Avista Corporation
US ˙ NYSE ˙ US05379B1070

SecurityAVA / Avista Corporation
InstitutionNorthern Trust Corp
Latest Disclosed Ownership807,113 shares
Latest Disclosed Value $ 32,397,515
Northern Trust Corp reports 1.91% increase in ownership of AVA / Avista Corporation

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 807,113 shares of Avista Corporation (US:AVA) valued at $32,397,516 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 792,021 shares of Avista Corporation. This represents a change in shares of 1.91% during the quarter. The current value of the position is $33,583,972 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)
2026-05-14 2026-03-31 13F AVISTA COM 05379B107 807,113 15,092 1.91 32,398 6.14 0.0009
2026-02-17 2025-12-31 13F AVISTA COM 05379B107 792,021 -40,082 -4.82 30,524 -2.98 0.0008
2025-11-14 2025-09-30 13F AVISTA COM 05379B107 832,103 -3,581 -0.43 31,462 -0.80 0.0009
2025-08-13 2025-06-30 13F AVISTA COM 05379B107 835,684 -181,230 -17.82 31,714 -25.52 0.0044
2025-05-13 2025-03-31 13F AVISTA COM 05379B107 1,016,914 -8,141 -0.79 42,578 13.40 0.0063
2025-02-14 2024-12-31 13F AVISTA COM 05379B107 1,025,055 79,576 8.42 37,548 2.48 0.0053
2024-11-13 2024-09-30 13F AVISTA COM 05379B107 945,479 145,569 18.20 36,637 32.34 0.0060
2024-08-14 2024-06-30 13F AVISTA COM 05379B107 799,910 -27,438 -3.32 27,685 -4.45 0.0047
2024-05-14 2024-03-31 13F AVISTA COM 05379B107 827,348 -129,436 -13.53 28,974 -15.27 0.0050
2024-02-13 2023-12-31 13F AVISTA COM 05379B107 956,784 63,389 7.10 34,195 18.24 0.0062
2023-11-13 2023-09-30 13F AVISTA COM 05379B107 893,395 -20,394 -2.23 28,919 -19.41 0.0056
2023-08-11 2023-06-30 13F AVISTA COM 05379B107 913,789 12,954 1.44 35,884 -6.16 0.0069
2023-05-15 2023-03-31 13F AVISTA COM 05379B107 900,835 -14,872 -1.62 38,240 -5.82 0.0076
2023-02-13 2022-12-31 13F AVISTA COM 05379B107 915,707 27,243 3.07 40,602 23.35 0.0085
2022-11-14 2022-09-30 13F AVISTA COM 05379B107 888,464 -1,653 -0.19 32,917 -15.01 0.0075
2022-08-12 2022-06-30 13F AVISTA COM 05379B107 890,117 293 0.03 38,730 -3.60 0.0083
2022-05-13 2022-03-31 13F AVISTA COM 05379B107 889,824 -18,671 -2.06 40,175 4.07 0.0071
2022-02-08 2021-12-31 13F AVISTA COM 05379B107 908,495 12,477 1.39 38,602 10.13 0.0063
2021-11-15 2021-09-30 13F AVISTA COM 05379B107 896,018 -26,907 -2.92 35,051 -11.00 0.0062
2021-08-13 2021-06-30 13F AVISTA COM 05379B107 922,925 -12,521 -1.34 39,382 -11.83 0.0069
2021-05-12 2021-03-31 13F AVISTA COM 05379B107 935,446 -157,807 -14.43 44,668 1.79 0.0083
2021-02-11 2020-12-31 13F AVISTA COM 05379B107 1,093,253 -22,907 -2.05 43,884 15.23 0.0085
2020-11-16 2020-09-30 13F AVISTA COM 05379B107 1,116,160 -38,001 -3.29 38,084 -9.32 0.0084
2020-08-14 2020-06-30 13F AVISTA COM 05379B107 1,154,161 246,307 27.13 42,000 8.88 0.0100
