Companies · Biotech / Pharma

Accipiter Biosciences Inc.

SEATTLE · Biotech / Pharma · refined from filed group “Other Technology

Diligence memoA one-page analyst read on Accipiter Biosciences Inc. — recommendation, valuation, rhythm, risks.
$14.2M
Total raised · real
2
Rounds
0.6×
Latest step-up
Top 34%
Sector rank · raised
Series A
Latest stage · inferred · Fri May 17 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

Accipiter Biosciences Inc. looks over-valued against its niche peers and is quiet on financing cadence.

Synthesized from the figures below est. — every claim rests on a number shown on this page. Valuation uses the biotech/pharma 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 1.93× the median modeled value of Series A Biotech / Pharma companies in 2022–2024 (21 peers) — value vs value, same stage and era.
Quiet
  • Last raise 2.1 yr ago; this sector typically re-raises about every 15 months.
  • Slightly overdue versus sector 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 Biotech / Pharma

Accipiter Biosciences Inc. is one of 227 Biotech / Pharma companies tracked from SEATTLE. By capital raised it ranks mid-pack (ahead of 67% of sector peers), and mid-pack 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
13
Investors (latest)
2023
Year incorporated
2024-05-17
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$25M$50M$75M$100MPre-Seed · 2023-04-19 Raised $650K (real) Modeled valuation $6.1M (est)$650K$6.1MPre-Seed2023Series A · 2024-05-17 Raised $14M (real) Modeled valuation $75M (est)$14M$75MSeries A2024Series A · 2024-05-17 Raised $7.9M (real) Modeled valuation $44M (est)$7.9M$44MSeries A2024+$14M+$7.9MCumulative $22M

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
Pre-Seed$650K · 2023
Series A$13.6M · 2024no Seed on file
Series A extension$7.9M · 2024

Stages are modeled from round size (public records carry no series label). No record for: Seed — the company may have raised it under a different exemption, merged it into an adjacent record, or skipped it. Sequence completeness: 67%.

Modeled valuation trajectory
$75.0M
Base estimate est.
$15.2M
Conservative case
$166.8M
Upside case
$61.8M
Modeled post-money

Round size and date are reported; the stage label is inferred from round size (latest is Series Aa $4.0M–$15M round). Valuation is modeled from stage benchmarks scaled by the biotech/pharma sector profile. Directional, not a quoted figure.

Pre-Seed · modeled $6.1M · 2023-04-192023Series A · modeled $75.0M · 2024-05-17Series A · modeled $43.7M · 2024-05-172024
Model inputs · modeled:benchmark-stage-stepup-v1
22%
Dilution assumption
Implied ownership sold in the financing.
45%
Survival probability
25% low · 62% high
1.59×/yr
Annual markup
2.01×/yr upside case
2.1 yr
Elapsed time used
2.1 yr actual, capped for stale marks
biotech/pharma
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
6 mo
Avg between rounds
$13.2M/yr
Capital velocity
3.2 yr
On record since
2023
First round
3
Rounds on file
How it compares to the market

Benchmarked against 227 companies in Biotech / Pharma. 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) 2.5× above median
This company$14.2M
Sector median$5.6M
Latest round — vs other Series A rounds in sector (real $, this stage) 1.5× above median
This company$7.9M
Sector median$5.4M
Modeled value — vs sector median (estimate, all stages) 2.5× above median
This company$75.0M
Sector median$30.5M

Raised more than 67% of sector peers (real $). Modeled value above 64% of peers (estimate).

Niche peers — same stage & era

A tighter cohort than the sector chart above — only companies at the same stage (Series A) 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 #2 of 21.

