Avista Corporation
US ˙ NYSE ˙ US05379B1070

SecurityAVA / Avista Corporation
InstitutionMan Group plc
Latest Disclosed Ownership434,541 shares
Latest Disclosed Value $ 17,442,476
Man Group plc reports 190.73% increase in ownership of AVA / Avista Corporation

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 434,541 shares of Avista Corporation (US:AVA) valued at $17,442,476 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 149,464 shares of Avista Corporation. This represents a change in shares of 190.73% during the quarter. The current value of the position is $17,850,944 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 434,541 285,077 190.73 17,442 202.81 0.0316
2026-02-17 2025-12-31 13F AVISTA COM 05379B107 149,464 149,464 5,760 0.0098
2025-08-14 2025-06-30 13F AVISTA COM 05379B107 0 -68,156 -100.00 0 -100.00
2025-05-15 2025-03-31 13F AVISTA COM 05379B107 68,156 -18,972 -21.77 2,854 -10.59 0.0072
2025-02-14 2024-12-31 13F AVISTA COM 05379B107 87,128 -44,601 -33.86 3,191 -37.48 0.0084
2024-11-14 2024-09-30 13F AVISTA COM 05379B107 131,729 31,788 31.81 5,104 47.60 0.0133
2024-08-14 2024-06-30 13F AVISTA COM 05379B107 99,941 -23,936 -19.32 3,459 -20.29 0.0087
2024-05-15 2024-03-31 13F AVISTA COM 05379B107 123,877 94,301 318.84 4,338 310.41 0.0109
2024-02-14 2023-12-31 13F AVISTA COM 05379B107 29,576 1,057 238.78 0.0029
2023-05-15 2023-03-31 13F AVISTA COM 05379B107 313 -74.30 0.0011
2023-02-14 2022-12-31 13F AVISTA COM 05379B107 27,385 -2,193 -7.41 1,214 10.77 0.0044
2022-11-14 2022-09-30 13F AVISTA COM 05379B107 29,578 1,096 46.33 0.0051
2022-08-15 2022-06-30 13F AVISTA COM 05379B107 749 3.45 0.0032
2022-05-16 2022-03-31 13F AVISTA COM 05379B107 16,030 65 0.41 724 6.78 0.0025
2022-02-14 2021-12-31 13F AVISTA COM 05379B107 15,965 3,126 24.35 678 35.06 0.0022
2021-11-15 2021-09-30 13F AVISTA COM 05379B107 12,839 -15,416 -54.56 502 -58.37 0.0018
2021-08-16 2021-06-30 13F AVISTA COM 05379B107 28,255 16,766 145.93 1,206 119.67 0.0042
2021-05-17 2021-03-31 13F AVISTA COM 05379B107 11,489 613 5.64 549 25.63 0.0024
2021-02-16 2020-12-31 13F AVISTA COM 05379B107 10,876 532 5.14 437 23.80 0.0019
2020-11-16 2020-09-30 13F AVISTA COM 05379B107 10,344 -12,786 -55.28 353 -58.08 0.0014
2020-08-14 2020-06-30 13F AVISTA COM 05379B107 23,130 -84,181 -78.45 842 -81.54 0.0042
2020-05-15 2020-03-31 13F AVISTA COM 05379B107 107,311 -64,398 -37.50 4,560 -44.78 0.0295
2020-02-18 2019-12-31 13F AVISTA COM 05379B107 171,709 -72,607 -29.72 8,258 -30.22 0.0272
2019-11-14 2019-09-30 13F AVISTA COM 05379B107 244,316 -192,813 -44.11 11,835 -39.30 0.0440
2019-08-14 2019-06-30 13F AVISTA COM 05379B107 437,129 127,210 41.05 19,497 54.86 0.0705
2019-05-15 2019-03-31 13F AVISTA COM 05379B107 309,919 309,919 12,590 0.0478
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.