Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
198 institutional managers reported holding PDFS for the quarter ended Mar 31, 2026. Together they hold about 80% of shares outstanding; the top 10 hold 45%. 35 opened new positions; 19 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 4.87M | 12.05% | $158.8M | unchanged | ≤2013 |
| Vanguard Group | 3.06M | 7.58% | $99.9M | trimmed -1.2% | ≤2013 |
| Needham Investment Management LLC | 2.02M | 5.01% | $66.0M | added +2.9% | ≤2013 |
| Ranger Investment Management, L.p. | 1.28M | 3.17% | $41.7M | added +9.4% | 2020 Q1 |
| William Blair Investment Management, LLC | 1.26M | 3.11% | $41.0M | trimmed -7.6% | 2020 Q2 |
| State Street | 1.19M | 2.95% | $38.9M | added +3.5% | ≤2013 |
| Barrow Hanley Mewhinney & Strauss LLC | 1.14M | 2.83% | $37.2M | opened | 2026 Q1 |
| Ophir Asset Management Pty LTD (focused) | 1.14M | 2.82% | $37.1M | added +57.3% | 2025 Q4 |
| Snyder Capital Management L P | 1.06M | 2.63% | $34.6M | added +11% | 2014 Q2 |
| Janus Henderson | 1.04M | 2.56% | $33.8M | added +13.5% | 2023 Q1 |
| Samjo Management, LLC | 920.0k | 2.28% | $30.0M | trimmed -20.1% | 2020 Q4 |
| Emerald Advisers, LLC | 860.8k | 2.13% | $28.1M | trimmed -8.8% | 2022 Q2 |
| Dimensional Fund Advisors | 845.7k | 2.09% | $27.6M | added +5.6% | ≤2013 |
| Loomis Sayles & CO L P | 827.1k | 2.05% | $27.0M | added +77.8% | 2025 Q2 |
| Geode Capital | 802.2k | 1.99% | $26.2M | added +4.2% | ≤2013 |
| Divisar Capital Management LLC (focused) | 623.4k | 1.54% | $20.3M | trimmed -18% | 2016 Q4 |
| Emerald Mutual Fund Advisers Trust | 594.6k | 1.47% | $19.4M | unchanged | 2022 Q2 |
| Wasatch Advisors LP | 507.7k | 1.26% | $16.6M | trimmed -2.8% | 2022 Q1 |
| Silverberg Bernstein Capital Management LLC | 472.9k | 1.17% | $15.4M | unchanged | 2023 Q4 |
| Russell Investments Group, LTD. | 441.7k | 1.09% | $14.4M | added +8.4% | 2016 Q4 |
| ArrowMark Colorado Holdings LLC | 356.6k | 0.88% | $11.6M | trimmed -27.7% | 2025 Q2 |
| DF Dent & CO INC | 353.0k | 0.87% | $11.5M | opened | 2026 Q1 |
| Northern Trust | 352.6k | 0.87% | $11.5M | added +1.3% | ≤2013 |
| Morgan Stanley | 341.8k | 0.85% | $11.2M | trimmed -14.4% | ≤2013 |
| Connor, Clark & Lunn Investment Management LTD. | 328.9k | 0.81% | $10.7M | trimmed -15.3% | 2023 Q2 |
| Charles Schwab Investment Management | 308.2k | 0.76% | $10.1M | unchanged | ≤2013 |
| FMR (Fidelity) | 302.2k | 0.75% | $9.9M | added +13.2% | 2020 Q2 |
| Pillsbury Lake Capital LLC (focused) | 270.7k | 0.67% | $8.8M | trimmed -28% | 2025 Q4 |
| Herald Investment Management LTD | 200.0k | 0.49% | $6.5M | trimmed -11.1% | 2024 Q2 |
| BNY Mellon | 190.5k | 0.47% | $6.2M | trimmed -3.7% | ≤2013 |
| Roubaix Capital, LLC (focused) | 181.9k | 0.45% | $5.9M | trimmed -17.3% | 2025 Q3 |
| UBS | 161.1k | 0.40% | $5.3M | added +33.2% | 2013 Q3 |
| Principal Financial Group INC | 156.5k | 0.39% | $5.1M | added +2.3% | 2017 Q4 |
| Goldman Sachs | 151.0k | 0.37% | $4.9M | trimmed -20.4% | 2013 Q3 |
| Rice Hall James & Associates, LLC | 147.8k | 0.37% | $4.8M | unchanged | 2025 Q2 |
| Invesco | 144.3k | 0.36% | $4.7M | added +6% | 2016 Q4 |
| Squarepoint Ops LLC | 130.9k | 0.32% | $4.3M | trimmed -39.8% | 2022 Q4 |
| Public Sector Pension Investment Board | 114.5k | 0.28% | $3.7M | added +3.4% | 2017 Q4 |
| Nuveen | 112.0k | 0.28% | $3.7M | added +1.2% | 2019 Q2 |
| Gem Investment Advisors, LLC (focused) | 105.5k | 0.26% | $3.4M | unchanged | 2025 Q4 |
| Brown Capital Management LLC | 104.3k | 0.26% | $3.4M | trimmed -16.6% | 2025 Q4 |
| Bridge City Capital, LLC | 100.8k | 0.25% | $3.3M | trimmed -1.5% | 2025 Q1 |
| Inspire Investing, LLC | 100.1k | 0.25% | $3.3M | added +515% | 2023 Q3 |
| Prelude Capital Management, LLC | 90.8k | 0.23% | $3.0M | trimmed -22% | 2025 Q3 |
| SEI Investments CO | 90.4k | 0.22% | $2.9M | added +114.2% | 2025 Q4 |
| Bank OF America CORP /DE/ | 85.8k | 0.21% | $2.8M | added +7.4% | ≤2013 |
| Rhumbline Advisers | 84.5k | 0.21% | $2.8M | added +2.5% | ≤2013 |
| Lisanti Capital Growth, LLC | 81.4k | 0.20% | $2.7M | trimmed -22.9% | 2025 Q4 |
| Legal & General Group PLC | 74.4k | 0.18% | $2.4M | trimmed -8.6% | 2014 Q3 |
| Raymond James Financial INC | 72.4k | 0.18% | $2.4M | added +49% | 2024 Q4 |
Largest 50 of 198 shown; the full ranked, searchable register is at boothcheck.com/holders/PDFS. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.