Companies · Biotechnology

Antiva Biosciences, Inc.

Redwood City · Biotechnology

Diligence memoA one-page analyst read on Antiva Biosciences, Inc. — recommendation, valuation, rhythm, risks.
$96.8M
Total raised · real
8
Rounds
0.7×
Latest step-up
Top 11%
Sector rank · raised
Series B
Latest stage · inferred · Mon Apr 24 2023 00:00:00 GMT+0000 (Coordinated Universal Time)

Antiva Biosciences, Inc. looks over-valued against its niche peers and is at-risk 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.

Over-valued
  • Modeled value is 2.73× the median modeled value of Series B Biotechnology companies in 2022–2024 (197 peers) — value vs value, same stage and era.
At-risk
  • Last raise 3.2 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

Antiva Biosciences, Inc. is one of 4293 Biotechnology companies tracked from Redwood City. By capital raised it ranks among the largest (ahead of 90% 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
Rule 506(b)
Reg D exemption
21
Investors (latest)
2023-04-24
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$250M$500M$750M$1.0BSeed · 2013-02-26 Raised $1.1M (real) Modeled valuation $50M (est)Seed2013Pre-Seed · 2013-02-26 Raised $501K (real) Modeled valuation $28M (est)Pre-Seed2013Seed · 2014-06-24 Raised $1.1M (real) Modeled valuation $49M (est)Seed2014Seed · 2014-12-08 Raised $1.7M (real) Modeled valuation $77M (est)Seed2014Series A · 2015-05-27 Raised $8.9M (real) Modeled valuation $322M (est)Series A2015Series A · 2017-02-15 Raised $11M (real) Modeled valuation $403M (est)Series A2017Series A · 2017-02-15 Raised $15M (real) Modeled valuation $533M (est)Series A2017Series A · 2018-07-06 Raised $15M (real) Modeled valuation $542M (est)Series A2018Series B · 2021-10-25 Raised $16M (real) Modeled valuation $353M (est)Series B2021Series B · 2023-04-24 Raised $39M (real) Modeled valuation $458M (est)Series B2023Series B · 2023-04-24 Raised $27M (real) Modeled valuation $316M (est)Series B2023Cumulative $135M

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
Seed$1.1M · 2013
Bridge · Seed-stage$501K · 2013smaller follow-on
Seed extension$1.1M · 2014
Seed extension$1.7M · 2014
Series A$8.9M · 2015
Series A extension$11.1M · 2017
Series A extension$14.7M · 2017
Series A extension$15.0M · 2018
Series B$15.6M · 2021
Series B extension$38.5M · 2023
Series B extension$26.6M · 2023

Stages are modeled from round size (public records carry no series label). Ladder is contiguous — every modeled rung has a record.

Modeled valuation trajectory
$457.8M
Base estimate est.
$77.1M
Conservative case
$1.0B
Upside case
$214.1M
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 biotech sector profile. Directional, not a quoted figure.

Seed · modeled $50.0M · 2013-02-262013Pre-Seed · modeled $27.7M · 2013-02-26Seed · modeled $48.8M · 2014-06-24Seed · modeled $77.5M · 2014-12-08Series A · modeled $322.0M · 2015-05-27Series A · modeled $402.7M · 2017-02-15Series A · modeled $532.9M · 2017-02-15Series A · modeled $542.3M · 2018-07-06Series B · modeled $352.9M · 2021-10-25Series B · modeled $457.8M · 2023-04-24Series B · modeled $315.6M · 2023-04-242023
Model inputs · modeled:benchmark-stage-stepup-v1
18%
Dilution assumption
Implied ownership sold in the financing.
54%
Survival probability
36% low · 66% high
1.54×/yr
Annual markup
1.86×/yr upside case
3.2 yr
Elapsed time used
3.2 yr actual, capped for stale marks
biotech
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
12 mo
Avg between rounds
$9.5M/yr
Capital velocity
13.3 yr
On record since
2013
First round
11
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) 13× above median
This company$96.8M
Sector median$7.2M
Latest round — vs other Series B rounds in sector (real $, this stage) 1.5× above median
This company$26.6M
Sector median$17.5M
Modeled value — vs sector median (estimate, all stages) 7.1× above median
This company$457.8M
Sector median$64.2M

Raised more than 90% of sector peers (real $). Modeled value above 82% 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 #21 of 197.

