Companies · Biotechnology

Selecta Biosciences Inc

GAITHERSBURG · Biotechnology

Diligence memoA one-page analyst read on Selecta Biosciences Inc — recommendation, valuation, rhythm, risks.
$445.6M
Total raised · real
15
Rounds
2.2×
Latest step-up
Top 2%
Sector rank · raised
Series D+
Latest stage · inferred · Tue Jul 02 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

Selecta Biosciences Inc looks fair 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 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 0.71× the median modeled value of Series D+ Biotechnology companies in 2022–2024 (75 peers) — value vs value, same stage and era.
  • Within the normal band (71% of peer median) for its niche.
Quiet
  • Last raise 24 mo ago; this sector typically re-raises about every 14 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 Biotechnology

Selecta Biosciences Inc is one of 4293 Biotechnology companies tracked from GAITHERSBURG. By capital raised it ranks among the largest (ahead of 99% 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.

As reported in public records reported — not modeled.

US
Jurisdiction
Rule 506(b)
Reg D exemption
22
Investors (latest)
2024-07-02
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 · 2010-03-22 Raised $15M (real) Modeled valuation $595M (est)Series B2010Series B · 2011-11-07 Raised $3.5M (real) Modeled valuation $139M (est)Series B2011Series B · 2011-11-07 Raised $22M (real) Modeled valuation $873M (est)Series B2011Series B · 2014-04-07 Raised $5.3M (real) Modeled valuation $210M (est)Series B2014Series B · 2014-07-15 Raised $6.0M (real) Modeled valuation $238M (est)Series B2014Series B · 2014-08-14 Raised $4.5M (real) Modeled valuation $177M (est)Series B2014Series B · 2015-04-10 Raised $5.9M (real) Modeled valuation $236M (est)Series B2015Series B · 2015-08-27 Raised $37M (real) Modeled valuation $1.5B (est)Series B2015Series B · 2016-12-02 Raised $5.0M (real) Modeled valuation $198M (est)Series B2016Series C · 2017-06-27 Raised $50M (real) Modeled valuation $2.0B (est)Series C2017Series C · 2019-08-20 Raised $5.8M (real) Modeled valuation $236M (est)Series C2019Series C · 2019-12-18 Raised $70M (real) Modeled valuation $2.9B (est)Series C2019Series C · 2020-07-31 Raised $25M (real) Modeled valuation $993M (est)Series C2020Series C · 2023-11-13 Raised $60M (real) Modeled valuation $684M (est)Series C2023Series C · 2023-11-13 Raised $60M (real) Modeled valuation $684M (est)Series C2023Series D+ · 2024-07-02 Raised $130M (real) Modeled valuation $1.4B (est)Series D+2024Cumulative $506M

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$15.0M · 2010
Series B extension$3.5M · 2011
Series B extension$22.0M · 2011
Series B extension$5.3M · 2014
Series B extension$6.0M · 2014
Series B extension$4.5M · 2014
Series B extension$5.9M · 2015
Series B extension$37.4M · 2015
Series B extension$5.0M · 2016
Series C$50.0M · 2017
Series C extension$5.8M · 2019
Series C extension$70.0M · 2019
Series C extension$25.0M · 2020
Series C extension$60.3M · 2023
Series C extension$60.3M · 2023
Series D+$130.0M · 2024

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: 50%.

Modeled valuation trajectory
$1.4B
Base estimate est.
$589.4M
Conservative case
$2.0B
Upside case
$1.1B
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 B · modeled $595.3M · 2010-03-222010Series B · modeled $138.9M · 2011-11-07Series B · modeled $873.2M · 2011-11-07Series B · modeled $210.1M · 2014-04-07Series B · modeled $238.1M · 2014-07-15Series B · modeled $176.6M · 2014-08-14Series B · modeled $235.8M · 2015-04-10Series B · modeled $1.5B · 2015-08-27Series B · modeled $198.4M · 2016-12-02Series C · modeled $2.0B · 2017-06-27Series C · modeled $235.6M · 2019-08-20Series C · modeled $2.9B · 2019-12-18Series C · modeled $992.9M · 2020-07-31Series C · modeled $684.0M · 2023-11-13Series C · modeled $684.0M · 2023-11-13Series D+ · modeled $1.4B · 2024-07-022024
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
2.0 yr
Elapsed time used
2.0 yr actual, capped for stale marks
biotech
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
11 mo
Avg between rounds
$31.2M/yr
Capital velocity
16.3 yr
On record since
2010
First round
16
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) 62× above median
This company$445.6M
Sector median$7.2M
Latest round — vs other Series D+ rounds in sector (real $, this stage) 1.1× above median
This company$130.0M
Sector median$120.0M
Modeled value — vs sector median (estimate, all stages) 22× above median
This company$1.4B
Sector median$64.2M

Raised more than 99% of sector peers (real $). Modeled value above 92% 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 #52 of 75.

