TopBuild Corp.
DE ˙ DB ˙ US89055F1030
345,80 € ↓ -2,00 (-0,58%)
2026-06-05
DEL PRIS
SecurityDE:28T / TopBuild Corp.
InstitutionCalamos Advisors LLC
Latest Disclosed Ownership8,585 shares
Latest Disclosed Value $ 3,015,911
Calamos Advisors LLC reports 68.90% increase in ownership of 28T / TopBuild Corp.

On May 4, 2026 - Calamos Advisors LLC filed a 13F-HR form disclosing ownership of 8,585 shares of TopBuild Corp. (DE:28T) valued at $2,506,820 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 5,083 shares of TopBuild Corp.. This represents a change in shares of 68.90% during the quarter. The current value of the position is $2,968,693 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)
2026-05-04 2026-03-31 13F TOPBUILD COR COM 89055F103 8,585 3,502 68.90 3,016 42.22 0.0106
2026-01-29 2025-12-31 13F TOPBUILD COM 89055F103 5,083 2,533 99.33 2,121 112.85 0.0080
2025-10-20 2025-09-30 13F TOPBUILD COM 89055F103 2,550 2,550 997 0.0037
2025-01-24 2024-12-31 13F TOPBUILD COM 89055F103 0 -2,241 -100.00 0 -100.00
2024-11-07 2024-09-30 13F TOPBUILD COM 89055F103 2,241 997 80.14 912 90.19 0.0039
2024-07-25 2024-06-30 13F TOPBUILD COM 89055F103 1,244 -3,850 -75.58 479 -78.66 0.0021
2024-05-08 2024-03-31 13F TOPBUILD COM 89055F103 5,094 954 23.04 2,245 44.93 0.0106
2024-01-31 2023-12-31 13F TOPBUILD COM 89055F103 4,140 -17 -0.41 1,549 48.23 0.0075
2023-10-26 2023-09-30 13F TOPBUILD COM 89055F103 4,157 -6,626 -61.45 1,046 -63.56 0.0054
2023-07-28 2023-06-30 13F TOPBUILD COM 89055F103 10,783 10,783 2,868 0.0142
2022-10-24 2022-09-30 13F TOPBUILD COM 89055F103 0 -6,664 -100.00 0 -100.00
2022-08-01 2022-06-30 13F TOPBUILD COM 89055F103 6,664 -561 -7.76 1,115 -14.89 0.0048
2022-05-03 2022-03-31 13F TOPBUILD COM 89055F103 7,225 -50,654 -87.52 1,310 -91.80 0.0049
2022-02-01 2021-12-31 13F TOPBUILD COM 89055F103 57,879 -1,075 -1.82 15,969 32.25 0.0597
2021-10-26 2021-09-30 13F TOPBUILD COM 89055F103 58,954 27,869 89.65 12,075 96.41 0.0527
2021-07-22 2021-06-30 13F TOPBUILD COM 89055F103 31,085 -17,127 -35.52 6,148 -39.11 0.0281
2021-04-12 2021-03-31 13F TOPBUILD COM 89055F103 48,212 -1,197 -2.42 10,097 11.02 0.0551
2021-01-27 2020-12-31 13F TOPBUILD COM 89055F103 49,409 -14,264 -22.40 9,095 -16.32 0.0528
2020-10-26 2020-09-30 13F TOPBUILD COM 89055F103 63,673 -1,514 -2.32 10,869 46.56 0.0700
2020-07-27 2020-06-30 13F TOPBUILD COM 89055F103 65,187 10,719 19.68 7,416 90.06 0.0524
2020-04-28 2020-03-31 13F TOPBUILD COM 89055F103 54,468 -29,201 -34.90 3,902 -54.76 0.0306
2020-01-15 2019-12-31 13F TOPBUILD COMMON STOCK 89055F103 83,669 4,562 5.77 8,625 13.07 0.0426
2019-10-21 2019-09-30 13F TOPBUILD COMMON STOCK 89055F103 79,107 -48,870 -38.19 7,628 -27.98 0.0415
2019-08-07 2019-06-30 13F TOPBUILD COMMON STOCK 89055F103 127,977 77,978 155.96 10,591 226.78 0.0588
2019-04-12 2019-03-31 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 3,241 44.04 0.0202
2019-01-24 2018-12-31 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 2,250 -20.80 0.0149
2018-10-22 2018-09-30 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 2,841 -27.47 0.0156
2018-07-17 2018-06-30 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 3,917 2.38 0.0239
2018-04-13 2018-03-31 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 3,826 1.03 0.0249
2018-02-13 2017-12-31 13F TOPBUILD COMMON STOCK 89055F103 49,999 -100 -0.20 3,787 15.99 0.0193
2017-10-25 2017-09-30 13F TOPBUILD COMMON STOCK 89055F103 50,099 100 0.20 3,265 23.07 0.0252
2017-08-09 2017-06-30 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 2,653 12.89 0.0196
2017-04-20 2017-03-31 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 2,350 32.02 0.0185
2017-02-06 2016-12-31 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 1,780 7.23 0.0141
2016-11-14 2016-09-30 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 1,660 -8.29 0.0119
2016-07-26 2016-06-30 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 1,810 21.72 0.0127
2016-04-25 2016-03-31 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 1,487 -3.32 0.0099
2016-02-05 2015-12-31 13F TOPBUILD COMMON STOCK 89055F103 49,999 0 0.00 1,538 -0.65 0.0098
2015-11-10 2015-09-30 13F TOPBUILD COMMON STOCK 89055F103 49,999 49,999 1,548 0.0107
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.