This companyCohort peer
$100.0M$1.0B$10.0M$100.0M$1.0BCapital raised (log)Mt McKinley Medical Holding Corp USA · Series B Raised $40.0M · modeled $738.4M (est)YAP Therapeutics Inc · Series B Raised $30.1M · modeled $618.3M (est)Pinteon Therapeutics, Inc. · Series B Raised $39.2M · modeled $603.8M (est)OncXerna Therapeutics, Ltd. · Series B Raised $30.0M · modeled $591.4M (est)EpiBiologics, Inc. · Series B Raised $30.0M · modeled $570.2M (est)GIOGI Ltd · Series B Raised $27.3M · modeled $554.5M (est)SonoThera, Inc. · Series B Raised $30.4M · modeled $550.9M (est)Perceive Biotherapeutics, Inc. · Series B Raised $40.0M · modeled $544.6M (est)GIOCAN Ltd · Series B Raised $24.5M · modeled $498.6M (est)GIODIA Ltd · Series B Raised $24.5M · modeled $498.6M (est)GIOHEALTH Ltd · Series B Raised $24.5M · modeled $498.6M (est)Cerapedics Inc · Series B Raised $99.1M · modeled $492.3M (est)Antiva Biosciences, Inc. (this company) Raised $96.8M · modeled $457.8M (est)Antiva Biosciences, Inc.
CompanyStageRaised · realValue · estvs peer med.
Mt McKinley Medical Holding Corp USASeries B$40.0M$738.4M4.41×
YAP Therapeutics IncSeries B$30.1M$618.3M3.69×
Pinteon Therapeutics, Inc.Series B$39.2M$603.8M3.60×
OncXerna Therapeutics, Ltd.Series B$30.0M$591.4M3.53×
EpiBiologics, Inc.Series B$30.0M$570.2M3.40×
GIOGI LtdSeries B$27.3M$554.5M3.31×
SonoThera, Inc.Series B$30.4M$550.9M3.29×
Perceive Biotherapeutics, Inc.Series B$40.0M$544.6M3.25×
GIOCAN LtdSeries B$24.5M$498.6M2.97×
GIODIA LtdSeries B$24.5M$498.6M2.97×
GIOHEALTH LtdSeries B$24.5M$498.6M2.97×
Cerapedics IncSeries B$99.1M$492.3M2.94×
Antiva Biosciences, Inc. this companySeries B$96.8M$457.8M2.73×
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.
Seed$1.1M2013-02-26$5.6M$50.0M85%
Pre-Seed$501K2013-02-26$2.8M$27.7M85%
Seed$1.1M2014-06-24$5.5M$48.8M85%
Seed$1.7M2014-12-08$8.7M$77.5M85%
Series A$8.9M2015-05-27$40.5M$322.0M85%
Series A$11.1M2017-02-15$50.6M$402.7M90%
Series A$14.7M2017-02-15$67.0M$532.9M90%
Series A$15.0M2018-07-06$68.2M$542.3M90%
Series B$15.6M2021-10-25$86.9M$352.9M90%
Series B$38.5M2023-04-24$214.1M$457.8M90%
Series B$26.6M2023-04-24$147.6M$315.6M90%
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. Seed$1.1M2013-02-26
    • First recorded raise — entered as Seed.
    • 18 investors on this round.
  2. Pre-Seed$501K2013-02-26
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 2.2× smaller than the prior — bridge or down round.
    • 6 investors on this round.
  3. Seed$1.1M2014-06-24
    • Raised 16 mo later, in step with the ~14 mo sector norm.
    • Round 2.2× larger than the prior — scaling up.
    • Switched to Rule 506(b) (was Rule 06).
    • 14 investors on this round.
  4. Seed$1.7M2014-12-08
    • Came back fast: 5 mo vs the ~14 mo sector norm.
    • Round 1.6× larger than the prior — scaling up.
    • 19 investors on this round.
  5. Series A$8.9M2015-05-27
    • Came back fast: 6 mo vs the ~14 mo sector norm.
    • Round 5.1× larger than the prior — scaling up.
    • 26 investors on this round.
  6. Series A$11.1M2017-02-15
