TOWER SEMICONDUCTOR LTD TSEM
SHS NEW · Common Stock · CUSIP M87915274
- SectorTechnology
- IndustrySemiconductors & Related Devices
- HeadquartersMigdal HaEmek, Israel
- Founded1993
- Websitetowerjazz.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($6.0m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $259.83. Options: 16 managers hold calls ($806.6m notional), 17 hold puts ($873.1m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 205 |
| Q4 2022 | 223 |
| Q1 2023 | 213 |
| Q2 2023 | 221 |
| Q3 2023 | 200 |
| Q4 2023 | 185 |
| Q1 2024 | 190 |
| Q2 2024 | 191 |
| Q3 2024 | 215 |
| Q4 2024 | 241 |
| Q1 2025 | 218 |
| Q2 2025 | 216 |
| Q3 2025 | 248 |
| Q4 2025 | 311 |
| Q1 2026 | 381 |
| Q2 2026 | 452 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 104 | 90 |
| Q4 2024 | 108 | 105 |
| Q1 2025 | 112 | 120 |
| Q2 2025 | 92 | 113 |
| Q3 2025 | 128 | 116 |
| Q4 2025 | 165 | 143 |
| Q1 2026 | 210 | 181 |
| Q2 2026 | 234 | 218 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $108.2m | $61.4m | 0.57 |
| Q4 2025 | $311.4m | $216.7m | 0.70 |
| Q1 2026 | $623.5m | $713.7m | 1.14 |
| Q2 2026 | $806.6m | $873.1m | 1.08 |
Biggest buyers
| JANE STREET GROUP, LLC | Added | +1.7m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | +928.2k |
| FMR LLC | Added | +919.2k |
| Polar Capital Holdings Plc | Added | +869.7k |
| Clal Insurance Enterprises Holdings Ltd | Added | +686.2k |
| D. E. Shaw & Co., Inc. | Added | +658.9k |
| TWO SIGMA INVESTMENTS, LP | Added | +602.3k |
| AXIOM INVESTORS LLC /DE | New | +523.9k |
| Qube Research & Technologies Ltd | Added | +455.6k |
| MARSHALL WACE, LLP | Added | +354.2k |
Biggest sellers
| MEITAV INVESTMENT HOUSE LTD | Sold out | -1.8m |
| WT Asset Management Ltd | Sold out | -1.5m |
| Whale Rock Capital Management LLC | Sold out | -1.1m |
| BlackRock, Inc. | Reduced | -979.2k |
| GF FUND MANAGEMENT CO. LTD. | Reduced | -918.5k |
| Invesco Ltd. | Reduced | -844.3k |
| E20 Capital Ltd | Sold out | -613.8k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -586.5k |
| MORGAN STANLEY | Reduced | -489.2k |
| SG Americas Securities, LLC | Reduced | -486.1k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $338.6m1.3m shares |
| JANE STREET GROUP, LLC | Reduced | $216.5m830.5k shares |
| CITADEL ADVISORS LLC | Reduced | $143.6m550.9k shares |
| Walleye Trading LLC | Added | $28.5m109.2k shares |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | New | $27.1m104.0k shares |
| D. E. Shaw & Co., Inc. | Added | $18.3m70.2k shares |
| Value Aligned Research Advisors, LLC | Unchanged | $10.2m39.2k shares |
| Point72 Asset Management, L.P. | Reduced | $7.6m29.1k shares |
| TUDOR INVESTMENT CORP ET AL | Reduced | $4.1m15.9k shares |
| PEAK6 LLC | Reduced | $3.0m11.7k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $280.4m1.1m shares |
| JANE STREET GROUP, LLC | Added | $148.3m569.0k shares |
| NOMURA HOLDINGS INC | Unchanged | $126.0m483.4k shares |
| IMC-Chicago, LLC | Reduced | $99.0m379.9k shares |
| CITADEL ADVISORS LLC | Reduced | $96.2m369.0k shares |
| GROUP ONE TRADING LLC | Added | $43.4m166.7k shares |
| Walleye Trading LLC | Reduced | $24.6m94.2k shares |
| SIMPLEX TRADING, LLC | Added | $14.9m57.2k shares |
| Clal Insurance Enterprises Holdings Ltd | New | $12.6m5.0k shares |
