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person · Reporting owner

Serbun Joseph F

Disclosed activity across 2 companies

Tapewire entity
52843
SEC CIK
0001741822

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
COMMUNITY FINANCIAL SYSTEM, INC.CBU · Entity 4178President, Retail BankingOctober 02, 2022October 14, 2022
Pathfinder Bancorp, Inc.PBHC · Entity 6777Senior Vice PresidentApril 08, 2026April 10, 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.

COMMUNITY FINANCIAL SYSTEM, INC.

Report date October 02, 2022 · Filed October 14, 2022

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect13,245.6573 Ending reported balance After 2022-10-14 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2022-10-02 · Tax withholding · Disposed 1,119 · Balance 12,762.6573

F1: Payment of tax liability associated with vesting of restricted stock award.

Row 2 · 2022-10-14 · Grant · Acquired 483 · Balance 13,245.6573

F2: Granted pursuant to the Retirement and Release Agreement filed as Exhibit 10.2 to Community Bank System's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 26, 2022.

Common StockSEC Table I · non-derivativeIndirectBy 401(k) Plan1,866.1152 Reported balance Holding disclosure · report date 2022-10-02 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 1,866.1152

Filing footnotes · ownership attribution and instrument terms

F1: Payment of tax liability associated with vesting of restricted stock award.

F2: Granted pursuant to the Retirement and Release Agreement filed as Exhibit 10.2 to Community Bank System's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 26, 2022.

Pathfinder Bancorp, Inc.

Report date April 08, 2026 · Filed April 10, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy ESOP4 Reported balance Holding disclosure · report date 2026-04-08 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 4

F1: Reflects ESOP shares allocated April 2026.

Common StockSEC Table I · non-derivativeDirect16,000 Reported balance Holding disclosure · report date 2026-04-08 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 16,000

Filing footnotes · ownership attribution and instrument terms

F1: Reflects ESOP shares allocated April 2026.

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
January 31, 2025 Filed Feb 4, 2025 22:44 UTC Pathfinder Bancorp, Inc. PBHC · Entity 6777 GrantCommon Stock 16,000 $0.00 $0.00
Disclosure

SEC source: 0001437749-25-002780 · rdgdoc.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,000

F1 · shares: Shares of restricted stock vest at a rate of 25% per year commencing on January 31, 2026.

Read SEC document
October 14, 2022 Filed Oct 14, 2022 16:36 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 GrantCommon Stock 483 $0.00 $0.00
Disclosure

SEC source: 0001127602-22-023928 · form4.xml · nonDerivative · entry 2

Serbun Joseph F · CIK 0001741822 · President, Retail Banking

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,245.6573

F2 · shares: Granted pursuant to the Retirement and Release Agreement filed as Exhibit 10.2 to Community Bank System's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 26, 2022.

Read SEC document
October 02, 2022 Filed Oct 14, 2022 16:36 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Tax withholdingCommon Stock 1,119 $60.97 $68,225.43
Disclosure

SEC source: 0001127602-22-023928 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · President, Retail Banking

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,762.6573

F1 · kind: Payment of tax liability associated with vesting of restricted stock award.

Read SEC document
March 15, 2022 Filed Mar 16, 2022 21:21 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 GrantStock Option · Derivative 2,912 $0.00 Strike: $72.51 $0.00
Disclosure

SEC source: 0001127602-22-009506 · form4.xml · derivative · entry 3

Serbun Joseph F · CIK 0001741822 · President, Retail Banking

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,912

Underlying: Common Stock · 2,912 shares

Expires 2032-03-15

F2 · derivative.exercise_date: The option vests ratably on March 15, 2023, 2024, 2025, 2026, and 2027.

Read SEC document
March 15, 2022 Filed Mar 16, 2022 21:21 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 GrantCommon Stock 724 $0.00 $0.00
Disclosure

SEC source: 0001127602-22-009506 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · President, Retail Banking

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,881.6573

Read SEC document
March 04, 2022 Filed Mar 9, 2022 00:03 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Tax withholdingCommon Stock 296 $72.94 $21,590.24
Disclosure

SEC source: 0001127602-22-008692 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Banking Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,157.6573

F1 · balance_after: Includes 240.2565 shares acquired pursuant to the Community Bank System, Inc. Dividend Reinvestment Plan.

Read SEC document
March 16, 2021 Filed Mar 17, 2021 22:18 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 GrantStock Option · Derivative 4,151 $0.00 Strike: $79.66 $0.00
Disclosure

SEC source: 0001127602-21-011164 · form4.xml · derivative · entry 3

Serbun Joseph F · CIK 0001741822 · EVP, Chief Banking Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,151

Underlying: Common Stock · 4,151 shares

Expires 2031-03-16

F3 · derivative.exercise_date: The option vests ratably on March 16, 2022, 2023, 2024, 2025, and 2026.

Read SEC document
March 16, 2021 Filed Mar 17, 2021 22:18 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 GrantCommon Stock 960 $0.00 $0.00
Disclosure

SEC source: 0001127602-21-011164 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Banking Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,213.4008

F1 · balance_after: Includes 269.6766 shares acquired pursuant to the Community Bank System, Inc. Dividend Reinvestment Plan.

Read SEC document
March 05, 2021 Filed Mar 8, 2021 22:04 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Tax withholdingCommon Stock 269 $71.19 $19,150.11
Disclosure

SEC source: 0001127602-21-009721 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Banking Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,983.7242

F1 · kind: Payment of tax liability associated with the vesting of restricted stock awards.

Read SEC document
March 17, 2020 Filed Mar 19, 2020 20:05 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 GrantStock Option · Derivative 4,972 $0.00 Strike: $51.64 $0.00
Disclosure

SEC source: 0001127602-20-011496 · form4.xml · derivative · entry 3

Serbun Joseph F · CIK 0001741822 · EVP, Chief Banking Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,972

Underlying: Common Stock · 4,972 shares

Expires 2030-03-17

F3 · derivative.exercise_date: The option vests ratably on March 17, 2021, 2022, 2023, 2024, and 2025.

Read SEC document
March 17, 2020 Filed Mar 19, 2020 20:05 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 GrantCommon Stock 1,046 $0.00 $0.00
Disclosure

SEC source: 0001127602-20-011496 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Banking Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,252.7242

F1 · balance_after: Includes 335 shares acquired pursuant to the Community Bank System, Inc. Dividend Reinvestment Plan.

Read SEC document
March 05, 2020 Filed Mar 9, 2020 19:16 UTC Amendment COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Tax withholdingCommon Stock 243 $60.81 $14,776.83
Disclosure

SEC source: 0001127602-20-009936 · form4a.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,871.7242

F1 · date: This amendment is filed to correct the transaction date which was incorrectly reported as March 3, 2020 due to an administrative error.

Read SEC document
March 03, 2020 Filed Mar 6, 2020 20:39 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Tax withholdingCommon Stock 243 $60.81 $14,776.83
Disclosure

SEC source: 0001127602-20-009768 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,871.7242

F1 · kind: Payment of tax liability associated with the vesting of restricted stock awards.

Read SEC document
November 11, 2019 Filed Nov 13, 2019 00:08 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Exercise / conversionStock Option · Derivative 3,858 $0.00 Strike: $29.79 $0.00
Disclosure

SEC source: 0001127602-19-032569 · form4.xml · derivative · entry 6

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,858 shares

Expires 2023-03-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The option vested ratably on March 19, 2014, 2015, 2016, 2017 and 2018.

Read SEC document
November 11, 2019 Filed Nov 13, 2019 00:08 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Exercise / conversionStock Option · Derivative 3,484 $0.00 Strike: $28.78 $0.00
Disclosure

SEC source: 0001127602-19-032569 · form4.xml · derivative · entry 5

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,484 shares

Expires 2022-03-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The option vested ratably on March 21, 2013, 2014, 2015, 2016 and 2017.

