Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
674 institutional managers reported holding ROKU for the quarter ended Mar 31, 2026. Together they hold about 75% of shares outstanding; the top 10 hold 37%. 105 opened new positions; 126 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| FMR (Fidelity) | 17.01M | 11.26% | $1.61B | added +24.4% | 2017 Q3 |
| Vanguard Group | 13.37M | 8.85% | $1.26B | added +2.8% | 2017 Q3 |
| BlackRock | 7.43M | 4.92% | $702.5M | added +7% | 2017 Q3 |
| ARK Investment Management | 3.82M | 2.53% | $361.4M | trimmed -35% | 2019 Q2 |
| Geode Capital | 2.78M | 1.84% | $263.1M | added +12.9% | 2017 Q4 |
| Acadian Asset Management | 2.52M | 1.67% | $238.5M | added +16.1% | 2020 Q3 |
| Schroder Investment Management Group | 2.31M | 1.53% | $218.3M | opened | 2026 Q1 |
| State Street | 2.26M | 1.50% | $214.1M | added +2.1% | 2017 Q4 |
| Arrowstreet Capital | 2.04M | 1.35% | $192.8M | added +229.5% | 2025 Q3 |
| Sumitomo Mitsui Trust Group, INC. | 1.87M | 1.24% | $177.3M | trimmed -36.9% | 2019 Q3 |
| Amova Asset Management Americas, INC. | 1.85M | 1.22% | $174.9M | trimmed -37.1% | 2019 Q3 |
| AQR Capital | 1.78M | 1.18% | $168.6M | trimmed -37.7% | 2018 Q4 |
| Squarepoint Ops LLC | 1.78M | 1.18% | $168.2M | added +35% | 2018 Q2 |
| Morgan Stanley | 1.73M | 1.15% | $163.7M | added +39% | 2017 Q3 |
| Fred Alger Management, LLC | 1.59M | 1.05% | $150.5M | added +11.9% | 2025 Q3 |
| Renaissance Technologies | 1.57M | 1.04% | $148.1M | added +22.8% | 2023 Q4 |
| Jacobs Levy Equity Management, INC | 1.47M | 0.97% | $139.3M | trimmed -2.5% | 2023 Q1 |
| BNP Paribas Financial Markets | 1.40M | 0.93% | $132.7M | added +73% | 2018 Q1 |
| Qube Research & Technologies LTD | 1.33M | 0.88% | $126.2M | added +5.1% | 2022 Q1 |
| Citadel Advisors | 1.28M | 0.85% | $121.2M | added +114.6% | 2017 Q3 |
| Two Sigma | 1.19M | 0.79% | $112.4M | trimmed -35.4% | 2021 Q1 |
| Westfield Capital Management CO LP | 1.18M | 0.78% | $111.5M | added +5.9% | 2024 Q2 |
| Assenagon Asset Management S.a. | 1.16M | 0.77% | $109.9M | added +24.7% | 2021 Q3 |
| Bank OF America CORP /DE/ | 1.08M | 0.72% | $102.4M | added +5.5% | 2017 Q3 |
| Marshall Wace | 998.6k | 0.66% | $94.5M | added +88.4% | 2024 Q3 |
| Tremblant Capital Group | 961.2k | 0.64% | $90.9M | trimmed -2.9% | 2024 Q4 |
| Charles Schwab Investment Management | 955.9k | 0.63% | $90.4M | added +5.8% | 2017 Q4 |
| Goldman Sachs | 954.5k | 0.63% | $90.3M | added +106.7% | 2017 Q3 |
| Janus Henderson | 834.6k | 0.55% | $79.0M | added +1320.4% | 2019 Q1 |
| UBS | 794.8k | 0.53% | $75.2M | unchanged | 2017 Q3 |
| Robeco Institutional Asset Management B.v. | 759.0k | 0.50% | $71.8M | added +76% | 2020 Q4 |
| Dimensional Fund Advisors | 750.6k | 0.50% | $71.0M | added +3.1% | 2018 Q3 |
| Duquesne Family Office | 750.2k | 0.50% | $71.0M | added +28.7% | 2025 Q1 |
| Amundi | 747.9k | 0.49% | $70.8M | added +170.3% | 2019 Q3 |
| Holocene Advisors | 743.5k | 0.49% | $70.3M | trimmed -1.1% | 2024 Q3 |
| Jane Street | 717.5k | 0.47% | $67.9M | trimmed -38.5% | 2017 Q3 |
| Northern Trust | 686.7k | 0.46% | $65.0M | added +3.9% | 2017 Q4 |
| Susquehanna International Group | 686.0k | 0.45% | $64.9M | added +19% | 2018 Q1 |
| Man Group | 654.2k | 0.43% | $61.9M | added +124.7% | 2018 Q3 |
| Woodline Partners LP | 624.1k | 0.41% | $59.0M | added +35.1% | 2024 Q4 |
| T. Rowe Price | 623.3k | 0.41% | $59.0M | trimmed -38.9% | 2017 Q3 |
| Quantinno Capital Management LP | 585.4k | 0.39% | $55.4M | added +41.1% | 2022 Q3 |
| Russell Investments Group, LTD. | 579.1k | 0.38% | $54.8M | added +16.8% | 2018 Q3 |
| Nuveen | 571.3k | 0.38% | $54.0M | added +11% | 2019 Q2 |
| Northwestern Mutual Wealth Management CO | 501.9k | 0.33% | $47.5M | added +686.6% | 2019 Q1 |
| Alua Capital Management LP (focused) | 474.2k | 0.31% | $44.9M | opened | 2026 Q1 |
| Ossiam | 461.1k | 0.30% | $43.6M | unchanged | 2025 Q2 |
| Ameriprise Financial INC | 444.0k | 0.29% | $42.0M | trimmed -1.1% | 2017 Q3 |
| Federated Hermes, INC. | 436.4k | 0.29% | $41.3M | added +193.3% | 2025 Q3 |
| CPP Investment Board | 415.1k | 0.28% | $39.3M | added +23.1% | 2018 Q4 |
Largest 50 of 674 shown; the full ranked, searchable register is at boothcheck.com/holders/ROKU. 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.