Cabot Corporation
US ˙ NYSE ˙ US1270551013

SecurityCBT / Cabot Corporation
InstitutionHancock Whitney Corp
Latest Disclosed Ownership312,954 shares
Latest Disclosed Value $ 23,831,101
Hancock Whitney Corp reports 108.82% increase in ownership of CBT / Cabot Corporation

On May 15, 2026 - Hancock Whitney Corp filed a 13F-HR form disclosing ownership of 312,954 shares of Cabot Corporation (US:CBT) valued at $23,568,566 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 149,866 shares of Cabot Corporation. This represents a change in shares of 108.82% during the quarter. The current value of the position is $26,685,588 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 312,954 163,088 108.82 23,831 139.92 0.4142
2026-02-17 2025-12-31 13F CABOT COM 127055101 149,866 -17,192 -10.29 9,933 -21.81 0.1791
2025-11-17 2025-09-30 13F CABOT COM 127055101 167,058 -1,537 -0.91 12,705 0.47 0.2311
2025-08-14 2025-06-30 13F CABOT COM 127055101 168,595 -1,273 -0.75 12,645 -10.47 0.2416
2025-05-15 2025-03-31 13F CABOT COM 127055101 169,868 27,731 19.51 14,123 8.81 0.4608
2025-02-14 2024-12-31 13F CABOT COM 127055101 142,137 8,058 6.01 12,979 -13.40 0.4107
2024-11-13 2024-09-30 13F CABOT COM 127055101 134,079 -659 -0.49 14,986 21.04 0.4829
2024-08-13 2024-06-30 13F CABOT COMMON STOCK 127055101 134,738 -1,445 -1.06 12,381 -1.39 0.4203
2024-05-16 2024-03-31 13F CABOT COMMON STOCK 127055101 136,183 -2,290 -1.65 12,556 8.60 0.4335
2024-02-14 2023-12-31 13F CABOT COM 127055101 138,473 338 0.24 11,563 20.84 0.4291
2023-11-13 2023-09-30 13F CABOT COM 127055101 138,135 3,297 2.45 9,569 6.09 0.3944
2023-11-13 2023-06-30 13F/A-1 CABOT COM 127055101 134,838 78,553 139.56 9,019 109.06 0.3546
2023-08-10 2023-06-30 13F CABOT COM 127055101 134,838 78,553 9 0.3546
2023-11-13 2023-03-31 13F/A-2 CABOT COM 127055101 56,285 -2,664 -4.52 4,314 9.49 0.1731
2023-05-16 2023-03-31 13F/A-1 CABOT COM 127055101 56,285 -2,664 4 0.0922
2023-05-15 2023-03-31 13F CABOT COM 127055101 58,949 0 4 0.0817
2023-11-13 2022-12-31 13F/A-1 CABOT COM 127055101 58,949 -876 -1.46 3,940 3.09 0.1521
2023-02-03 2022-12-31 13F CABOT COM 127055101 58,949 -876 4 0.1521
2022-10-26 2022-09-30 13F CABOT COM 127055101 59,825 2,866 5.03 3,822 5.20 0.1634
2022-08-08 2022-06-30 13F CABOT COM 127055101 56,959 2,317 4.24 3,633 -2.81 0.1453
2022-05-12 2022-03-31 13F CABOT COM 127055101 54,642 3,415 6.67 3,738 29.88 0.1272
2022-01-25 2021-12-31 13F CABOT COM 127055101 51,227 -2,597 -4.82 2,878 6.67 0.0905
2021-11-04 2021-09-30 13F CABOT COM 127055101 53,824 -860 -1.57 2,698 -13.33 0.0943
2021-08-09 2021-06-30 13F CABOT COM 127055101 54,684 19,073 53.56 3,113 66.74 0.0993
2021-05-14 2021-03-31 13F CABOT COM 127055101 35,611 -3,017 -7.81 1,867 7.67 0.0634
2021-02-09 2020-12-31 13F CABOT COM 127055101 38,628 11,368 41.70 1,734 76.58 0.0579
2020-11-05 2020-09-30 13F CABOT COM 127055101 27,260 12,860 89.31 982 13.79 0.0363
2017-05-09 2017-03-31 13F CABOT COM 127055101 14,400 14,400 863 0.0360
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.