86% of peer median) for its niche.
Dormant
  • Last raise 13.6 yr ago; this sector typically re-raises about every 13 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 Pharmaceuticals

Rib X Pharmaceuticals Inc is one of 1613 Pharmaceuticals companies tracked from NEW HAVEN. By capital raised it ranks in the upper tier (ahead of 73% 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
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$250M$500M$750M$1.0BSeries A · 2010-05-28 Raised $5.5M (real) Modeled valuation $170M (est)$5.5M$170MSeries A2010Series A · 2011-01-12 Raised $5.5M (real) Modeled valuation $170M (est)$5.5M$170MSeries A2011Series B · 2012-11-15 Raised $19M (real) Modeled valuation $635M (est)$19M$635MSeries B2012+$5.5M+$19MCumulative $30M

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 A$5.5M · 2010
Series A extension$5.5M · 2011
Series B$18.7M · 2012

Stages are modeled from round size (public records carry no series label). No record for: Pre-Seed, Seed — the company may have raised it under a different exemption, merged it into an adjacent record, or skipped it. Sequence completeness: 50%.

Modeled valuation trajectory
$635.4M
Base estimate est.
$39.2M
Conservative case
$2.4B
Upside case
$103.8M
Modeled post-money

Round size and date are reported; the stage label is inferred from round size (latest is Series Ba $15M–$40M round). Valuation is modeled from stage benchmarks scaled by the pharma sector profile. Directional, not a quoted figure.

Series A · modeled $170.3M · 2010-05-282010Series A · modeled $170.3M · 2011-01-12Series B · modeled $635.4M · 2012-11-152012
Model inputs · modeled:benchmark-stage-stepup-v1
18%
Dilution assumption
Implied ownership sold in the financing.
57%
Survival probability
38% low · 70% high
1.49×/yr
Annual markup
1.80×/yr upside case
6.0 yr
Elapsed time used
13.6 yr actual, capped for stale marks
pharma
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
15 mo
Avg between rounds
$12.0M/yr
Capital velocity
16.1 yr
On record since
2010
First round
3
Rounds on file
How it compares to the market

Benchmarked against 1613 companies in Pharmaceuticals. 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) 3.7× above median
This company$29.7M
Sector median$8.1M
Latest round — vs other Series B rounds in sector (real $, this stage) 1.0× above median
This company$18.7M
Sector median$18.0M
Modeled value — vs sector median (estimate, all stages) 8.4× above median
This company$635.4M
Sector median$76.1M

Raised more than 73% of sector peers (real $). Modeled value above 83% of peers (estimate).

Niche peers — same stage & era

A tighter cohort than the sector chart above — only companies at the same stage (Series B) 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 #30 of 47.

