NBT Bancorp Inc.
NBT Bancorp Inc. (NBTB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · NBTB · as of Sep 30, 2025
Ownership Breakdown
259
Institutional Holders
▲ 7 vs Q2
$1.38B
Total Inst. Value
▼ $24.51M vs Q2
52.01M
Shares Outstanding
freeFloat 98.01%
33.05M
13F Shares Held
▼ 764,958 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
NBTB largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. national commercial banks | 7.25M | 15.39% | 15.39% | $302.76B | Nov 12, 2025 | ▼ 180.2K |
VANGUARD GROUP INC national commercial banks | 6.06M | 12.87% | 12.87% | $253.17B | Nov 7, 2025 | ▼ 11.4K |
STATE STREET CORP national commercial banks | 2.41M | 5.12% | 5.12% | $100.70B | Nov 14, 2025 | ▼ 120.1K |
DIMENSIONAL FUND ADVISORS LP national commercial banks | 2.29M | 4.87% | 4.87% | $95.75B | Nov 12, 2025 | ▲ 300 |
GEODE CAPITAL MANAGEMENT, LLC national commercial banks | 1.27M | 2.70% | 2.70% | $53.20B | Nov 12, 2025 | ▼ 25.0K |
SILVERCREST ASSET MANAGEMENT GROUP LLC national commercial banks | 847.0K | 1.80% | 1.80% | $35.37B | Nov 14, 2025 | ▲ 102.3K |
NORTHERN TRUST CORP national commercial banks | 706.9K | 1.50% | 1.50% | $29.52B | Nov 14, 2025 | ▼ 16.1K |
VICTORY CAPITAL MANAGEMENT INC national commercial banks | 650.1K | 1.38% | 1.38% | $27.15B | Nov 12, 2025 | ▲ 7.3K |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC national commercial banks | 623.3K | 1.32% | 1.32% | $26.03B | Nov 10, 2025 | ▲ 4.2K |
DEPRINCE RACE & ZOLLO INC national commercial banks | 610.8K | 1.30% | 1.30% | $25.51B | Oct 17, 2025 | ▼ 137.8K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
20
Increased
+645.1K shares1
New Positions
first time holders28
Decreased
−1.19M shares0
Sold Out
fully exitedNet shares change (top 50)
547.9K
+645.1K / −1.19M
Net new holders
-7
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
NBTB insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
12
Buy transactions
4
Sell transactions
3.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Mahoney Ruth H EVP/President of Wealth Mgmt | Jun 5, 2026 | Sale | 5,000 | $46.60 | $233.0K | 16.4K | Form 4 ↗ |
Kowalczyk Andrew S III director | May 21, 2026 | Award | 1,128.434 | — | — | 7.7K | Form 4 ↗ |
WATT JOHN H JR director | May 19, 2026 | Award | 1,050 | — | — | 75.0K | Form 4 ↗ |
Kowalczyk Andrew S III director | May 19, 2026 | Award | 1,050 | — | — | 13.6K | Form 4 ↗ |
Ames Johanna R director | May 19, 2026 | Award | 1,050 | — | — | 7.6K | Form 4 ↗ |
DELANEY TIMOTHY E director | May 19, 2026 | Award | 1,050 | — | — | 52.9K | Form 4 ↗ |
CANTELE RICHARD J JR director | May 19, 2026 | Award | 1,050 | — | — | 58.1K | Form 4 ↗ |
Salanger Matthew J director | May 19, 2026 | Award | 1,050 | — | — | 28.1K | Form 4 ↗ |
DIETRICH MARTIN A director | May 19, 2026 | Award | 1,050 | — | — | 112.3K | Form 4 ↗ |
Brown Jason David director | May 19, 2026 | Award | 1,050 | — | — | 8.4K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
NBT Bancorp Inc. (NBTB) is primarily owned by institutional investors, who hold approximately 63.5% of total shares outstanding. Company insiders own approximately 1.99%, while retail and public investors account for the remaining 34.47%.
The largest institutional shareholder of NBT Bancorp Inc. is BLACKROCK, INC., holding approximately 7.25 million shares — equal to 15.39% of outstanding shares — as of September 30, 2025.
A total of 259 institutional investors currently hold NBTB stock, with a combined institutional value of approximately $1.38 billion as of the most recent 13F filing period.
Frequently asked questions
NBTB ownershipNBT Bancorp Inc. (NBTB) is primarily owned by institutional investors, who hold approximately 63.5% of shares. The largest shareholder is BLACKROCK, INC. with a 15.39% stake. Company insiders hold 1.99%. Data sourced from SEC Form 13F as of September 30, 2025.