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Opperman Sarah R

Disclosed activity across 1 company

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1414
SEC CIK
0001554598

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
ISABELLA BANK CORPISBA · Entity 1401DirectorSeptember 01, 2026September 03, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

ISABELLA BANK CORP

Report date September 01, 2026 · Filed September 03, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
commonSEC Table I · non-derivativeDirect24,586.913 Reported balance After 2026-09-01 transaction · row 1
1 source row

Row 1 · 2026-09-01 · Grant · Acquired 46 · Balance 24,586.913

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 04, 2020 Filed Aug 5, 2020 20:08 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 84.3882 $16.59 $1,400.00
Disclosure

SEC source: 0000842517-20-000104 · wf-form4_159665810767933.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,289.5926

F1 · balance_after: Includes shares acquired through quarterly dividend reinvestment.

Read SEC document
April 29, 2020 Filed Apr 30, 2020 16:28 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 157.7035 $17.20 $2,712.50
Disclosure

SEC source: 0000842517-20-000067 · wf-form4_158826410839440.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,981.5456

F1 · kind: Purchase with quarterly director fees pursuant to the Isabella Bank Corporation And Related Companies Deferred Compensation Plan For Directors.

Read SEC document
April 24, 2020 Filed Apr 28, 2020 13:04 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 9.4937 $15.80 $150.00
Disclosure

SEC source: 0000842517-20-000055 · wf-form4_158807906199067.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,823.8421

F1 · kind: Purchase with quarterly director fees pursuant to the Isabella Bank Corporation And Related Companies Deferred Compensation Plan For Directors.

F2 · balance_after: Includes shares acquired through quarterly dividend reinvestment.

Read SEC document
March 18, 2020 Filed Mar 19, 2020 17:11 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 648.6486 $18.50 $12,000.00
Disclosure

SEC source: 0000842517-20-000042 · wf-form4_158463787570557.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,593.3099

Read SEC document
February 07, 2020 Filed Feb 11, 2020 20:02 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 6.1984 $24.20 $150.00
Disclosure

SEC source: 0000842517-20-000020 · wf-form4_158145131559449.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,944.6613

F1 · kind: Purchase with quarterly director fees pursuant to the Isabella Bank Corporation And Related Companies Deferred Compensation Plan For Directors.

Read SEC document
January 31, 2020 Filed Feb 4, 2020 23:47 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 105.3719 $24.20 $2,550.00
Disclosure

SEC source: 0000842517-20-000015 · wf-form4_158086004140547.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,938.4629

F1 · kind: Purchase with quarterly director fees pursuant to the Isabella Bank Corporation And Related Companies Deferred Compensation Plan For Directors.

Read SEC document
October 31, 2019 Filed Nov 1, 2019 19:50 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 110.8696 $23.00 $2,550.00
Disclosure

SEC source: 0000842517-19-000163 · wf-form4_157263784342807.xml · nonDerivative · entry 2

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,629.6407

Read SEC document
October 30, 2019 Filed Nov 1, 2019 19:50 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 6.5646 $22.85 $150.00
Disclosure

SEC source: 0000842517-19-000163 · wf-form4_157263784342807.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,518.7711

Read SEC document
July 31, 2019 Filed Aug 2, 2019 18:07 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 114.1401 $22.56 $2,575.00
Disclosure

SEC source: 0000842517-19-000124 · wf-form4_156476922217224.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,361.1215

F1 · kind: Purchase with quarterly director fees pursuant to the Isabella Bank Corporation And Related Companies Deferred Compensation Plan For Directors.

Read SEC document
April 26, 2019 Filed May 2, 2019 00:59 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 101.6304 $23.00 $2,337.50
Disclosure

SEC source: 0000842517-19-000087 · wf-form4_155675875575373.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,049.0006

Read SEC document
February 08, 2019 Filed Feb 12, 2019 21:18 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 6.424 $23.35 $150.00
Disclosure

SEC source: 0000842517-19-000025 · wf-form4_155000628422436.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,806.5791

Read SEC document
February 01, 2019 Filed Feb 5, 2019 21:12 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 122.4664 $22.25 $2,724.88
Disclosure

SEC source: 0000842517-19-000019 · wf-form4_154940112665783.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,800.1551

Read SEC document
January 09, 2019 Filed Jan 15, 2020 00:21 UTC ISABELLA BANK CORP ISBA · Entity 1401 Othercommon 1,103 $0.00 $0.00
Disclosure

SEC source: 0000842517-20-000007 · wf-form5_157904751285068.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,780.6887