| HRT FINANCIAL LP | Added | $8.3m31.8k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution new · filed 2026-10-27 | 6.8% |
| PRICE T ROWE ASSOCIATES INC /MD/ 13G · institution new · filed 2026-05-15 | 6.6% |
| MENORA MIVTACHIM HOLDINGS LTD. 13G · passive investor -1.5 pts · filed 2026-02-10 | 6.2% |
| Migdal Insurance & Financial Holdings Ltd. 13G · passive investor -0.5 pts · filed 2026-07-23 | 6.0% |
| Harel Insurance Investments & Financial Services Ltd. 13G · passive investor +0.2 pts · filed 2026-06-15 | 5.1% |
| Phoenix Financial Ltd. 13G · passive investor new · filed 2026-06-09 | 5.0% |
Fell to 5% or below in the last year: Senvest Management, LLC (3.6%, 2026-02-12), Point72 Asset Management, L.P. (2.6%, 2025-11-14), Clal Insurance Enterprises Holdings Ltd (4.8%, 2025-11-12)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 2 | $60.0m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-10 | Chelouche Yoav Director | Sold | $49.9k232 shares |
| 2026-08-11 | Ellwanger Russell Craig Chief Executive Officer | Sold | $25.9m104.2k shares |
| 2026-08-10 | Ellwanger Russell Craig Chief Executive Officer | Sold | $19.7m77.3k shares |
| 2026-07-13 | Ellwanger Russell Craig Chief Executive Officer | Sold | $14.4m67.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ 0.18% of their portfolio | 7.0m $1.8bn | Reduced -332.2k |
| Clal Insurance Enterprises Holdings Ltd 5.42% of their portfolio | 4.7m $1.2bn | Added +686.2k |
| Phoenix Financial Ltd. 6.24% of their portfolio | 3.5m $913.7m | Added +115.1k |
| BlackRock, Inc. 0.01% of their portfolio | 3.3m $857.5m | Reduced -979.2k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 3.1m $814.9m | Added +63.5k |
| JANE STREET GROUP, LLC 0.49% of their portfolio | 2.9m $763.3m | Added +1.7m |
| Harel Insurance Investments & Financial Services Ltd. 2.89% of their portfolio | 2.3m $594.1m | Added +289.4k |
| Senvest Management, LLC 13.94% of their portfolio | 1.8m $475.2m | Reduced -449.0k |
| Migdal Insurance & Financial Holdings Ltd. 2.89% of their portfolio | 1.7m $451.1m | Reduced -284.8k |
| Jupiter Topco LLC 0.16% of their portfolio | 1.5m $381.8m | First filing |
| Capital World Investors 0.04% of their portfolio | 1.4m $353.3m | Added +28.7k |
| Invesco Ltd. 0.03% of their portfolio | 1.3m $348.4m | Reduced -844.3k |
| Mawer Investment Management Ltd. 1.84% of their portfolio | 1.0m $270.6m | Added +73.1k |
| Polar Capital Holdings Plc 0.75% of their portfolio | 1.0m $264.6m | Added +869.7k |
| VANGUARD FIDUCIARY TRUST CO 0.06% of their portfolio | 1.0m $259.1m | Added +18.2k |
| Y.D. More Investments Ltd 7.59% of their portfolio | 949.5k $243.8m | Added +18.9k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.11% of their portfolio | 928.2k $241.1m | New |
| FMR LLC 0.01% of their portfolio | 920.2k $239.7m | Added +919.2k |
| MILLENNIUM MANAGEMENT LLC 0.15% of their portfolio | 850.4k $221.7m | Added +272.0k |
| MARSHALL WACE, LLP 0.17% of their portfolio | 778.2k $202.8m | Added +354.2k |
| NORGES BANK 0.02% of their portfolio | 763.6k $198.3m | Not comparable |
| GOLDMAN SACHS GROUP INC 0.02% of their portfolio | 722.1k $188.2m | Added +314.2k |
| D. E. Shaw & Co., Inc. 0.11% of their portfolio | 687.8k $179.3m | Added +658.9k |
| Qube Research & Technologies Ltd 0.18% of their portfolio | 638.1k $166.3m | Added +455.6k |
