Diligence memo · auto-generated · as of July 2, 2026

Prosensa Holding N.V.

Prosensa Holding N.V. looks fair against its niche peers and is dormant on financing cadence.

DeprioritizeFinancing has gone silent well past the sector's normal cadence — treat as inactive until outside confirmation of a live operation.

Businessfiled

Prosensa Holding N.V. operates in Biotechnology, based in LEIDEN.

No verified homepage on file yet — operating evidence is limited to the public record.

Capital & rounds (filed)filed

Prosensa Holding N.V. has raised $50M in disclosed capital across 1 recorded round, aggregated from public filings. Its latest round is modeled as Series C (a $40M–$100M round).

Largest single filing: $50M on 2014-11-26.

Most recent recorded round closed around 2014-11-26.

Valuation (modeled)modeled

Provath models Prosensa Holding N.V. at approximately $2.1B (range $156M–$5.4B). This is an algorithmic estimate from round sizes and same-niche peers — not a quoted or reported figure.

Read: Fair. Modeled value is 0.91× the median modeled value of Series C Biotechnology companies in 2013–2015 (41 peers) — value vs value, same stage and era. Within the normal band (91% of peer median) for its niche.

Financing rhythm & timingmixed

Last raise 11.6 yr ago; this sector typically re-raises about every 14 months.

Only one round on record and long silent — often defunct, acquired, or gone quiet.

Comparablesmixed

Capital scale ranks ahead of 82% of Biotechnology peers (4293 compared).

Modeled value ranks above 95% of those peers.

Closest niche peers: Antigenics LLC/DE, Naurex Inc., Fluidigm Corp, Tengion Inc, Spark Therapeutics, Inc..

Peoplefiled

11 named people on file across officers, directors and signatories.

Risks & flagsmixed

Financing has been silent well beyond sector cadence — possibly defunct, acquired, or paused.

No clearly named CEO/founder/principal in the surfaced records — key-person evidence is thin.