NW
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
State Street
· Reduced
Change
−466K
Date
Q1 2026
|
State Street | Reduced· Q1 2026 | – | −466K | – | Q1 2026 | |||||
|
BlackRock
· Reduced
Change
−427K
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | – | −427K | – | Q1 2026 | |||||
|
Victory Capital Management Inc
· Added
Change
+258K
Date
Q1 2026
|
Victory Capital Management Inc | Added· Q1 2026 | – | +258K | – | Q1 2026 | |||||
|
Duff & Phelps Investment Management Co
· Reduced
Change
−244K
Date
Q1 2026
|
Duff & Phelps Investment Management Co | Reduced· Q1 2026 | – | −244K | – | Q1 2026 | |||||
|
Nuveen, LLC
· Added
Change
+216K
Date
Q1 2026
|
Nuveen, LLC | Added· Q1 2026 | – | +216K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
Change
+215K
Δ Own
+370.5%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | – | +215K | +370.5% | Q1 2026 | |||||
|
Vaughan Nelson Investment Management, L.P.
· Reduced
Change
−203K
Date
Q1 2026
|
Vaughan Nelson Investment Management, L.P. | Reduced· Q1 2026 | – | −203K | – | Q1 2026 | |||||
|
Jupiter Asset Management Ltd
· New
Change
+188K
Date
Q1 2026
|
Jupiter Asset Management Ltd | New· Q1 2026 | – | +188K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Added
Change
+182K
Δ Own
+29.4%
Date
Q1 2026
|
Invesco Ltd. | Added· Q1 2026 | – | +182K | +29.4% | Q1 2026 | |||||
|
Thompson Siegel & Walmsley LLC
· Reduced
Change
−112K
Date
Q1 2026
|
Thompson Siegel & Walmsley LLC | Reduced· Q1 2026 | – | −112K | – | Q1 2026 | |||||
|
Vanguard
· Added
Change
+108K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +108K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Reduced
Change
−104K
Date
Q1 2026
|
Millennium Management LLC | Reduced· Q1 2026 | – | −104K | – | Q1 2026 | |||||
|
First Trust Advisors LP
· Reduced
Change
−104K
Date
Q1 2026
|
First Trust Advisors LP | Reduced· Q1 2026 | – | −104K | – | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· New
Change
+97K
Date
Q1 2026
|
Qube Research & Technologies Ltd | New· Q1 2026 | – | +97K | – | Q1 2026 | |||||
|
Point72 Asset Management, L.P.
· New
Change
+95K
Date
Q1 2026
|
Point72 Asset Management, L.P. | New· Q1 2026 | – | +95K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Anderson David Hugo
· Director
Sell
−$77K
|
Anderson David Hugo | Director | Sell | $51.18 | −2K | −$77K | 52K | −2.8% | Jul 20, 2026 | Jul 21, 2026 | |||||||||
|
Anderson David Hugo
· Director
Sell
−$76K
|
Anderson David Hugo | Director | Sell | $50.90 | −2K | −$76K | 54K | −2.7% | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Bragdon Peter J.
· Director
Buy
+$20K
|
Bragdon Peter J. | Director | Buy | $50.32 | +400 | +$20K | 800 | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Lee Karen
· Director
Other Form 4 events
$51K
|
Lee Karen | Director | Other Form 4 events | $50.19 | 1K | $51K | 23K | – | May 7, 2026 | May 11, 2026 | |||||||||
|
Ludford Mary E.
· Director
Other Form 4 events
$26K
|
Ludford Mary E. | Director | Other Form 4 events | $50.19 | 513 | $26K | 4K | – | May 7, 2026 | May 11, 2026 | |||||||||
|
McDonough Sandra
· Director
Other Form 4 events
$13K
|
McDonough Sandra | Director | Other Form 4 events | $50.19 | 250 | $13K | 11K | – | May 7, 2026 | May 11, 2026 | |||||||||
|
Bragdon Peter J.
· Director
Other Form 4 events
$58K
|
Bragdon Peter J. | Director | Other Form 4 events | $50.19 | 1K | $58K | 3K | – | May 7, 2026 | May 11, 2026 | |||||||||
|
Palfreyman Justin
· Director
Buy
+$60K
|
Palfreyman Justin | Director | Buy | $48.75 | +1K | +$60K | 22K | – | May 7, 2026 | May 7, 2026 | |||||||||
|
Weber David A.
· Officer, Other
Sell
−$89K
|
Weber David A. | Officer, Other | Sell | $52.57 | −2K | −$89K | 149 | – | Mar 23, 2026 | Mar 25, 2026 | |||||||||
|
Williams Kathryn M.
· Officer, Other
2 operations
-$73K
|
Williams Kathryn M. | Officer, Other | 2 operations | $52.53 | -1K | -$73K | 7K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Kravitz Zachary D.
· Officer, Other
2 operations
−$56
|
Kravitz Zachary D. | Officer, Other | 2 operations | $52.53 | −1 | −$56 | 3K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Kravitz Zachary D.
· Officer, Other
2 operations
-$60K
|
Kravitz Zachary D. | Officer, Other | 2 operations | $52.53 | -1K | -$60K | 4K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Kaszuba Raymond J. III
· Officer
Tax withholding or exercise payment (F)
-$42K
|
Kaszuba Raymond J. III | Officer | Tax withholding or exercise payment (F) | $52.53 | -802 | -$42K | 8K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Rogers Melinda B.
· Officer, Other
Sell
−$7
|
Rogers Melinda B. | Officer, Other | Sell | $52.53 | 0 | −$7 | 2K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Rogers Melinda B.
· Officer, Other
2 operations
-$35K
|
Rogers Melinda B. | Officer, Other | 2 operations | $52.53 | -663 | -$35K | 2K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
282 reporting institutions disclosed NWN position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.