NBT Bancorp Inc. (NBTB) Insider Trading
Over the last 3 months, NBTB insiders made 1 open-market buy and 2 sales, a net purchase of $645K (SEC Form 4). Over the last 6 months, 200 institutions increased and 172 reduced their position (13F).
Insider Activity
Sentiment
71/100
Buys (3m)
1
Sells (3m)
2
Net (3m)
$644.6K
Insiders buying
Insider trades by month Buys Sells
Aug
Nov
Jan
Feb
Mar
Jun
Context3-month price +11.5%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 8, 2026 | Mahoney Ruth Hofficer: EVP/President of Wealth Mgmt | Sell | 5,000 | $46.60 |
| May 22, 2026 | Kowalczyk Andrew S IIIdirector | Grant | 1,128 | — |
| May 21, 2026 | Salanger Matthew Jdirector | Grant | 1,050 | — |
| May 21, 2026 | DELANEY TIMOTHY Edirector | Grant | 1,050 | — |
| May 21, 2026 | CANTELE RICHARD J JRdirector | Grant | 1,050 | — |
| May 21, 2026 | DIETRICH MARTIN Adirector | Grant | 1,050 | — |
| May 21, 2026 | NASCA DAVID Jdirector | Grant | 1,050 | — |
| May 21, 2026 | Ames Johanna Rdirector | Grant | 1,050 | — |
| May 21, 2026 | WATT JOHN H JRdirector | Grant | 1,050 | — |
| May 21, 2026 | Robinson V Daniel IIdirector | Grant | 1,050 | — |
| May 21, 2026 | Kowalczyk Andrew S IIIdirector | Grant | 1,050 | — |
| May 21, 2026 | Hoeller Heidi Mdirector | Grant | 1,050 | — |
| May 21, 2026 | Brown Jason Daviddirector | Grant | 1,050 | — |
| May 18, 2026 | Sparks Martin Randolphofficer: EVP,General Counsel,Secretary | Tax | 361 | $44.09 |
| May 18, 2026 | Wiles Amyofficer: EVP, Chief Risk and Credit | Tax | 2,453 | $44.09 |
| May 18, 2026 | Smaniotto Cynthia Aofficer: EVP, Chief HR Officer | Tax | 285 | $44.09 |
| Mar 25, 2026 | Mahoney Ruth Hofficer: EVP/President of Wealth Mgmt | Grant | 2,507 | — |
| Mar 25, 2026 | Halliday Sarah Aofficer: EVP/Chief Comm Innovation Off | Grant | 2,777 | — |
| Mar 25, 2026 | Stagliano Joseph Rofficer: SEVP & President of NBT Bank | Tax | 789 | $41.99 |
| Mar 25, 2026 | Halliday Sarah Aofficer: EVP/Chief Comm Innovation Off | Tax | 706 | $41.99 |
| Mar 25, 2026 | Kingsley Scott Allenofficer: President & CEO NBT Bancorp | Grant | 9,125 | — |
| Mar 25, 2026 | Hyle Shaunastarofficer: EVP, Retail Community Banking | Grant | 2,751 | — |
| Mar 25, 2026 | Mahoney Ruth Hofficer: EVP/President of Wealth Mgmt | Tax | 215 | $41.99 |
| Mar 25, 2026 | Stagliano Joseph Rofficer: SEVP & President of NBT Bank | Grant | 4,528 | — |
| Mar 25, 2026 | Burns Annette Lofficer: EVP & Chief Financial Officer | Grant | 234 | — |
| Mar 25, 2026 | Smaniotto Cynthia Aofficer: SVP, Chief HR Officer | Grant | 2,042 | — |
| Mar 25, 2026 | Sparks Martin Randolphofficer: EVP,General Counsel,Secretary | Grant | 2,919 | — |
| Mar 25, 2026 | Mahoney Ruth Hofficer: EVP/President of Wealth Mgmt | Grant | 2,961 | — |
| Mar 25, 2026 | Kingsley Scott Allenofficer: President & CEO NBT Bancorp | Grant | 3,526 | — |
| Mar 25, 2026 | Wiles Amyofficer: EVP, Chief Risk and Credit | Tax | 114 | $41.99 |
Source: NBTB SEC Form 4 filings, latest Jun 8, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their NBTB positions over the last 6 months (SEC Form 13F).
Increased
200
New positions
87
Reduced
172
Sold out
42
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 7.4M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 7.4M | May 13, 2026 |
| VANGUARD GROUP INC | Reduced | 6.0M | Jan 29, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 3.5M | May 8, 2026 |
| STATE STREET CORP | Increased | 2.5M | May 15, 2026 |
| STATE STREET CORP | Increased | 2.4M | Feb 13, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 2.3M | May 7, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 2.3M | Feb 12, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2.3M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.3M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 1.3M | Feb 9, 2026 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Reduced | 726K | Feb 17, 2026 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Reduced | 693K | May 15, 2026 |
| NORTHERN TRUST CORP | Increased | 683K | May 14, 2026 |
| VICTORY CAPITAL MANAGEMENT INC | Increased | 670K | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.