Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
230 institutional managers reported holding WERN for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 64%. 44 opened new positions; 30 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 8.84M | 14.76% | $260.1M | trimmed -1.2% | ≤2013 |
| Vanguard Group | 6.62M | 11.05% | $194.8M | added +1.5% | ≤2013 |
| FMR (Fidelity) | 4.81M | 8.03% | $141.5M | added +21.8% | 2018 Q3 |
| Dimensional Fund Advisors | 3.79M | 6.33% | $111.6M | added +4.1% | ≤2013 |
| Deprince Race & Zollo INC | 3.06M | 5.10% | $89.9M | added +11.1% | 2023 Q3 |
| American Century Companies INC | 2.69M | 4.49% | $79.0M | added +10.1% | 2018 Q1 |
| State Street | 2.56M | 4.27% | $75.3M | added +2.7% | ≤2013 |
| Victory Capital Management INC | 2.36M | 3.93% | $69.3M | trimmed -15.7% | 2013 Q3 |
| Wellington Management | 1.95M | 3.26% | $57.4M | trimmed -22.2% | 2024 Q4 |
| First Trust Advisors LP | 1.92M | 3.21% | $56.5M | added +1361% | ≤2013 |
| Nuance Investments, LLC (focused) | 1.52M | 2.54% | $44.7M | trimmed -22% | 2018 Q4 |
| Geode Capital | 1.50M | 2.51% | $44.2M | added +1.5% | ≤2013 |
| Invesco | 1.50M | 2.50% | $44.0M | trimmed -10.4% | ≤2013 |
| Charles Schwab Investment Management | 1.45M | 2.43% | $42.8M | added +4.1% | ≤2013 |
| Allianz Asset Management GmbH | 1.12M | 1.86% | $32.9M | added +37.2% | 2018 Q1 |
| Jacobs Levy Equity Management, INC | 1.11M | 1.85% | $32.6M | added +258.3% | 2024 Q2 |
| Russell Investments Group, LTD. | 863.6k | 1.44% | $25.4M | added +29% | 2016 Q4 |
| Millennium Management | 832.8k | 1.39% | $24.5M | added +88.2% | 2017 Q2 |
| Nomura Asset Management International INC. | 784.0k | 1.31% | $23.1M | trimmed -52.8% | 2025 Q4 |
| Ameriprise Financial INC | 772.8k | 1.29% | $22.7M | added +7.3% | ≤2013 |
| Allspring Global Investments Holdings, LLC | 685.7k | 1.15% | $20.2M | trimmed -57.4% | 2021 Q4 |
| NEW York State Common Retirement Fund | 593.2k | 0.99% | $17.5M | added +105.1% | ≤2013 |
| Northern Trust | 583.5k | 0.97% | $17.2M | trimmed -0.9% | ≤2013 |
| UBS | 563.2k | 0.94% | $16.6M | trimmed -19.1% | ≤2013 |
| Maple Rock Capital Partners INC. (focused) | 553.4k | 0.92% | $16.3M | trimmed -30.3% | 2025 Q4 |
| Morgan Stanley | 548.6k | 0.92% | $16.1M | trimmed -11.7% | ≤2013 |
| Arrowstreet Capital | 510.8k | 0.85% | $15.0M | added +57.6% | 2025 Q1 |
| Bank OF America CORP /DE/ | 490.9k | 0.82% | $14.4M | trimmed -18.1% | ≤2013 |
| Balyasny Asset Management | 445.6k | 0.74% | $13.1M | trimmed -65.6% | 2022 Q2 |
| Penn Capital Management Company, LLC | 443.5k | 0.74% | $13.0M | opened | 2026 Q1 |
| Bridgeway Capital Management, LLC | 421.7k | 0.70% | $12.4M | added +18.4% | 2025 Q1 |
| BNY Mellon | 371.6k | 0.62% | $10.9M | trimmed -5.3% | ≤2013 |
| ExodusPoint | 315.5k | 0.53% | $9.3M | added +789.8% | 2025 Q4 |
| Royce & Associates | 310.0k | 0.52% | $9.1M | added +127.9% | 2025 Q4 |
| Goldman Sachs | 299.0k | 0.50% | $8.8M | trimmed -27.1% | ≤2013 |
| Principal Financial Group INC | 291.2k | 0.49% | $8.6M | added +2.1% | ≤2013 |
| Empowered Funds, LLC | 284.2k | 0.47% | $8.4M | added +30% | 2025 Q1 |
| Two Sigma | 258.4k | 0.43% | $7.6M | trimmed -45.8% | 2021 Q3 |
| AQR Capital | 256.4k | 0.43% | $7.5M | added +457.5% | ≤2013 |
| SEI Investments CO | 223.5k | 0.37% | $6.6M | added +64.7% | 2016 Q2 |
| Pinnacle Associates LTD | 214.3k | 0.36% | $6.3M | trimmed -9.5% | 2018 Q2 |
| Public Sector Pension Investment Board | 214.2k | 0.36% | $6.3M | added +3.3% | 2024 Q2 |
| Kennedy Capital Management LLC | 208.6k | 0.35% | $6.1M | added +2.4% | 2014 Q2 |
| Thrivent Financial for Lutherans | 204.4k | 0.34% | $6.0M | trimmed -0.6% | 2016 Q4 |
| Silvercrest Asset Management Group LLC | 187.0k | 0.31% | $5.5M | trimmed -9.9% | 2022 Q2 |
| Verition Fund Management | 182.5k | 0.30% | $5.4M | unchanged | 2023 Q2 |
| Rhumbline Advisers | 168.8k | 0.28% | $5.0M | trimmed -2.4% | ≤2013 |
| Raymond James Financial INC | 168.2k | 0.28% | $4.9M | added +11.9% | 2019 Q1 |
| Citadel Advisors | 158.2k | 0.26% | $4.7M | added +138.1% | 2025 Q4 |
| Edgestream Partners, L.p. | 151.5k | 0.25% | $4.5M | opened | 2026 Q1 |
Largest 50 of 230 shown; the full ranked, searchable register is at boothcheck.com/holders/WERN. 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.