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NBT Bancorp Inc

NBTB
Exchange
Nasdaq
Industry
National Commercial Banks
SEC CIK
0000790359

In the last 90 days, NBT Bancorp Inc insiders filed 0 open-market purchases and 2 sales; 286 institutions reported holding it in 13F filings for Q2 2026, worth $1.74B in total; no superinvestor holds it.

Holders of 5% or more of NBTB

Holders whose latest Schedule 13D or 13G filing reports 5% or more of NBT Bancorp Inc, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of NBTB
HolderLatest formStakeChangeFirst filedLatest filingFiling
Vanguard Portfolio Management LLC13G6.70%3.50M sharesNewApr 29, 20261 filingApr 29, 2026SEC
State Street Corp13G5.30%2.73M sharesNewAug 7, 20261 filingAug 7, 2026SEC
Vanguard Capital Management LLC13G5.06%2.64M sharesNewApr 30, 20261 filingApr 30, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

13 Schedule 13D and 13G filings on NBT Bancorp Inc, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on NBTB
Filed (ET)FilerFormStakeChangeEvent dateFiling
Aug 7, 202610:15 AM ETState Street Corp13G5.30%2.73M sharesNewJun 30, 2026SEC
Apr 30, 202611:37 AM ETVanguard Capital Management LLC13G5.06%2.64M sharesNewMar 31, 2026SEC
Apr 29, 20262:47 PM ETVanguard Portfolio Management LLC13G6.70%3.50M sharesNewMar 31, 2026SEC
Mar 27, 202610:51 AM ETVanguard Group Inc13G/A0.00%0 shares–Below 5%Mar 13, 2026SEC
Feb 13, 2024Vanguard Group Inc13G/AOld format–––SEC
Jan 23, 202411:52 AM ETBlackRock Inc.13G/AOld format–––SEC
Feb 9, 2023Vanguard Group Inc13G/AOld format–––SEC
Jan 23, 20233:52 PM ETBlackRock Inc.13G/AOld format–––SEC
Feb 10, 2022Vanguard Group Inc13G/AOld format–––SEC
Jan 27, 202211:00 AM ETBlackRock Inc.13G/AOld format–––SEC
Jan 25, 20223:03 PM ETBlackRock Inc.13G/AOld format–––SEC
Feb 10, 2021Vanguard Group Inc13G/AOld format–––SEC
Jan 26, 20212:22 PM ETBlackRock Inc.13G/AOld format–––SEC

Form 144: proposed insider sales

1 notice from officers, directors and other affiliates planning to sell NBT Bancorp Inc shares, newest first.

Form 144 notices for NBTB
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Jun 14, 20235:18 PM ETWiles AmyOfficer2.00K$71.0KJun 14, 2023ETRADE FINANCIAL CORPORATIONSEC