Avista Corporation
US ˙ NYSE ˙ US05379B1070

SecurityAVA / Avista Corporation
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership25,810 shares
Latest Disclosed Value $ 1,036
Natixis Advisors, L.p. reports 5.38% increase in ownership of AVA / Avista Corporation

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 25,810 shares of Avista Corporation (US:AVA) valued at $1,036,013 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 24,492 shares of Avista Corporation. The current value of the position is $1,073,954 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)
2026-05-13 2026-03-31 13F AVISTA COM 05379B107 25,810 1,318 5.38 1 0.0014
2026-02-10 2025-12-31 13F AVISTA COM 05379B107 24,492 2,133 9.54 1 0.0013
2025-11-13 2025-09-30 13F AVISTA COM 05379B107 22,359 -11,201 -33.38 1 -100.00 0.0012
2025-08-13 2025-06-30 13F AVISTA COM 05379B107 33,560 -319 -0.94 1 0.00 0.0020
2025-05-08 2025-03-31 13F AVISTA COM 05379B107 33,879 3,106 10.09 1 0.00 0.0026
2025-02-10 2024-12-31 13F AVISTA COM 05379B107 30,773 664 2.21 1 0.00 0.0021
2024-11-06 2024-09-30 13F AVISTA COM 05379B107 30,109 974 3.34 1 0.00 0.0023
2024-08-01 2024-06-30 13F AVISTA COM 05379B107 29,135 1,447 5.23 1 0.0022
2024-04-25 2024-03-31 13F AVISTA COM 05379B107 27,688 5,816 26.59 1 0.0022
2024-02-06 2023-12-31 13F AVISTA COM 05379B107 21,872 946 4.52 1 0.0021
2023-11-13 2023-09-30 13F AVISTA COM 05379B107 20,926 -2,179 -9.43 1 0.0021
2023-08-15 2023-06-30 13F AVISTA COM 05379B107 23,105 -3,627 -13.57 1 -100.00 0.0028
2023-05-11 2023-03-31 13F AVISTA COM 05379B107 26,732 1,852 7.44 1 0.00 0.0039
2023-01-27 2022-12-31 13F AVISTA COM 05379B107 24,880 3,355 15.59 1 -99.87 0.0042
2022-11-14 2022-09-30 13F AVISTA COM 05379B107 21,525 825 3.99 798 -11.43 0.0034
2022-08-12 2022-06-30 13F AVISTA COM 05379B107 20,700 -671 -3.14 901 -6.63 0.0040
2022-05-12 2022-03-31 13F AVISTA COM 05379B107 21,371 2,657 14.20 965 21.38 0.0037
2022-02-08 2021-12-31 13F AVISTA COM 05379B107 18,714 1,809 10.70 795 20.27 0.0030
2021-11-15 2021-09-30 13F AVISTA COM 05379B107 16,905 -233 -1.36 661 -9.58 0.0027
2021-08-12 2021-06-30 13F AVISTA COM 05379B107 17,138 207 1.22 731 -9.53 0.0034
2021-05-05 2021-03-31 13F AVISTA COM 05379B107 16,931 998 6.26 808 26.25 0.0042
2021-02-12 2020-12-31 13F AVISTA COM 05379B107 15,933 1,475 10.20 640 29.82 0.0037
2020-11-12 2020-09-30 13F AVISTA COM 05379B107 14,458 2,617 22.10 493 14.39 0.0031
2020-08-11 2020-06-30 13F AVISTA COM 05379B107 11,841 -874 -6.87 431 -20.19 0.0029
2020-04-27 2020-03-31 13F AVISTA COM 05379B107 12,715 12,715 540 0.0044
2016-02-12 2015-12-31 13F AVISTA COM 05379B107 0 0 0 0.0000
2015-11-12 2015-09-30 13F AVISTA COM 05379B107 0 0 0 0.0000
2015-08-14 2015-06-30 13F AVISTA COM 05379B107 0 -10,770 -100.00 0 -100.00
2015-05-15 2015-03-31 13F AVISTA COM 05379B107 10,770 110 1.03 368 -2.39 0.0065
2015-02-05 2014-12-31 13F AVISTA COM 05379B107 10,660 10,660 377 0.0071
2014-11-03 2014-09-30 13F AVISTA COM 05379B107 0 -8,815 -100.00 0 -100.00
2014-08-13 2014-06-30 13F AVISTA COM 05379B107 8,815 236 2.75 295 12.17 0.0042
2014-05-13 2014-03-31 13F AVISTA COM 05379B107 8,579 -129 -1.48 263 7.35 0.0040
2014-02-12 2013-12-31 13F AVISTA COM 05379B107 8,708 410 4.94 245 11.87 0.0040
2013-10-30 2013-09-30 13F AVISTA COM 05379B107 8,298 -374 -4.31 219 -6.41 0.0040
2013-07-19 2013-06-30 13F AVISTA COM 05379B107 8,672 8,672 234 0.0047
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.