Deresa Fischer Durkee
CIK 1608689 · View on SEC EDGAR ↗
Insider
First SEC filing: June 11, 2026 · Latest: June 11, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 20 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 10, 2026 | CBU | M | 1,196 | — | — | 1,794 Direct | -40.00% | Disposed | (price as of 2026-08-21) |
| June 10, 2026 | CBU | M | 427 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| June 10, 2026 | CBU | F | 1,326 | $64.77 | $85,885 | 5,478 Direct | -19.49% | Disposed | -2.0% (price as of 2026-08-21) |
| June 10, 2026 | CBU | M | 1,196 | $44.27 | $52,947 | 6,804 Direct | +21.33% | Acquired | 43.4% (price as of 2026-08-21) |
| June 10, 2026 | CBU | M | 427 | $51.64 | $22,050 | 5,608 Direct | +8.24% | Acquired | 23.0% (price as of 2026-08-21) |
| March 17, 2026 | CBU | A | 1,812 | — | — | 1,812 Direct | — | Acquired | (price as of 2026-08-21) |
| March 2, 2026 | CBU | F | 357 | $60.55 | $21,616 | 5,181 Direct | -6.45% | Disposed | 4.9% (price as of 2026-08-21) |
| March 18, 2025 | CBU | A | 3,262 | — | — | 3,262 Direct | — | Acquired | (price as of 2026-08-21) |
| March 18, 2025 | CBU | A | 883 | — | — | 5,538 Direct | +18.97% | Acquired | (price as of 2026-08-21) |
| March 3, 2025 | CBU | F | 326 | $63.29 | $20,633 | 4,655 Direct | -6.54% | Disposed | 0.3% (price as of 2026-08-21) |
| Nov. 7, 2024 | CBU | M | 1,705 | — | — | 427 Direct | -79.97% | Disposed | (price as of 2026-08-21) |
| Nov. 7, 2024 | CBU | M | 427 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| Nov. 7, 2024 | CBU | F | 1,711 | $70.79 | $121,122 | 4,981 Direct | -25.57% | Disposed | -10.3% (price as of 2026-08-21) |
| Nov. 7, 2024 | CBU | M | 1,705 | $51.64 | $88,046 | 6,692 Direct | +34.19% | Acquired | 23.0% (price as of 2026-08-21) |
| Nov. 7, 2024 | CBU | M | 427 | $38.02 | $16,235 | 4,987 Direct | +9.36% | Acquired | 67.0% (price as of 2026-08-21) |
| Nov. 6, 2024 | CBU | M | 1,705 | — | — | 427 Direct | -79.97% | Disposed | (price as of 2026-08-21) |
| Nov. 6, 2024 | CBU | M | 427 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| Nov. 6, 2024 | CBU | F | 1,841 | $62.20 | $114,510 | 4,851 Direct | -27.51% | Disposed | 2.1% (price as of 2026-08-21) |
| Nov. 6, 2024 | CBU | M | 1,705 | $51.64 | $88,046 | 6,692 Direct | +34.19% | Acquired | 23.0% (price as of 2026-08-21) |
| Nov. 6, 2024 | CBU | M | 427 | $38.02 | $16,235 | 4,987 Direct | +9.36% | Acquired | 67.0% (price as of 2026-08-21) |
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 10, 2026 | CBU | Stock Option | Common Stock (1,196) | $44.27 | March 19, 2034 | 1,196 | Disposed |
| June 10, 2026 | CBU | Stock Option | Common Stock (427) | $51.64 | March 17, 2030 | 427 | Disposed |
| March 17, 2026 | CBU | Restricted Stock Units | Common Stock (1,812) | — | — | 1,812 | Acquired |
| March 18, 2025 | CBU | Stock Option | Common Stock (3,262) | $58.10 | March 18, 2035 | 3,262 | Acquired |
| Nov. 7, 2024 | CBU | Stock Option | Common Stock (1,705) | $51.64 | March 17, 2030 | 1,705 | Disposed |
| Nov. 7, 2024 | CBU | Stock Option | Common Stock (427) | $38.02 | March 16, 2026 | 427 | Disposed |
| Nov. 6, 2024 | CBU | Stock Option | Common Stock (1,705) | $51.64 | March 17, 2030 | 1,705 | Disposed |
| Nov. 6, 2024 | CBU | Stock Option | Common Stock (427) | $38.02 | March 16, 2026 | 427 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 12 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 9, 2024 | CBU | Common Stock | 4,560 | Direct |
| Oct. 9, 2024 | CBU | Common Stock | 92 | Indirect |
| Oct. 9, 2024 | CBU | Common Stock | 218 | Indirect |
| Oct. 9, 2024 | CBU | Stock Option→ Common Stock (1,282) | 1,282 | Direct |
| Oct. 9, 2024 | CBU | Stock Option→ Common Stock (427) | 427 | Direct |
| Oct. 9, 2024 | CBU | Stock Option→ Common Stock (2,990) | 2,990 | Direct |
| Oct. 9, 2024 | CBU | Stock Option→ Common Stock (2,132) | 2,132 | Direct |
| Oct. 9, 2024 | CBU | Stock Option→ Common Stock (2,511) | 2,511 | Direct |
| Oct. 9, 2024 | CBU | Stock Option→ Common Stock (1,030) | 1,030 | Direct |
| Oct. 9, 2024 | CBU | Stock Option→ Common Stock (311) | 311 | Direct |
| Oct. 9, 2024 | CBU | Stock Option→ Common Stock (1,601) | 1,601 | Direct |
| Oct. 9, 2024 | CBU | Stock Option→ Common Stock (1,502) | 1,502 | Direct |