Comparable stake leader
BlackRock, Inc.
SEC ownership of AVISTA CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000104918.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
01 Sep 2026
- Public ticker
- AVA on NYSE
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
01 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000104918
- Issuer location
- Spokane, WA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of AVISTA CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
01 Sep 2026
13F
13D/G
3/4/5
Lead comparable stake: 16%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 16%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
16%
VANGUARD PORTFOLIO MANAGEMENT LLC
8.5%
VANGUARD CAPITAL MANAGEMENT LLC
5.3%
Scott L. Morris
0.13%
Heidi B. Stanley
0.05%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
16%
from 13D/G
|
$605,448,096
14,799,513 shares
|
— | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Portfolio Management
|
8.5%
from 13D/G
|
$294,777,660
7,205,516 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.3%
|
$174,112,388
4,337,628 shares
|
$0 | 31 Mar 2026 |
| Scott L. Morris |
3/4/5
Director, Chairman of the Board
|
0.13%
|
$4,474,653
109,378 shares
|
— | 01 Sep 2026 |
| Heidi B. Stanley |
3/4/5
Director
|
0.05%
|
$1,659,922
40,575 shares
|
— | 01 Sep 2026 |
| Donald C. Burke |
3/4/5
Director
|
0.04%
|
$1,476,278
36,086 shares
|
— | 01 Sep 2026 |
| Scott H. Maw |
3/4/5
Director
|
0.04%
|
$1,367,580
33,429 shares
|
— | 01 Sep 2026 |
| Rebecca A. Klein |
3/4/5
Director
|
0.04%
|
$1,279,337
31,272 shares
|
— | 01 Sep 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$624,373.
Buys
$130,518
Insiders: 1
Sells
$754,891
Insiders: 5
Net
-$624,373
Shares: -15,732
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 3,671
Shares: 19,403
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 4,675 | $0 | $174,098 | -$174,098 |
| 3-6 | 0 | 2,148 | $0 | $87,366 | -$87,366 |
| 6-9 | 0 | 3,553 | $0 | $140,191 | -$140,191 |
| 9-12 | 3,671 | 9,027 | $130,518 | $353,236 | -$222,717 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 28 reporting-owner rows connected to AVISTA CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
28
Largest Forms 3/4/5 holder
Dennis P. Vermillion
Net 12M change
-$624,373
Latest report
02 Sep 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Dennis P. Vermillion | EVP - Retired | $20,127,307 | Mixed | 10 Mar 2025 | ||
| Thies Mark T. | EVP - Retired | $9,670,831 | Mixed | 19 Feb 2024 | ||
| Heather L. Rosentrater | President & CEO | $8,294,778 | Mixed | 02 Mar 2026 | ||
| Jason R. Thackston | Senior Vice President | $6,089,029 | Mixed | 14 May 2026 | ||
| Kevin J. Christie | SVP, CFO & Treasurer | $5,681,081 | Mixed | 02 Mar 2026 | ||
| Scott L. Morris | Director, Chairman of the Board | $4,474,653 | Median | 01 Sep 2026 | ||
| Ryan L. Krasselt | Vice President | $3,683,776 | Mixed | 02 Mar 2026 | ||
| Gregory C. Hesler | Sr V President/Corp Secretary | $3,071,509 | Mixed | 02 Mar 2026 | ||
| Latisha D. Hill | Vice President | $2,305,124 | Mixed | 02 Mar 2026 | ||
| Wayne O Manuel | Senior Vice President | $2,085,824 | -$134,428 | -6.1% | Mixed | 07 May 2026 |
| Heidi B. Stanley | Director | $1,659,922 | Median | 01 Sep 2026 | ||
| Scott J. Kinney | Vice President | $1,656,504 | Mixed | 02 Mar 2026 | ||
| Joshua D. DiLuciano | Vice President | $1,496,041 | -$236,268 | -14% | Mixed | 02 Sep 2026 |
