Paterna Biosciences
Paterna BioSciences HoldCo Inc.
Male infertility care is lagging. Paterna is changing that with in vitro spermatogenesis. Explore our science and meet the team.
paternabio.com · Salt Lake City, UT
Funding event
The round itself, as filedInferred stageSeries A
Sold of offered$6.3M of $11.2M
Filed2026-08-12
Days since filing53
- Exemption claimed
- Rule 506(b)
- First-ever Form D
- No
- Date of first sale
- 2026-07-30
Investors
No investors named: Form D does not list them
Officers on the filing
Names and roles as filed; addresses are never stored- Alexander PastuszakExecutive Officer · Director
- Daniel MitchellExecutive Officer
- James HotalingDirector
- Cynthia TsaiDirector
- Ryan MorleyDirector
- Abraham Meir RosenbaumDirector
Health flags
Three flags, each with the raw inputs behind it · as of 2026-10-03UndersubscribedNot flagged56.4% sold2.1 months since first sale
Prior raiseNot flaggedPrior raise not known—
AmendedNot flaggedNo amendmentNo D/A on file
Open roles
On the employer's own careers page · checked 2026-09-240
Pre-posting windowNot enough dataShown once this sector and stage have 20 observed lags from filing to first posting.
No open roles foundWe read careers pages daily.
Also raised in Health & bio
Same sector, 28 days to 2026-10-04Altay TherapeuticsSeries A · $15.7M of $45.1M · San Carlos, CAQuietCarebilitySeries A · $8.8M of $8.8M · Richardson, TXQuiet
75 rounds in Health & bio in the 28 days to 2026-10-03, against 71 in the 28 days before.