This companyCohort peer
$1.0B$10.0B$100.0M$1.0BCapital raised (log)Areteia Therapeutics, Inc. · Series D+ Raised $360.0M · modeled $7.8B (est)GIO World Health Ltd · Series D+ Raised $300.0M · modeled $7.4B (est)Crinetics Pharmaceuticals, Inc. · Series D+ Raised $428.0M · modeled $4.3B (est)2seventy bio, Inc. · Series D+ Raised $170.0M · modeled $4.0B (est)Gio World Health (Europe) Sa · Series D+ Raised $150.0M · modeled $3.7B (est)GIO World Health (Europe) Ltd · Series D+ Raised $150.0M · modeled $3.7B (est)Arsenal Biosciences, Inc. · Series D+ Raised $579.2M · modeled $3.5B (est)ImmPACT Bio USA Inc. · Series D+ Raised $143.6M · modeled $3.5B (est)BioNTech SE · Series D+ Raised $400.0M · modeled $3.4B (est)RayzeBio, Inc. · Series D+ Raised $396.4M · modeled $3.4B (est)Genesis Therapeutics, Inc. · Series D+ Raised $297.4M · modeled $3.3B (est)Legend Biotech Corp · Series D+ Raised $350.5M · modeled $3.3B (est)Selecta Biosciences Inc (this company) Raised $445.6M · modeled $1.4B (est)Selecta Biosciences Inc
CompanyStageRaised · realValue · estvs peer med.
Areteia Therapeutics, Inc.Series D+$360.0M$7.8B3.87×
GIO World Health LtdSeries D+$300.0M$7.4B3.67×
Crinetics Pharmaceuticals, Inc.Series D+$428.0M$4.3B2.13×
2seventy bio, Inc.Series D+$170.0M$4.0B1.98×
Gio World Health (Europe) SaSeries D+$150.0M$3.7B1.84×
GIO World Health (Europe) LtdSeries D+$150.0M$3.7B1.84×
Arsenal Biosciences, Inc.Series D+$579.2M$3.5B1.76×
ImmPACT Bio USA Inc.Series D+$143.6M$3.5B1.72×
BioNTech SESeries D+$400.0M$3.4B1.71×
RayzeBio, Inc.Series D+$396.4M$3.4B1.69×
Genesis Therapeutics, Inc.Series D+$297.4M$3.3B1.64×
Legend Biotech CorpSeries D+$350.5M$3.3B1.63×
Selecta Biosciences Inc this companySeries D+$445.6M$1.4B0.71×
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$15.0M2010-03-22$83.3M$595.3M85%
Series B$3.5M2011-11-07$19.4M$138.9M85%
Series B$22.0M2011-11-07$122.2M$873.2M85%
Series B$5.3M2014-04-07$29.4M$210.1M85%
Series B$6.0M2014-07-15$33.3M$238.1M85%
Series B$4.5M2014-08-14$24.7M$176.6M85%
Series B$5.9M2015-04-10$33.0M$235.8M85%
Series B$37.4M2015-08-27$207.8M$1.5B85%
Series B$5.0M2016-12-02$27.8M$198.4M90%
Series C$50.0M2017-06-27$333.3M$2.0B90%
Series C$5.8M2019-08-20$38.3M$235.6M90%
Series C$70.0M2019-12-18$466.7M$2.9B90%
Series C$25.0M2020-07-31$166.7M$992.9M90%
Series C$60.3M2023-11-13$401.7M$684.0M90%
Series C$60.3M2023-11-13$401.7M$684.0M90%
Series D+$130.0M2024-07-02$1.1B$1.4B90%
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$15.0M2010-03-22
    • First recorded raise — entered as Series B.
    • 14 investors on this round.
  2. Series B$3.5M2011-11-07
    • Raised 20 mo later, in step with the ~14 mo sector norm.
    • Round 4.3× smaller than the prior — bridge or down round.
    • 1 investor on this round.
  3. Series B$22.0M2011-11-07
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 6.3× larger than the prior — scaling up.
    • 16 investors on this round.
  4. Series B$5.3M2014-04-07
    • Raised again after 29 mo — slower than the ~14 mo sector norm.
    • Round 4.2× smaller than the prior — bridge or down round.
    • Switched to Rule 506(b) (was Rule 06).
    • 11 investors on this round.
  5. Series B$6.0M2014-07-15
    • Came back fast: 3 mo vs the ~14 mo sector norm.
    • Round roughly the size of the prior one.
    • 2 investors on this round.
  6. Series B$4.5M2014-08-14
    • Came back fast: 1 mo vs the ~14 mo sector norm.
    • Round 1.3× smaller than the prior — bridge or down round.
    • 11 investors on this round.
  7. Series B$5.9M2015-04-10
    • Came back fast: 8 mo vs the ~14 mo sector norm.
    • Round 1.3× larger than the prior — scaling up.