| TWO SIGMA INVESTMENTS, LP 0.12% of their portfolio | 611.9k $159.5m | Added +602.3k |
| Capital International Investors 0.03% of their portfolio | 572.3k $149.2m | Unchanged |
| AXIOM INVESTORS LLC /DE 1.18% of their portfolio | 523.9k $136.5m | New |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 3.50% of their portfolio | 517.5k $134.9m | Reduced -174.5k |
| Legal & General Group Plc 0.03% of their portfolio | 514.2k $131.9m | Reduced -21.5k |
| GILDER GAGNON HOWE & CO LLC 1.25% of their portfolio | 464.0k $120.9m | Reduced -7.4k |
| Turiya Advisors Asia Ltd 26.71% of their portfolio | 450.5k $117.4m | Reduced -315.8k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 450.4k $115.1m | Reduced -90.5k |
| MENORA MIVTACHIM HOLDINGS LTD. 0.46% of their portfolio | 448.0k $116.8m | Reduced -75.0k |
| NEUBERGER BERMAN GROUP LLC 0.08% of their portfolio | 434.3k $113.2m | Added +33.2k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 412.2k $107.4m | Reduced -272.1k |
| Swiss National Bank 0.05% of their portfolio | 401.0k $103.0m | Reduced -13.8k |
| Shannon River Fund Management LLC 8.91% of their portfolio | 382.9k $99.8m | Reduced -121.3k |
| WELLINGTON MANAGEMENT GROUP LLP 0.02% of their portfolio | 372.4k $96.9m | Reduced -586.5k |
| Analog Century Management LP 3.43% of their portfolio | 359.8k $93.8m | Reduced -103.3k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.05% of their portfolio | 358.6k $92.0m | Added +15.3k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 1.69% of their portfolio | 325.2k $84.7m | Reduced -223.7k |
| DEUTSCHE BANK AG\ 0.02% of their portfolio | 310.7k $81.0m | Added +129.2k |
| Penserra Capital Management LLC 0.57% of their portfolio | 284.8k $74.2m | Reduced -52.1k |
| Defiance ETFs, LLC 0.97% of their portfolio | 284.8k $69.9m | Reduced -47.8k |
| Pictet Asset Management Holding SA 0.07% of their portfolio | 270.1k $70.2m | Added +223.7k |
| Nuveen, LLC 0.02% of their portfolio | 266.6k $68.4m | Added +9.4k |
| JENNISON ASSOCIATES LLC 0.04% of their portfolio | 249.7k $65.1m | Reduced -365.5k |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 249.2k $65.0m | Added +109.6k |
| Assenagon Asset Management S.A. 0.04% of their portfolio | 236.8k $60.8m | Added +123.4k |
| GF FUND MANAGEMENT CO. LTD. 0.71% of their portfolio | 225.9k $58.9m | Reduced -918.5k |
| Driehaus Capital Management LLC 0.34% of their portfolio | 225.1k $58.7m | Reduced -101.0k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.04% of their portfolio | 220.1k $57.0m | Added +25.6k |
| RENAISSANCE TECHNOLOGIES LLC 0.08% of their portfolio | 211.0k $55.0m | Reduced -63.7k |
| Mivtachim The Workers Social Insurance Fund Ltd. (Under Special Management) 7.11% of their portfolio | 207.0k $54.0m | Reduced -241.0k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 194.8k $50.8m | Added +33.3k |
| TD Asset Management Inc 0.04% of their portfolio | 192.7k $50.0m | Reduced -8.2k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.04% of their portfolio | 191.7k $50.0m | Added +158.5k |
| Think Investments LP 6.13% of their portfolio | 190.9k $49.8m | Added +5.5k |
| UBS Group AG 0.01% of their portfolio | 189.3k $49.3m | Reduced -394.6k |
| Allspring Global Investments Holdings, LLC 0.07% of their portfolio | 180.4k $44.3m | Reduced -1.2k |
