Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
367 institutional managers reported holding TSEM for the quarter ended Mar 31, 2026. Together they hold about 60% of shares outstanding; the top 10 hold 30%. 121 opened new positions; 64 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| T. Rowe Price | 7.36M | 6.47% | $1.29B | added +57.1% | 2025 Q3 |
| Vanguard Group | 4.38M | 3.86% | $769.5M | added +0.5% | 2015 Q1 |
| BlackRock | 4.27M | 3.76% | $749.4M | added +9.3% | 2014 Q3 |
| Clal Insurance Enterprises Holdings LTD | 3.97M | 3.50% | $697.4M | trimmed -17.6% | 2017 Q3 |
| Phoenix Financial LTD. | 3.39M | 2.98% | $595.2M | trimmed -11.5% | 2019 Q3 |
| Senvest Management, LLC (focused) | 2.27M | 2.00% | $398.8M | trimmed -42.8% | 2014 Q1 |
| Invesco | 2.18M | 1.92% | $382.9M | added +66.5% | 2016 Q3 |
| Migdal Insurance & Financial Holdings LTD. | 2.02M | 1.77% | $353.8M | trimmed -32.9% | 2016 Q2 |
| Harel Insurance Investments & Financial Services LTD. | 1.99M | 1.75% | $349.3M | trimmed -14.2% | 2017 Q4 |
| Meitav Investment House LTD | 1.78M | 1.56% | $312.0M | trimmed -5.6% | 2020 Q2 |
| WT Asset Management LTD (focused) | 1.47M | 1.29% | $257.6M | added +118.2% | 2025 Q4 |
| Capital Group (American Funds) | 1.33M | 1.17% | $232.9M | opened | 2026 Q1 |
| Jane Street | 1.19M | 1.05% | $209.0M | added +35.7% | 2015 Q3 |
| GF Fund Management CO. LTD. | 1.14M | 1.01% | $200.9M | added +271.1% | 2025 Q3 |
| Whale Rock Capital (focused) | 1.07M | 0.94% | $187.3M | opened | 2026 Q1 |
| Janus Henderson | 994.5k | 0.88% | $174.6M | trimmed -7.5% | 2023 Q4 |
| Mawer Investment Management LTD. | 965.0k | 0.85% | $169.4M | opened | 2026 Q1 |
| Wellington Management | 958.9k | 0.84% | $168.3M | trimmed -29% | 2016 Q4 |
| Y.d. More Investments LTD | 930.7k | 0.82% | $163.4M | trimmed -7.8% | 2023 Q3 |
| Turiya Advisors Asia LTD (focused) | 766.4k | 0.68% | $134.5M | trimmed -47.9% | 2025 Q4 |
| Summit Partners Public Asset Management, LLC | 692.1k | 0.61% | $121.5M | trimmed -28.1% | 2024 Q2 |
| Bank OF America CORP /DE/ | 684.3k | 0.60% | $120.1M | trimmed -26% | ≤2013 |
| Morgan Stanley | 667.6k | 0.59% | $117.2M | added +4% | ≤2013 |
| Jennison Associates LLC | 615.2k | 0.54% | $108.0M | trimmed -56% | 2019 Q3 |
| E20 Capital LTD (focused) | 613.8k | 0.54% | $107.7M | opened | 2026 Q1 |
| UBS | 584.1k | 0.51% | $102.5M | added +58.4% | ≤2013 |
| Millennium Management | 578.4k | 0.51% | $101.5M | trimmed -27.6% | 2020 Q3 |
| Capital International Investors | 572.3k | 0.50% | $100.5M | trimmed -69.8% | 2025 Q4 |
| Systematic Financial Management LP | 548.9k | 0.48% | $96.3M | trimmed -15.7% | 2019 Q3 |
| Legal & General Group PLC | 535.8k | 0.47% | $94.1M | added +57.4% | 2017 Q2 |
| Menora Mivtachim Holdings LTD. | 523.0k | 0.46% | $91.8M | unchanged | 2015 Q3 |
| Shannon River Fund Management LLC (focused) | 504.2k | 0.44% | $88.5M | trimmed -16.4% | 2023 Q4 |
| SG Americas Securities, LLC | 486.9k | 0.43% | $85.5M | opened | 2025 Q2 |
| Gilder Gagnon Howe & CO LLC | 471.5k | 0.41% | $82.8M | unchanged | 2025 Q3 |
| Analog Century Management LP (focused) | 463.0k | 0.41% | $81.3M | trimmed -42.9% | 2023 Q4 |
| Bridgewater Associates | 462.7k | 0.41% | $81.2M | opened | 2026 Q1 |
| Mivtachim The Workers Social Insurance Fund LTD. (Under Special Management) (focused) | 448.0k | 0.39% | $78.6M | unchanged | 2017 Q2 |
| Marshall Wace | 424.0k | 0.37% | $74.4M | trimmed -31.4% | 2021 Q3 |
| Swiss National Bank | 414.9k | 0.36% | $72.8M | added +86% | 2014 Q4 |
| Goldman Sachs | 408.0k | 0.36% | $71.6M | trimmed -81.5% | 2014 Q1 |
| Neuberger Berman Group LLC | 401.1k | 0.35% | $70.4M | added +46.8% | 2024 Q3 |
| E Fund Management CO., LTD. | 347.8k | 0.31% | $61.0M | opened | 2026 Q1 |
| CPP Investment Board | 343.3k | 0.30% | $60.3M | unchanged | 2021 Q3 |
| Altshuler Shaham LTD | 340.1k | 0.30% | $59.7M | added +1176.4% | 2022 Q4 |
| Penserra Capital Management LLC | 336.9k | 0.30% | $59.1M | added +6.7% | 2018 Q2 |
| Defiance ETFs, LLC | 332.6k | 0.29% | $58.4M | added +5.3% | 2025 Q4 |
| Driehaus Capital Management LLC | 326.1k | 0.29% | $57.2M | opened | 2026 Q1 |
| Citigroup INC | 312.3k | 0.28% | $54.8M | added +160.2% | 2014 Q1 |
| Schonfeld Strategic Advisors | 303.8k | 0.27% | $53.3M | added +14.5% | 2022 Q1 |
| Renaissance Technologies | 274.7k | 0.24% | $48.2M | added +9.7% | 2016 Q1 |
Largest 50 of 367 shown; the full ranked, searchable register is at boothcheck.com/holders/TSEM. 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.