NBT BANCORP INC (NBTB) Insider Trading & SEC Filings
Last SEC filing
NBT BANCORP INC (NBTB) has filed 22 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-30. Insider sales over the same period: 6 transactions worth $2.12M. 3 Form 8-K material event filings were reported by NBTB in the last 90 days. 7 Form 144 notices of proposed sale were filed for NBTB stock. InsiderAlpha tracks every NBTB SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About NBT BANCORP INC (NBTB)
NBT BANCORP INC trades under the ticker NBTB. InsiderAlpha tracks 67 primary SEC Form 4 filings from 21 reporting insiders for NBTB since 2024, sourced directly from SEC EDGAR.
| Sector | Financials insider trading |
|---|---|
| SIC classification | National Commercial Banks (SIC 6021) |
| SEC CIK | 0000790359 |
90-Day SEC Filing Activity
| Insider sales (90d) | 6 ($2.12M) |
|---|---|
| Form 4 filings (90d) | 22 |
| Form 8-K filings (90d) | 3 |
| Form 144 notices (90d) | 7 |
| Latest Form 4 filing | 2026-07-30 |
Recent NBTB Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sarah A. Halliday | EVP/Chief Comm Innovation Off | S - Open-market sale | 9.0K | $54.04 | $486K | SEC | |
| Ruth H. Mahoney | EVP/President of Wealth Mgmt | S - Open-market sale | 4.5K | $54.30 | $244K | SEC | |
| Martin Randolph Sparks | EVP,General Counsel,Secretary | S - Open-market sale | 1.2K | $48.04 | $58K | SEC | |
| Heidi M. Hoeller | Director | S - Open-market sale | 2.1K | $48.03 | $101K | SEC | |
| John H. Watt Jr. | Director | S - Open-market sale | 21.0K | $47.42 | $996K | SEC | |
| Ruth H. Mahoney | EVP/President of Wealth Mgmt | S - Open-market sale | 5.0K | $46.60 | $233K | SEC | |
| Jason David Brown | Director | A - Grant or award | 1.1K | $0.00 | - | SEC | |
| Heidi M. Hoeller | Director | A - Grant or award | 1.1K | $0.00 | - | SEC | |
| Andrew S. Kowalczyk III | Director | A - Grant or award | 1.1K | $0.00 | - | SEC | |
| V. Daniel Robinson II | Director | A - Grant or award | 1.1K | $0.00 | - | SEC | |
| Richard J. Cantele Jr. | Director | A - Grant or award | 1.1K | $0.00 | - | SEC | |
| Matthew J. Salanger | Director | A - Grant or award | 1.1K | $0.00 | - | SEC | |
| David J. Nasca | Director | A - Grant or award | 1.1K | $0.00 | - | SEC | |
| Martin A. Dietrich | Director | A - Grant or award | 1.1K | $0.00 | - | SEC | |
| Timothy E. Delaney | Director | A - Grant or award | 1.1K | $0.00 | - | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for NBT BANCORP INC (NBTB). Updated in real time as new filings are submitted to the SEC.
Most-Active NBTB Insiders - Last 90 Days
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Sarah A. Halliday | 2 | $666K |
| Ruth H. Mahoney | 2 | $477K |
| John H. Watt Jr. | 2 | $996K |
| Martin Randolph Sparks | 2 | $74K |
| Heidi M. Hoeller | 2 | $101K |
Recent NBTB Form 8-K Material Events
- - Item 2.02, 9.01 [SEC]
- - Item 5.07, 7.01, 9.01 [SEC]
- - Item 7.01 [SEC]
- - Item 7.01 [SEC]
- - Item 2.02, 9.01 · Earnings · neutral [SEC]
NBT Bancorp Inc. reported its first quarter 2026 financial results on April 23, 2026. The company issued a press release describing results of operations for the quarter ended March 31, 2026, with a conference call scheduled for April 24, 2026.
Recent NBTB Form 144 Notices of Proposed Sale
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
Recent Insider Filings
- - Ruth H. Mahoney (EVP/President of Wealth Mgmt)
- - Sarah A. Halliday (EVP/Chief Comm Innovation Off)
- - Martin Randolph Sparks (EVP,General Counsel,Secretary)
- - Heidi M. Hoeller (Director)
- - John H. Watt Jr. (Director)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in NBTB insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
NBTB Insider Trading - FAQ
- What is the latest insider trade for NBTB?
- NBT BANCORP INC (NBTB) had 22 insider filings in the last 90 days, with the most recent on 2026-07-30. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying NBTB stock?
- 0 insider purchases of NBTB were filed in the last 90 days.
- How many insiders are selling NBTB stock?
- 6 insider sales of NBTB were filed in the last 90 days, totaling $2.12M.
- Where can I see NBTB SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks NBTB Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live NBTB dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.