Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13G

Passive or exempt beneficial ownership filing.

Ownership

9.7%

Beneficial ownership of this reported class.

Shares

4,757,165 shares

Shares beneficially owned as disclosed.

Event date

04 Jun 2026

Date tied to the ownership event or amendment.

Accepted by SEC

04 Jun 2026

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
BLFS
Shares outstanding
49,042,938 shares
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
SCHEDULE 13G
Accepted by SEC
04 Jun 2026, 18:36:43 UTC
Event date
04 Jun 2026
Prior SEC filing
22 May 2026
Source filing
View source filing

Key filing fact

Casdin Capital, LLC disclosed 9.7% ownership in BIOLIFE SOLUTIONS INC Common Stock, par value $0.001 per share (BLFS) on 04 Jun 2026.

Key facts

  • Casdin Capital, LLC filed SCHEDULE 13G for BIOLIFE SOLUTIONS INC Common Stock, par value $0.001 per share (BLFS).
  • Disclosed ownership: 9.7%.
  • Date of event: 04 Jun 2026.

Change

  • Previous schedule filing date: 22 May 2026.
  • Current filing was accepted on 04 Jun 2026, 18:36.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (4)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
Casdin Capital, LLC 9.7% 4,757,165 0 4,757,165 /s/ Eli Casdin Eli Casdin, Managing Member
Casdin Partners Master Fund, L.P. 9.7% 4,757,165 0 4,757,165 s/ Eli Casdin Eli Casdin, Managing Member of its General Partner
Casdin Partners GP, LLC 9.7% 4,757,165 0 4,757,165 /s/ Eli Casdin Eli Casdin, Managing Member
Eli Casdin 9.7% 4,757,165 0 4,757,165 /s/ Eli Casdin Eli Casdin
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .