Security record · archived quarter
UMC
United Microelectronics Corporation · Technology · Semiconductors
75Tracked holders
+2Δ holders
121.29MShares held
$945.85MReported value
+2New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +2.7% ·
share flow +2.1% ·
net new positions +2.7%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | +1 | 8.89K | $202,823 | +1 | −2 |
| Q2 2026 | 85 | -1 | 146.16M | $3.97B | +11 | −14 |
| Q1 2026 | 89 | +13 | 142.48M | $1.27B | +18 | −5 |
| Q4 2025 | 75 | +2 | 121.29M | $945.85M | +2 | n/a |
| Q3 2025 | 12 | -1 | 78.28M | $593.39M | +1 | −2 |
| Q2 2025 | 10 | 0 | 46.93M | $360.60M | +1 | −1 |
| Q1 2025 | 7 | -3 | 18.53M | $132.51M | n/a | −3 |
| Q4 2024 | 10 | +3 | 38.45M | $249.57M | +3 | n/a |
| Q3 2024 | 6 | 0 | 23.91M | $201.36M | +1 | −1 |
| Q2 2024 | 6 | n/a | 19.00M | $166.45M | n/a | n/a |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 26.98M | +11.8% | $212.09M | 0.0% | ▲ Add | 3 | SEC ↗ ×9 |
| 2 | The Vanguard Group ✦ (passive) | 13.52M | -5.1% | $106.30M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 3 | AQR Capital Management ✦ | 9.46M | +873.9% | $74.39M | 0.0% | ▲ Add | 6 | SEC ↗ ×3 |
| 4 | Morgan Stanley ✦ | 7.67M | -64.9% | $60.28M | 0.0% | ▼ Trim | 2 | SEC ↗ ×8 |
| 5 | Two Sigma Investments ✦ | 5.68M | +60.8% | $44.61M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 6 | Bank Of America Corp /De/ | 5.60M | n/a | $44.05M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 7 | Barclays Plc | 5.51M | n/a | $43.32M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 8 | State Street Global Advisors ✦ (passive) | 4.83M | +6.6% | $37.95M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | Marshall Wace ✦ | 4.74M | +69.2% | $37.25M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 10 | Goldman Sachs Group ✦ | 4.73M | +7.1% | $37.15M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 11 | UBS Group AG | 4.57M | n/a | $35.92M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 12 | Northern Trust Corp | 3.22M | n/a | $25.29M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 13 | Citigroup Inc | 3.01M | n/a | $23.65M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 14 | Dimensional Fund Advisors Lp | 2.52M | n/a | $19.78M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 15 | Creative Planning | 2.16M | n/a | $16.98M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 16 | Man Group plc | 2.12M | n/a | $16.69M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | Balyasny Asset Management L.P. | 1.98M | n/a | $15.57M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | Bnp Paribas Financial Markets | 1.47M | n/a | $11.59M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | Citadel Advisors ✦ | 1.12M | +2124.6% | $8.84M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 20 | D. E. Shaw & Co. ✦ | 870.26K | New | $6.84M | 0.0% | New | 1 | SEC ↗ |
| 21 | Rhumbline Advisers | 729.33K | n/a | $5.73M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Millennium Management ✦ | 695.40K | +123.0% | $5.47M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 23 | Quantinno Capital Management LP | 602.55K | n/a | $4.74M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Us Bancorp \De\ | 579.53K | n/a | $4.56M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 25 | Susquehanna International Group, Llp | 470.07K | n/a | $3.69M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Jane Street Group, Llc | 459.15K | n/a | $3.61M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 27 | First Trust Advisors Lp | 433.65K | n/a | $3.41M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | Baird Financial Group, Inc. | 409.70K | n/a | $3.22M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | BNP Paribas Asset Management… | 309.66K | n/a | $2.43M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | Storebrand Asset Management As | 307.35K | n/a | $2.42M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | Corient Private Wealth LP | 293.93K | n/a | $2.31M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 32 | Qube Research & Technologies Ltd | 263.12K | n/a | $2.07M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Mackenzie Financial Corp | 252.15K | n/a | $2.00M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Robeco Institutional Asset… | 244.77K | n/a | $1.92M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Cerity Partners LLC | 241.62K | n/a | $1.90M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 36 | Pacer Advisors, Inc. | 1.19M | n/a | $1.87M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Fidelity (FMR) ✦ | 213.69K | -0.8% | $1.68M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 38 | Mariner, LLC | 173.10K | n/a | $1.36M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 39 | Mirae Asset Global Investments Co.