    • Raised again after 21 mo — slower than the ~14 mo sector norm.
    • Round roughly the size of the prior one.
    • 13 investors on this round.
  7. Series A$14.7M2017-02-15
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 1.3× larger than the prior — scaling up.
    • 15 investors on this round.
  8. Series A$15.0M2018-07-06
    • Raised 17 mo later, in step with the ~14 mo sector norm.
    • Round roughly the size of the prior one.
    • 8 investors on this round.
  9. Series B$15.6M2021-10-25
    • Raised again after 40 mo — slower than the ~14 mo sector norm.
    • Round roughly the size of the prior one.
    • 20 investors on this round.
  10. Series B$38.5M2023-04-24
    • Raised 18 mo later, in step with the ~14 mo sector norm.
    • Round 2.5× larger than the prior — scaling up.
    • 21 investors on this round.
  11. Series B$26.6M2023-04-24
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 1.5× smaller than the prior — bridge or down round.
    • 21 investors on this round.
Intelligence
2024 ~Q2
Modeled next raise · ~12mo cadence
$26.6M
Modeled next size est.range $26.6M$42.5M
0.7×
Last step-up
$9.5M/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
Wende Hutton15 other2015-05
David Kabakoff6 other2015-05
Michael Cannon3 other2015-05
Michael J Sullivan3 other2013-02
Vinzenz Ploerer3 other2021-10
Benjamin Rovinski2 other2021-10
Jenny Yip2 other2021-10
Steven James2 other2015-05
Steven P. James2 other2017-02
Brian Goodman1 other2023-04
David P. Kabakoff1 other2017-02
GAIL MADERIS1 other2017-02
John W. Sayward1 other2014-12
Michael D. Cannon1 other2013-02
Vinzenz P. Ploerer1 other2017-02
Wende S. Hutton1 other2018-07
Beni Rovinski2023-04
Benjamin P. Rovinski2017-02
Clifford Samuel2021-10
David P. Kabakoff, Ph.D.2018-07
Elaine Chien2023-04
Florencia Segal2023-04
John Sayward2015-05
Karl Y Hostetler2013-02
Registry & provenance

Antiva 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
1563355
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.

CompanySectorStageValue · estMatch
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SELLAS Life Sciences Group, Inc.BiotechnologySeries B$148.8M88%
Advaxis, Inc.BiotechnologySeries A$3.2M88%
Protea Biosciences Group, Inc.BiotechnologySeries A$22.8M88%
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Frequently asked
How much funding has Antiva Biosciences, Inc. raised?
Antiva Biosciences, Inc. has raised approximately $96.8M in disclosed capital across 8 recorded financing rounds, aggregated from public filings.
What is Antiva Biosciences, Inc.'s estimated valuation?
Provath's modeled valuation for Antiva Biosciences, Inc. is approximately $457.8M (modeled range $77.1M–$1.0B). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is Antiva Biosciences, Inc. at?
Antiva Biosciences, Inc.'s latest modeled financing stage is Series B. Its most recent recorded round closed around Mon Apr 24.
What does Antiva Biosciences, Inc. do and where is it based?
Antiva Biosciences, Inc. operates in the Biotechnology sector, based in Redwood City.
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