Alamo Group Inc.
MX ˙ BMV ˙ US0113111076
SecurityMX:ALG / Alamo Group Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership31,773 shares
Latest Disclosed Value $ 5,241,571
Rhumbline Advisers reports 4.42% increase in ownership of ALG / Alamo Group Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 31,773 shares of Alamo Group Inc. (MX:ALG) valued at $5,241,571 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 30,429 shares of Alamo Group Inc.. This represents a change in shares of 4.42% during the quarter.

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)
2026-05-12 2026-03-31 13F ALAMO GROUP INC COM COM 011311107 31,773 1,344 4.42 5,242 2.60 0.0045
2026-02-13 2025-12-31 13F ALAMO GROUP INC COM COM 011311107 30,429 -993 -3.16 5,108 -14.84 0.0041
2025-11-06 2025-09-30 13F ALAMO GROUP INC COM COM 011311107 31,422 -2,620 -7.70 5,998 -19.32 0.0048
2025-08-12 2025-06-30 13F ALAMO GROUP INC COM COM 011311107 34,042 1,013 3.07 7,434 26.30 0.0064
2025-05-29 2025-03-31 13F/A-1 ALAMO GROUP INC COM COM 011311107 33,029 -137 -0.41 5,886 -4.53 0.0055
2025-04-08 2025-03-31 13F ALAMO GROUP INC COM COM 011311107 33,029 -137 5,886 0.0055
2025-05-29 2024-12-31 13F/A-1 ALAMO GROUP INC COM COM 011311107 33,166 801 2.47 6,166 5.76 0.0055
2025-01-30 2024-12-31 13F ALAMO GROUP INC COM COM 011311107 33,166 801 6,166 0.0055
2024-11-12 2024-09-30 13F ALAMO GROUP INC COM COM 011311107 32,365 -325 -0.99 5,830 3.08 0.0053
2024-08-01 2024-06-30 13F ALAMO GROUP INC COM COM 011311107 32,690 -59 -0.18 5,655 -24.37 0.0053
2024-05-09 2024-03-31 13F ALAMO GROUP INC COM COM 011311107 32,749 -570 -1.71 7,478 6.77 0.0072
2024-02-08 2023-12-31 13F ALAMO GROUP INC COM COM 011311107 33,319 -781 -2.29 7,003 18.82 0.0073
2023-11-09 2023-09-30 13F ALAMO GROUP INC COM COM 011311107 34,100 53 0.16 5,895 -5.86 0.0068
2023-08-08 2023-06-30 13F ALAMO GROUP INC COM COM 011311107 34,047 -760 -2.18 6,262 104,250.00 0.0070
2023-05-11 2023-03-31 13F ALAMO GROUP INC COM COM 011311107 34,807 -1,177 -3.27 6 -99.88 0.0079
2023-02-14 2022-12-31 13F ALAMO GROUP INC COM COM 011311107 35,984 -16 -0.04 5,095 15.74 0.0068
2022-11-10 2022-09-30 13F ALAMO GROUP INC COM COM 011311107 36,000 8,944 33.06 4,402 39.75 0.0066
2022-08-11 2022-06-30 13F ALAMO GROUP INC COM COM 011311107 27,056 871 3.33 3,150 -16.33 0.0046
2022-05-12 2022-03-31 13F ALAMO GROUP INC COM COM 011311107 26,185 999 3.97 3,765 1.56 0.0048
2022-02-10 2021-12-31 13F ALAMO GROUP INC COM COM 011311107 25,186 729 2.98 3,707 8.65 0.0045
2021-11-12 2021-09-30 13F ALAMO GROUP INC COM COM 011311107 24,457 -3,685 -13.09 3,412 -20.60 0.0046
2021-08-05 2021-06-30 13F ALAMO GROUP INC COM COM 011311107 28,142 -1,474 -4.98 4,297 -7.09 0.0056
2021-05-06 2021-03-31 13F ALAMO GROUP INC COM COM 011311107 29,616 251 0.85 4,625 14.17 0.0063
2021-02-10 2020-12-31 13F ALAMO GROUP INC COM COM 011311107 29,365 1,260 4.48 4,051 33.43 0.0056