| Donald C. Burke | Director | $1,476,278 | Median | 01 Sep 2026 | ||
| James M. Kensok | Vice President - Retired | $1,415,771 | Mixed | 19 Feb 2024 | ||
| Bryan A. Cox | Senior Vice President | $1,369,300 | +$59,478 | +4.5% | Mixed | 02 Mar 2026 |
| Scott H. Maw | Director | $1,367,580 | Median | 01 Sep 2026 | ||
| Rebecca A. Klein | Director | $1,279,337 | Median | 01 Sep 2026 | ||
| Edward D. Schlect | Strategy Advisor | $1,202,069 | Mixed | 10 Jan 2023 | ||
| Janet D. Widmann | Director | $933,893 | -$285,875 | -23% | Median | 01 Sep 2026 |
Recent insider transactions for AVISTA CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Joshua D. DiLuciano | AVA | Common Stock | Sale | -35.9% | $174,098 | $37.24 | -4,675 | 8,334 | 02 Sep 2026 | Direct |
| Janet D. Widmann | AVA | Common Stock | Award | 0.19% | 44 | 22,828 | 01 Sep 2026 | Direct | ||
| Heidi B. Stanley | AVA | Common Stock | Award | 0.14% | 44 | 31,327 | 01 Sep 2026 | Direct | ||
| Jeffry L. Philipps | AVA | Common Stock | Award | 0.21% | 44 | 20,977 | 01 Sep 2026 | Direct | ||
| Scott L. Morris | AVA | Common Stock | Award | 0.04% | 44 | 109,378 | 01 Sep 2026 | Direct | ||
| Scott H. Maw | AVA | Common Stock | Award | 0.13% | 44 | 33,429 | 01 Sep 2026 | Direct | ||
| Sena M. Kwawu | AVA | Common Stock | Award | 0.24% | 44 | 18,459 | 01 Sep 2026 | Direct | ||
| Rebecca A. Klein | AVA | Common Stock | Award | 0.14% | 44 | 31,272 | 01 Sep 2026 | Direct | ||
| Kevin B. Jacobsen | AVA | Common Stock | Award | 0.28% | 44 | 15,917 | 01 Sep 2026 | Direct | ||
| Donald C. Burke | AVA | Common Stock | Award | 0.12% | 44 | 36,086 | 01 Sep 2026 | Direct | ||
| Julie A. Bentz | AVA | Common Stock | Award | 0.26% | 44 | 16,852 | 01 Sep 2026 | Direct | ||
| David J. Meyer | AVA | Shares Held in Executive Deferral Plan | Other | -1.2% | -44.66 | 3,662 | 15 Jun 2026 | Shares Held by Trustee | ||
| David J. Meyer | AVA | Shares Held in Executive Deferral Plan | Other | -1.7% | -45.32 | 2,618 | 15 May 2026 | Shares Held by Trustee | ||
| Jason R. Thackston | AVA | Common Stock | Gift | -7.17% | -3,210 | 41,578 | 14 May 2026 | Direct | ||
| Janet D. Widmann | AVA | Common Stock | Award | 18.4% | 3,538 | 22,784 | 08 May 2026 | Direct | ||
| Heidi B. Stanley | AVA | Common Stock | Award | 12.8% | 3,538 | 31,283 | 08 May 2026 | Direct | ||
| Jeffry L. Philipps | AVA | Common Stock | Award | 20.3% | 3,538 | 20,933 | 08 May 2026 | Direct | ||
| Scott L. Morris | AVA | Common Stock | Award | 3.34% | 3,538 | 109,334 | 08 May 2026 | Direct | ||
| Scott H. Maw | AVA | Common Stock | Award | 11.8% | 3,538 | 33,385 | 08 May 2026 | Direct | ||
| Sena M. Kwawu | AVA | Common Stock | Award | 23.8% | 3,538 | 18,415 | 08 May 2026 | Direct | ||
| Rebecca A. Klein | AVA | Common Stock | Award | 12.8% | 3,538 | 31,228 | 08 May 2026 | Direct | ||
| Kevin B. Jacobsen | AVA | Common Stock | Award | 28.7% | 3,538 | 15,873 | 08 May 2026 | Direct | ||
| Donald C. Burke | AVA | Common Stock | Award | 10.9% | 3,538 | 36,042 | 08 May 2026 | Direct | ||
| Julie A. Bentz | AVA | Common Stock | Award | 26.7% | 3,538 | 16,808 | 08 May 2026 | Direct | ||
| Wayne O Manuel | AVA | Common Stock | Sale | -13.2% | $65,277 | $40.98 | -1,593 | 10,521 | 07 May 2026 | Direct |
| David J. Meyer | AVA | Shares Held in Executive Deferral Plan | Other | -1.7% | -46.19 | 2,663 | 15 Apr 2026 | Shares Held by Trustee | ||
| David J. Meyer | AVA | Shares Held in Executive Deferral Plan | Other | -1.26% | -48.08 | 3,757 | 16 Mar 2026 | Shares Held by Trustee | ||
| Alexis G. Alexander | AVA | Common Stock | Sale | -12.4% | $22,090 | $39.80 | -555 | 3,930 | 13 Mar 2026 | Direct |
| Scott L. Morris | AVA | Common Stock | Gift | -7.53% | -8,613 | 105,796 | 09 Mar 2026 | Direct | ||
| Jason R. Thackston | AVA | Common Stock - Performance Shares (CEPS) | Tax liability | -1.1% | -500 | 44,788 | 02 Mar 2026 | Direct | ||
| Jason R. Thackston | AVA | Common Stock - Performance Shares (CEPS) | Options Exercise | 4.75% | 2,052 | 45,288 | 02 Mar 2026 | Direct | ||
| Jason R. Thackston | AVA | Conversion of 2023 Performance Shares (CEPS) | Options Exercise | -100% | -5,128 | 0 | 02 Mar 2026 | Direct | ||
| Heather L. Rosentrater | AVA | Common Stock - Performance Shares (CEPS) | Tax liability | -0.85% | -671 | 78,132 | 02 Mar 2026 | Direct | ||
| Heather L. Rosentrater | AVA | Common Stock - Performance Shares (CEPS) | Options Exercise | 3.62% | 2,752 | 78,803 | 02 Mar 2026 | Direct | ||
| Heather L. Rosentrater | AVA | Conversion of 2023 Performance Shares (CEPS) | Options Exercise | -100% | -6,879 | 0 | 02 Mar 2026 | Direct | ||
| David J. Meyer | AVA | Common Stock - Performance Shares (CEPS) | Tax liability | -4.78% | -256 | 5,104 | 02 Mar 2026 | Direct | ||
| David J. Meyer | AVA | Common Stock - Performance Shares (CEPS) | Options Exercise | 24.4% | 1,051 | 5,360 | 02 Mar 2026 | Direct | ||
| David J. Meyer | AVA | Conversion of 2023 Performance Shares (CEPS) | Options Exercise | -100% | -2,627 | 0 | 02 Mar 2026 | Direct | ||
| Wayne O Manuel | AVA | Common Stock - Performance Shares (CEPS) | Tax liability | -2.18% | -270 | 12,114 | 02 Mar 2026 | Direct | ||
| Wayne O Manuel | AVA | Common Stock - Performance Shares (CEPS) | Options Exercise | 9.57% | 1,082 | 12,384 | 02 Mar 2026 | Direct | ||
| Wayne O Manuel | AVA | Conversion of 2023 Performance Shares (CEPS) | Options Exercise | -100% | -2,705 | 0 | 02 Mar 2026 | Direct | ||
| Ryan L. Krasselt | AVA | Common Stock - Performance Shares (CEPS) | Tax liability | -0.83% | -255 | 30,537 | 02 Mar 2026 | Direct | ||
| Ryan L. Krasselt | AVA | Common Stock - Performance Shares (CEPS) | Options Exercise | 3.53% | 1,051 | 30,792 | 02 Mar 2026 | Direct | ||
| Ryan L. Krasselt | AVA | Conversion of 2023 Performance Shares (CEPS) | Options Exercise | -100% | -2,627 | 0 | 02 Mar 2026 | Direct | ||
| Scott J. Kinney | AVA | Common Stock - Performance Shares (CEPS) | Tax liability | -2.01% | -275 | 13,418 | 02 Mar 2026 | Direct | ||
| Scott J. Kinney | AVA | Common Stock - Performance Shares (CEPS) | Options Exercise | 8.96% | 1,126 | 13,693 | 02 Mar 2026 | Direct | ||
| Scott J. Kinney | AVA | Conversion of 2023 Performance Shares (CEPS) | Options Exercise | -100% | -2,814 | 0 | 02 Mar 2026 | Direct | ||
| Latisha D. Hill | AVA | Common Stock - Performance Shares (CEPS) | Tax liability | -1.37% | -263 | 18,978 | 02 Mar 2026 | Direct | ||
| Latisha D. Hill | AVA | Common Stock - Performance Shares (CEPS) | Options Exercise | 5.78% | 1,051 | 19,241 | 02 Mar 2026 | Direct | ||
| Latisha D. Hill | AVA | Conversion of 2023 Performance Shares (CEPS) | Options Exercise | -100% | -2,627 | 0 | 02 Mar 2026 | Direct |
* marks a reported price that did not pass the local price check.