Read SEC document
December 31, 2018 Filed Jan 4, 2019 00:58 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 232.693 $23.31 $5,424.07
Disclosure

SEC source: 0000842517-19-000010 · wf-form4_154656347370640.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,677.6887

Read SEC document
November 02, 2018 Filed Feb 14, 2019 22:20 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 12.1212 $24.75 $300.00
Disclosure

SEC source: 0000842517-19-000033 · wf-form5_155018280883734.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,305.157

Read SEC document
October 31, 2018 Filed Nov 2, 2018 20:08 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 105.5 $25.00 $2,637.50
Disclosure

SEC source: 0000842517-18-000168 · wf-form4_154118929741513.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,283.0208

Read SEC document
September 28, 2018 Filed Oct 2, 2018 23:14 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 174.963 $26.92 $4,710.00
Disclosure

SEC source: 0000842517-18-000159 · wf-form4_153852207372878.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,101.6924

Read SEC document
September 28, 2018 Filed Mar 15, 2019 19:55 UTC Amendment ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 179.235 $26.92 $4,825.01
Disclosure

SEC source: 0000842517-19-000055 · wf-form4a_155267969818888.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,187.5358

Read SEC document
August 10, 2018 Filed Aug 13, 2018 20:41 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 378.0718 $26.45 $10,000.00
Disclosure

SEC source: 0000842517-18-000142 · wf-form4_153419288673695.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,886.0694

Read SEC document
August 02, 2018 Filed Aug 3, 2018 12:35 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 87.5468 $26.70 $2,337.50
Disclosure

SEC source: 0000842517-18-000132 · wf-form4_153329973052224.xml · nonDerivative · entry 2

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,507.9975

Read SEC document
August 02, 2018 Filed Aug 3, 2018 12:35 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 22.5141 $26.65 $600.00
Disclosure

SEC source: 0000842517-18-000132 · wf-form4_153329973052224.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,420.4508

Read SEC document
June 29, 2018 Filed Jul 3, 2018 20:53 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 205.071 $26.82 $5,500.00
Disclosure

SEC source: 0000842517-18-000121 · wf-form4_153065115877459.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,397.9366

Read SEC document
June 29, 2018 Filed Mar 15, 2019 19:57 UTC Amendment ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 210.664 $26.82 $5,650.01
Disclosure

SEC source: 0000842517-19-000059 · wf-form4a_155267985443090.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,403.5836

Read SEC document
May 02, 2018 Filed May 3, 2018 20:55 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 101.8519 $27.00 $2,750.00
Disclosure

SEC source: 0000842517-18-000092 · wf-form4_152538088705104.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,083.4318

Read SEC document
March 30, 2018 Filed Apr 4, 2018 01:02 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 195.081 $27.04 $5,274.99
Disclosure

SEC source: 0000842517-18-000081 · wf-form4_152280375140667.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,913.0991

Read SEC document
March 08, 2018 Filed Mar 12, 2018 21:38 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 380.2281 $26.30 $10,000.00
Disclosure

SEC source: 0000842517-18-000057 · wf-form4_152089067224094.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,681.9121

Read SEC document
February 01, 2018 Filed Feb 5, 2018 23:10 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 95.8742 $27.51 $2,637.50
Disclosure

SEC source: 0000842517-18-000026 · wf-form4_151787223289917.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,301.684

Read SEC document
January 02, 2018 Filed Jan 5, 2018 00:19 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 199.164 $28.40 $5,656.26
Disclosure

SEC source: 0000842517-18-000016 · wf-form4_151511158409724.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,144.7306

Read SEC document
December 13, 2017 Filed Dec 15, 2017 13:58 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 356.5062 $28.05 $10,000.00
Disclosure

SEC source: 0000842517-17-000216 · wf-form4_151334628860531.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,913.2716

Read SEC document
October 02, 2017 Filed Oct 5, 2017 01:58 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 318.73 $28.59 $9,112.49
Disclosure

SEC source: 0000842517-17-000187 · wf-form4_150716867287079.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,446.493

Read SEC document
July 03, 2017 Filed Jul 6, 2017 21:10 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 183.271 $27.93 $5,118.76
Disclosure

SEC source: 0000842517-17-000139 · wf-form4_149937540303191.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,097.767

Read SEC document
April 17, 2017 Filed Apr 19, 2017 21:06 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 361.6636 $27.65 $10,000.00
Disclosure

SEC source: 0000842517-17-000098 · wf-form4_149263594893182.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,888.061

