Cabot Corporation
US ˙ NYSE ˙ US1270551013

SecurityCBT / Cabot Corporation
InstitutionShell Asset Management Co
Latest Disclosed Ownership694 shares
Latest Disclosed Value $ 53
Shell Asset Management Co reports 61.01% decrease in ownership of CBT / Cabot Corporation

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 694 shares of Cabot Corporation (US:CBT) valued at $52,779 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 1,780 shares of Cabot Corporation. The current value of the position is $57,630 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)
2025-11-07 2025-09-30 13F CABOT COM 127055101 694 -1,086 -61.01 0 0.0053
2025-07-23 2025-06-30 13F CABOT COM 127055101 1,780 -421 -19.13 0 0.0046
2025-05-14 2025-03-31 13F CABOT COM 127055101 2,201 -96 -4.18 0 0.0087
2025-02-14 2024-12-31 13F CABOT COM 127055101 2,297 -7 -0.30 0 0.0092
2024-11-07 2024-09-30 13F CABOT COM 127055101 2,304 -128 -5.26 0 0.0114
2024-07-25 2024-03-31 13F CABOT COM 127055101 2,432 -245 -9.15 0 0.0102
2024-02-14 2023-12-31 13F CABOT COM 127055101 2,677 -808 -23.19 0 0.0103
2023-11-08 2023-09-30 13F CABOT COM 127055101 3,485 -54 -1.53 0 0.0100
2023-07-28 2023-06-30 13F CABOT COM 127055101 3,539 -3,768 -51.57 0 0.0093
2023-05-15 2023-03-31 13F CABOT COM 127055101 7,307 -2,414 -24.83 1 0.0232
2023-02-07 2022-12-31 13F CABOT COM 127055101 9,721 -2,081 -17.63 1 -100.00 0.0285
2022-11-14 2022-09-30 13F CABOT COM 127055101 11,802 -3,091 -20.75 754 -20.63 0.0294
2022-08-09 2022-06-30 13F CABOT COM 127055101 14,893 25 0.17 950 -6.59 0.0281
2022-05-04 2022-03-31 13F CABOT COM 127055101 14,868 -5,636 -27.49 1,017 -11.72 0.0240
2022-02-09 2021-12-31 13F CABOT COM 127055101 20,504 98 0.48 1,152 12.61 0.0236
2021-11-04 2021-09-30 13F CABOT COM 127055101 20,406 -2,599 -11.30 1,023 -21.91 0.0230
2021-08-12 2021-06-30 13F CABOT COM 127055101 23,005 1,240 5.70 1,310 14.81 0.0254
2021-05-10 2021-03-31 13F CABOT COM 127055101 21,765 -130 -0.59 1,141 16.07 0.0228
2021-02-16 2020-12-31 13F CABOT COM 127055101 21,895 0 0.00 983 24.59 0.0203
2020-11-13 2020-09-30 13F CABOT COM 127055101 21,895 0 0.00 789 -2.71 0.0183
2020-08-10 2020-06-30 13F CABOT COM 127055101 21,895 -213 -0.96 811 40.55 0.0202
2020-05-11 2020-03-31 13F CABOT COM 127055101 22,108 -337 -1.50 577 -45.92 0.0161
2020-02-13 2019-12-31 13F CABOT COM 127055101 22,445 -558 -2.43 1,067 2.40 0.0230
2019-11-12 2019-09-30 13F CABOT COM 127055101 23,003 -201 -0.87 1,042 -5.87 0.0238
2019-08-12 2019-06-30 13F CABOT COM 127055101 23,204 -530 -2.23 1,107 12.04 0.0245
2019-05-09 2019-03-31 13F CABOT COM 127055101 23,734 0 0.00 988 -3.04 0.0218
2019-02-13 2018-12-31 13F CABOT COM 127055101 23,734 -2,000 -7.77 1,019 -36.86 0.0254
2018-11-13 2018-09-30 13F CABOT COM 127055101 25,734 0 0.00 1,614 1.51 0.0319
2018-08-10 2018-06-30 13F CABOT COM 127055101 25,734 -1,378 -5.08 1,590 5.23 0.0326
2018-05-14 2018-03-31 13F CABOT COM 127055101 27,112 0 0.00 1,511 -9.52 0.0301
2018-02-09 2017-12-31 13F CABOT COM 127055101 27,112 0 0.00 1,670 10.38 0.0331
2017-10-20 2017-09-30 13F/A-1 CABOT COM 127055101 27,112 -600 -2.17 1,513 2.16 0.0336
2017-10-18 2017-09-30 13F CABOT COM 127055101 37,230 9,518 1,890
2017-07-26 2017-06-30 13F CABOT COM 127055101 27,712 0 0.00 1,481 -10.78 0.0368
2017-04-26 2017-03-31 13F CABOT COM 127055101 27,712 -1,940 -6.54 1,660 10.74 0.0424
2017-01-10 2016-12-31 13F CABOT COM 127055101 29,652 -261 -0.87 1,499 -4.40 0.0405
2016-10-28 2016-09-30 13F CABOT COM 127055101 29,913 -1,369 -4.38 1,568 9.80 0.0375
2016-07-25 2016-06-30 13F CABOT COM 127055101 31,282 -1,778 -5.38 1,428 -10.64 0.0331
2016-05-11 2016-03-31 13F CABOT COM 127055101 33,060 -1,978 -5.65 1,598 11.59 0.0383
2016-02-05 2015-12-31 13F CABOT COM 127055101 35,038 -2,192 -5.89 1,432 -24.23 0.0338
2015-10-13 2015-09-30 13F CABOT COM 127055101 37,230 1,737 4.89 1,890 42.75 0.0300
2015-07-30 2015-06-30 13F CABOT COM 127055101 35,493 -1,628 -4.39 1,324 -20.72 0.0265
2015-05-07 2015-03-31 13F CABOT COM 127055101 37,121 37,121 0.00 1,670 0.0291
2015-02-04 2014-12-31 13F CABOT COM 127055101 0 -37,230 -100.00 0 -100.00
2014-10-24 2014-09-30 13F CABOT COM 127055101 37,230 3,475 10.29 1,890 -3.42 0.0293
2014-08-08 2014-06-30 13F CABOT COM 127055101 33,755 -392 -1.15 1,957 -2.97 0.0302
2014-05-07 2014-03-31 13F CABOT COM 127055101 34,147 34,147 2,017 0.0335
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.