Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
245 institutional managers reported holding IMAX for the quarter ended Mar 31, 2026. Together they hold about 84% of shares outstanding; the top 10 hold 43%. 48 opened new positions; 39 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Orbis Allan Gray LTD | 5.15M | 9.14% | $196.0M | unchanged | 2024 Q2 |
| Nomura Asset Management International INC. | 3.95M | 7.00% | $150.2M | trimmed -12.4% | 2025 Q4 |
| FMR (Fidelity) | 3.12M | 5.53% | $118.6M | trimmed -9.3% | 2020 Q3 |
| BlackRock | 2.62M | 4.65% | $99.8M | trimmed -1% | ≤2013 |
| Westfield Capital Management CO LP | 2.34M | 4.15% | $89.0M | unchanged | 2025 Q3 |
| Driehaus Capital Management LLC | 1.65M | 2.93% | $62.8M | added +61.3% | 2025 Q1 |
| Congress Asset Management CO | 1.51M | 2.68% | $57.5M | opened | 2026 Q1 |
| Ameriprise Financial INC | 1.33M | 2.36% | $50.5M | added +23.3% | 2023 Q4 |
| Royce & Associates | 1.25M | 2.21% | $47.4M | trimmed -1.4% | 2020 Q4 |
| Dimensional Fund Advisors | 1.24M | 2.19% | $47.1M | added +1.9% | ≤2013 |
| Victory Capital Management INC | 1.09M | 1.94% | $41.5M | trimmed -1.2% | 2023 Q1 |
| T. Rowe Price | 954.8k | 1.69% | $36.3M | added +82.1% | 2023 Q3 |
| State Street | 898.5k | 1.59% | $34.2M | unchanged | 2015 Q4 |
| Goldman Sachs | 869.1k | 1.54% | $33.1M | added +60.2% | ≤2013 |
| Emerald Advisers, LLC | 849.1k | 1.51% | $32.3M | trimmed -0.5% | 2025 Q3 |
| American Century Companies INC | 725.6k | 1.29% | $27.6M | added +46.4% | 2023 Q1 |
| Two Sigma | 691.5k | 1.23% | $26.3M | added +9.4% | 2024 Q4 |
| Nuveen | 661.5k | 1.17% | $25.2M | added +30.4% | 2019 Q2 |
| Oberweis Asset Management INC/ | 577.1k | 1.02% | $22.0M | trimmed -11.5% | 2024 Q1 |
| PRIMECAP Management | 535.4k | 0.95% | $20.4M | trimmed -4.3% | 2016 Q1 |
| Marshall Wace | 528.4k | 0.94% | $20.1M | trimmed -26.1% | 2023 Q1 |
| Wellington Management | 527.1k | 0.94% | $20.0M | trimmed -37.2% | 2025 Q2 |
| Emerald Mutual Fund Advisers Trust | 526.0k | 0.93% | $20.0M | unchanged | 2025 Q3 |
| Geode Capital | 517.8k | 0.92% | $19.7M | added +2.1% | 2015 Q2 |
| Nantahala Capital Management, LLC | 515.6k | 0.91% | $19.6M | added +8.1% | 2020 Q4 |
| Pembroke Management, LTD | 487.9k | 0.86% | $18.6M | trimmed -5.2% | 2023 Q4 |
| Bank OF America CORP /DE/ | 424.1k | 0.75% | $16.1M | trimmed -13.7% | ≤2013 |
| Squarepoint Ops LLC | 390.0k | 0.69% | $14.8M | added +119.8% | 2019 Q4 |
| Axiom Investors LLC /DE | 387.7k | 0.69% | $14.7M | opened | 2026 Q1 |
| Marsico Capital Management LLC | 387.4k | 0.69% | $14.7M | trimmed -21.1% | 2025 Q4 |
| Wells Fargo & COMPANY/MN | 385.8k | 0.68% | $14.7M | added +8.6% | ≤2013 |
| Invesco | 367.7k | 0.65% | $14.0M | added +1163.7% | 2015 Q1 |
| Qube Research & Technologies LTD | 335.2k | 0.59% | $12.8M | added +187.9% | 2025 Q4 |
| Renaissance Group LLC | 322.0k | 0.57% | $12.2M | added +730% | 2024 Q3 |
| Northern Trust | 301.6k | 0.54% | $11.5M | added +2.9% | ≤2013 |
| Nishkama Capital, LLC (focused) | 296.8k | 0.53% | $11.3M | added +84.2% | 2024 Q1 |
| Manatuck Hill Partners, LLC | 289.2k | 0.51% | $11.0M | unchanged | 2024 Q2 |
| Janus Henderson | 261.1k | 0.46% | $9.9M | added +10% | 2023 Q1 |
| D. E. Shaw | 256.8k | 0.46% | $9.8M | added +3.8% | 2022 Q2 |
| Lord, Abbett & CO. LLC | 251.3k | 0.45% | $9.6M | added +40.9% | 2024 Q3 |
| HRT Financial LP | 250.5k | 0.44% | $9.5M | trimmed -2.5% | 2024 Q4 |
| Pier Capital, LLC | 239.9k | 0.42% | $9.1M | trimmed -1.9% | 2024 Q3 |
| Barclays PLC | 231.3k | 0.41% | $8.8M | trimmed -19.8% | ≤2013 |
| Millennium Management | 205.3k | 0.36% | $7.8M | added +2063.3% | 2019 Q4 |
| BNY Mellon | 202.3k | 0.36% | $7.7M | trimmed -4.6% | 2013 Q4 |
| Morgan Stanley | 199.4k | 0.35% | $7.6M | trimmed -39.7% | ≤2013 |
| Principal Financial Group INC | 192.1k | 0.34% | $7.3M | added +76.3% | 2023 Q4 |
| Raymond James Financial INC | 188.8k | 0.34% | $7.2M | trimmed -3.2% | 2024 Q4 |
| SEI Investments CO | 185.0k | 0.33% | $7.0M | added +37.8% | 2021 Q4 |
| Prospect Capital Advisors, LLC (focused) | 172.4k | 0.31% | $6.6M | trimmed -31% | 2024 Q3 |
Largest 50 of 245 shown; the full ranked, searchable register is at boothcheck.com/holders/IMAX. 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.