NBT Bancorp Inc.
US ˙ NasdaqGS ˙ US6287781024

SecurityNBTB / NBT Bancorp Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership88,757 shares
Latest Disclosed Value $ 3,687,853
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 15.77% increase in ownership of NBTB / NBT Bancorp Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 88,757 shares of NBT Bancorp Inc. (US:NBTB) valued at $3,687,853 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 76,665 shares of NBT Bancorp Inc.. This represents a change in shares of 15.77% during the quarter. The current value of the position is $4,119,212 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2025-08-26 2025-06-30 NP NBT Bancorp EC US6287781024 88,757 12,092 15.77 3,688 12.14 0.0828
2025-05-28 2025-03-31 NP NBT Bancorp EC US6287781024 76,665 -947 -1.22 3,289 -11.28 0.0789
2025-02-25 2024-12-31 NP NBT Bancorp EC US6287781024 77,612 -13,257 -14.59 3,707 -7.79 0.0809
2024-11-26 2024-09-30 NP NBT Bancorp EC US6287781024 90,869 13,969 18.17 4,019 35.41 0.0760
2024-08-26 2024-06-30 NP NBT Bancorp EC US6287781024 76,900 0 0.00 2,968 5.25 0.0605
2024-05-28 2024-03-31 NP NBT Bancorp EC US6287781024 76,900 0 0.00 2,821 -12.48 0.0589
2024-02-26 2023-12-31 NP NBT Bancorp EC US6287781024 76,900 4,069 5.59 3,223 39.60 0.0688
2023-11-28 2023-09-30 NP NBT Bancorp EC US6287781024 72,831 8,667 13.51 2,308 12.97 0.0602
2023-08-25 2023-06-30 NP NBT Bancorp EC US6287781024 64,164 0 0.00 2,044 -5.50 0.0485
2023-05-26 2023-03-31 NP NBT Bancorp EC US6287781024 64,164 0 0.00 2,163 -22.40 0.0576
2023-02-24 2022-12-31 NP NBT Bancorp EC US6287781024 64,164 0 0.00 2,786 14.41 0.0766
2022-11-25 2022-09-30 NP NBT Bancorp EC US6287781024 64,164 0 0.00 2,435 1.00 0.0698
2022-08-25 2022-06-30 NP NBT Bancorp EC US6287781024 64,164 -1,146 -1.75 2,412 2.20 0.0666
2022-05-26 2022-03-31 NP NBT Bancorp EC US6287781024 65,310 0 0.00 2,360 -6.20 0.0550
2022-02-25 2021-12-31 NP NBT Bancorp EC US6287781024 65,310 0 0.00 2,516 6.66 0.0546
2021-11-24 2021-09-30 NP NBT Bancorp EC US6287781024 65,310 0 0.00 2,359 0.38 0.0520
2021-08-26 2021-06-30 NP NBT Bancorp EC US6287781024 65,310 0 0.00 2,349 -9.83 0.0504
2021-05-27 2021-03-31 NP NBT Bancorp EC US6287781024 65,310 0 0.00 2,606 24.28 0.0591
2021-02-25 2020-12-31 NP NBT Bancorp EC US6287781024 65,310 -5,638 -7.95 2,096 10.20 0.0537
2020-11-25 2020-09-30 NP NBT Bancorp EC US6287781024 70,948 7,201 11.30 1,903 -2.96 0.0611
2020-08-27 2020-06-30 NP NBT Bancorp EC US6287781024 63,747 0 0.00 1,961 -5.04 0.0641
2020-06-01 2020-03-31 NP NBT Bancorp EC US6287781024 63,747 0 0.00 2,065 -20.15 0.0844
2020-02-27 2019-12-31 NP NBT Bancorp EC 628778102 63,747 0 0.00 2,586 10.85 0.0778
2019-11-27 2019-09-30 NP NBT Bancorp EC US6287781024 63,747 63,747 2,333 0.0771
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.