… | 168.65K | n/a | $1.33M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Pnc Financial Services Group, Inc. | 166.56K | n/a | $1.31M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 41 | Tidal Investments LLC | 147.03K | n/a | $1.16M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | JPMorgan Chase ✦ | 141.34K | -88.4% | $1.11M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 43 | Arrowstreet Capital ✦ | 128.82K | New | $1.01M | 0.0% | New | 1 | SEC ↗ |
| 44 | Envestnet Asset Management Inc | 100.81K | n/a | $792,406 | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Invesco Ltd. | 89.94K | n/a | $706,889 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 46 | FIL Ltd | 78.85K | n/a | $619,792 | 0.0% | n/c | 1 | SEC ↗ |
| 47 | LPL Financial LLC | 66.94K | n/a | $526,175 | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Neuberger Berman Group LLC | 56.90K | n/a | $447,241 | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Bank Of Montreal /Can/ | 55.96K | n/a | $439,822 | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 50 | Focus Partners Wealth | 42.36K | n/a | $332,972 | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Mercer Global Advisors Inc /Adv | 39.70K | n/a | $312,071 | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Royal Bank Of Canada | 29.09K | n/a | $228,000 | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 53 | Sei Investments Co | 27.80K | n/a | $218,514 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 54 | Ameriprise Financial Inc | 26.58K | n/a | $208,896 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 55 | UBS AM, a distinct business unit of… | 25.89K | n/a | $203,535 | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Cwm, Llc | 24.30K | n/a | $191,000 | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Prudential Financial Inc | 23.57K | n/a | $187,617 | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Franklin Resources Inc | 23.17K | n/a | $182,116 | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Osaic Holdings, Inc. | 21.79K | n/a | $171,270 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 60 | HighTower Advisors, LLC | 20.10K | n/a | $157,994 | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Raymond James Financial Inc | 17.42K | n/a | $136,906 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 62 | Allspring Global Investments… | 17.16K | n/a | $134,519 | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Cetera Investment Advisers | 15.47K | n/a | $121,610 | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Assetmark, Inc | 15.19K | n/a | $119,354 | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Connor, Clark & Lunn Investment… | 14.47K | n/a | $113,711 | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Aviva Plc | 13.81K | n/a | $108,523 | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Lido Advisors, LLC | 12.98K | n/a | $100,247 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 68 | Commonwealth Equity Services, Llc | 11.60K | n/a | $91,170 | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Bank Julius Baer & Co. Ltd, Zurich | 8.11K | n/a | $63,720 | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Jones Financial Companies Lllp | 4.47K | n/a | $35,107 | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Wells Fargo & Company/Mn | 3.27K | n/a | $25,737 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 72 | Parallax Volatility Advisers, L.P. | 2.55K | n/a | $20,043 | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Northwestern Mutual Wealth… | 2.08K | n/a | $16,373 | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Fifth Third Bancorp | 553 | n/a | $4,347 | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Russell Investments Group, Ltd. | 81 | n/a | $637 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| D. E. Shaw & Co. | $6.84M | 0.0% |
| Arrowstreet Capital | $1.01M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 314 holders, 174.09M shares, $1.47B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Sep 22
LIN JEN-TSUNG
Officer · 10.00K sh · $1.63M
Sep 17
Liu Chitung
Officer · 400.00K sh · $58.00M
Sep 16
Liu Chitung
Officer · 1.20M sh · $170.80M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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