The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query WGO owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/WGO"
Use Arkolith to show who owns WGO, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $143.8M | 4.6M | ▼−2.8% Reduced · −135K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $80.6M | 2.0M | ▲+0.8% Added · +15K sh | Q4 2025 | |
| 3 | COOKE & BIELER LP | $54.1M | 1.7M | ▼−0.8% Reduced · −14K sh | Q1 2026 | |
| 4 | DIMENSIONAL FUND ADVISORS LP | $49.0M | 1.6M | ▲+8.9% Added · +129K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $36.9M | 1.2M | ▲New +1.2M sh | Q1 2026 | |
| 6 | Maple Rock Capital Partners Inc. | $36.3M | 1.2M | ▲New +1.2M sh | Q1 2026 | |
| 7 | STATE STREET CORP | $34.2M | 1.1M | ▼−0.2% Reduced · −2K sh | Q1 2026 | |
| 8 | PZENA INVESTMENT MANAGEMENT LLC | $30.8M | 993K | ▲+6.9% Added · +64K sh | Q1 2026 | |
| 9 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $26.9M | 866K | ▼−2.6% Reduced · −23K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $21.1M | 682K | ▲+3.4% Added · +22K sh | Q1 2026 | |
| 11 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $20.6M | 665K | ▲+73% Added · +280K sh | Q1 2026 | |
| 12 | BANK OF MONTREAL /CAN/ | $20.1M | 650K | ▼−7.3% Reduced · −51K sh | Q1 2026 | |
| 13 | ALLIANCEBERNSTEIN L.P. | $19.7M | 487K | ▼−7.6% Reduced · −40K sh | Q1 2026 | |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | $18.7M | 605K | ▲New +605K sh | Q1 2026 | |
| 15 | DEPRINCE RACE & ZOLLO INC | $17.8M | 573K | ▲+301% Added · +430K sh | Q1 2026 | |
| 16 | MORGAN STANLEY | $15.9M | 514K | ▼−5.2% Reduced · −28K sh | Q1 2026 | |
| 17 | JPMORGAN CHASE & CO | $13.1M | 415K | ▲+116% Added · +223K sh | Q1 2026 | |
| 18 | AMERIPRISE FINANCIAL INC | $12.5M | 403K | ▼−2.0% Reduced · −8K sh | Q1 2026 | |
| 19 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $12.0M | 387K | ▲+3.6% Added · +14K sh | Q1 2026 | |
| 20 | NORTHERN TRUST CORP | $9.9M | 318K | ▲+9.1% Added · +27K sh | Q1 2026 | |
| 21 | Nuveen, LLC | $9.7M | 312K | ▼−24% Reduced · −98K sh | Q1 2026 | |
| 22 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | $9.6M | 310K | ▲+1.8% Added · +6K sh | Q1 2026 | |
| 23 | Man Group plc | $8.7M | 281K | ▲+199% Added · +187K sh | Q1 2026 | |
| 24 | GOLDMAN SACHS GROUP INC | $8.6M | 279K | ▼−8.7% Reduced · −26K sh | Q1 2026 | |
| 25 | AQR CAPITAL MANAGEMENT LLC | $7.7M | 249K | ▲+102% Added · +126K 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 |
|---|---|---|---|---|---|
| Feb 27, 2026 | Pack Michael E | Director | Grant (A) | 565 | $23K |
| Feb 27, 2026 | MILES DAVID W | Director | Grant (A) | 180 | $7K |
| Nov 28, 2025 | MILES DAVID W | Director | Grant (A) | 829 | $30K |
| Nov 28, 2025 | Pack Michael E | Director | Grant (A) | 622 | $23K |
| Nov 13, 2025 | Fisher William C. | Director | Gift (G) | 1K | $0 |
| Oct 27, 2025 | Happe Michael J | PRESIDENT & CEO, Director | Option exercise (M) | 10K | $0 |
| Oct 27, 2025 | Happe Michael J | PRESIDENT & CEO, Director | Option exercise (M) | 10K | $167K |
| Oct 27, 2025 | Happe Michael J | PRESIDENT & CEO, Director | Sell (S) | 7K | $294K |
| Oct 24, 2025 | Armbruster Sara E | Director | Buy (P) | 3K | $109K |
| Oct 15, 2025 | Woodson Bret A | SVP-CHRO | Tax withholding (F) | 400 | $12K |
| Oct 15, 2025 | Hughes Bryan L | SVP & CHIEF FINANCIAL OFFICER | Tax withholding (F) | 793 | $24K |
| Oct 15, 2025 | West Christopher David | President, Winnebago Motorhome | Tax withholding (F) | 500 | $15K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 76 funds | $34.4B |
| ALPHABET INC-CL AGOOGL | 74 funds | $23.1B |
| ELI LILLY & COLLY | 74 funds | $9.1B |
| META PLATFORMS INC-CLASS AMETA | 73 funds | $16.5B |
| COSTCO WHOLESALE CORPCOST | 73 funds | $6.4B |
| BROADCOM INCAVGO | 72 funds | $17.1B |
| JPMORGAN CHASE & COJPM | 72 funds | $12.0B |
| UNITEDHEALTH GROUP INCUNH | 72 funds | $3.6B |
| GENERAL MOTORS COGM | 72 funds | $2.3B |
| APPLE INCAAPL | 71 funds | $41.2B |
| AMAZON.COM INCAMZN | 71 funds | $25.6B |
| MASTERCARD INC - AMA | 71 funds | $6.8B |
Ranked by how many of WGO'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 WGO. 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.