This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/POWI/capital-change-brief"
Use Arkolith's capital_change_brief for POWI. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $436.3M | 8.5M | ▲+0.1% Added · +10K sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $254.8M | 5.0M | ▲New +5.0M sh | Q1 2026 | |
| 3 | Neuberger Berman Group LLC | $201.4M | 3.9M | ▼−1.0% Reduced · −40K sh | Q1 2026 | |
| 4 | STATE STREET CORP | $157.6M | 3.1M | ▼−9.5% Reduced · −323K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $128.4M | 2.5M | ▲New +2.5M sh | Q1 2026 | |
| 6 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $121.9M | 2.4M | ▲New +2.4M sh | Q1 2026 | |
| 7 | SNYDER CAPITAL MANAGEMENT L P | $107.7M | 2.1M | ▲+1.9% Added · +39K sh | Q1 2026 | |
| 8 | DISCIPLINED GROWTH INVESTORS INC /MN | $100.3M | 2.0M | ▼−2.1% Reduced · −43K sh | Q1 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $85.8M | 1.7M | ▲+4.4% Added · +71K sh | Q1 2026 | |
| 10 | MORGAN STANLEY | $76.9M | 1.5M | ▲+1.5% Added · +22K sh | Q1 2026 | |
| 11 | PRICE T ROWE ASSOCIATES INC /MD/ | $71.5M | 1.4M | ▲+48% Added · +453K sh | Q1 2026 | |
| 12 | Copeland Capital Management, LLC | $67.7M | 1.3M | ▲+13% Added · +148K sh | Q1 2026 | |
| 13 | JPMORGAN CHASE & CO | $61.9M | 1.3M | ▼−22% Reduced · −366K sh | Q1 2026 | |
| 14 | DIMENSIONAL FUND ADVISORS LP | $54.1M | 1.1M | ▲+7.3% Added · +72K sh | Q1 2026 | |
| 15 | Nuveen, LLC | $53.7M | 1.0M | ▲+687% Added · +915K sh | Q1 2026 | |
| 16 | Hudson Bay Capital Management LP | $51.2M | 1.0M | ▲New +1.0M sh | Q1 2026 | |
| 17 | WESTWOOD HOLDINGS GROUP INC | $44.7M | 873K | ▼−16% Reduced · −164K sh | Q1 2026 | |
| 18 | Robeco Schweiz AG | $44.6M | 870K | ▲+39% Added · +243K sh | Q1 2026 | |
| 19 | NORTHERN TRUST CORP | $43.1M | 842K | ▲+2.0% Added · +17K sh | Q1 2026 | |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $38.8M | 758K | ▲+5.5% Added · +40K sh | Q1 2026 | |
| 21 | Stephens Investment Management Group LLC | $38.2M | 745K | ▼−0.4% Reduced · −3K sh | Q1 2026 | |
| 22 | BROWN ADVISORY INC | $35.2M | 687K | ▼−8.3% Reduced · −62K sh | Q1 2026 | |
| 23 | BNP Paribas Asset Management Holding S.A. | $32.7M | 638K | ▲+6.7% Added · +40K sh | Q1 2026 | |
| 24 | UBS Group AG | $32.0M | 625K | ▲+126% Added · +348K sh | Q1 2026 | |
| 25 | BANK OF AMERICA CORP /DE/ | $30.8M | 601K | ▲+1.1% Added · +7K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 1, 2026 | Arienzo Wendy | Director | Grant (A) | 2K | $0 |
| Jul 1, 2026 | Gioia Nancy Lee | Director | Grant (A) | 2K | $0 |
| Jul 1, 2026 | IYER BALAKRISHNAN S | Director | Grant (A) | 2K | $0 |
| Jul 1, 2026 | Vig Ravi | Director | Grant (A) | 2K | $0 |
| Jul 1, 2026 | Ganti Anita | Director | Grant (A) | 2K | $0 |
| Jul 1, 2026 | LOWE GREGG A | Director | Grant (A) | 2K | $0 |
| May 29, 2026 | Gupta Sunil | Sr. Vice President, Operations | Sell (S) | 7K | $574K |
| May 28, 2026 | BALAKRISHNAN BALU | Director | Sell (S) | 95K | $8.2M |
| May 28, 2026 | BALAKRISHNAN BALU | Director | Sell (S) | 29K | $2.5M |
| May 27, 2026 | BRATHWAITE NICHOLAS | Director | Sell (S) | 2K | $150K |
| May 26, 2026 | BALAKRISHNAN BALU | Director | Sell (S) | 48K | $3.9M |
| May 26, 2026 | BALAKRISHNAN BALU | Director | Sell (S) | 71K | $5.8M |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 95 funds | $44.1B |
| ALPHABET INC-CL AGOOGL | 93 funds | $29.2B |
| APPLE INCAAPL | 92 funds | $50.7B |
| BROADCOM INCAVGO | 92 funds | $21.9B |
| ELI LILLY & COLLY | 92 funds | $11.6B |
| NVIDIA CORPNVDA | 91 funds | $60.5B |
| AMAZON.COM INCAMZN | 91 funds | $33.0B |
| META PLATFORMS INC-CLASS AMETA | 91 funds | $18.2B |
| COSTCO WHOLESALE CORPCOST | 91 funds | $7.8B |
| TJX COMPANIES INCTJX | 90 funds | $4.5B |
| ORACLE CORPORCL | 90 funds | $4.3B |
| UNITEDHEALTH GROUP INCUNH | 90 funds | $4.2B |
Ranked by how many of POWI's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for POWI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.