Community Financial System, Inc. (CBU) Insider Ownership

Historic Insider Ownership Trends

Through the 90-day period concluding January 21, 2026, Community Financial System's top three insider stakeholders include Director Mark J. Bolus (103.83K shares), Director Brian R Ace (72.58K shares), Director John Parente (71.39K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Mark J. Bolus 103,828 16 Apr, 2025
Brian R Ace 72,584 29 Feb, 2024
John Parente 71,391 17 Dec, 2025
Mark E Tryniski 57,354 05 Jan, 2024
Eric Stickels 49,348 16 Apr, 2025
Sally A Steele 44,549 16 Apr, 2025
George J Getman Executive Vp & General Counsel 39,813 16 Mar, 2022
Dimitar Karaivanov President & Ceo 37,288 19 Mar, 2025
Joseph E Sutaris Evp & Chief Financial Officer 30,312 19 Mar, 2025
Jeffrey L Davis 23,429 20 Jun, 2023
Joseph F Serbun President And Retail Banking 13,246 14 Oct, 2022
Neil E. Fesette 10,690 13 Mar, 2024
Jeffrey M Levy Svp & Chief Banking Officer 9,438 28 Aug, 2025
Maureen A Gillan-Myer Evp And Chief Admin & Hr Officer 8,870 19 Mar, 2025
John F. Whipple 8,506 03 Dec, 2025
Michael N Abdo Evp And General Counsel 7,926 19 Mar, 2025
Deresa Fischer Durkee Svp And Chief Accounting Officer 5,538 19 Mar, 2025
Jeffery J Knauss 3,566 16 Apr, 2025
Kerrie D. Macpherson 2,982 07 Nov, 2024
Marya Burgio Wlos Evp & Chief Financial Officer 2,266 05 May, 2025
Joseph Jonathon Lemchak Svp And Chief Investment Officer 2,068 16 Mar, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
16 Dec, 2025 John Parente Common Stock D 2,683 $60.18 71,391 D F
16 Dec, 2025 John Parente Common Stock A 4,246 $38.02 74,074 D M
01 Dec, 2025 John F. Whipple Common Stock A 1,370 - 8,506 D M
27 Aug, 2025 Jeffrey M Levy Common Stock D 1,440 $61.38 6,657 D S
27 Aug, 2025 Jeffrey M Levy - - 6,657 D
02 May, 2025 Marya Burgio Wlos Common Stock A 2,266 $0.00 2,266 D A
02 May, 2025 Marya Burgio Wlos - - 2,266 D
15 Apr, 2025 Sally A Steele Common Stock A 1,181 $0.00 39,964 D M
15 Apr, 2025 Sally A Steele - - 39,964 D
14 Apr, 2025 Eric Stickels Common Stock A 3 $0.00 35,342 D M
14 Apr, 2025 Mark J. Bolus Common Stock A 12 $0.00 103,828 D M
14 Apr, 2025 John Parente - - 69,828 D
14 Apr, 2025 John Parente Common Stock A 12 $0.00 69,828 D M
14 Apr, 2025 Jeffery J Knauss Common Stock A 12 $0.00 3,566 D M
19 Mar, 2025 Mark J. Bolus Common Stock A 1,430 $0.00 103,816 D M
19 Mar, 2025 John Parente Common Stock A 1,430 $0.00 69,816 D M
19 Mar, 2025 Jeffery J Knauss Common Stock A 1,430 $0.00 3,554 D M
18 Mar, 2025 Joseph E Sutaris Common Stock A 1,529 $0.00 15,880 D A
18 Mar, 2025 Joseph E Sutaris Common Stock A 5,647 $0.00 19,998 D A
18 Mar, 2025 Jeffrey M Levy Common Stock A 1,413 $0.00 8,097 D A