Michele Sullivan
CIK 2009605 · View on SEC EDGAR ↗
Insider
First SEC filing: Feb. 1, 2024 · Latest: June 18, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 13 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 18, 2026 | CBU | A | 406 | $61.24 | $24,863 | 3,960 Direct | +11.42% | Acquired | 2.2% (price as of 2026-08-20) |
| March 19, 2026 | CBU | A | 447 | $55.61 | $24,858 | 3,530 Direct | +14.50% | Acquired | 12.5% (price as of 2026-08-20) |
| March 17, 2026 | CBU | A | 1,220 | — | — | 3,953 Direct | +44.64% | Acquired | (price as of 2026-08-20) |
| Dec. 18, 2025 | CBU | A | 410 | $60.69 | $24,883 | 3,063 Direct | +15.45% | Acquired | 3.1% (price as of 2026-08-20) |
| Sept. 18, 2025 | CBU | A | 416 | $59.75 | $24,856 | 2,621 Direct | +18.87% | Acquired | 4.7% (price as of 2026-08-20) |
| June 20, 2025 | CBU | A | 477 | $54.25 | $25,877 | 2,204 Direct | +27.62% | Acquired | 15.3% (price as of 2026-08-20) |
| March 20, 2025 | CBU | A | 345 | $57.98 | $20,003 | 1,715 Direct | +25.18% | Acquired | 7.9% (price as of 2026-08-20) |
| March 18, 2025 | CBU | A | 1,225 | — | — | 2,655 Direct | +85.66% | Acquired | (price as of 2026-08-20) |
| Dec. 19, 2024 | CBU | A | 327 | $61.23 | $20,022 | 1,362 Direct | +31.59% | Acquired | 2.2% (price as of 2026-08-20) |
| Sept. 19, 2024 | CBU | A | 344 | $58.16 | $20,007 | 1,027 Direct | +50.37% | Acquired | 7.6% (price as of 2026-08-20) |
| June 20, 2024 | CBU | A | 412 | $44.03 | $18,140 | 684 Direct | +151.47% | Acquired | 42.1% (price as of 2026-08-20) |
| March 21, 2024 | CBU | A | 272 | $45.98 | $12,507 | 272 Direct | — | Acquired | 36.1% (price as of 2026-08-20) |
| March 19, 2024 | CBU | A | 1,395 | — | — | 1,395 Direct | — | Acquired | (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 18, 2026 | CBU | Deferred Stock (Deferred Compensation) | Common Stock (406) | — | — | 406 | Acquired |
| March 19, 2026 | CBU | Deferred Stock (Deferred Compensation) | Common Stock (447) | — | — | 447 | Acquired |
| March 17, 2026 | CBU | Phantom Stock (Deferred Stock Units) | Common Stock (1,220) | — | — | 1,220 | Acquired |
| Dec. 18, 2025 | CBU | Deferred Stock (Deferred Compensation) | Common Stock (410) | — | — | 410 | Acquired |
| Sept. 18, 2025 | CBU | Deferred Stock (Deferred Compensation) | Common Stock (416) | — | — | 416 | Acquired |
| June 20, 2025 | CBU | Deferred Stock (Deferred Compensation) | Common Stock (477) | — | — | 477 | Acquired |
| March 20, 2025 | CBU | Deferred Stock (Deferred Compensation) | Common Stock (345) | — | — | 345 | Acquired |
| March 18, 2025 | CBU | Phantom Stock (Deferred Stock Units) | Common Stock (1,225) | — | — | 1,225 | Acquired |
| Dec. 19, 2024 | CBU | Deferred Stock (Deferred Compensation) | Common Stock (327) | — | — | 327 | Acquired |
| Sept. 19, 2024 | CBU | Deferred Stock (Deferred Compensation) | Common Stock (344) | — | — | 344 | Acquired |
| June 20, 2024 | CBU | Deferred Stock (Deferred Compensation) | Common Stock (412) | — | — | 412 | Acquired |
| March 21, 2024 | CBU | Deferred Stock (Deferred Compensation) | Common Stock (272) | — | — | 272 | Acquired |
| March 19, 2024 | CBU | Phantom Stock (Deferred Stock Units) | Common Stock (1,395) | $0.00 | — | 1,395 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 1, 2024 | CBU | Common Stock | 100 | Direct |