Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
341 institutional managers reported holding VSEC for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 61%. 104 opened new positions; 28 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 4.51M | 16.19% | $831.9M | added +123.2% | ≤2013 |
| T. Rowe Price Investment Management, INC. | 2.51M | 9.02% | $463.6M | added +674.3% | 2023 Q3 |
| Vanguard Group | 2.36M | 8.49% | $436.0M | added +79.5% | ≤2013 |
| State Street | 1.88M | 6.74% | $346.1M | added +103.1% | ≤2013 |
| Durable Capital Partners LP (focused) | 1.40M | 5.05% | $259.3M | added +59.8% | 2024 Q2 |
| T. Rowe Price | 1.05M | 3.77% | $193.6M | added +55% | 2023 Q1 |
| UBS | 1.01M | 3.63% | $186.4M | added +87.9% | 2016 Q3 |
| Capital Research Global Investors | 936.4k | 3.36% | $172.9M | trimmed -28% | 2024 Q1 |
| Geode Capital | 746.9k | 2.68% | $137.9M | added +30.8% | ≤2013 |
| Capital Group (American Funds) | 684.8k | 2.46% | $126.4M | added +8.5% | 2025 Q2 |
| Neuberger Berman Group LLC | 670.9k | 2.41% | $123.8M | trimmed -5.5% | 2024 Q4 |
| Invesco | 635.9k | 2.29% | $117.4M | added +24.7% | ≤2013 |
| Artisan Partners | 564.9k | 2.03% | $104.3M | added +1.7% | 2024 Q4 |
| Fuller & Thaler Asset Management, INC. | 549.9k | 1.98% | $101.5M | added +6.2% | 2025 Q2 |
| Citadel Advisors | 541.2k | 1.94% | $99.9M | added +274.6% | 2024 Q4 |
| AltraVue Capital, LLC (focused) | 524.8k | 1.89% | $96.9M | trimmed -18.1% | 2024 Q2 |
| Driehaus Capital Management LLC | 509.1k | 1.83% | $94.0M | trimmed -2.1% | 2024 Q4 |
| Jennison Associates LLC | 484.8k | 1.74% | $89.5M | trimmed -33% | 2023 Q3 |
| Dendur Capital LP (focused) | 479.0k | 1.72% | $88.4M | added +90.1% | 2025 Q4 |
| Samlyn Capital, LLC | 475.5k | 1.71% | $87.8M | added +211.2% | 2025 Q4 |
| FMR (Fidelity) | 461.1k | 1.66% | $85.1M | trimmed -30% | ≤2013 |
| Ameriprise Financial INC | 451.2k | 1.62% | $83.3M | trimmed -40.9% | 2023 Q2 |
| Dimensional Fund Advisors | 430.0k | 1.54% | $79.4M | trimmed -17.3% | ≤2013 |
| Goldman Sachs | 398.6k | 1.43% | $73.6M | added +28.4% | 2019 Q4 |
| Franklin Resources | 397.1k | 1.43% | $73.3M | trimmed -7.8% | 2023 Q2 |
| Morgan Stanley | 377.9k | 1.36% | $69.8M | added +87.2% | ≤2013 |
| Allianz Asset Management GmbH | 359.9k | 1.29% | $66.4M | opened | 2026 Q1 |
| Emerald Advisers, LLC | 314.8k | 1.13% | $58.1M | added +12.6% | 2025 Q1 |
| Hood River Capital Management LLC | 305.3k | 1.10% | $56.4M | added +304.1% | 2025 Q4 |
| Charles Schwab Investment Management | 298.7k | 1.07% | $55.1M | added +33.1% | ≤2013 |
| Northern Trust | 287.1k | 1.03% | $53.0M | added +26.4% | ≤2013 |
| Stephens Investment Management Group LLC | 273.7k | 0.98% | $50.5M | added +57.4% | 2024 Q1 |
| NEW York State Common Retirement Fund | 272.5k | 0.98% | $50.3M | trimmed -0.9% | 2015 Q2 |
| Voya Investment Management LLC | 264.6k | 0.95% | $48.9M | added +43.4% | 2022 Q4 |
| Fred Alger Management, LLC | 264.3k | 0.95% | $48.8M | trimmed -28.3% | 2024 Q4 |
| Loomis Sayles & CO L P | 242.4k | 0.87% | $44.7M | trimmed -4.6% | 2021 Q2 |
| Emerald Mutual Fund Advisers Trust | 195.9k | 0.70% | $36.2M | added +16.4% | 2025 Q1 |
| FIL LTD | 195.4k | 0.70% | $36.1M | trimmed -17% | 2018 Q2 |
| BNY Mellon | 178.4k | 0.64% | $32.9M | added +80.3% | ≤2013 |
| Lord, Abbett & CO. LLC | 169.7k | 0.61% | $31.3M | added +135.9% | 2024 Q2 |
| Zimmer Partners, LP | 160.5k | 0.58% | $29.6M | opened | 2026 Q1 |
| Soros Fund Management | 157.2k | 0.56% | $29.0M | added +2276.1% | 2025 Q4 |
| Bank OF America CORP /DE/ | 155.2k | 0.56% | $28.7M | added +19.5% | ≤2013 |
| Ghisallo Capital Management LLC | 150.0k | 0.54% | $27.7M | added +328.6% | 2024 Q2 |
| Principal Financial Group INC | 141.8k | 0.51% | $26.2M | added +10715.9% | 2023 Q4 |
| Balyasny Asset Management | 141.2k | 0.51% | $26.1M | added +92% | 2025 Q1 |
| Nomura Asset Management International INC. | 132.4k | 0.48% | $24.4M | added +68.1% | 2025 Q3 |
| Marsico Capital Management LLC | 124.0k | 0.45% | $22.9M | added +17.3% | 2025 Q3 |
| Montgomery Investment Management INC | 123.7k | 0.44% | $22.8M | trimmed -10.7% | ≤2013 |
| Royce & Associates | 117.2k | 0.42% | $21.6M | trimmed -6.7% | 2021 Q2 |
Largest 50 of 341 shown; the full ranked, searchable register is at boothcheck.com/holders/VSEC. 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.