Community Financial System CBU Insider Ownership

NYSE CBU
$62.36 -0.79 (-1.25%)
As of: Sep 9, 2026 · 3:59 PM EDT

Insider Holdings by Owner

534.83K Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
—
share count not reported for this filer set
Shares Held by Insiders
592.88K
filed for Sep 2026
▲+0.17% QoQ
Shares Outstanding
—
not reported
Direct Holdings
530.71K
Indirect: 62.17K
Net Shares Traded (QoQ)
+1.01K
net buying in Sep 2026
Insiders Holding Shares
25
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

As of September 09, 2026, Community Financial System's top three insider holders are Mark J. Bolus (Director, 94.06K shares), John Parente (Director, 72.65K shares), John Parente (Director, 72.65K shares).

Form 4 Holdings

Insiders Holding CBU

Insiders 25
Shares held 534.83K
Of outstanding —
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Mark J. Bolus Director 94,060 0 94,060 17.6% 29 Jun, 2026
2 John Parente Director 72,654 0 72,654 13.6% 01 May, 2026
3 Brian R Ace Director 72,584 0 72,584 13.6% 29 Feb, 2024
4 Sally A Steele Director 41,227 0 41,227 7.7% 01 May, 2026
5 George J Getman Executive Vp General Counsel 39,813 0 39,813 7.4% 16 Mar, 2022
6 Eric Stickels Director 31,592 0 31,592 5.9% 10 Jun, 2026
7 Mark E Tryniski President Ceo 29,395 0 29,395 5.5% 05 Jan, 2024
8 Dimitar Karaivanov President Ceo 23,657 0 23,657 4.4% 06 Mar, 2026
9 Jeffrey L Davis Director 23,429 0 23,429 4.4% 20 Jun, 2023
10 Joseph E Sutaris Evp Chief Financial Officer 19,998 0 19,998 3.7% 19 Mar, 2025
11 Joseph F Serbun President, Retail Banking 13,246 0 13,246 2.5% 14 Oct, 2022
12 Raymond C Iii Pecor Director 11,448 0 11,448 2.1% 01 May, 2026
13 Neil E. Fesette Director 10,690 0 10,690 2.0% 13 Mar, 2024
14 John F. Whipple Director 8,506 0 8,506 1.6% 06 Feb, 2026
15 Michael N Abdo Evp And General Counsel 8,010 0 8,010 1.5% 06 Mar, 2026
16 Jeffrey M Levy Svp Chief Banking Officer 6,657 0 6,657 1.2% 28 Aug, 2025
17 Maureen A Gillan-Myer Evp, Chief Admin Hr Officer 6,647 0 6,647 1.2% 06 Mar, 2026
18 Deresa Fischer Durkee Svp, Chief Accounting Officer 5,478 0 5,478 1.0% 11 Jun, 2026
19 Jeffery J Knauss Director 4,829 0 4,829 0.9% 01 May, 2026
20 Kerrie D. Macpherson Director 2,982 0 2,982 0.6% 07 Nov, 2024
21 Matthew K Durkee Svp, Chief Banking Officer 2,858 0 2,858 0.5% 03 Mar, 2026
22 Joseph Jonathon Lemchak Svp, Chief Investment Officer 2,068 0 2,068 0.4% 16 Mar, 2022
23 Marya Burgio Wlos Evp Chief Financial Officer 1,993 0 1,993 0.4% 05 May, 2026
24 Brenda M Hall Director 515 0 515 0.1% 26 Aug, 2026
25 John A Vaccaro Director 492 0 492 0.1% 28 Aug, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

8,235 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
27 Aug, 2026 John A Vaccaro Director Acquired P 317 $63.11 $20.01K 492 Direct
24 Aug, 2026 Brenda M Hall Director Acquired P 476 $63.59 $30.27K 515 Direct
25 Jun, 2026 Mark J. Bolus Director Disposed S 12,191 $67.00 $816.79K 94,060 Direct
18 Jun, 2026 John A Vaccaro Director Acquired A 320 $61.24 $19.63K 635 Direct
18 Jun, 2026 Michele Sullivan Director Acquired A 406 $61.24 $24.88K 3,960 Direct
10 Jun, 2026 Deresa Fischer Durkee Svp, Chief Accounting Officer Acquired M 427 $51.64 $22.05K 5,608 Direct
10 Jun, 2026 Deresa Fischer Durkee Svp, Chief Accounting Officer Acquired M 1,196 $44.27 $52.95K 6,804 Direct
10 Jun, 2026 Deresa Fischer Durkee Svp, Chief Accounting Officer Disposed F 1,326 $64.77 $85.89K 5,478 Direct
10 Jun, 2026 Deresa Fischer Durkee Svp, Chief Accounting Officer Disposed M 427 $0.00 $0 0 Direct
10 Jun, 2026 Deresa Fischer Durkee Svp, Chief Accounting Officer Disposed M 1,196 $0.00 $0 1,794 Direct
08 Jun, 2026 Eric Stickels Director Disposed S 2,000 $63.98 $127.96K 31,592 Direct
08 Jun, 2026 Eric Stickels Director Disposed S 2,000 $63.98 $127.96K 31,592 Direct
04 May, 2026 Marya Burgio Wlos Evp Chief Financial Officer Disposed F 273 $63.62 $17.37K 1,993 Direct
04 May, 2026 Marya Burgio Wlos Evp Chief Financial Officer Disposed F 273 $63.62 $17.37K 1,993 Direct
29 Apr, 2026 Sally A Steele Director Acquired M 9 — — 41,227 Direct
29 Apr, 2026 Jeffery J Knauss Director Acquired M 9 — — 4,829 Direct
29 Apr, 2026 John Parente Director Acquired M 9 — — 72,654 Direct
29 Apr, 2026 John Parente Director Acquired M 9 — — 72,654 Direct
29 Apr, 2026 Raymond C Iii Pecor Director Acquired M 9 — — 11,448 Direct
29 Apr, 2026 Sally A Steele Director Acquired M 9 — — 41,227 Direct