Avista Corporation
US ˙ NYSE ˙ US05379B1070

SecurityAVA / Avista Corporation
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,516,163 shares
Latest Disclosed Value $ 60,860,226
Dimensional Fund Advisors Lp reports 0.33% increase in ownership of AVA / Avista Corporation

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,516,163 shares of Avista Corporation (US:AVA) valued at $60,858,783 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,511,205 shares of Avista Corporation. This represents a change in shares of 0.33% during the quarter. The current value of the position is $64,315,634 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)
2026-05-07 2026-03-31 13F AVISTA COM 05379B107 1,516,163 4,958 0.33 60,860 4.50 0.0027
2026-02-12 2025-12-31 13F AVISTA COM 05379B107 1,511,205 4,506 0.30 58,243 2.24 0.0122
2025-11-12 2025-09-30 13F AVISTA COM 05379B107 1,506,699 6,567 0.44 56,967 0.07 0.0122
2025-08-12 2025-06-30 13F AVISTA COM 05379B107 1,500,132 -28,651 -1.87 56,929 -11.06 0.0132
2025-05-13 2025-03-31 13F AVISTA COM 05379B107 1,528,783 -12,686 -0.82 64,007 13.36 0.0159
2025-02-13 2024-12-31 13F AVISTA COM 05379B107 1,541,469 -35,237 -2.23 56,464 -7.58 0.0136
2024-11-07 2024-09-30 13F AVISTA COM 05379B107 1,576,706 42,365 2.76 61,097 15.06 0.0148
2024-08-09 2024-06-30 13F AVISTA COM 05379B107 1,534,341 61,466 4.17 53,103 2.95 0.0139
2024-05-10 2024-03-31 13F AVISTA COM 05379B107 1,472,875 17,432 1.20 51,580 -0.84 0.0140
2024-02-07 2023-12-31 13F AVISTA COM 05379B107 1,455,443 -17,031 -1.16 52,018 9.13 0.0152
2023-11-09 2023-09-30 13F AVISTA COM 05379B107 1,472,474 60,050 4.25 47,663 -14.07 0.0156
2023-08-09 2023-06-30 13F AVISTA COM 05379B107 1,412,424 25,914 1.87 55,466 -5.76 0.0177
2023-05-12 2023-03-31 13F AVISTA COM 05379B107 1,386,510 17,935 1.31 58,857 97,993.33 0.0198
2023-02-09 2022-12-31 13F AVISTA COM 05379B107 1,368,575 46,295 3.50 61 -99.88 0.0179
2022-11-10 2022-09-30 13F AVISTA COM 05379B107 1,322,280 15,085 1.15 48,994 -13.86 0.0188
2022-08-12 2022-06-30 13F AVISTA COM 05379B107 1,307,195 12,581 0.97 56,875 -2.70 0.0204
2022-05-13 2022-03-31 13F AVISTA COM 05379B107 1,294,614 23,773 1.87 58,453 8.25 0.0180
2022-02-09 2021-12-31 13F AVISTA COM 05379B107 1,270,841 9,746 0.77 53,998 9.45 0.0163
2021-11-12 2021-09-30 13F AVISTA COM 05379B107 1,261,095 35,520 2.90 49,336 -5.66 0.0159
2021-08-12 2021-06-30 13F AVISTA COM 05379B107 1,225,575 -73,495 -5.66 52,296 -15.69 0.0166
2021-05-14 2021-03-31 13F AVISTA COM 05379B107 1,299,070 -336 -0.03 62,029 18.93 0.0205
2021-03-08 2020-12-31 13F/A-2 AVISTA COM 05379B107 1,299,406 14,551 1.13 52,157 18.98 0.0188
2021-02-11 2020-12-31 13F AVISTA COM 05379B107 1,299,406 14,551 52,157 18,836.3361
2020-11-12 2020-09-30 13F AVISTA COM 05379B107 1,284,855 -16,717 -1.28 43,838 -7.44 0.0186
