Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
422 institutional managers reported holding SMTC for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 61%. 80 opened new positions; 53 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 14.22M | 16.22% | $1.09B | added +7.8% | ≤2013 |
| Vanguard Group | 11.87M | 13.54% | $912.8M | unchanged | ≤2013 |
| Ameriprise Financial INC | 7.45M | 8.50% | $573.0M | trimmed -1.3% | ≤2013 |
| Capital Research Global Investors | 4.15M | 4.74% | $319.3M | trimmed -7.8% | ≤2013 |
| State Street | 4.06M | 4.63% | $312.2M | added +5.5% | ≤2013 |
| Geode Capital | 2.53M | 2.88% | $194.3M | added +20.4% | ≤2013 |
| Wellington Management | 2.38M | 2.72% | $183.4M | added +1.9% | 2023 Q1 |
| AllianceBernstein | 2.37M | 2.70% | $182.0M | trimmed -20.2% | ≤2013 |
| Hood River Capital Management LLC | 2.29M | 2.61% | $175.9M | added +2.3% | 2024 Q3 |
| Nomura Asset Management International INC. | 2.22M | 2.54% | $171.0M | trimmed -9.6% | 2025 Q2 |
| Disciplined Growth Investors INC /MN | 2.21M | 2.52% | $169.7M | trimmed -21.2% | 2022 Q2 |
| Millennium Management | 1.97M | 2.24% | $151.2M | added +88.7% | ≤2013 |
| Artisan Partners | 1.56M | 1.78% | $119.8M | added +215.6% | 2025 Q3 |
| Morgan Stanley | 1.42M | 1.61% | $108.9M | added +1.9% | ≤2013 |
| Westfield Capital Management CO LP | 1.28M | 1.46% | $98.5M | trimmed -47.7% | 2025 Q1 |
| Bank OF America CORP /DE/ | 1.14M | 1.30% | $87.9M | added +13.4% | ≤2013 |
| Neuberger Berman Group LLC | 1.12M | 1.28% | $86.4M | added +20.6% | 2023 Q3 |
| Citadel Advisors | 1.11M | 1.26% | $85.0M | trimmed -33.8% | ≤2013 |
| UBS | 1.06M | 1.21% | $81.6M | added +30.8% | ≤2013 |
| Charles Schwab Investment Management | 996.7k | 1.14% | $76.7M | added +1.3% | ≤2013 |
| Northern Trust | 993.4k | 1.13% | $76.4M | added +7.8% | ≤2013 |
| Goldman Sachs | 900.9k | 1.03% | $69.3M | added +15.8% | ≤2013 |
| Marshall Wace | 869.1k | 0.99% | $66.8M | added +5083.5% | 2023 Q1 |
| Dorsal Capital Management, LP (focused) | 800.0k | 0.91% | $61.5M | opened | 2026 Q1 |
| Assenagon Asset Management S.a. | 781.0k | 0.89% | $60.1M | added +323% | 2024 Q2 |
| Jane Street | 772.8k | 0.88% | $59.4M | added +323.9% | 2019 Q3 |
| Invesco | 771.5k | 0.88% | $59.3M | trimmed -38.3% | ≤2013 |
| Nuveen | 771.1k | 0.88% | $59.3M | trimmed -25.7% | 2019 Q2 |
| Jennison Associates LLC | 744.4k | 0.85% | $57.3M | added +15.6% | 2025 Q3 |
| Schroder Investment Management Group | 731.2k | 0.83% | $56.2M | trimmed -12% | 2024 Q4 |
| Driehaus Capital Management LLC | 628.5k | 0.72% | $48.3M | trimmed -32.5% | 2025 Q3 |
| DigitalBridge Group, INC. | 561.1k | 0.64% | $43.2M | opened | 2026 Q1 |
| Atreides Management, LP | 541.8k | 0.62% | $41.7M | trimmed -21.7% | 2025 Q2 |
| Capital International Investors | 537.3k | 0.61% | $41.3M | unchanged | 2025 Q4 |
| Citigroup INC | 510.4k | 0.58% | $39.3M | added +1824% | ≤2013 |
| BNY Mellon | 505.5k | 0.58% | $38.9M | added +2% | ≤2013 |
| Palisade Capital Management, LP | 481.0k | 0.55% | $37.0M | trimmed -18.2% | ≤2013 |
| Squarepoint Ops LLC | 478.6k | 0.55% | $36.8M | added +318.2% | 2023 Q3 |
| Gw&k Investment Management, LLC | 477.5k | 0.55% | $36.7M | added +15.7% | 2025 Q3 |
| Principal Financial Group INC | 457.7k | 0.52% | $35.2M | added +8.6% | ≤2013 |
| Emerald Advisers, LLC | 457.0k | 0.52% | $35.1M | trimmed -2.9% | 2025 Q3 |
| Lord, Abbett & CO. LLC | 438.9k | 0.50% | $33.8M | added +55.2% | 2025 Q4 |
| Cramer Rosenthal Mcglynn LLC | 414.5k | 0.47% | $31.9M | opened | 2026 Q1 |
| Schonfeld Strategic Advisors | 387.3k | 0.44% | $29.8M | unchanged | 2021 Q2 |
| Park West Asset Management LLC (focused) | 385.0k | 0.44% | $29.6M | opened | 2026 Q1 |
| Clearline Capital LP | 383.2k | 0.44% | $29.5M | added +34% | 2023 Q1 |
| Granahan Investment Management, LLC | 370.6k | 0.42% | $28.5M | trimmed -11.4% | 2024 Q1 |
| Dimensional Fund Advisors | 370.1k | 0.42% | $28.5M | unchanged | ≤2013 |
| SEI Investments CO | 357.9k | 0.41% | $27.5M | added +65.9% | ≤2013 |
| Franklin Resources | 352.9k | 0.40% | $27.1M | added +1902.7% | 2024 Q4 |
Largest 50 of 422 shown; the full ranked, searchable register is at boothcheck.com/holders/SMTC. 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.