Biolife Solutions

BLFS on Nasdaq. Biolife Solutions sells biopreservation media and cell processing tools to cell and gene therapy developers. Market value $1.9bn.

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Price checks use the past 12 months to June 2026. Quality checks use five annual reports, the latest for the year to December 2025.

Should I look at this?

Not a fit for our list right now

See Health care stocks that passed both tests

This is not advice. Check the numbers below.

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Cash yield
past 12 months to June 2026
0.4%low

For every $100 of what the whole company costs, it produced $0.43 of spare cash in the past 12 months. A savings account pays about $4.

Price to profit
past 12 months to June 2026
1067.1×full

You pay 1067.1 years of operating profit for the business. The average large US company costs around 18.

Return on capital
five annual reports to December 2025
-3.8%five-year median

Each dollar kept in the business earns -4 cents a year. Above 10 is good.

Quality score: 48 of 100. Price score: 19 of 100. Our list needs 70 on quality and 60 on price.

$38.61 a share, 116% above its 1-year low

Over the past year the price has ranged from $17.86 to $39.76.

Pays no dividend

Prices from Tuesday’s close (6 October).

Five years of cash, in billions

-0.0
-0.0
-0.0
0.0
0.0
0.0
2021202220232024202512 monthsto Jun '26
Revenue
$119m$76m$68m$75m$96m
Operating margin
-29.5%-7.8%-25.3%-6.0%-17.3%
Debt to equity
0.020.070.080.050.01
Shares outstanding
0.04bn0.04bn0.05bn0.05bn0.05bn

Health checks

  • Free cash flow positive2 of 5 years
  • Accounting looks honest (Beneish)Nothing unusual
  • Financial strength (Piotroski)5 of 9
  • Profit backed by cash (accruals)Yes
  • Debt0.01× equity
  • Revenue growth, five yearsStrong, 14.9% a year
  • Buying back its own sharesNo, 14% more shares since 2021

The quarter to June 2026

How the business did, compared with the same quarter a year earlier.

  • Sales: $28 million last quarter, up 21% on a year ago.
  • Profit: $45 million, after a loss of $16 million a year ago.
  • It keeps 2 cents of each $1 of sales as operating profit, after losing 20 cents a year earlier.
  • 3% more shares than a year ago. Each share owns a bit less of the company.
  • It has $24 million more cash than debt, up from $22 million a year ago.
Sales by quarter
Sales by quarter
Quarter toAmount
September 2024$21m
December 2024Not reported
March 2025$22m
June 2025$23m
September 2025$28m
December 2025$19m
March 2026$28m
June 2026$28m
Profit by quarter
Profit by quarter
Quarter toAmount
September 2024-$2m
December 2024Not reported
March 2025-$448,000
June 2025-$16m
September 2025$621,000
December 2025$11m
March 2026$1m
June 2026$45m

From the company's quarterly reports to the SEC.

Dates

Next results (estimated)
n/a
Last annual report (10-K)
26 February 2026
Next quarterly (estimated, 10-Q)
5 November 2026

Who owns it

2 long-term investors we follow own it, up from 1 last quarter. 216 funds in all.

Jun '25
Dec '25
Jun '26
Largest holders overall

From 13F filings for the quarter ended 30 June 2026.

Big holders and activists

4 investors own more than 5%.

  • Casdin Capital, LLC
    Passive investor
    at least 9.7%0.0 pts
    (filed with 3 related holders)
    Since 4 June 2026
  • Casdin Partners Master Fund, L.P.
    Passive investor
    at least 9.7%−2.7 pts
    (filed with 2 related holders)
    Since 20 May 2026
    What they said

    The Reporting Persons have acquired their Shares of the Issuer for investment. The Reporting Persons have no plans or proposals as of the date of this filing which, other than as expressly set forth below, would relate to or would result in: (a) any extraordinary corporate…

    Read the filing
  • 7.5%−6.0 pts
    Since 31 August 2026
  • Glazer Capital, LLC
    Passive investor
    at least 5.5%
    (filed with 1 related holder)
    Since 17 September 2026
  • Invesco Ltd.
    Passive investor
    Sold down below 5%
    Since 31 March 2026
  • The Vanguard Group
    Passive investor
    Sold down below 5%
    Since 13 March 2026

From Schedule 13D and 13G filings: anyone owning more than 5% must file one.