2020-08-13 2020-06-30 13F AVISTA COM 05379B107 1,301,572 -40,378 -3.01 47,362 -16.95 0.0208
2020-05-14 2020-03-31 13F AVISTA COM 05379B107 1,341,950 -1,513 -0.11 57,025 -11.74 0.0297
2020-02-14 2019-12-31 13F AVISTA COM 05379B107 1,343,463 -14,700 -1.08 64,607 -1.80 0.0235
2019-11-12 2019-09-30 13F AVISTA COM 05379B107 1,358,163 497 0.04 65,790 8.65 0.0256
2019-08-13 2019-06-30 13F AVISTA COM 05379B107 1,357,666 527 0.04 60,551 9.84 0.0235
2019-08-12 2019-03-31 13F/A-2 AVISTA COM 05379B107 1,357,139 15,707 1.17 55,126 -3.26 0.0220
2019-05-10 2019-03-31 13F AVISTA COM 05379B107 1,357,139 15,707 55,126
2019-02-26 2018-12-31 13F/A-1 AVISTA COM 05379B107 1,341,432 9,594 0.72 56,984 -15.37 0.0258
2019-02-13 2018-12-31 13F AVISTA COM 05379B107 1,341,432 9,594 56,984
2018-11-13 2018-09-30 13F AVISTA COM 05379B107 1,331,838 426 0.03 67,337 -3.96 0.0256
2018-08-10 2018-06-30 13F AVISTA COM 05379B107 1,331,412 -330 -0.02 70,112 2.73 0.0280
2018-05-11 2018-03-31 13F AVISTA COM 05379B107 1,331,742 -11,393 -0.85 68,252 -1.31 0.0284
2018-02-12 2017-12-31 13F AVISTA COM 05379B107 1,343,135 1,498 0.11 69,158 -0.43 0.0287
2017-11-13 2017-09-30 13F AVISTA COM 05379B107 1,341,637 1,223 0.09 69,456 22.04 0.0304
2017-08-11 2017-06-30 13F AVISTA COM 05379B107 1,340,414 43,280 3.34 56,914 12.36 0.0263
2017-05-12 2017-03-31 13F AVISTA COM 05379B107 1,297,134 20,888 1.64 50,653 -0.75 0.0242
2017-02-09 2016-12-31 13F AVISTA COM 05379B107 1,276,246 6,729 0.53 51,038 -3.80 0.0255
2016-11-10 2016-09-30 13F AVISTA COM 05379B107 1,269,517 -6,268 -0.49 53,054 -7.17 0.0287
2016-08-09 2016-06-30 13F AVISTA COM 05379B107 1,275,785 2,081 0.16 57,152 10.03 0.0329
2016-05-13 2016-03-31 13F AVISTA COM 05379B107 1,273,704 59,956 4.94 51,942 20.99 0.0311
2016-02-10 2015-12-31 13F AVISTA COM 05379B107 1,213,748 72,891 6.39 42,932 13.18 0.0268
2015-11-13 2015-09-30 13F AVISTA COM 05379B107 1,140,857 18,840 1.68 37,933 10.30 0.0249
2015-08-14 2015-06-30 13F AVISTA COM 05379B107 1,122,017 29,747 2.72 34,391 -7.88 0.0211
2015-05-14 2015-03-31 13F AVISTA COM 05379B107 1,092,270 71,077 6.96 37,332 3.41 0.0236
2015-02-06 2014-12-31 13F AVISTA COM 05379B107 1,021,193 64,689 6.76 36,102 23.62 0.0237
2014-11-13 2014-09-30 13F AVISTA COM 05379B107 956,504 44,569 4.89 29,203 -4.46 0.0207
2014-08-08 2014-06-30 13F AVISTA COM 05379B107 911,935 69,997 8.31 30,567 18.46 0.0212
2014-05-14 2014-03-31 13F AVISTA COM 05379B107 841,938 78,204 10.24 25,804 19.85 0.0193
2014-02-12 2013-12-31 13F AVISTA COM 05379B107 763,734 16,378 2.19 21,530 9.12 0.0168
2013-11-13 2013-09-30 13F AVISTA COM 05379B107 747,356 9,804 1.33 19,730 -1.00 0.0171
2013-08-15 2013-06-30 13F AVISTA COM 05379B107 737,552 737,552 19,929 0.0188
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.