Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in VICR held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.9M | $464.4M | -19.3% | 6.395% | 0.01% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.2M | $187.1M | β | 2.577% | 0.01% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 1.0M | $166.6M | β | 2.294% | 0.00% |
| 4 | STATE STREET CORP | 812K | $130.7M | -3.0% | 1.800% | 0.00% |
| 5 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 603K | $97.1M | +39.6% | 1.338% | 0.08% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 603K | $97.0M | +7.1% | 1.336% | 0.01% |
| 7 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 536K | $86.3M | +43.4% | 1.189% | 0.05% |
| 8 | NEEDHAM INVESTMENT MANAGEMENT LLC | 522K | $84.0M | -8.4% | 1.157% | 4.29% |
| 9 | DIMENSIONAL FUND ADVISORS LP | 494K | $79.4M | -11.3% | 1.095% | 0.02% |
| 10 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 403K | $64.8M | +114.4% | 0.893% | 0.01% |
| 11 | GOLDMAN SACHS GROUP INC | 390K | $62.8M | +165.2% | 0.864% | 0.01% |
| 12 | MORGAN STANLEY | 307K | $49.4M | -14.3% | 0.680% | 0.00% |
| 13 | AWM Investment Company, Inc. | 288K | $46.4M | -13.5% | 0.639% | 5.14% |
| 14 | NORTHERN TRUST CORP | 273K | $43.9M | +21.8% | 0.605% | 0.01% |
| 15 | Arosa Capital Management LP | 257K | $41.3M | +90.0% | 0.569% | 12.05% |
| 16 | MILLENNIUM MANAGEMENT LLC | 222K | $35.7M | +6857.3% | 0.492% | 0.02% |
| 17 | Herald Investment Management Ltd | 220K | $35.4M | -10.2% | 0.488% | 4.93% |
| 18 | COLRAIN CAPITAL LLC | 202K | $32.5M | -10.9% | 0.447% | 12.55% |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 194K | $31.3M | -12.2% | 0.431% | 0.00% |
| 20 | DRIEHAUS CAPITAL MANAGEMENT LLC | 189K | $30.5M | β | 0.420% | 0.22% |
| 21 | FMR LLC | 165K | $26.6M | -21.8% | 0.367% | 0.00% |
| 22 | FIRST TRUST ADVISORS LP | 164K | $26.4M | +23.5% | 0.364% | 0.02% |
| 23 | VANGUARD FIDUCIARY TRUST CO | 158K | $25.5M | β | 0.351% | 0.01% |
| 24 | PINNACLE ASSOCIATES LTD | 156K | $25.1M | -37.6% | 0.346% | 0.32% |
| 25 | AQR CAPITAL MANAGEMENT LLC | 148K | $23.9M | +81.7% | 0.329% | 0.01% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in VICR β a direct measure of their conviction.
Filings activity in VICR during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new VICR position in Q1 2026
Institutions that fully closed their VICR position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 358 | +24% | 19.63% | +3.57 pp | $2.69B | +22% |
| Q4 2025 | 288 | +35% | 16.06% | +9.00 pp | $2.20B | +127% |
| Q3 2025 | 213 | +4.4% | 7.06% | +0.74 pp | $968M | +12% |
| Q2 2025 | 204 | 3.3% | 6.32% | 0.31 pp | $865M | 4.8% |
| Q1 2025 | 211 | +7.1% | 6.63% | 0.40 pp | $909M | 5.7% |
| Q4 2024 | 197 | +13% | 7.03% | +1.36 pp | $963M | +24% |
| Q3 2024 | 175 | +3.6% | 5.67% | +1.29 pp | $777M | +29% |
| Q2 2024 | 169 | β | 4.38% | β | $600M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying VICR stock.
Based on Q1 2026 13F filings, institutional ownership of Vicor Corporation stands at 19.6%, held across 358 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of VICR, with approximately 2,884,375 shares worth $0.46B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of VICR, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for VICR is 76 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
108 institutions opened new positions in VICR during Q1 2026, while 38 fully exited. 202 added to existing positions and 46 trimmed.
VICR institutional ownership rose by 3.57 percentage points quarter-over-quarter, with a net change of +70 holders.
The top 10 institutions account for 54.2% of all reported 13F value in VICR, and the top 25 account for 74.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Vicor Corporation (VICR) Institutional Ownership