This companyCohort peer
$100.0M$1.0B$10.0B$10.0M$100.0MCapital raised (log)Celator Pharmaceuticals Inc · Series B Raised $63.5M · modeled $1.3B (est)Kythera Biopharmaceuticals Inc · Series B Raised $37.4M · modeled $1.3B (est)Palatin Technologies Inc · Series B Raised $35.0M · modeled $1.2B (est)Pernix Therapeutics Holdings, Inc. · Series B Raised $34.0M · modeled $1.2B (est)CEBIX Inc · Series B Raised $76.3M · modeled $1.1B (est)Topica Pharmaceuticals Inc · Series B Raised $51.5M · modeled $1.1B (est)Supernus Pharmaceuticals Inc · Series B Raised $45.0M · modeled $1.0B (est)Cornerstone Therapeutics Inc · Series B Raised $30.0M · modeled $1.0B (est)Derma Sciences, Inc. · Series B Raised $29.1M · modeled $988.7M (est)iPierian, Inc. · Series B Raised $87.3M · modeled $985.1M (est)Sunesis Pharmaceuticals Inc · Series B Raised $38.5M · modeled $969.1M (est)Cardioxyl Pharmaceuticals Inc · Series B Raised $52.0M · modeled $953.8M (est)Rib X Pharmaceuticals Inc (this company) Raised $29.7M · modeled $635.4M (est)Rib X Pharmaceuticals Inc
CompanyStageRaised · realValue · estvs peer med.
Celator Pharmaceuticals IncSeries B$63.5M$1.3B1.80×
Kythera Biopharmaceuticals IncSeries B$37.4M$1.3B1.72×
Palatin Technologies IncSeries B$35.0M$1.2B1.61×
Pernix Therapeutics Holdings, Inc.Series B$34.0M$1.2B1.56×
CEBIX IncSeries B$76.3M$1.1B1.53×
Topica Pharmaceuticals IncSeries B$51.5M$1.1B1.45×
Supernus Pharmaceuticals IncSeries B$45.0M$1.0B1.38×
Cornerstone Therapeutics IncSeries B$30.0M$1.0B1.38×
Derma Sciences, Inc.Series B$29.1M$988.7M1.34×
iPierian, Inc.Series B$87.3M$985.1M1.33×
Sunesis Pharmaceuticals IncSeries B$38.5M$969.1M1.31×
Cardioxyl Pharmaceuticals IncSeries B$52.0M$953.8M1.29×
Rib X Pharmaceuticals Inc this companySeries B$29.7M$635.4M0.86×
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 A$5.5M2010-05-28$25.0M$170.3M90%
Series A$5.5M2011-01-12$25.0M$170.3M90%
Series B$18.7M2012-11-15$103.8M$635.4M90%
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 A$5.5M2010-05-28
    • First recorded raise — entered as Series A.
  2. Series A$5.5M2011-01-12
    • Came back fast: 8 mo vs the ~13 mo sector norm.
    • Round roughly the size of the prior one.
  3. Series B$18.7M2012-11-15
    • Raised again after 22 mo — slower than the ~13 mo sector norm.
    • Round 3.4× larger than the prior — scaling up.
Intelligence
2014 ~Q1
Modeled next raise · ~15mo cadence
$56.1M
Modeled next size est.range $36.4M$89.7M
3.4×
Last step-up
$12.0M/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
Jonathan Leff10 other2010-05
Harry H Penner, Jr.5 other2010-05
Jonathan S. Leff2 other2012-11
Mark Leuchtenberger2 other2010-05
Cecilia Gonzalo1 other2010-05
George M. Milne, Jr.1 other2012-11
Robert Conerly1 other2010-05
C. Boyd H. Clarke2010-05
Cecilia S. Gonzalo2012-11
George H. Milne2011-01
Jonathan H. Fleming2010-05
Peter H. Greenleaf2010-05
Raymond H. Whitaker2010-05
Registry & provenance

Rib X Pharmaceuticals 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
1164994
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
Marinus Pharmaceuticals, Inc.PharmaceuticalsSeries B$73.4M$21.0Mnetwork1 shared operator · same sector · same stage
Cornerstone Therapeutics IncPharmaceuticalsSeries B$30.0M$1.0Bsame sector · same stage
Kinaset Therapeutics, Inc.PharmaceuticalsSeries B$30.0M$438.1Msame sector · same stage
PassPort Technologies, Inc.PharmaceuticalsSeries B$30.0M$1.0Bsame sector · same stage
Relay Therapeutics, Inc.PharmaceuticalsSeries B$30.0M$253.2Msame sector · same stage
Virdante Pharmaceuticals, Inc.PharmaceuticalsSeries B$30.1M$1.0Bsame sector · same stage
Sirion Holdings, Inc.PharmaceuticalsSeries B$30.2M$941.4Msame sector · same stage
Derma Sciences, Inc.PharmaceuticalsSeries B$29.1M$988.7Msame sector · same stage
Frequently asked
How much funding has Rib X Pharmaceuticals Inc raised?
Rib X Pharmaceuticals Inc has raised approximately $29.7M in disclosed capital across 3 recorded financing rounds, aggregated from public filings.
What is Rib X Pharmaceuticals Inc's estimated valuation?
Provath's modeled valuation for Rib X Pharmaceuticals Inc is approximately $635.4M (modeled range $39.2M–$2.4B). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is Rib X Pharmaceuticals Inc at?
Rib X Pharmaceuticals Inc's latest modeled financing stage is Series B. Its most recent recorded round closed around Thu Nov 15.
What does Rib X Pharmaceuticals Inc do and where is it based?
Rib X Pharmaceuticals Inc operates in the Pharmaceuticals sector, based in NEW HAVEN.
Explore related

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