Tower Semiconductor (TSEM) Held by Superinvestors
TOWER SEMICONDUCTOR LTD (TSEM) is currently held by 2 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $57.65M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Renaissance Technologies LLC is currently the largest disclosed institutional shareholder of TSEM tracked by InsiderSet, reporting ownership valued at approximately $55.01M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $32.78M, representing an estimated loss of -40.41% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed TSEM value among the investors covered in this analysis. Major shareholders include Renaissance Technologies LLC, ARK Invest, and several other long-term asset managers with concentrated positions in TOWER SEMICONDUCTOR LTD (TSEM).
This page ranks the largest institutional TSEM shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | Jim Simons | 0.08% | 211,049 | $55,007,811 | $32,780,131 | -$22,227,680 | -40.41% |
| ARK Invest | Cathie Wood | 0.02% | 10,126 | $2,639,241 | $1,572,770 | -$1,066,471 | -40.41% |
Frequently asked questions about TSEM
Who are the largest superinvestors holding TSEM?
The largest superinvestors holding TSEM in the latest SEC Form 13F filings include Renaissance Technologies LLC and ARK Invest. InsiderSet ranks these superinvestors by their latest reported TSEM position.
What does the TSEM superinvestors page include?
This page tracks TSEM positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. TOWER SEMICONDUCTOR LTD (TSEM) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold TSEM?
InsiderSet currently tracks 2 superinvestors reporting TSEM holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own TSEM.
How much TSEM stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $57.65M in TSEM holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were TSEM superinvestor holdings last updated?
The latest TSEM superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor TSEM holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its TSEM position after the reporting date.
Are superinvestors buying or selling TSEM?
Buying and selling can be analyzed by comparing TSEM positions across consecutive 13F reporting periods. InsiderSet's TSEM Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View TSEM ownership changes.
How have superinvestor TSEM holdings changed over time?
InsiderSet tracks TSEM holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.