Avista Corporation
US ˙ NYSE ˙ US05379B1070

SecurityAVA / Avista Corporation
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership33,018 shares
Latest Disclosed Value $ 1,325,418
Advisor Group Holdings, Inc. reports 1.00% increase in ownership of AVA / Avista Corporation

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 33,018 shares of Avista Corporation (US:AVA) valued at $1,325,343 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 32,690 shares of Avista Corporation. This represents a change in shares of 1.00% during the quarter. The current value of the position is $1,400,624 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 AVISTA COM 05379B107 33,018 328 1.00 1,325 5.24 0.0011
2026-02-17 2025-12-31 13F AVISTA COM 05379B107 32,690 -11,251 -25.60 1,260 -23.97 0.0018
2025-11-14 2025-09-30 13F AVISTA COM 05379B107 43,941 -264 -0.60 1,657 -1.49 0.0023
2025-09-04 2025-06-30 13F/A-1 VISTA COM 05379B107 44,205 2,048 4.86 1,681 -4.76 0.0030
2025-08-13 2025-06-30 13F VISTA COM 05379B107 42,563 406 1,608 0.0019
2025-05-12 2025-03-31 13F AVISTA COM 05379B107 42,157 -11,290 -21.12 1,765 -9.35 0.0039
2025-06-06 2024-12-31 13F/A-1 AVISTA COM 05379B107 53,447 17,467 48.55 1,947 39.67 0.0044
2025-02-07 2024-12-31 13F AVISTA COM 05379B107 53,406 17,426 1,962 0.0050
2024-11-13 2024-09-30 13F AVISTA COM 05379B107 35,980 21,483 148.19 1,394 178.24 0.0031
2024-08-13 2024-06-30 13F AVISTA COM 05379B107 14,497 1,402 10.71 502 9.39 0.0012
2024-05-10 2024-03-31 13F AVISTA COM 05379B107 13,095 -11,929 -47.67 459 -48.77 0.0010
2024-02-12 2023-12-31 13F AVISTA COM 05379B107 25,024 -95 -0.38 894 9.96 0.0016
2023-11-13 2023-09-30 13F AVISTA COM 05379B107 25,119 2,936 13.24 813 -6.66 0.0012
2023-08-21 2023-06-30 13F/A-1 AVISTA COM 05379B107 22,183 626 2.90 871 -4.81 0.0016
2023-08-10 2023-06-30 13F AVISTA COM 05379B107 22,183 626 871 0.0002
2023-05-12 2023-03-31 13F AVISTA COM 05379B107 21,557 249 1.17 915 -3.28 0.0017
2023-02-10 2022-12-31 13F AVISTA COM 05379B107 21,308 817 3.99 946 24.64 0.0019
2022-11-14 2022-09-30 13F AVISTA COM 05379B107 20,491 -50 -0.24 759 -15.20 0.0017
2022-08-10 2022-06-30 13F AVISTA COM 05379B107 20,541 -850 -3.97 895 -5.29 0.0020
2022-05-04 2022-03-31 13F AVISTA COM 05379B107 21,391 -88 -0.41 945 3.62 0.0018
2022-02-03 2021-12-31 13F AVISTA COM 05379B107 21,479 2,460 12.93 912 22.58 0.0017
2021-11-05 2021-09-30 13F AVISTA COM 05379B107 19,019 1,016 5.64 744 -3.25 0.0016
2021-08-02 2021-06-30 13F AVISTA COM 05379B107 18,003 633 3.64 769 -7.24 0.0017
2021-05-13 2021-03-31 13F AVISTA COM 05379B107 17,370 2,340 15.57 829 37.71 0.0020
2021-02-10 2020-12-31 13F AVISTA COM 05379B107 15,030 -11,445 -43.23 602 -33.48 0.0016
2020-11-12 2020-09-30 13F AVISTA COM 05379B107 26,475 -3,204 -10.80 905 -16.28 0.0027
2020-08-14 2020-06-30 13F AVISTA COM 05379B107 29,679 9,156 44.61 1,081 57.12 0.0036
2020-05-18 2020-03-31 13F AVISTA COM 05379B107 20,523 20,523 688 0.0028
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.