Tower Semiconductor Ltd.
DE ˙ DB ˙ IL0010823792
218,00 € ↓ -14,00 (-6,03%)
2026-06-04
AKTIENPREIS
SecurityDE:TOW / Tower Semiconductor Ltd.
InstitutionIMC-Chicago, LLC
Latest Disclosed Ownership18,458 shares
Latest Disclosed Value $ 3,239,010
IMC-Chicago, LLC ownership in TOW / Tower Semiconductor Ltd.

On May 5, 2026 - IMC-Chicago, LLC filed a 13F-HR form disclosing ownership of 18,458 shares of Tower Semiconductor Ltd. (DE:TOW) valued at $2,621,036 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 0 shares of Tower Semiconductor Ltd.. The current value of the position is $4,023,844 USD.

IMC-Chicago, LLC has a history of taking positions in derivatives of the underlying security (TOW) in the form of stock options. The firm currently holds call options representing 494,900 of underlying shares valued at $86,845,052 USD and put options representing 782,100 of underlying shares valued at $137,242,908 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:TOW / Tower Semiconductor Ltd. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-05 2026-03-31 13F TOWER SEMICONDUCTOR SHS NEW M87915274 18,458 18,458 3,239 0.0011
2026-01-29 2025-12-31 13F TOWER SEMICONDUCTOR SHS NEW M87915274 0 -48,534 -100.00 0 -100.00
2025-11-04 2025-09-30 13F TOWER SEMICONDUCTOR SHS NEW M87915274 48,534 48,534 3,509 0.0013
2025-07-22 2025-06-30 13F TOWER SEMICONDUCTOR SHS NEW M87915274 0 -14,168 -100.00 0 -100.00
2025-04-14 2025-03-31 13F TOWER SEMICONDUCTOR SHS NEW M87915274 14,168 14,168 505 0.0003
2024-07-15 2024-06-30 13F TOWER SEMICONDUCTOR SHS NEW M87915274 0 -44,191 -100.00 0 -100.00
2024-04-12 2024-03-31 13F TOWER SEMICONDUCTOR SHS NEW M87915274 44,191 44,191 1,478 0.0009
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-05 2026-03-31 13F TOWER SEMICONDUCTOR SHS NEW Call 494,900 74.81 86,845 161.26 n/a n/a n/a
2026-01-29 2025-12-31 13F TOWER SEMICONDUCTOR SHS NEW Call 283,100 93.24 33,242 213.86 n/a n/a n/a
2025-11-04 2025-09-30 13F TOWER SEMICONDUCTOR SHS NEW Call 146,500 8.28 10,592 80.58 n/a n/a n/a
2025-07-22 2025-06-30 13F TOWER SEMICONDUCTOR SHS NEW Call 135,300 -14.69 5,865 3.71 n/a n/a n/a
2025-04-14 2025-03-31 13F TOWER SEMICONDUCTOR SHS NEW Call 158,600 -7.95 5,656 -36.28 n/a n/a n/a
2025-01-27 2024-12-31 13F TOWER SEMICONDUCTOR SHS NEW Call 172,300 5.38 8,875 22.65 n/a n/a n/a
2024-10-25 2024-09-30 13F TOWER SEMICONDUCTOR SHS NEW Call 163,500 -28.42 7,237 -19.40 n/a n/a n/a
2024-07-15 2024-06-30 13F TOWER SEMICONDUCTOR SHS NEW Call 228,400 17.79 8,978 38.44 n/a n/a n/a
2024-04-12 2024-03-31 13F TOWER SEMICONDUCTOR SHS NEW Call 193,900 -3.29 6,486 5.98 n/a n/a n/a
2024-02-09 2023-12-31 13F TOWER SEMICONDUCTOR SHS NEW Call 200,500 6,119 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-05 2026-03-31 13F TOWER SEMICONDUCTOR SHS NEW Put 782,100 493.40 137,243 786.86 n/a n/a n/a
2026-01-29 2025-12-31 13F TOWER SEMICONDUCTOR SHS NEW Put 131,800 165.73 15,476 331.54 n/a n/a n/a
2025-11-04 2025-09-30 13F TOWER SEMICONDUCTOR SHS NEW Put 49,600 52.62 3,586 154.69 n/a n/a n/a
2025-07-22 2025-06-30 13F TOWER SEMICONDUCTOR SHS NEW Put 32,500 -25.29 1,409 -9.22 n/a n/a n/a
2025-04-14 2025-03-31 13F TOWER SEMICONDUCTOR SHS NEW Put 43,500 -58.81 1,551 -71.48 n/a n/a n/a
2025-01-27 2024-12-31 13F TOWER SEMICONDUCTOR SHS NEW Put 105,600 -5.12 5,439 10.41 n/a n/a n/a
2024-10-25 2024-09-30 13F TOWER SEMICONDUCTOR SHS NEW Put 111,300 -18.88 4,926 -8.66 n/a n/a n/a
2024-07-15 2024-06-30 13F TOWER SEMICONDUCTOR SHS NEW Put 137,200 43.51 5,393 68.69 n/a n/a n/a
2024-04-12 2024-03-31 13F TOWER SEMICONDUCTOR SHS NEW Put 95,600 33.89 3,198 46.72 n/a n/a n/a
2024-02-09 2023-12-31 13F TOWER SEMICONDUCTOR SHS NEW Put 71,400 2,179 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.