Kronos Worldwide, Inc.
US ˙ NYSE ˙ US50105F1057

SecurityKRO / Kronos Worldwide, Inc.
InstitutionVanguard Group Inc
Latest Disclosed Ownership1,743,157 shares
Latest Disclosed Value $ 7,704,754
Vanguard Group Inc reports 20.69% decrease in ownership of KRO / Kronos Worldwide, Inc.

On January 29, 2026 - Vanguard Group Inc filed a 13F-HR form disclosing ownership of 1,743,157 shares of Kronos Worldwide, Inc. (US:KRO) valued at $7,704,754 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 7, 2025 disclosing 2,197,973 shares of Kronos Worldwide, Inc.. This represents a change in shares of -20.69% during the quarter. The current value of the position is $11,958,057 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)
2026-01-29 2025-12-31 13F KRONOS WORLDWIDE COM 50105F105 1,743,157 -454,816 -20.69 7,705 -38.93 0.0001
2025-11-07 2025-09-30 13F KRONOS WORLDWIDE COM 50105F105 2,197,973 -85,459 -3.74 12,616 -10.89 0.0002
2025-08-11 2025-06-30 13F KRONOS WORLDWIDE COM 50105F105 2,283,432 27,388 1.21 14,157 -16.11 0.0002
2025-05-09 2025-03-31 13F KRONOS WORLDWIDE COM 50105F105 2,256,044 38,083 1.72 16,875 -21.97 0.0003
2025-02-11 2024-12-31 13F KRONOS WORLDWIDE COM 50105F105 2,217,961 13,869 0.63 21,625 -21.19 0.0004
2024-11-13 2024-09-30 13F KRONOS WORLDWIDE COM 50105F105 2,204,092 9,388 0.43 27,441 -0.37 0.0005
2024-08-13 2024-06-30 13F KRONOS WORLDWIDE COM 50105F105 2,194,704 -16,940 -0.77 27,544 5.54 0.0005
2024-05-10 2024-03-31 13F KRONOS WORLDWIDE COM 50105F105 2,211,644 5,884 0.27 26,097 19.03 0.0005
2024-03-11 2023-12-31 13F/A-1 KRONOS WORLDWIDE COM 50105F105 2,205,760 -14,736 -0.66 21,925 27.41 0.0005
2024-02-14 2023-12-31 13F KRONOS WORLDWIDE COM 50105F105 2,205,760 -14,736 21,925 0.0004
2023-12-18 2023-09-30 13F/A-1 KRONOS WORLDWIDE COM 50105F105 2,220,496 -913 -0.04 17,209 -11.26 0.0004
2023-11-14 2023-09-30 13F KRONOS WORLDWIDE COM 50105F105 2,220,496 -913 17,209 0.0004
2023-08-14 2023-06-30 13F KRONOS WORLDWIDE COM 50105F105 2,221,409 -107,437 -4.61 19,393 -9.59 0.0005
2023-07-14 2023-03-31 13F/A-1 KRONOS WORLDWIDE COM 50105F105 2,328,846 -23,292 -0.99 21,449 -2.99 0.0005
2023-05-15 2023-03-31 13F KRONOS WORLDWIDE COM 50105F105 2,328,846 -23,292 21,449 0.0001
2023-02-10 2022-12-31 13F KRONOS WORLDWIDE COM 50105F105 2,352,138 -60,737 -2.52 22,110 -1.89 0.0006
2022-11-14 2022-09-30 13F KRONOS WORLDWIDE COM 50105F105 2,412,875 78,415 3.36 22,536 -47.53 0.0007
2022-08-12 2022-06-30 13F KRONOS WORLDWIDE COM 50105F105 2,334,460 68,819 3.04 42,953 22.16 0.0012
2022-05-13 2022-03-31 13F KRONOS WORLDWIDE COM 50105F105 2,265,641 63,844 2.90 35,161 6.39 0.0008
2022-02-14 2021-12-31 13F KRONOS WORLDWIDE COM 50105F105 2,201,797 -23,271 -1.05 33,050 19.69 0.0008
2021-11-12 2021-09-30 13F KRONOS WORLDWIDE COM 50105F105 2,225,068 25,690 1.17 27,613 -12.33 0.0007
2021-08-13 2021-06-30 13F KRONOS WORLDWIDE COM 50105F105 2,199,378 62,855 2.94 31,496 -3.65 0.0008
2021-05-14 2021-03-31 13F KRONOS WORLDWIDE COM 50105F105 2,136,523 36,082 1.72 32,688 4.37 0.0009
2021-02-12 2020-12-31 13F KRONOS WORLDWIDE COM 50105F105 2,100,441 40,119 1.95 31,318 18.20 0.0009
2020-11-16 2020-09-30 13F KRONOS WORLDWIDE COM 50105F105 2,060,322 -83,821 -3.91 26,496 18.70 0.0009
2020-08-14 2020-06-30 13F KRONOS WORLDWIDE COM 50105F105 2,144,143 -89,288 -4.00 22,321 18.41 0.0008