What insiders did

No insider bought shares on the open market in the last 12 months. 9 sold $7m, $1m of it under preset trading plans.

  • Foster Karen A.
    Chief Quality and Operations
    Sold
    under a preset trading plan
    Date
    23 March 2026
    Shares
    2,577
    Price
    $19.17
    Value
    $49,401
  • Foster Karen A.
    Chief Quality and Operations
    Sold
    Date
    9 March 2026
    Shares
    500
    Price
    $20.00
    Value
    $10,000
  • Foster Karen A.
    Chief Quality and Operations
    Sold
    Date
    5 March 2026
    Shares
    96,923
    Price
    $20.15
    Value
    $2m
  • Werner Sean
    Chief Technology Officer
    Sold
    under a preset trading plan
    Date
    3 March 2026
    Shares
    111
    Price
    $20.74
    Value
    $2,302
  • Foster Karen A.
    Chief Quality and Operations
    Sold
    under a preset trading plan
    Date
    3 March 2026
    Shares
    418
    Price
    $20.74
    Value
    $8,669
  • Mathew Aby J.
    EVP & Chief Scientific Officer
    Sold
    under a preset trading plan
    Date
    3 March 2026
    Shares
    529
    Price
    $20.74
    Value
    $10,971
  • Wichterman Troy
    Chief Financial Officer
    Sold
    under a preset trading plan
    Date
    3 March 2026
    Shares
    588
    Price
    $20.74
    Value
    $12,195
  • Aebersold Sarah
    Chief Human Resources Officer
    Sold
    under a preset trading plan
    Date
    3 March 2026
    Shares
    219
    Price
    $20.74
    Value
    $4,542
  • Berard Todd
    Chief Marketing Officer
    Sold
    under a preset trading plan
    Date
    3 March 2026
    Shares
    353
    Price
    $20.74
    Value
    $7,321
  • Wichterman Troy
    Chief Financial Officer
    Sold
    under a preset trading plan
    Date
    6 January 2026
    Shares
    990
    Price
    $25.59
    Value
    $25,334

From Form 4 filings: insiders must report trades in their own company's shares within two days.

Warning signs in its filings

Problems the company itself reported to the SEC, in its own words.

None of the warning signs we check for were found.

We look for five warning signs: doubt it can keep going, weak checks on its own accounts, a notice that its past accounts can't be relied on, a change of auditor, and one customer bringing in a big share of sales. We don't check lawsuits, investigations or debt yet.

We checked the auditor's report, internal controls, restatement notices, auditor changes and big customers in the 10-K filed 26 Feb 2026, plus the 10-Q filed 6 Aug 2026 and 7 later 8-Ks.

A 10-K is the yearly report every US company files with the SEC. An 8-K is a short notice of a big event.

What could go wrong

  • It isn't cheap on profits: 1067.1× operating profit.

Whether the price already reflects the risks is what the deep dive is for.

The deep dive

Everything above is arithmetic on public filings. The deep dive reads the last ten years of annual reports, the proxy statements, and the earnings calls, then argues the case the way Buffett, Klarman, and Hohn would, and checks every claim against the source.

  • What the business is worth, as a range, and the margin of safety at today’s price
  • Prices to start buying, buy, and buy hard
  • The three things that would make this a mistake
  • Every number footnoted to the filing it came from
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What a finished deep dive looks like

Not advice. Numbers on this page come from SEC filings and are updated each night; prices are updated again after the US market closes. The five-year figures are rounded.