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 UPWK 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/UPWK"
Use Arkolith to show who owns UPWK, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD PORTFOLIO MANAGEMENT LLC | $85.2M | 7.8M | ▲New +7.8M sh | Q1 2026 | |
| 2 | STATE STREET CORP | $56.2M | 5.1M | ▲+4.8% Added · +234K sh | Q1 2026 | |
| 3 | Invenomic Capital Management LP | $21.0M | 1.9M | ▲+160% Added · +1.2M sh | Q1 2026 | |
| 4 | Portolan Capital Management, LLC | $17.2M | 1.6M | ▲+118% Added · +851K sh | Q1 2026 | |
| 5 | RICE HALL JAMES & ASSOCIATES, LLC | $14.3M | 1.3M | ▲New +1.3M sh | Q1 2026 | |
| 6 | Fiera Capital Corp | $13.5M | 1.2M | ▼−11% Reduced · −148K sh | Q1 2026 | |
| 7 | VANGUARD FIDUCIARY TRUST CO | $9.8M | 897K | ▲New +897K sh | Q1 2026 | |
| 8 | PUBLIC SECTOR PENSION INVESTMENT BOARD | $6.1M | 553K | ▲+22% Added · +101K sh | Q1 2026 | |
| 9 | PEAK6 LLC | $3.8M | 343K | ▲+618% Added · +295K sh | Q1 2026 | |
| 10 | WINTON GROUP Ltd | $3.5M | 318K | ▲New +318K sh | Q1 2026 | |
| 11 | NATIXIS | $2.8M | 258K | ▲New +258K sh | Q1 2026 | |
| 12 | CITADEL ADVISORS LLC | $2.5M | 231K | ▲+644% Added · +200K sh | Q1 2026 | |
| 13 | Man Group plc | $2.4M | 215K | ▲+48% Added · +70K sh | Q1 2026 | |
| 14 | Gotham Asset Management, LLC | $2.2M | 199K | ▲+22% Added · +36K sh | Q1 2026 | |
| 15 | Universal- Beteiligungs- und Servicegesellschaft mbH | $2.1M | 192K | ▼−37% Reduced · −111K sh | Q1 2026 | |
| 16 | Elo Mutual Pension Insurance Co | $1.7M | 156K | ▲+130% Added · +88K sh | Q1 2026 | |
| 17 | Engineers Gate Manager LP | $1.7M | 154K | ▲+85% Added · +71K sh | Q1 2026 | |
| 18 | Sanctuary Advisors, LLC | $1.6M | 149K | ▲15× Added · +139K sh | Q1 2026 | |
| 19 | PICTON MAHONEY ASSET MANAGEMENT | $1.6M | 142K | ▲+242% Added · +100K sh | Q1 2026 | |
| 20 | INTECH INVESTMENT MANAGEMENT LLC | $1.3M | 115K | ▲+100% Added · +58K sh | Q1 2026 | |
| 21 | Caption Management, LLC | $986K | 90K | ▲+613% Added · +77K sh | Q1 2026 | |
| 22 | AlphaCore Capital LLC | $839K | 77K | ▲+159% Added · +47K sh | Q1 2026 | |
| 23 | Illinois Municipal Retirement Fund | $791K | 72K | ▲+4.1% Added · +3K sh | Q1 2026 | |
| 24 | Y-Intercept (Hong Kong) Ltd | $772K | 70K | ▲New +70K sh | Q1 2026 | |
| 25 | Freestone Grove Partners LP | $727K | 66K | ▲New +66K 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 |
|---|---|---|---|---|---|
| Jun 4, 2026 | HARVEY KEVIN | Director | Grant (A) | 6K | $0 |
| Jun 4, 2026 | BRAMLEY CLAIRE | Director | Grant (A) | 45K | $0 |
| Jun 4, 2026 | LAYTON THOMAS | Director | Grant (A) | 6K | $0 |
| Jun 4, 2026 | HARVEY KEVIN | Director | Grant (A) | 21K | $0 |
| Jun 4, 2026 | LAYTON THOMAS | Director | Grant (A) | 21K | $0 |
| Jun 4, 2026 | LISSY DAVID H | Director | Grant (A) | 21K | $0 |
| Jun 4, 2026 | Steele Gary | Director | Grant (A) | 6K | $0 |
| Jun 4, 2026 | EVAN DANA L | Director | Grant (A) | 21K | $0 |
| Jun 4, 2026 | Steele Gary | Director | Grant (A) | 21K | $0 |
| Jun 4, 2026 | LISSY DAVID H | Director | Grant (A) | 45K | $0 |
| Jun 4, 2026 | LAYTON THOMAS | Director | Grant (A) | 7K | $0 |
| Jun 4, 2026 | KELMAN GLENN | Director | Grant (A) | 6K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 95 funds | $43.4B |
| META PLATFORMS INC-CLASS AMETA | 92 funds | $19.7B |
| AMAZON.COM INCAMZN | 91 funds | $32.2B |
| ALPHABET INC-CL CGOOG | 91 funds | $17.9B |
| ELI LILLY & COLLY | 91 funds | $11.5B |
| VISA INC-CLASS A SHARESV | 91 funds | $9.7B |
| APPLE INCAAPL | 90 funds | $45.4B |
| BROADCOM INCAVGO | 90 funds | $21.2B |
| NVIDIA CORPNVDA | 89 funds | $54.3B |
| ALPHABET INC-CL AGOOGL | 89 funds | $28.9B |
| TESLA INCTSLA | 89 funds | $11.0B |
| COSTCO WHOLESALE CORPCOST | 89 funds | $6.8B |
Ranked by how many of UPWK'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 UPWK. 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.