PDFS
PDF Solutions, Inc. · Technology · Software - Application
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +0.3% · 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 | 91 | +23 | 19.98M | $1.41B | +25 | −3 |
| Q1 2026 | 72 | 0 | 15.57M | $509.11M | +5 | −5 |
| Q4 2025 | 72 | -1 | 16.81M | $479.65M | — | −1 |
| Q3 2025 | 16 | -1 | 11.09M | $286.43M | +1 | −2 |
| Q2 2025 | 14 | 0 | 10.71M | $229.05M | — | — |
| Q1 2025 | 11 | +1 | 2.47M | $47.13M | +2 | −1 |
| Q4 2024 | 10 | +1 | 2.24M | $60.66M | +1 | — |
| Q3 2024 | 8 | 0 | 977.78K | $30.98M | +1 | −1 |
| Q2 2024 | 8 | — | 999.80K | $36.38M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 4.80M | — | $102.57M | 0.0% | n/c | 1 | SEC ↗ ×15 |
| 2 | The Vanguard Group ✦ (passive) | 3.18M | — | $68.07M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 3 | State Street Global Advisors ✦ (passive) | 1.14M | -1.0% | $24.32M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 784.70K | +6.0% | $16.78M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 5 | Fidelity (FMR) ✦ | 230.67K | — | $4.93M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 6 | D. E. Shaw & Co. ✦ | 172.86K | -3.3% | $3.70M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 7 | Citadel Advisors ✦ | 102.08K | +91.1% | $2.18M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 8 | Renaissance Technologies ✦ | 69.30K | +31.2% | $1.48M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | AQR Capital Management ✦ | 54.92K | +98.0% | $1.17M | 0.0% | ▲ Add | 5 | SEC ↗ ×5 |
| 10 | Marshall Wace ✦ | 48.71K | -45.5% | $1.04M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | Fisher Asset Management ✦ | 43.68K | -7.7% | $933,857 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 12 | Arrowstreet Capital ✦ | 40.05K | 0.0% | $856,205 | 0.0% | Held | 2 | SEC ↗ |
| 13 | Millennium Management ✦ | 31.78K | -57.0% | $679,414 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 14 | T. Rowe Price ✦ | 15.96K | +16.4% | $342,000 | 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): 207 holders, 32.20M shares, $1.04B 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)
Officer · 3.39K sh · $150,728
Director · 1.50K sh · $77,256
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology