Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in DIOD held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 7.3M | $803.9M | +2.0% | 15.988% | 0.01% |
| 2 | FMR LLC | 4.4M | $479.4M | -23.0% | 9.534% | 0.02% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.7M | $409.6M | +2.8% | 8.145% | 0.02% |
| 4 | STATE STREET CORP | 2.6M | $285.1M | +14.2% | 5.670% | 0.00% |
| 5 | DIMENSIONAL FUND ADVISORS LP | 2.2M | $240.8M | -9.7% | 4.790% | 0.04% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 2.0M | $218.3M | +0.6% | 4.341% | 0.00% |
| 7 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.7M | $184.2M | +281.1% | 3.662% | 0.55% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.6M | $180.4M | +14.7% | 3.587% | 0.01% |
| 9 | MORGAN STANLEY | 1.0M | $114.4M | -37.2% | 2.276% | 0.01% |
| 10 | EARNEST PARTNERS LLC | 965K | $105.6M | -3.7% | 2.099% | 0.38% |
| 11 | Invesco Ltd. | 889K | $97.3M | +7.3% | 1.935% | 0.01% |
| 12 | AMERICAN CENTURY COMPANIES INC | 807K | $88.3M | +578.3% | 1.756% | 0.04% |
| 13 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 729K | $79.8M | -5.6% | 1.586% | 0.01% |
| 14 | Global Alpha Capital Management Ltd. | 579K | $63.4M | -30.9% | 1.260% | 3.80% |
| 15 | NORTHERN TRUST CORP | 575K | $62.9M | +6.0% | 1.250% | 0.01% |
| 16 | VICTORY CAPITAL MANAGEMENT INC | 508K | $55.6M | -35.9% | 1.105% | 0.03% |
| 17 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 481K | $52.6M | -17.4% | 1.046% | 0.08% |
| 18 | FULLER & THALER ASSET MANAGEMENT, INC. | 444K | $48.6M | +3.6% | 0.966% | 0.13% |
| 19 | OBERWEIS ASSET MANAGEMENT INC/ | 414K | $45.3M | +84.5% | 0.901% | 0.94% |
| 20 | Bank of New York Mellon Corp | 378K | $41.4M | +33.2% | 0.824% | 0.01% |
| 21 | PANAGORA ASSET MANAGEMENT INC | 358K | $39.2M | +111.5% | 0.780% | 0.12% |
| 22 | Boston Partners | 358K | $38.6M | +4.3% | 0.778% | 0.03% |
| 23 | Artemis Investment Management LLP | 351K | $38.5M | — | 0.765% | 0.34% |
| 24 | EMERALD ADVISERS, LLC | 345K | $37.8M | +90.8% | 0.752% | 0.89% |
| 25 | GOLDMAN SACHS GROUP INC | 339K | $37.1M | -63.6% | 0.738% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in DIOD — a direct measure of their conviction.
Filings activity in DIOD during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 402 | +18% | 100.28% | +1.21 pp | $4.84B | +59% |
| Q1 2026 | 340 | +13% | 99.07% | 17.45 pp | $3.04B | +42% |
| Q4 2025 | 302 | +4.5% | 116.52% | 5.39 pp | $2.13B | 12% |
| Q3 2025 | 289 | 0.7% | 121.91% | +3.62 pp | $2.42B | +3.2% |
| Q2 2025 | 291 | +8.2% | 118.29% | 2.45 pp | $2.34B | +20% |
| Q1 2025 | 269 | +0.0% | 120.74% | +16.35 pp | $1.95B | 31% |
| Q4 2024 | 269 | 6.6% | 104.39% | 17.37 pp | $2.84B | +2.0% |
| Q3 2024 | 288 | — | 121.76% | — | $2.79B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying DIOD stock.
Based on Q2 2026 13F filings, institutional ownership of Diodes Incorporated stands at 100.3%, held across 402 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of DIOD, with approximately 7,345,758 shares worth $0.80B as of Q2 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of DIOD.
Our composite Smart Money Score for DIOD is 58 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
90 institutions opened new positions in DIOD during Q2 2026, while 32 fully exited. 273 added to existing positions and 28 trimmed.
DIOD institutional ownership rose by 1.21 percentage points quarter-over-quarter, with a net change of +62 holders.
The top 10 institutions account for 62.4% of all reported 13F value in DIOD, and the top 25 account for 79.5%.
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.
Diodes Incorporated (DIOD) Institutional Ownership