VICR
Vicor Corporation · Technology · Hardware, Equipment & Parts
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +0.9% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 128 | +13 | 16.24M | $6.11B | +22 | −9 |
| Q1 2026 | 118 | +18 | 15.68M | $2.48B | +19 | −1 |
| Q4 2025 | 99 | +1 | 16.79M | $1.84B | +2 | −1 |
| Q3 2025 | 18 | +3 | 17.37M | $863.84M | +3 | −1 |
| Q2 2025 | 13 | 0 | 8.08M | $366.47M | — | — |
| Q1 2025 | 10 | -1 | 1.91M | $89.36M | — | −1 |
| Q4 2024 | 11 | +1 | 1.82M | $88.05M | +1 | — |
| Q3 2024 | 9 | -1 | 1.26M | $53.12M | — | −1 |
| Q2 2024 | 10 | — | 1.47M | $48.82M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 3.42M | — | $155.30M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | The Vanguard Group ✦ (passive) | 2.52M | — | $114.49M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 2.52M | — | $114.49M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 2.52M | — | $114.49M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 2.52M | — | $114.49M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 2.52M | — | $114.49M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | State Street Global Advisors ✦ (passive) | 848.35K | -1.5% | $38.48M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 21 | Geode Capital Management ✦ (passive) | 570.08K | -0.1% | $25.86M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 22 | Geode Capital Management ✦ (passive) | 570.08K | -0.1% | $25.86M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 23 | Millennium Management ✦ | 219.88K | -16.9% | $9.97M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 24 | Citadel Advisors ✦ | 166.59K | +152.8% | $7.56M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 25 | Citadel Advisors ✦ | 166.59K | +152.8% | $7.56M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 26 | Fidelity (FMR) ✦ | 148.72K | — | $6.75M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Fidelity (FMR) ✦ | 148.72K | — | $6.75M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | AQR Capital Management ✦ | 78.19K | +90.9% | $3.55M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 29 | AQR Capital Management ✦ | 78.19K | +90.9% | $3.55M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 30 | AQR Capital Management ✦ | 78.19K | +90.9% | $3.55M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 31 | AQR Capital Management ✦ | 78.19K | +90.9% | $3.55M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 32 | AQR Capital Management ✦ | 78.19K | +90.9% | $3.55M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 33 | D. E. Shaw & Co. ✦ | 28.41K | +67.7% | $1.29M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 34 | T. Rowe Price ✦ | 25.73K | +6.3% | $1.17M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 35 | Norges Bank ✦ (passive) | 22.08K | -36.3% | $1.00M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 36 | Arrowstreet Capital ✦ | 13.25K | -40.5% | $601,111 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 37 | Two Sigma Investments ✦ | 9.85K | +15.1% | $446,887 | 0.0% | ▲ Add | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 365 holders, 18.97M shares, $2.67B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
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)
Director · 908 sh · $227,000
Director · 2.07K sh · $523,640
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology