Cabot Corporation
US ˙ NYSE ˙ US1270551013

SecurityCBT / Cabot Corporation
InstitutionLazard Asset Management Llc
Latest Disclosed Ownership43,219 shares
Latest Disclosed Value $ 3,254,823
Lazard Asset Management Llc reports 96.23% increase in ownership of CBT / Cabot Corporation

On May 15, 2026 - Lazard Asset Management Llc filed a 13F-HR form disclosing ownership of 43,219 shares of Cabot Corporation (US:CBT) valued at $3,254,823 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 22,025 shares of Cabot Corporation. This represents a change in shares of 96.23% during the quarter. The current value of the position is $3,495,553 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)
2026-05-15 2026-03-31 13F CABOT COM 127055101 43,219 21,194 96.23 3,255 123.03 0.0054
2026-02-17 2025-12-31 13F CABOT COM 127055101 22,025 -24,369 -52.53 1,460 -58.65 0.0025
2025-11-14 2025-09-30 13F CABOT COM 127055101 46,394 2,654 6.07 3,528 117,500.00 0.0048
2025-08-14 2025-06-30 13F CABOT Common Stock 127055101 43,740 936 2.19 3 0.00 0.0045
2025-05-15 2025-03-31 13F CABOT Common Stock 127055101 42,804 12,052 39.19 4 50.00 0.0055
2025-02-14 2024-12-31 13F CABOT Common Stock 127055101 30,752 7,408 31.73 3 0.00 0.0041
2024-11-14 2024-09-30 13F CABOT Common Stock 127055101 23,344 9,670 70.72 3 100.00 0.0035
2024-08-14 2024-06-30 13F CABOT Common Stock 127055101 13,674 11,667 581.32 1 0.0016
2024-07-09 2024-03-31 13F/A-1 CABOT Common Stock 127055101 2,007 1,649 460.61 0 0.0002
2024-05-14 2024-03-31 13F CABOT Common Stock 127055101 2,007 1,649 0 0.0002
2024-02-14 2023-12-31 13F CABOT Common Stock 127055101 358 81 29.24 0 0.0000
2023-11-14 2023-09-30 13F CABOT Common Stock 127055101 277 277 0 0.0000
2022-05-13 2022-03-31 13F CABOT Common Stock 127055101 0 -295 -100.00 0 -100.00
2022-02-09 2021-12-31 13F CABOT Common Stock 127055101 295 0 0.00 16 14.29 0.0000
2021-11-15 2021-09-30 13F CABOT Common Stock 127055101 295 0 0.00 14 -12.50 0.0000
2021-08-12 2021-06-30 13F CABOT Common Stock 127055101 295 0 0.00 16 6.67 0.0000
2021-05-14 2021-03-31 13F CABOT Common Stock 127055101 295 -26,922 -98.92 15 -98.77 0.0000
2021-02-11 2020-12-31 13F CABOT Common Stock 127055101 27,217 -659 -2.36 1,221 21.61 0.0015
2020-11-13 2020-09-30 13F CABOT Common Stock 127055101 27,876 -21,140 -43.13 1,004 -44.71 0.0014
2020-08-13 2020-06-30 13F CABOT Common Stock 127055101 49,016 0 0.00 1,816 41.88 0.0028
2020-05-14 2020-03-31 13F CABOT Common Stock 127055101 49,016 49,016 1,280 0.0023
2020-02-13 2019-12-31 13F CABOT Common Stock 127055101 0 -376 -100.00 0 -100.00
2019-11-14 2019-09-30 13F CABOT Common Stock 127055101 376 -37,690 -99.01 17 -99.06 0.0000
2019-08-14 2019-06-30 13F CABOT Common Stock 127055101 38,066 -1,808 -4.53 1,816 9.46 0.0029
2019-08-28 2019-03-31 13F/A-1 CABOT Common Stock 127055101 39,874 39,874 1,659 0.0027
2019-05-13 2019-03-31 13F CABOT Common Stock 127055101 39,874 39,874 1,659
2019-08-13 2017-03-31 13F/A-1 CABOT Common Stock 127055101 0 -22,862 -100.00 0 -100.00
2019-07-30 2016-12-31 13F/A-1 CABOT Common Stock 127055101 22,862 22,720 16,000.00 1,155 16,400.00 0.0024
2017-02-13 2016-12-31 13F CABOT Common Stock 127055101 22,862 22,720 1,155
2019-08-07 2016-09-30 13F/A-1 CABOT Common Stock 127055101 142 -17,464 -99.19 7 -99.13 0.0000
2016-11-14 2016-09-30 13F CABOT Common Stock 127055101 142 -17,464 7
2019-07-29 2016-06-30 13F/A-1 CABOT Common Stock 127055101 17,606 17,606 803 0.0017
2016-08-15 2016-06-30 13F CABOT Common Stock 127055101 17,606 803 0.0018
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.