2020-05-15 2020-03-31 13F KRONOS WORLDWIDE COM 50105F105 2,233,431 -74,136 -3.21 18,850 -39.04 0.0008
2020-02-14 2019-12-31 13F KRONOS WORLDWIDE COM 50105F105 2,307,567 64,280 2.87 30,921 11.43 0.0011
2019-11-14 2019-09-30 13F KRONOS WORLDWIDE COM 50105F105 2,243,287 165,147 7.95 27,750 -12.84 0.0010
2019-08-14 2019-06-30 13F KRONOS WORLDWIDE COM 50105F105 2,078,140 -48,578 -2.28 31,837 6.78 0.0012
2019-05-15 2019-03-31 13F KRONOS WORLDWIDE COM 50105F105 2,126,718 560,804 35.81 29,816 65.29 0.0012
2019-02-14 2018-12-31 13F KRONOS WORLDWIDE COM 50105F105 1,565,914 -748,355 -32.34 18,039 -52.03 0.0008
2018-12-13 2018-09-30 13F/A-2 KRONOS WORLDWIDE COM 50105F105 2,314,269 -565,541 -19.64 37,607 -42.04 0.0015
2018-11-23 2018-09-30 13F/A-1 KRONOS WORLDWIDE COM 50105F105 2,314,269 0 37,607 0.0015
2018-11-14 2018-09-30 13F KRONOS WORLDWIDE COM 50105F105 2,314,269 -565,541 37,607
2018-08-14 2018-06-30 13F KRONOS WORLDWIDE COM 50105F105 2,879,810 -421,985 -12.78 64,882 -13.05 0.0027
2018-05-15 2018-03-31 13F KRONOS WORLDWIDE COM 50105F105 3,301,795 145,693 4.62 74,620 -8.25 0.0033
2018-02-14 2017-12-31 13F KRONOS WORLDWIDE COM 50105F105 3,156,102 445,354 16.43 81,333 31.42 0.0036
2017-11-14 2017-09-30 13F KRONOS WORLDWIDE COM 50105F105 2,710,748 483,041 21.68 61,887 52.47 0.0029
2017-08-24 2017-06-30 13F/A-1 KRONOS WORLDWIDE COM 50105F105 2,227,707 603,137 37.13 40,589 52.07 0.0020
2017-08-11 2017-06-30 13F KRONOS WORLDWIDE COM 50105F105 2,227,707 603,137 40,589
2017-05-12 2017-03-31 13F KRONOS WORLDWIDE COM 50105F105 1,624,570 50,903 3.23 26,691 42.05 0.0014
2017-02-14 2016-12-31 13F KRONOS WORLDWIDE COM 50105F105 1,573,667 10,654 0.68 18,790 45.02 0.0010
2016-11-14 2016-09-30 13F KRONOS WORLDWIDE COM 50105F105 1,563,013 28,518 1.86 12,957 60.84 0.0008
2016-08-10 2016-06-30 13F KRONOS WORLDWIDE COM 50105F105 1,534,495 73,087 5.00 8,056 -3.64 0.0005
2016-05-13 2016-03-31 13F KRONOS WORLDWIDE COM 50105F105 1,461,408 -155,128 -9.60 8,360 -8.31 0.0005
2016-02-08 2015-12-31 13F KRONOS WORLDWIDE COM 50105F105 1,616,536 43,532 2.77 9,118 -6.66 0.0006
2015-11-12 2015-09-30 13F/A-1 KRONOS WORLDWIDE COM 50105F105 1,573,004 15,845 1.02 9,769 -42.76 0.0004
2015-11-12 2015-09-30 13F KRONOS WORLDWIDE COM 50105F105 1,573,004 9,769
2015-08-13 2015-06-30 13F KRONOS WORLDWIDE COM 50105F105 1,557,159 -1,713 -0.11 17,066 -13.45 0.0012
2015-05-15 2015-03-31 13F/A-1 KRONOS WORLDWIDE COM 50105F105 1,558,872 116,902 8.11 19,719 5.03 0.0013
2015-05-14 2015-03-31 13F KRONOS WORLDWIDE COM 50105F105 1,558,872 19,719
2015-02-12 2014-12-31 13F KRONOS WORLDWIDE COM 50105F105 1,441,970 6,134 0.43 18,774 -5.11 0.0014
2014-11-12 2014-09-30 13F KRONOS WORLDWIDE COM 50105F105 1,435,836 26,153 1.86 19,786 -10.43 0.0015
2014-08-11 2014-06-30 13F KRONOS WORLDWIDE COM 50105F105 1,409,683 62,041 4.60 22,089 -1.73 0.0017
2014-05-13 2014-03-31 13F KRONOS WORLDWIDE COM 50105F105 1,347,642 87,949 6.98 22,478 -6.33 0.0019
2014-02-12 2013-12-31 13F KRONOS WORLDWIDE COM 50105F105 1,259,693 48,082 3.97 23,998 27.87 0.0021
2013-11-07 2013-09-30 13F KRONOS WORLDWIDE COM 50105F105 1,211,611 40,988 3.50 18,768 -1.28 0.0018
2013-08-13 2013-06-30 13F KRONOS WORLDWIDE COM 50105F105 1,170,623 1,170,623 19,012 0.0020
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.