334 tracked 13F filers disclose a position in UMC as of the latest SEC 13F filings, a combined $2.1B in reported value. 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.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $246.9M | 27.5M | ▲+1.9% Added · +512K sh | Q1 2026 | |
| 2 | AQR CAPITAL MANAGEMENT LLC | $132.1M | 14.7M | ▲+55% Added · +5.2M sh | Q1 2026 | |
| 3 | TWO SIGMA INVESTMENTS, LP | $86.7M | 9.7M | ▲+70% Added · +4.0M sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $80.7M | 9.0M | →First observed position No prior filed position | Q1 2026 | |
| 5 | MORGAN STANLEY | $78.8M | 8.8M | ▲+14% Added · +1.1M sh | Q1 2026 | |
| 6 | UBS Group AG | $73.4M | 8.2M | ▲+79% Added · +3.6M sh | Q1 2026 | |
| 7 | Rafferty Asset Management, LLC | $208.2M | 7.7M | ▲+54% Added · +2.7M sh | Q2 2026 | |
| 8 | GOLDMAN SACHS GROUP INC | $52.8M | 5.9M | ▲+24% Added · +1.1M sh | Q1 2026 | |
| 9 | Man Group plc | $152.2M | 5.6M | ▼−2.4% Reduced · −135K sh | Q2 2026 | |
| 10 | Qube Research & Technologies Ltd | $45.8M | 5.1M | ▲19× Added · +4.8M sh | Q1 2026 | |
| 11 | STATE STREET CORP | $132.7M | 4.9M | ▼−2.7% Reduced · −135K sh | Q2 2026 | |
| 12 | BARCLAYS PLC | $42.6M | 4.7M | ▼−14% Reduced · −773K sh | Q1 2026 | |
| 13 | CITIGROUP INC | $38.6M | 4.3M | ▲+43% Added · +1.3M sh | Q1 2026 | |
| 14 | NORTHERN TRUST CORP | $28.7M | 3.2M | ▼−0.6% Reduced · −19K sh | Q1 2026 | |
| 15 | DIMENSIONAL FUND ADVISORS LP | $25.6M | 2.8M | ▲+13% Added · +333K sh | Q1 2026 | |
| 16 | VANGUARD PORTFOLIO MANAGEMENT LLC | $24.8M | 2.8M | →First observed position No prior filed position | Q1 2026 | |
| 17 | BANK OF AMERICA CORP /DE/ | $23.4M | 2.6M | ▼−54% Reduced · −3.0M sh | Q1 2026 | |
| 18 | JANE STREET GROUP, LLC | $23.1M | 2.6M | ▲+460% Added · +2.1M sh | Q1 2026 | |
| 19 | Creative Planning | $21.2M | 2.4M | ▲+9.4% Added · +204K sh | Q1 2026 | |
| 20 | Tidal Investments LLC | $64.1M | 2.4M | ▲+48% Added · +759K sh | Q2 2026 | |
| 21 | D. E. Shaw & Co., Inc. | $17.0M | 1.9M | ▲+117% Added · +1.0M sh | Q1 2026 | |
| 22 | MILLENNIUM MANAGEMENT LLC | $15.9M | 1.8M | ▲+155% Added · +1.1M sh | Q1 2026 | |
| 23 | BNP PARIBAS FINANCIAL MARKETS | $14.2M | 1.6M | ▲+7.3% Added · +108K sh | Q1 2026 | |
| 24 | MATTHEWS INTERNATIONAL CAPITAL MANAGEMENT LLC | $39.9M | 1.5M | ▲+50% Added · +488K sh | Q2 2026 | |
| 25 | Connor, Clark & Lunn Investment Management Ltd. | $36.5M | 1.3M | ▲+89% Added · +633K sh | Q2 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.
Last quarter, 9 funds opened a new position in UMC and 34 added to an existing one, while 15 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 194 funds | $25.3B |
| ALPHABET INC-CL AGOOGL | 191 funds | $85.7B |
| NVIDIA CORPNVDA | 189 funds | $173.7B |
| MICROSOFT CORPMSFT | 189 funds | $129.8B |
| MICRON TECHNOLOGY INCMU | 189 funds | $27.1B |
| AMAZON.COM INCAMZN | 187 funds | $98.0B |
| TESLA INCTSLA | 187 funds | $36.4B |
| APPLE INCAAPL | 186 funds | $137.8B |
| BROADCOM INCAVGO | 186 funds | $70.7B |
| META PLATFORMS INC-CLASS AMETA | 186 funds | $47.2B |
| ADVANCED MICRO DEVICESAMD | 186 funds | $21.3B |
| ALPHABET INC-CL CGOOG | 183 funds | $54.4B |
Ranked by how many of UMC's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 13, 2026 | Liu Chitung | CFO & SVP | Sell (S) | 1.9M | $294.3M |
| Jun 30, 2026 | HU CHE-JEN | Vice President | Sell (S) | 10K | $1.7M |
Connected entities for UMC
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/UMC/capital-change-brief"
Use Arkolith's capital_change_brief for UMC. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for UMC. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.