Read SEC document
April 03, 2017 Filed Apr 5, 2017 21:32 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 330.605 $27.79 $9,187.51
Disclosure

SEC source: 0000842517-17-000092 · wf-form4_149142792075323.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,526.3974

Read SEC document
December 31, 2016 Filed Jan 4, 2017 23:31 UTC ISABELLA BANK CORP ISBA · Entity 1401 Othercommon 21.499 $27.83 $598.32
Disclosure

SEC source: 0000842517-17-000020 · wf-form4_148357265120969.xml · nonDerivative · entry 2

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,119.6441

F1 · kind: Dividend Reinvestment Earnings

Read SEC document
December 31, 2016 Filed Jan 4, 2017 23:31 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 66.25 $27.83 $1,843.74
Disclosure

SEC source: 0000842517-17-000020 · wf-form4_148357265120969.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,098.1451

Read SEC document
December 21, 2016 Filed Dec 22, 2016 13:48 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 354.6099 $28.20 $10,000.00
Disclosure

SEC source: 0000842517-16-000372 · wf-form4_148241447022397.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,981.0709

Read SEC document
October 03, 2016 Filed Oct 6, 2016 22:14 UTC Amendment ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 361.0108 $27.70 $10,000.00
Disclosure

SEC source: 0000842517-16-000348 · wf-form4a_147579205938404.xml · nonDerivative · entry 4

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,626.461

Read SEC document
September 30, 2016 Filed Oct 4, 2016 21:36 UTC ISABELLA BANK CORP ISBA · Entity 1401 Othercommon 20.769 $27.76 $576.55
Disclosure

SEC source: 0000842517-16-000339 · wf-form4_147561699953703.xml · nonDerivative · entry 4

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,626.461

F1 · kind: Dividend Reinvestment Earnings

Read SEC document
September 30, 2016 Filed Oct 4, 2016 21:36 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 361.0108 $27.70 $10,000.00
Disclosure

SEC source: 0000842517-16-000339 · wf-form4_147561699953703.xml · nonDerivative · entry 3

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,605.692

Read SEC document
September 30, 2016 Filed Oct 4, 2016 21:36 UTC ISABELLA BANK CORP ISBA · Entity 1401 Othercommon 44.2041 $27.66 $1,222.69
Disclosure

SEC source: 0000842517-16-000339 · wf-form4_147561699953703.xml · nonDerivative · entry 2

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,244.6812

F1 · kind: Dividend Reinvestment Earnings

Read SEC document
September 30, 2016 Filed Oct 4, 2016 21:36 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 102.666 $27.76 $2,850.01
Disclosure

SEC source: 0000842517-16-000339 · wf-form4_147561699953703.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,200.4771

Read SEC document
September 30, 2016 Filed Oct 6, 2016 22:14 UTC Amendment ISABELLA BANK CORP ISBA · Entity 1401 Othercommon 44.2041 $27.68 $1,223.57
Disclosure

SEC source: 0000842517-16-000348 · wf-form4a_147579205938404.xml · nonDerivative · entry 3

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,265.4502

F1 · kind: Dividend Reinvestment Earnings

Read SEC document
September 30, 2016 Filed Oct 6, 2016 22:14 UTC Amendment ISABELLA BANK CORP ISBA · Entity 1401 Othercommon 20.769 $27.76 $576.55
Disclosure

SEC source: 0000842517-16-000348 · wf-form4a_147579205938404.xml · nonDerivative · entry 2

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,221.2461

F1 · kind: Dividend Reinvestment Earnings

Read SEC document
September 30, 2016 Filed Oct 6, 2016 22:14 UTC Amendment ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 102.666 $27.76 $2,850.01
Disclosure

SEC source: 0000842517-16-000348 · wf-form4a_147579205938404.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,200.4771

Read SEC document
March 31, 2016 Filed Feb 15, 2017 01:35 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 36.8641 $29.00 $1,069.06
Disclosure

SEC source: 0000842517-17-000051 · wf-form5_148712252686358.xml · nonDerivative · entry 2

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,612.1072

Read SEC document
March 31, 2016 Filed Feb 15, 2017 01:35 UTC ISABELLA BANK CORP ISBA · Entity 1401 Purchasecommon 95.383 $28.70 $2,737.49
Disclosure

SEC source: 0000842517-17-000051 · wf-form5_148712252686358.xml · nonDerivative · entry 1

Opperman Sarah R · CIK 0001554598 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,557.6551

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.