2020-05-14 2020-03-31 13F AVISTA COM 05379B107 907,854 5,364 0.59 38,574 -11.12 0.0111
2020-02-14 2019-12-31 13F AVISTA COM 05379B107 902,490 -71,290 -7.32 43,401 -7.99 0.0097
2019-11-13 2019-09-30 13F AVISTA COM 05379B107 973,780 35,143 3.74 47,170 12.68 0.0113
2019-08-13 2019-06-30 13F AVISTA COM 05379B107 938,637 90,617 10.69 41,863 21.54 0.0099
2019-05-13 2019-03-31 13F AVISTA COM 05379B107 848,020 7,763 0.92 34,445 -3.50 0.0085
2019-02-12 2018-12-31 13F AVISTA COM 05379B107 840,257 -5,097 -0.60 35,693 -16.49 0.0100
2018-11-14 2018-09-30 13F AVISTA COM 05379B107 845,354 19,800 2.40 42,741 -1.69 0.0105
2018-09-18 2018-06-30 13F/A-1 AVISTA COM 05379B107 825,554 -1,091,622 -56.94 43,475 -55.75 0.0110
2018-08-14 2018-06-30 13F AVISTA COM 05379B107 829,831 -1,087,345 43,700
2018-05-09 2018-03-31 13F AVISTA COM 05379B107 1,917,176 241 0.01 98,255 -0.45 0.0256
2018-02-14 2017-12-31 13F AVISTA COM 05379B107 1,916,935 -19,685 -1.02 98,703 -1.55 0.0250
2017-11-13 2017-09-30 13F AVISTA COM 05379B107 1,936,620 2,557 0.13 100,258 22.09 0.0261
2017-08-11 2017-06-30 13F AVISTA COM 05379B107 1,934,063 122,115 6.74 82,120 16.06 0.0230
2017-05-12 2017-03-31 13F AVISTA COM 05379B107 1,811,948 13,578 0.76 70,756 -1.61 0.0204
2017-02-13 2016-12-31 13F AVISTA COM 05379B107 1,798,370 38,913 2.21 71,916 -2.19 0.0221
2016-11-09 2016-09-30 13F AVISTA COM 05379B107 1,759,457 30,559 1.77 73,528 -5.07 0.0229
2016-08-12 2016-06-30 13F AVISTA COM 05379B107 1,728,898 49,635 2.96 77,455 13.31 0.0251
2016-08-19 2016-03-31 13F/A-1 AVISTA COM 05379B107 1,679,263 33,463 2.03 68,359 17.43 0.0227
2016-05-13 2016-03-31 13F Avista COMM 05379B107 1,679,263 68,481
2016-02-12 2015-12-31 13F Avista COMM 05379B107 1,645,800 -52,747 -3.11 58,212 3.07 0.0193
2015-11-12 2015-09-30 13F Avista COMM 05379B107 1,698,547 111,320 7.01 56,476 16.09 0.0188
2015-08-13 2015-06-30 13F AVISTA COM 05379B107 1,587,227 26,234 1.68 48,648 -8.82 0.0330
2015-08-13 2015-06-30 13F Avista COMM 005379B10 62,500 -1,498,493 1,916 0.0013
2015-05-14 2015-03-31 13F Avista COMM 05379B107 1,560,993 84,896 5.75 53,355 2.25 0.0160
2015-02-12 2014-12-31 13F Avista COM 05379B107 1,476,097 -45,596 -3.00 52,179 12.31 0.0158
2014-11-13 2014-09-30 13F Avista COMM 05379B107 1,521,693 72,443 5.00 46,458 -4.37 0.0146
2014-08-14 2014-06-30 13F AVISTA com 05379B107 1,449,250 -120,804 -7.69 48,579 0.95 0.0151
2014-05-14 2014-03-31 13F AVISTA COMM 05379B107 1,570,054 35,149 2.29 48,121 11.21 0.0151
2014-02-21 2013-12-31 13F/A-1 AVISTA COM 05379B107 1,534,905 -5,870 -0.38 43,270 6.37 0.0139
2014-02-12 2013-12-31 13F AVISTA COM 05379B107 1,534,905 43,270
2013-11-13 2013-09-30 13F AVISTA COM 05379B107 1,540,775 6,876 0.45 40,677 -1.86 0.0143
2013-08-09 2013-06-30 13F AVISTA COM 05379B107 1,533,899 1,533,899 41,446 0.0150
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.