Read SEC document
November 11, 2019 Filed Nov 13, 2019 00:08 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 SaleCommon Stock 7,342 $68.59 $503,581.17
Disclosure

SEC source: 0001127602-19-032569 · form4.xml · nonDerivative · entry 3

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,114.7242

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.50 to $68.93, inclusive. The reporting person undertakes to provide Community Bank System, Inc., any security holder of Community Bank System, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Read SEC document
November 11, 2019 Filed Nov 13, 2019 00:08 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Exercise / conversionCommon Stock 3,858 $29.79 $114,929.82
Disclosure

SEC source: 0001127602-19-032569 · form4.xml · nonDerivative · entry 2

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,456.7242

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 11, 2019 Filed Nov 13, 2019 00:08 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Exercise / conversionCommon Stock 3,484 $28.78 $100,269.52
Disclosure

SEC source: 0001127602-19-032569 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,598.7242

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 20, 2019 Filed Mar 22, 2019 18:29 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 GrantStock Option · Derivative 3,569 $0.00 Strike: $59.41 $0.00
Disclosure

SEC source: 0001127602-19-012829 · form4.xml · derivative · entry 3

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,569

Underlying: Common Stock · 3,569 shares

Expires 2029-03-20

F2 · derivative.exercise_date: The option vests ratably on March 20, 2020, 2021, 2022, 2023, and 2024.

Read SEC document
March 20, 2019 Filed Mar 22, 2019 18:29 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 GrantCommon Stock 861 $0.00 $0.00
Disclosure

SEC source: 0001127602-19-012829 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,114.7242

Read SEC document
March 01, 2019 Filed Mar 4, 2019 21:40 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Tax withholdingCommon Stock 227 $64.79 $14,707.33
Disclosure

SEC source: 0001127602-19-009451 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,253.7242

F1 · kind: Payment of tax liability associated with vesting of restricted stock awards.

Read SEC document
January 08, 2019 Filed Jan 10, 2019 19:45 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Tax withholdingCommon Stock 1,306.2782 $60.34 $78,820.83
Disclosure

SEC source: 0001127602-19-001753 · form4.xml · nonDerivative · entry 2

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,480.7242

F2 · shares: Payment of tax liability associated with vesting of the three-year performance-based restricted stock award.

Read SEC document
January 08, 2019 Filed Jan 10, 2019 19:45 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 GrantCommon Stock 3,560.28 $0.00 $0.00
Disclosure

SEC source: 0001127602-19-001753 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,787.0024

F1 · shares: On January 8, 2019, the Compensation Committee approved the vesting of the three-year performance-based restricted stock award, granted to the reporting person in 2016, based on achievement of predetermined performance criteria at the maximum level.

Read SEC document
June 29, 2018 Filed Jun 29, 2018 20:00 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Exercise / conversionStock Option · Derivative 2,599 $0.00 Strike: $27.36 $0.00
Disclosure

SEC source: 0001127602-18-022024 · form4.xml · derivative · entry 6

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,599 shares

Expires 2021-01-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The option vested ratably on January 19, 2012, 2013, 2014, 2015 and 2016.

Read SEC document
June 29, 2018 Filed Jun 29, 2018 20:00 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Exercise / conversionStock Option · Derivative 82 $0.00 Strike: $19.48 $0.00
Disclosure

SEC source: 0001127602-18-022024 · form4.xml · derivative · entry 5

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 82 shares

Expires 2020-01-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option vested ratably on January 20, 2011, 2012, 2013, 2014 and 2015.

Read SEC document
June 29, 2018 Filed Jun 29, 2018 20:00 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 SaleCommon Stock 2,681 $59.73 $160,127.82
Disclosure

SEC source: 0001127602-18-022024 · form4.xml · nonDerivative · entry 3

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,226.7224

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.60 to $59.90, inclusive. The reporting person undertakes to provide Community Bank System, Inc., any security holder of Community Bank System, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Read SEC document
June 29, 2018 Filed Jun 29, 2018 20:00 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Exercise / conversionCommon Stock 2,599 $27.36 $71,108.64
Disclosure

SEC source: 0001127602-18-022024 · form4.xml · nonDerivative · entry 2

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,907.7224

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
June 29, 2018 Filed Jun 29, 2018 20:00 UTC COMMUNITY FINANCIAL SYSTEM, INC. CBU · Entity 4178 Exercise / conversionCommon Stock 82 $19.48 $1,597.36
Disclosure

SEC source: 0001127602-18-022024 · form4.xml · nonDerivative · entry 1

Serbun Joseph F · CIK 0001741822 · EVP, Chief Credit Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,308.7224

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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.