2020-11-12 2020-09-30 13F ALAMO GROUP INC COM COM 011311107 28,105 -1,635 -5.50 3,036 -0.56 0.0048
2020-08-13 2020-06-30 13F ALAMO GROUP INC COM COM 011311107 29,740 -2,429 -7.55 3,053 6.90 0.0051
2020-05-06 2020-03-31 13F ALAMO GROUP INC COM COM 011311107 32,169 717 2.28 2,856 -27.68 0.0060
2020-02-05 2019-12-31 13F ALAMO GROUP INC COM COM 011311107 31,452 1,419 4.72 3,949 11.71 0.0066
2019-10-23 2019-09-30 13F ALAMO GROUP INC COM COM 011311107 30,033 -3,907 -11.51 3,535 4.22 0.0065
2019-08-14 2019-06-30 13F ALAMO GROUP INC COM COM 011311107 33,940 2,056 6.45 3,392 6.47 0.0064
2019-05-01 2019-03-31 13F ALAMO GROUP INC COM COM 011311107 31,884 4,286 15.53 3,186 49.30 0.0062
2019-01-31 2018-12-31 13F ALAMO GROUP INC COM COM 011311107 27,598 4,788 20.99 2,134 2.11 0.0046
2018-11-07 2018-09-30 13F ALAMO GROUP INC COM COM 011311107 22,810 -534 -2.29 2,090 -0.90 0.0040
2018-08-06 2018-06-30 13F ALAMO GROUP INC COM COM 011311107 23,344 718 3.17 2,109 -15.20 0.0043
2018-05-02 2018-03-31 13F ALAMO GROUP INC COM COM 011311107 22,626 337 1.51 2,487 -1.15 0.0052
2018-02-09 2017-12-31 13F ALAMO GROUP INC COM COM 011311107 22,289 3,386 17.91 2,516 23.94 0.0051
2017-11-06 2017-09-30 13F ALAMO GROUP INC COM COM 011311107 18,903 425 2.30 2,030 20.98 0.0044
2017-08-02 2017-06-30 13F ALAMO GROUP INC COM COM 011311107 18,478 -822 -4.26 1,678 14.15 0.0038
2017-05-02 2017-03-31 13F ALAMO GROUP INC COM COM 011311107 19,300 5,325 38.10 1,470 38.29 0.0034
2017-01-27 2016-12-31 13F ALAMO GROUP INC COM COM 011311107 13,975 -1,850 -11.69 1,063 1.92 0.0027
2016-11-08 2016-09-30 13F ALAMO GROUP INC COM COM 011311107 15,825 445 2.89 1,043 2.76 0.0029
2016-08-11 2016-06-30 13F ALAMO GROUP INC COM COM 011311107 15,380 -1,260 -7.57 1,015 9.49 0.0030
2016-05-02 2016-03-31 13F ALAMO GROUP INC U COM 011311107 16,640 1,500 9.91 927 17.49 0.0029
2016-02-03 2015-12-31 13F ALAMO GROUP INC U COM 011311107 15,140 970 6.85 789 19.18 0.0025
2015-11-04 2015-09-30 13F ALAMO GROUP INC U COM 011311107 14,170 690 5.12 662 -10.18 0.0023
2015-08-04 2015-06-30 13F ALAMO GROUP INC U COM 011311107 13,480 2,120 18.66 737 2.79 0.0023
2015-05-12 2015-03-31 13F ALAMO GROUP INC U COM 011311107 11,360 -675 -5.61 717 22.98 0.0021
2015-02-06 2014-12-31 13F ALAMO GROUP INC U COM 011311107 12,035 875 7.84 583 27.29 0.0017
2014-11-12 2014-09-30 13F ALAMO GROUP INC U COM 011311107 11,160 0 0.00 458 -24.17 0.0014
2014-08-06 2014-06-30 13F ALAMO GROUP INC U COM 011311107 11,160 -210 -1.85 604 -2.27 0.0018
2014-05-06 2014-03-31 13F ALAMO GROUP INC U COM 011311107 11,370 -350 -2.99 618 -13.08 0.0018
2014-02-03 2013-12-31 13F ALAMO GROUP INC U COM 011311107 11,720 -600 -4.87 711 17.91 0.0021
2013-11-05 2013-09-30 13F ALAMO GROUP INC U COM 011311107 12,320 -62 -0.50 603 19.41 0.0019
2013-08-07 2013-06-30 13F ALAMO GROUP INC U COM 011311107 12,382 12,382 505 0.0016
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.