PRLB
Proto Labs, Inc. · Industrials · Manufacturing - Miscellaneous
Momentum inputs (comparable managers):
holder breadth -14.3% ·
share flow -6.7% ·
net new positions -16.7%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 99 | -1 | 14.61M | $1.19B | +4 | −5 |
| Q1 2026 | 103 | +16 | 13.93M | $794.05M | +17 | −1 |
| Q4 2025 | 87 | 0 | 14.72M | $745.02M | +1 | −1 |
| Q3 2025 | 18 | 0 | 10.50M | $525.51M | — | — |
| Q2 2025 | 15 | 0 | 10.12M | $405.31M | +1 | −1 |
| Q1 2025 | 12 | -2 | 4.14M | $145.11M | — | −2 |
| Q4 2024 | 14 | +1 | 3.70M | $144.79M | +1 | — |
| Q3 2024 | 12 | -2 | 2.43M | $71.29M | — | −2 |
| Q2 2024 | 14 | — | 2.60M | $80.36M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 585.81K | +0.7% | $17.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 585.81K | +0.7% | $17.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | Renaissance Technologies ✦ | 556.85K | +27.8% | $16.35M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | D. E. Shaw & Co. ✦ | 523.65K | -8.6% | $15.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | Wellington Management ✦ | 387.74K | +6.5% | $11.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | Wellington Management ✦ | 387.74K | +6.5% | $11.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | Wellington Management ✦ | 387.74K | +6.5% | $11.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | ARK Investment Management ✦ | 123.76K | -6.9% | $3.63M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | AQR Capital Management ✦ | 50.81K | +43.2% | $1.49M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | AQR Capital Management ✦ | 50.81K | +43.2% | $1.49M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 50.81K | +43.2% | $1.49M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | Arrowstreet Capital ✦ | 47.52K | -41.9% | $1.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | Millennium Management ✦ | 43.62K | -9.6% | $1.28M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | Two Sigma Investments ✦ | 34.00K | -56.7% | $998,580 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | Citadel Advisors ✦ | 29.52K | +9.3% | $867,032 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | T. Rowe Price ✦ | 29.03K | +3.5% | $853,000 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | Gotham Asset Management ✦ | 14.99K | +6.4% | $440,374 | 0.0% | ▲ Add | 2 | 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
| Norges Bank | $4.88M | was 0.0% |
| Marshall Wace | $1.32M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 259 holders, 21.98M shares, $1.24B 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.