Security key
09062W204
BIOLIFE SOLUTIONS INC - Common Stock, par value $0.001 per share (BLFS)
CUSIP: 09062W204
Q1 2019 13F Holders as of 31 Mar 2019
- Security type / class
- Equity / Common Stock, par value $0.001 per share
- Total 13F shares
- 8,599,553
- Total 13F value
- $153,847,483
- Share change
- +1,029,077
- SEC-reported price per share
- $17.89
- Number of holders
- 65
- Value change
- +$19,590,648
- Number of buys
- 41
- Number of sells
- 16
- Shares outstanding
- 49,042,938
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2019
Institutions
65
Top holders
10
BLFS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2019
Previous quarter: Q4 2018
BIOLIFE SOLUTIONS INC SEC filings
BIOLIFE SOLUTIONS INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 09062W204
Recent filing periods:
Ownership snapshot
Top reported holders of BLFS - BIOLIFE SOLUTIONS INC - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Casdin Capital, LLC
Disclosed value leader
Casdin Capital, LLC
Comparable rows
15/15
Latest evidence
31 Dec 2018
13F
Lead comparable stake: 5%
Showing 1-6 of 15 holder rows.
Quick read
Casdin Capital, LLC leads the comparable SEC ownership view at 5%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Casdin Capital, LLC's linked filing trail.
Comparable ownership
Top 5
Casdin Capital, LLC
5%
SANDLER CAPITAL MANAGEMENT
2%
VANGUARD GROUP INC
1.1%
RENAISSANCE TECHNOLOGIES LLC
0.9%
DRIEHAUS CAPITAL MANAGEMENT LLC
0.89%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Casdin Capital, LLC |
13F
Company
|
5%
|
$29,216,000
2,428,571 shares
|
— | 31 Dec 2018 |
| SANDLER CAPITAL MANAGEMENT |
13F
Company
|
2%
|
$11,645,000
968,073 shares
|
— | 31 Dec 2018 |
| VANGUARD GROUP INC |
13F
Company
|
1.1%
|
$6,704,000
557,268 shares
|
— | 31 Dec 2018 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
0.9%
|
$5,335,000
443,500 shares
|
— | 31 Dec 2018 |
| DRIEHAUS CAPITAL MANAGEMENT LLC |
13F
Company
|
0.89%
|
$5,223,000
434,127 shares
|
— | 31 Dec 2018 |
| Schonfeld Strategic Advisors LLC |
13F
Company
|
0.69%
|
$4,051,000
336,700 shares
|
— | 31 Dec 2018 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2019
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
65
Shares
8,599,553
Rows available
65
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2019 vs Q4 2018 Across Filers
Q4 2018 holders
52
Q1 2019 holders
65
Holder diff
13
| Investor | Q4 2018 Shares | Q1 2019 Shares | Share Diff | Share Chg % | Q4 2018 value | Q1 2019 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend