William Blair Investment Management, LLC
· New
Change
+2.4M
Date
Q1 2026
PO
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
William Blair Investment Management, LLC
· New
Change
+2.4M
Date
Q1 2026
|
William Blair Investment Management, LLC | New· Q1 2026 | – | +2.4M | – | Q1 2026 | |||||
|
Hudson Bay Capital Management LP
· New
Change
+1.0M
Date
Q1 2026
|
Hudson Bay Capital Management LP | New· Q1 2026 | – | +1.0M | – | Q1 2026 | |||||
|
Wellington Management Group LLP
· Added
Change
+932K
Δ Own
+38.5%
Date
Q1 2026
|
Wellington Management Group LLP | Added· Q1 2026 | – | +932K | +38.5% | Q1 2026 | |||||
|
Nuveen, LLC
· Added
Change
+915K
Date
Q1 2026
|
Nuveen, LLC | Added· Q1 2026 | – | +915K | – | Q1 2026 | |||||
|
T. Rowe Price Associates
· Added
Change
+453K
Date
Q1 2026
|
T. Rowe Price Associates | Added· Q1 2026 | – | +453K | – | Q1 2026 | |||||
|
Voloridge Investment Management, LLC
· Reduced
Change
−433K
Date
Q1 2026
|
Voloridge Investment Management, LLC | Reduced· Q1 2026 | – | −433K | – | Q1 2026 | |||||
|
Vanguard
· Added
Change
+402K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +402K | – | Q1 2026 | |||||
|
JPMorgan Chase & Co
· Reduced
Change
−366K
Date
Q1 2026
|
JPMorgan Chase & Co | Reduced· Q1 2026 | – | −366K | – | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+348K
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +348K | – | Q1 2026 | |||||
|
Nomura Holdings Inc
· Reduced
Change
−329K
Date
Q1 2026
|
Nomura Holdings Inc | Reduced· Q1 2026 | – | −329K | – | Q1 2026 | |||||
|
State Street
· Reduced
Change
−323K
Date
Q1 2026
|
State Street | Reduced· Q1 2026 | – | −323K | – | Q1 2026 | |||||
|
Grandeur Peak Global Advisors, LLC
· Reduced
Change
−302K
Date
Q1 2026
|
Grandeur Peak Global Advisors, LLC | Reduced· Q1 2026 | – | −302K | – | Q1 2026 | |||||
|
Public Employees Retirement Association of Colorado
· Reduced
Change
−252K
Date
Q1 2026
|
Public Employees Retirement Association of Colorado | Reduced· Q1 2026 | – | −252K | – | Q1 2026 | |||||
|
Robeco Schweiz AG
· Added
Change
+243K
Date
Q1 2026
|
Robeco Schweiz AG | Added· Q1 2026 | – | +243K | – | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Exited
Change
−206K
Δ Own
−100.0%
Date
Q1 2026
|
Renaissance Technologies LLC | Exited· Q1 2026 | – | −206K | −100.0% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Lowe Gregg A.
· Director
Grant (A)
2K
|
Lowe Gregg A. | Director | Grant (A) | – | 2K | – | 7K | +59.3% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Arienzo Wendy
· Director
Grant (A)
2K
|
Arienzo Wendy | Director | Grant (A) | – | 2K | – | 20K | +14.3% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Ganti Anita
· Director
Grant (A)
2K
|
Ganti Anita | Director | Grant (A) | – | 2K | – | 15K | +20.0% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Gioia Nancy Lee
· Director
Grant (A)
2K
|
Gioia Nancy Lee | Director | Grant (A) | – | 2K | – | 10K | +34.1% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Iyer Balakrishnan S.
· Director
Grant (A)
2K
|
Iyer Balakrishnan S. | Director | Grant (A) | – | 2K | – | 27K | +10.3% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Vig Ravi
· Director
Grant (A)
2K
|
Vig Ravi | Director | Grant (A) | – | 2K | – | 9K | +36.6% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Gupta Sunil
· Officer
Sell
−$574K
|
Gupta Sunil | Officer | Sell | $83.67 | −7K | −$574K | 64K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Balakrishnan Balu
· Director
2 operations
−$11M
|
Balakrishnan Balu | Director | 2 operations | $86.25–$87.05 | −124K | −$11M | 280K | – | May 28, 2026 | May 29, 2026 | |||||||||
|
Brathwaite Nicholas
· Director
Sell
−$150K
|
Brathwaite Nicholas | Director | Sell | $86.62 | −2K | −$150K | 22K | – | May 27, 2026 | May 29, 2026 | |||||||||
|
Gupta Sunil
· Officer
Sell
−$1.3M
|
Gupta Sunil | Officer | Sell | $82.18 | −16K | −$1.3M | 71K | – | May 26, 2026 | May 28, 2026 | |||||||||
|
Brathwaite Nicholas
· Director
Sell
−$550K
|
Brathwaite Nicholas | Director | Sell | $82.71 | −7K | −$550K | 24K | – | May 26, 2026 | May 28, 2026 | |||||||||
|
Balakrishnan Balu
· Director
2 operations
−$9.7M
|
Balakrishnan Balu | Director | 2 operations | $80.93–$82.26 | −119K | −$9.7M | 404K | – | May 26, 2026 | May 28, 2026 | |||||||||
|
Balakrishnan Balu
· Director
Sell
−$3.8M
|
Balakrishnan Balu | Director | Sell | $70.71 | −54K | −$3.8M | 522K | – | May 21, 2026 | May 26, 2026 | |||||||||
|
Balow Michael
· Officer
Grant (A)
33K
|
Balow Michael | Officer | Grant (A) | – | 33K | – | 33K | – | May 15, 2026 | May 19, 2026 | |||||||||
|
Brathwaite Nicholas
· Director
Sell
−$499K
|
Brathwaite Nicholas | Director | Sell | $72.41 | −7K | −$499K | 31K | – | May 13, 2026 | May 15, 2026 | |||||||||
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295 reporting institutions disclosed POWI 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.