Powell Industries, Inc.
US ˙ NasdaqGS ˙ US7391281067

SecurityPOWL / Powell Industries, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership3,337 shares
Latest Disclosed Value $ 1,807,181
Advisor Group Holdings, Inc. reports 6.63% decrease in ownership of POWL / Powell Industries, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 3,337 shares of Powell Industries, Inc. (US:POWL) valued at $1,805,584 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,574 shares of Powell Industries, Inc.. This represents a change in shares of -6.63% during the quarter. The current value of the position is $950,611 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 POWELL INDS COM 739128106 3,337 -237 -6.63 1,807 58.51 0.0015
2026-02-17 2025-12-31 13F POWELL INDS COM 739128106 3,574 -1,972 -35.56 1,140 -25.25 0.0017
2025-11-14 2025-09-30 13F POWELL INDS COM 739128106 5,546 -581 -9.48 1,525 19.89 0.0021
2025-09-04 2025-06-30 13F/A-1 POWELL INDS COM 739128106 6,127 965 18.69 1,272 44.71 0.0023
2025-08-13 2025-06-30 13F POWELL INDS COM 739128106 20,507 15,345 4,522 0.0052
2025-05-12 2025-03-31 13F POWELL INDS COM 739128106 5,162 -15,130 -74.56 880 -80.46 0.0020
2025-06-06 2024-12-31 13F/A-1 POWELL INDS COM 739128106 20,292 6,847 50.93 4,498 50.74 0.0101
2025-02-07 2024-12-31 13F POWELL INDS COM 739128106 3,343 -10,102 742 0.0019
2024-11-13 2024-09-30 13F POWELL INDS COM 739128106 13,445 -1,564 -10.42 2,985 38.66 0.0067
2024-08-13 2024-06-30 13F POWELL INDS COM 739128106 15,009 -1,055 -6.57 2,152 -5.86 0.0051
2024-05-10 2024-03-31 13F POWELL INDS COM 739128106 16,064 7,907 96.94 2,286 217.06 0.0051
2024-02-12 2023-12-31 13F POWELL INDS COM 739128106 8,157 5,030 160.86 721 178.38 0.0013
2023-11-13 2023-09-30 13F POWELL INDS COM 739128106 3,127 543 21.01 259 66.03 0.0004
2023-08-21 2023-06-30 13F/A-1 POWELL INDS COM 739128106 2,584 -96 -3.58 157 36.84 0.0003
2023-08-10 2023-06-30 13F POWELL INDS COM 739128106 2,584 -96 157 0.0000
2023-05-12 2023-03-31 13F POWELL INDS COM 739128106 2,680 -500 -15.72 114 1.79 0.0002
2023-02-10 2022-12-31 13F POWELL INDS COM 739128106 3,180 3,180 112 0.0002
2022-02-03 2021-12-31 13F POWELL INDS COM 739128106 0 -10 -100.00 0 0.0000
2021-11-05 2021-09-30 13F POWELL INDS COM 739128106 10 -34 -77.27 0 -100.00
2021-08-02 2021-06-30 13F POWELL INDS COM 739128106 44 0 0.00 1 0.00 0.0000
2021-05-13 2021-03-31 13F POWELL INDS COM 739128106 44 0 0.00 1 0.00 0.0000
2021-02-10 2020-12-31 13F POWELL INDS COM 739128106 44 0 0.00 1 0.00 0.0000
2020-11-12 2020-09-30 13F POWELL INDS COM 739128106 44 -9 -16.98 1 0.00 0.0000
2020-08-14 2020-06-30 13F POWELL INDS COM 739128106 53 -243 -82.09 1 -85.71 0.0000
2020-05-18 2020-03-31 13F POWELL INDS COM 739128106 296 296 7 0.0000
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.