Isabella Bank

ISBA on Nasdaq. Isabella Bank sells bank accounts, loans and other banking services to local customers. Market value $284m.

Watch this stockFree. We tell you when something changes.

Price checks use the past 12 months to June 2026. Some use the latest annual report instead, as marked. 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 Financial services stocks that passed both tests

This is not advice. Check the numbers below.

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Return on equity
five annual reports to December 2025
9.1%five-year median

Yearly profit per dollar of owners' money: 9 cents. Above 10 is good.

Price to book
quarterly report to June 2026
1.1×

What you pay for each dollar of net assets: $1.14.

Earnings yield
past 12 months to June 2026
7.0%

Profit per $100 you pay: $7.02.

Quality score: 58 of 100. Price score: 90 of 100. Our list needs 70 on quality and 60 on price.

$37.29 a share, 12% above its 1-year low

Over the past year the price has ranged from $33.24 to $58.83.

Dividend: 2.8% a year

Paid every year for at least 5 years

Prices from Friday’s close (9 October).

Five years of cash, in billions

n/a
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20212022202320242025
Revenue
n/an/an/an/an/a
Operating margin
n/an/an/an/an/a
Debt to equity
n/an/an/an/an/a
Shares outstanding
0.01bn0.01bn0.01bn0.01bn0.01bn

Health checks

  • Free cash flow positiveDoesn't apply to banks and insurers
  • Accounting checksDoesn't apply to banks and insurers
  • DebtDoesn't apply to banks and insurers
  • Revenue growth, five yearsUnknown
  • Buying back its own sharesRoughly flat

The quarter to June 2026

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

  • Profit: $5 million, about the same as a year ago.
  • Spare cash over the past 12 months: $23 million, up from $21 million.
  • 1% fewer shares than a year ago. Each share owns a bit more of the company.
Profit by quarter
Profit by quarter
Quarter toAmount
September 2024$3m
December 2024$4m
March 2025$4m
June 2025$5m
September 2025$5m
December 2025$5m
March 2026$5m
June 2026$5m

From the company's quarterly reports to the SEC.

Dates

Next results (estimated)
n/a
Last annual report (10-K)
13 March 2026
Next quarterly (estimated, 10-Q)
9 November 2026

Who owns it

None of the long-term investors we follow own it. 59 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

1 investor owns more than 5%.

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

What insiders did

In the last 12 months, 10 insiders bought $126,770 of shares on the open market.

  • Bourland Jill
    Director
    Bought
    Date
    16 September 2026
    Shares
    8
    Price
    $39.40
    Value
    $300
  • Bourland Jill
    Director
    Bought
    Date
    17 August 2026
    Shares
    7
    Price
    $41.59
    Value
    $300
  • Bourland Jill
    Director
    Bought
    Date
    16 July 2026
    Shares
    8
    Price
    $39.07
    Value
    $300
  • Bourland Jill
    Director
    Bought
    Date
    16 June 2026
    Shares
    7
    Price
    $41.43
    Value
    $300
  • Bourland Jill
    Director
    Bought
    Date
    18 May 2026
    Shares
    7
    Price
    $41.05
    Value
    $300
  • Bourland Jill
    Director
    Bought
    Date
    16 April 2026
    Shares
    6
    Price
    $48.90
    Value
    $300
  • Bourland Jill
    Director
    Bought
    Date
    16 March 2026
    Shares
    7
    Price
    $44.03
    Value
    $300
  • Catlin Jon D
    Chief Credit Officer
    Bought
    Date
    2 March 2026
    Shares
    103
    Price
    $31.47
    Value
    $3,241
  • Huenemann Michael Kyle
    Chief Lending Officer
    Bought
    Date
    2 March 2026
    Shares
    61
    Price
    $31.47
    Value
    $1,920
  • McDonnell Neil Michael
    President, Director
    Bought
    Date
    2 March 2026
    Shares
    55
    Price
    $31.47
    Value
    $1,731

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 serious warning signs we check for were found. 1 thing worth knowing.

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 13 Mar 2026, plus the 10-Q filed 10 Aug 2026 and 13 later 8-Ks.

  • Changed auditor

    Worth knowing

    The company changed its auditor (the firm that checks its books) in the last two years.

    “On January 27, 2025, (the "Appointment Date") the Corporation appointed Plante & Moran, PLLC ("Plante") as its new independent registered public accounting firm for the fiscal year ending December 31, 2025.”

    From an 8-K filed 31 January 2025: Change of auditor. Read it in the filing

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

Cheap for a reason is the question the numbers cannot answer.

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.