As of the latest Form 4 filed Jun 12, 2026.
What NBT Bancorp Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 41 most recent filings for NBTB.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-12 | 2026-06-12 | Sparks Martin Randolph EVP,General Counsel,Secretary | SSale | −1.20K | $48.04 | $57.7K | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-12 | Hoeller Heidi M Director | SSale | −2.10K | $48.04 | $101K | No | Form 4 ↗ |
| 2026-06-10 | 2026-06-09 | WATT JOHN H JR Director | SSale | −21.0K | $47.42 | $996K | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | Mahoney Ruth H EVP/President of Wealth Mgmt | SSale | −5.00K | $46.60 | $233K | No | Form 4 ↗ |
| 2026-05-21 | 2026-05-19 | Robinson V Daniel II Director | AAward | +1.05K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-21 | 2026-05-19 | NASCA DAVID J Director | AAward | +1.05K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-13 | 2026-05-11 | Halliday Sarah A EVP/Chief Comm Innovation Off | II | −4.02K | $44.82 | $180K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Halliday Sarah A EVP/Chief Comm Innovation Off | AAward | +2.57K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Halliday Sarah A, EVP/Chief Comm Innovation Off | FTax | −706.00 | $41.99 | $29.6K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Halliday Sarah A, EVP/Chief Comm Innovation Off | FTax | −221.00 | $41.99 | $9.28K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Halliday Sarah A, EVP/Chief Comm Innovation Off | AAward | +2.78K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Hyle Shaunastar EVP, Retail Community Banking | AAward | +2.23K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Hyle Shaunastar, EVP, Retail Community Banking | FTax | −612.00 | $41.99 | $25.7K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Hyle Shaunastar, EVP, Retail Community Banking | FTax | −191.00 | $41.99 | $8.02K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Hyle Shaunastar, EVP, Retail Community Banking | AAward | +2.75K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Kingsley Scott Allen President & CEO NBT Bancorp | AAward | +3.53K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Kingsley Scott Allen, President & CEO NBT Bancorp | FTax | −125.00 | $41.99 | $5.25K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Kingsley Scott Allen, President & CEO NBT Bancorp | AAward | +9.13K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Sparks Martin Randolph EVP,General Counsel,Secretary | AAward | +2.75K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Sparks Martin Randolph, EVP,General Counsel,Secretary | FTax | −755.00 | $41.99 | $31.7K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Sparks Martin Randolph, EVP,General Counsel,Secretary | FTax | −236.00 | $41.99 | $9.91K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Sparks Martin Randolph, EVP,General Counsel,Secretary | AAward | +2.92K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Wiles Amy EVP, Chief Risk and Credit | AAward | +2.57K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Wiles Amy, EVP, Chief Risk and Credit | AAward | +5.66K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Wiles Amy, EVP, Chief Risk and Credit | FTax | −114.00 | $41.99 | $4.79K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Stagliano Joseph R SEVP & President of NBT Bank | FTax | −789.00 | $41.99 | $33.1K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Stagliano Joseph R, SEVP & President of NBT Bank | AAward | +2.87K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Stagliano Joseph R, SEVP & President of NBT Bank | FTax | −246.00 | $41.99 | $10.3K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Stagliano Joseph R, SEVP & President of NBT Bank | AAward | +4.53K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Mahoney Ruth H EVP/President of Wealth Mgmt | AAward | +2.51K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Mahoney Ruth H, EVP/President of Wealth Mgmt | FTax | −689.00 | $41.99 | $28.9K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Mahoney Ruth H, EVP/President of Wealth Mgmt | FTax | −215.00 | $41.99 | $9.03K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Mahoney Ruth H, EVP/President of Wealth Mgmt | AAward | +2.96K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Smaniotto Cynthia A SVP, Chief HR Officer | AAward | +212.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Smaniotto Cynthia A, SVP, Chief HR Officer | FTax | −47.00 | $41.99 | $1.97K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Smaniotto Cynthia A, SVP, Chief HR Officer | FTax | −15.00 | $41.99 | $629.85 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Smaniotto Cynthia A, SVP, Chief HR Officer | AAward | +2.04K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Burns Annette L EVP & Chief Financial Officer | AAward | +234.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Burns Annette L, EVP & Chief Financial Officer | FTax | −65.00 | $41.99 | $2.73K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Burns Annette L, EVP & Chief Financial Officer | FTax | −21.00 | $41.99 | $881.79 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Burns Annette L, EVP & Chief Financial Officer | AAward | +3.27K | $0.00 | $0.00 | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also NBTB’s full analysis or the market-wide insider trading feed. The tabs above jump to NBTB’s other SEC data.
Source: SEC Form 4 filings for NBTB, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.