    • 12 investors on this round.
  8. Series B$37.4M2015-08-27
    • Came back fast: 5 mo vs the ~14 mo sector norm.
    • Round 6.3× larger than the prior — scaling up.
    • 19 investors on this round.
  9. Series B$5.0M2016-12-02
    • Raised 15 mo later, in step with the ~14 mo sector norm.
    • Round 7.5× smaller than the prior — bridge or down round.
    • 1 investor on this round.
  10. Series C$50.0M2017-06-27
    • Came back fast: 7 mo vs the ~14 mo sector norm.
    • Round 10.0× larger than the prior — scaling up.
    • 11 investors on this round.
  11. Series C$5.8M2019-08-20
    • Raised again after 26 mo — slower than the ~14 mo sector norm.
    • Round 8.7× smaller than the prior — bridge or down round.
    • 10 investors on this round.
  12. Series C$70.0M2019-12-18
    • Came back fast: 4 mo vs the ~14 mo sector norm.
    • Round 12.2× larger than the prior — scaling up.
    • 26 investors on this round.
  13. Series C$25.0M2020-07-31
    • Came back fast: 7 mo vs the ~14 mo sector norm.
    • Round 2.8× smaller than the prior — bridge or down round.
    • 1 investor on this round.
  14. Series C$60.3M2023-11-13
    • Raised again after 39 mo — slower than the ~14 mo sector norm.
    • Round 2.4× larger than the prior — scaling up.
    • 2 investors on this round.
  15. Series C$60.3M2023-11-13
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round roughly the size of the prior one.
    • 2 investors on this round.
  16. Series D+$130.0M2024-07-02
    • Came back fast: 8 mo vs the ~14 mo sector norm.
    • Round 2.2× larger than the prior — scaling up.
    • 22 investors on this round.
Intelligence
2025 ~Q2
Modeled next raise · ~11mo cadence
$280.6M
Modeled next size est.range $182.4M$449.0M
2.2×
Last step-up
$31.2M/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
Carl Gordon23 other2011-11
Peter Barton Hutt13 other2010-03
CARL L. GORDON6 other2010-03
Werner Cautreels4 other2011-11
Edwin M. Kania, Jr.3 other2014-04
Omid Farokhzad3 other2011-11
Timothy A. Springer3 other2024-07
Omid C. Farokhzad2 other2016-12
Robert M. Langer2 other2014-04
Robert S. Langer, Jr.2 other2010-03
Scott D. Myers2 other2019-08
Aymeric S. Sallin1 other2023-11
Carl C. Gordon1 other2016-12
Carrie S. Cox1 other2023-11
TIMOTHY C. BARABE1 other2016-12
Alison Kei Schecter2019-08
Amir Barton Nashat2011-11
Amir Dunseth Nashat2019-12
Amir Kei Nashat2019-08
Amir L. Nashat2010-03
Amir M. Nashat2014-04
Aymeric Barton Sallin2011-11
Aymeric Dunseth Sallin2019-12
Aymeric Kei Sallin2019-08
Registry & provenance

Selecta 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
1453687
SEC CIK
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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.

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Frequently asked
How much funding has Selecta Biosciences Inc raised?
Selecta Biosciences Inc has raised approximately $445.6M in disclosed capital across 15 recorded financing rounds, aggregated from public filings.
What is Selecta Biosciences Inc's estimated valuation?
Provath's modeled valuation for Selecta Biosciences Inc is approximately $1.4B (modeled range $589.4M–$2.0B). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is Selecta Biosciences Inc at?
Selecta Biosciences Inc's latest modeled financing stage is Series D+. Its most recent recorded round closed around Tue Jul 02.
What does Selecta Biosciences Inc do and where is it based?
Selecta Biosciences Inc operates in the Biotechnology sector, based in GAITHERSBURG.
Explore related

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

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