Cabot Corporation
US ˙ NYSE ˙ US1270551013

SecurityCBT / Cabot Corporation
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership94,019 shares
Latest Disclosed Value $ 7,051,425
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 2.89% increase in ownership of CBT / Cabot Corporation

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 94,019 shares of Cabot Corporation (US:CBT) valued at $7,051,425 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 91,374 shares of Cabot Corporation. This represents a change in shares of 2.89% during the quarter. The current value of the position is $7,604,257 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 Cabot EC US1270551013 94,019 2,645 2.89 7,051 -7.17 0.1584
2025-05-28 2025-03-31 NP Cabot EC US1270551013 91,374 970 1.07 7,597 -7.97 0.1822
2025-02-25 2024-12-31 NP Cabot EC US1270551013 90,404 -15,964 -15.01 8,255 -30.57 0.1803
2024-11-26 2024-09-30 NP Cabot EC US1270551013 106,368 3,287 3.19 11,889 25.51 0.2249
2024-08-26 2024-06-30 NP Cabot EC US1270551013 103,081 7,672 8.04 9,472 7.69 0.1929
2024-05-28 2024-03-31 NP Cabot EC US1270551013 95,409 -5,527 -5.48 8,797 4.37 0.1836
2024-02-26 2023-12-31 NP Cabot EC US1270551013 100,936 6,936 7.38 8,428 29.44 0.1799
2023-11-28 2023-09-30 NP Cabot EC US1270551013 94,000 -1,998 -2.08 6,511 1.40 0.1699
2023-08-25 2023-06-30 NP Cabot EC US1270551013 95,998 7,322 8.26 6,421 -5.52 0.1523
2023-05-26 2023-03-31 NP Cabot EC US1270551013 88,676 1,943 2.24 6,796 17.23 0.1810
2023-02-24 2022-12-31 NP Cabot EC US1270551013 86,733 -1,694 -1.92 5,797 2.62 0.1595
2022-11-25 2022-09-30 NP Cabot EC US1270551013 88,427 2,496 2.90 5,650 3.07 0.1619
2022-08-25 2022-06-30 NP Cabot EC US1270551013 85,931 213 0.25 5,482 -6.52 0.1514
2022-05-26 2022-03-31 NP Cabot EC US1270551013 85,718 -609 -0.71 5,864 20.86 0.1366
2022-02-25 2021-12-31 NP Cabot EC US1270551013 86,327 1,983 2.35 4,852 14.76 0.1052
2021-11-24 2021-09-30 NP Cabot EC US1270551013 84,344 1,188 1.43 4,227 -10.71 0.0931
2021-08-26 2021-06-30 NP Cabot EC US1270551013 83,156 83,156 4,734 0.1016
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.