| MORGAN STANLEY 0.00% of their portfolio | 178.4k $46.5m | Reduced -489.2k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.18% of their portfolio | 165.2k $43.1m | Reduced -35.5k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 145.8k $37.9m | Reduced -15.7k |
| CITIGROUP INC 0.02% of their portfolio | 143.8k $36.9m | Reduced -168.5k |
| Altshuler Shaham Ltd 0.46% of their portfolio | 142.9k $36.7m | Reduced -197.2k |
| NEUMEIER POMA INVESTMENT COUNSEL LLC 2.52% of their portfolio | 141.2k $36.8m | Reduced -98.2k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 140.6k $36.7m | New |
| Alta Park Capital, LP 3.17% of their portfolio | 131.2k $34.2m | Reduced -20.4k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 126.7k $22.2m | Reduced -143.8k |
| Trexquant Investment LP 0.20% of their portfolio | 122.1k $31.8m | New |
| Amundi 0.01% of their portfolio | 119.1k $31.0m | Added +12.7k |
| CAPITAL FUND MANAGEMENT S.A. 0.21% of their portfolio | 113.4k $29.6m | New |
| SCHWARTZ INVESTMENT COUNSEL INC 0.95% of their portfolio | 110.0k $28.7m | Reduced -150.0k |
| SPHERA FUNDS MANAGEMENT LTD. 4.04% of their portfolio | 108.3k $28.2m | Reduced -37.5k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 108.1k $28.2m | Added +104.7k |
| Andar Capital Management HK Ltd 12.63% of their portfolio | 108.0k $28.1m | Reduced -22.0k |
| ROYCE & ASSOCIATES LP 0.22% of their portfolio | 106.7k $27.8m | Reduced -4.0k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 3.60% of their portfolio | 105.5k $27.5m | Reduced -10.4k |
| HERALD INVESTMENT MANAGEMENT Ltd 3.50% of their portfolio | 99.0k $25.8m | Reduced -67.0k |
| Walleye Capital LLC 0.12% of their portfolio | 96.3k $25.1m | Added +52.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 93.4k $24.4m | Added +300 |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 92.2k $24.0m | Reduced -38.4k |
| BARCLAYS PLC 0.01% of their portfolio | 85.1k $22.2m | Added +24.6k |
| CREDIT AGRICOLE S A 0.06% of their portfolio | 84.2k $21.9m | Reduced -59.4k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 81.0k $21.1m | Reduced -62.1k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 75.7k $19.7m | Added +71.9k |
| GENDELL JEFFREY L 0.18% of their portfolio | 75.0k $19.5m | Unchanged |
| Calamos Advisors LLC 0.07% of their portfolio | 74.7k $19.5m | Reduced -58.9k |
| HRT FINANCIAL LP 0.04% of their portfolio | 69.9k $18.2m | Added +43.9k |
| Benchstone Capital Management LP 2.17% of their portfolio | 67.0k $17.5m | New |
| Swedbank AB 0.01% of their portfolio | 62.1k $16.2m | Reduced -18.4k |
| Public Sector Pension Investment Board 0.04% of their portfolio | 61.7k $15.8m | Added +3.9k |
| KP Management LLC 3.33% of their portfolio | 61.0k $15.9m | Unchanged |
| SG Capital Management LLC 1.44% of their portfolio | 61.0k $15.9m | New |
| EAGLE GLOBAL ADVISORS LLC 0.52% of their portfolio | 60.3k $15.7m | Unchanged |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 58.6k $15.3m | Added +13.1k |
| Vanguard Investments Australia, Ltd. 0.04% of their portfolio | 57.1k $14.8m | Added +1.8k |
| Munro Partners 0.33% of their portfolio | 56.5k $14.7m | New |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 55.0k $11.5m | Reduced -136.4k |
| LMR Partners LLP 0.10% of their portfolio | 49.8k $13.0m | Reduced -194.5k |