This companyCohort peer
$10.0M$100.0M$1.0M$10.0M$100.0MCapital raised (log)Laxmi Therapeutic Devices, Inc. · Series A Raised $58.2M · modeled $75.2M (est)Nanospectra Biosciences Inc · Series A Raised $22.3M · modeled $58.9M (est)Ten Bay Bio, Inc. · Series A Raised $11.5M · modeled $58.5M (est)Genomic Life, Inc. · Series A Raised $10.0M · modeled $55.9M (est)NJ BIO, Inc. · Series A Raised $5.6M · modeled $55.0M (est)Araceli Biosciences Inc. · Series A Raised $14.5M · modeled $50.4M (est)Nalu Bio, Inc. · Series A Raised $4.8M · modeled $48.4M (est)3F Bio Ltd · Series A Raised $7.2M · modeled $45.3M (est)PharmaCCX, Inc. · Series A Raised $11.7M · modeled $45.1M (est)Aion Therapeutic Inc. · Series A Raised $5.8M · modeled $38.9M (est)Topos Bio, Inc. · Series A Raised $9.0M · modeled $37.5M (est)Accipiter Biosciences Inc. (this company) Raised $14.2M · modeled $75.0M (est)Accipiter Biosciences Inc.
CompanyStageRaised · realValue · estvs peer med.
Laxmi Therapeutic Devices, Inc.Series A$58.2M$75.2M1.93×
Accipiter Biosciences Inc. this companySeries A$14.2M$75.0M1.93×
Nanospectra Biosciences IncSeries A$22.3M$58.9M1.52×
Ten Bay Bio, Inc.Series A$11.5M$58.5M1.50×
Genomic Life, Inc.Series A$10.0M$55.9M1.44×
NJ BIO, Inc.Series A$5.6M$55.0M1.42×
Araceli Biosciences Inc.Series A$14.5M$50.4M1.30×
Nalu Bio, Inc.Series A$4.8M$48.4M1.25×
3F Bio LtdSeries A$7.2M$45.3M1.17×
PharmaCCX, Inc.Series A$11.7M$45.1M1.16×
Aion Therapeutic Inc.Series A$5.8M$38.9M1.00×
Topos Bio, Inc.Series A$9.0M$37.5M0.96×
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.
Pre-Seed$650K2023-04-19$3.6M$6.1M90%
Series A$13.6M2024-05-17$61.8M$75.0M90%
Series A$7.9M2024-05-17$36.0M$43.7M90%
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. Pre-Seed$650K2023-04-19
    • First recorded raise — entered as Pre-Seed.
    • 6 investors on this round.
  2. Series A$13.6M2024-05-17
    • Raised 13 mo later, in step with the ~15 mo sector norm.
    • Round 20.9× larger than the prior — scaling up.
    • 15 investors on this round.
  3. Series A$7.9M2024-05-17
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 1.7× smaller than the prior — bridge or down round.
    • 13 investors on this round.
Intelligence
2024 ~Q4
Modeled next raise · ~6mo cadence
$7.9M
Modeled next size est.range $7.9M$12.7M
0.6×
Last step-up
$13.2M/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
Javier Castellanos1 other2023-04
Jiaping Gu1 other2024-05
Heather Gorham2024-05
Hector Arano2023-04
Hector De Jesus Rincon Arano2024-05
Jose Antonio Mesa Cejudo2024-05
Matthew Bick2023-04
William Arthur2023-04
Registry & provenance

Accipiter Biosciences 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
1973963
SEC CIK
2023
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
Sistema.bio, Inc.Biotech / PharmaSeries A$14.2M$21.5Msame sector · same stage
Araceli Biosciences Inc.Biotech / PharmaSeries A$14.5M$50.4Msame sector · same stage
Pharmaca Integrative Pharmacy IncBiotech / PharmaSeries A$13.6M$234.5Msame sector · same stage
Hollister Biosciences Inc.Biotech / PharmaSeries A$13.5M$21.2Msame sector · same stage
Onyx Bio, Inc.Biotech / PharmaSeries A$13.3M$19.6Msame sector · same stage
Ruby Bio, Inc.Biotech / PharmaSeries A$13.1M$27.7Msame sector · same stage
Generian Pharmaceuticals, Inc.Biotech / PharmaSeries A$13.0M$435.2Msame sector · same stage
Kanvas Biosciences, Inc.Biotech / PharmaSeries A$15.7M$23.7Msame 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
Arpeggio Biosciences, Inc.Biotech / PharmaSeries B$80.7M85%
PharmaCCX, Inc.Biotech / PharmaSeries A$45.1M84%
Iota Biosciences, Inc.Biotech / PharmaSeries B$551.7M84%
Sistema.bio, Inc.Biotech / PharmaSeries A$21.5M84%
Barnwell Bio, Inc.Biotech / PharmaSeries A$22.3M84%
Capra Biosciences, Inc.Biotech / PharmaSeed$2.1M84%
Yatiri Bio, Inc.Biotech / PharmaSeed$18.1M83%
Q Bio, Inc.Biotech / PharmaSeries B$213.8M83%
Frequently asked
How much funding has Accipiter Biosciences Inc. raised?
Accipiter Biosciences Inc. has raised approximately $14.2M in disclosed capital across 2 recorded financing rounds, aggregated from public filings.
What is Accipiter Biosciences Inc.'s estimated valuation?
Provath's modeled valuation for Accipiter Biosciences Inc. is approximately $75.0M (modeled range $15.2M–$166.8M). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is Accipiter Biosciences Inc. at?
Accipiter Biosciences Inc.'s latest modeled financing stage is Series A. Its most recent recorded round closed around Fri May 17.
What does Accipiter Biosciences Inc. do and where is it based?
Accipiter Biosciences Inc. operates in the Biotech / Pharma sector, based in SEATTLE.
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