Alamo Group Inc.
US ˙ NYSE ˙ US0113111076

SecurityALG / Alamo Group Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership167,983 shares
Latest Disclosed Value $ 27,712,980
Janus Henderson Group Plc reports 13.83% increase in ownership of ALG / Alamo Group Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 167,983 shares of Alamo Group Inc. (US:ALG) valued at $27,712,156 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 147,573 shares of Alamo Group Inc.. This represents a change in shares of 13.83% during the quarter. The current value of the position is $25,217,608 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)
2026-05-18 2026-03-31 13F/A-1 ALAMO GROUP COM 011311107 167,983 20,410 13.83 27,713 11.87 0.0132
2026-05-15 2026-03-31 13F ALAMO GROUP COM 011311107 167,983 20,410 27,713 0.0051
2026-02-17 2025-12-31 13F ALAMO GROUP COM 011311107 147,573 -5,960 -3.88 24,773 -15.47 0.0111
2025-11-14 2025-09-30 13F ALAMO GROUP COM 011311107 153,533 -3,439 -2.19 29,308 -14.51 0.0134
2025-08-14 2025-06-30 13F ALAMO GROUP COM 011311107 156,972 -11,700 -6.94 34,280 12.39 0.0168
2025-05-15 2025-03-31 13F ALAMO GROUP COM 011311107 168,672 -6,836 -3.89 30,502 -6.51 0.0167
2025-02-14 2024-12-31 13F ALAMO GROUP COM 011311107 175,508 435 0.25 32,627 3.46 0.0166
2024-11-14 2024-09-30 13F ALAMO GROUP COM 011311107 175,073 575 0.33 31,537 4.47 0.0161
2024-08-14 2024-06-30 13F ALAMO GROUP COM 011311107 174,498 2,178 1.26 30,188 -23.28 0.0162
2024-05-15 2024-03-31 13F ALAMO GROUP COM 011311107 172,320 51,292 42.38 39,346 54.67 0.0215
2024-02-14 2023-12-31 13F ALAMO GROUP COM 011311107 121,028 413 0.34 25,440 22.02 0.0152
2023-11-14 2023-09-30 13F ALAMO GROUP COM 011311107 120,615 -13,977 -10.38 20,850 -15.77 0.0137
2023-08-14 2023-06-30 13F ALAMO GROUP COM 011311107 134,592 -2,418 -1.76 24,752 -1.90 0.0154
2023-05-15 2023-03-31 13F ALAMO GROUP COM 011311107 137,010 -12,525 -8.38 25,231 19.17 0.0166
2023-02-14 2022-12-31 13F ALAMO GROUP COM 011311107 149,535 -19,320 -11.44 21,174 2.55 0.0151
2023-01-13 2022-09-30 13F/A-1 ALAMO GROUP COM 011311107 168,855 -1,346 -0.79 20,647 4.19 0.0155
2022-11-14 2022-09-30 13F ALAMO GROUP COM 011311107 168,855 -1,346 20,647 0.0155
2022-08-15 2022-06-30 13F ALAMO GROUP COM 011311107 170,201 -439 -0.26 19,816 -19.24 0.0137
2022-05-16 2022-03-31 13F ALAMO GROUP COM 011311107 170,640 -1,002 -0.58 24,537 -2.87 0.0118
2022-02-14 2021-12-31 13F ALAMO GROUP COM 011311107 171,642 1,038 0.61 25,262 6.12 0.0105
2021-11-16 2021-09-30 13F ALAMO GROUP COM 011311107 170,604 -646 -0.38 23,805 -8.95 0.0104
2021-08-16 2021-06-30 13F ALAMO GROUP COM 011311107 171,250 -8,016 -4.47 26,146 -6.59 0.0112
2021-05-17 2021-03-31 13F ALAMO GROUP COM 011311107 179,266 1,695 0.95 27,992 14.27 0.0128
2021-02-16 2020-12-31 13F ALAMO GROUP COM 011311107 177,571 -248 -0.14 24,496 27.52 0.0114
2020-11-16 2020-09-30 13F ALAMO GROUP COM 011311107 177,819 13,793 8.41 19,210 14.10 0.0100
2020-08-14 2020-06-30 13F ALAMO GROUP COM 011311107 164,026 -647 -0.39 16,836 15.16 0.0095
2020-05-14 2020-03-31 13F ALAMO GROUP COM 011311107 164,673 93,990 132.97 14,620 64.75 0.0101
2020-02-18 2019-12-31 13F ALAMO GROUP COM 011311107 70,683 68,337 2,912.92 8,874 3,115.22 0.0045
2019-11-14 2019-09-30 13F ALAMO GROUP COM 011311107 2,346 79 3.48 276 21.59 0.0001
2019-07-31 2019-06-30 13F ALAMO GROUP COM 011311107 2,267 141 6.63 227 7.08 0.0001
2019-04-30 2019-03-31 13F ALAMO GROUP COM 011311107 2,126 2,126 212 0.0001
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.