Sandisk Corporation (SNDK) Form 4 Filings

Sandisk Corp (SNDK) Chief Legal Officer and Secty Bernard Shek had 322 shares of common stock withheld on October 20, 2026, to pay a tax obligation incident to the vesting of securities in accordance with Rule 16b-3(e). He directly held 25,266 shares after the transaction. The reported per-share amount for the withheld shares was $1,365.38.

Sandisk Corp (SNDK) Chief Legal Officer and Secty Bernard Shek sold 600 shares of Common Stock on October 1, 2026, at $1,734.94 per share. The sale was made pursuant to a Rule 10b5-1 trading plan adopted on March 4, 2026. Shek directly held 25,588 shares after the transaction.

Sandisk Corp (symbol: SNDK) is the issuer of record for a Form 4 filing submitted to the SEC. Pokorny Michael reported acquisition or exercise transactions in this Form 4 filing.

Sandisk Corp (SNDK) reported that Michael Pokorny, its VP and Chief Accounting Officer, received a grant of 458 restricted stock units of common stock on September 17, 2026. Each unit represents a contingent right to one share, bringing his directly held position to 21,550 shares. No Rule 10b5-1 plan is reported.

Sandisk Corp (symbol: SNDK) is the issuer of record for a Form 4 filing submitted to the SEC. Visoso Luis Felipe reported acquisition or exercise transactions in this Form 4 filing.

Sandisk Corp (SNDK) reported that its Executive Vice President and Chief Financial Officer, Luis Felipe Visoso, received an award of 1,635 restricted stock units on September 17, 2026. Each unit represents a contingent right to receive one share of Sandisk common stock, bringing his directly held shares to 132,611.

Sandisk Corp (SNDK) reported that Chairman & CEO David Goeckeler received a grant of 3,296 restricted stock units on September 17, 2026, each representing a contingent right to one share of common stock.

On the same date, he sold 33,841 shares of common stock in multiple open-market transactions at weighted-average prices in the mid-$1,500s, all effected pursuant to a Rule 10b5-1 trading plan adopted on May 29, 2026.

Sandisk Corp (SNDK) reported that Chief Legal Officer and Secretary Bernard Shek received an award of 1,001 shares of common stock as restricted stock units on September 17, 2026. On September 20, 2026, 118 shares were withheld to pay related tax obligations upon vesting of securities, with no Rule 10b5-1 trading plan reported.

Sandisk Corp (symbol: SNDK) is the issuer of record for a Form 4 filing submitted to the SEC. Ilkbahar Alper reported acquisition or exercise transactions in this Form 4 filing.

Sandisk Corp (SNDK) reported that EVP & Chief Technology Officer Alper Ilkbahar received an equity compensation grant on September 17, 2026. The grant covers 1,619 restricted stock units, each representing a contingent right to one share of common stock, bringing his directly held common stock to 42,109 shares. No Rule 10b5-1 trading plan is reported for this grant.

Sandisk Corp (SNDK) reported that its Executive Vice President and Chief Financial Officer, Luis Felipe Visoso, sold 1,000 shares of common stock on September 15, 2026 in a sale characterized as an open market or private transaction at $1,568.83 per share, leaving him with 130,976 shares held directly. The filing states that this sale was effected under a Rule 10b5-1 trading plan adopted by him on May 22, 2026.

Sandisk Corp (SNDK) reported that chairman and CEO David Goeckeler sold 33,838 shares of common stock on September 14, 2026 in a series of open‑market or private transactions. The sales were made under a Rule 10b5-1 trading plan adopted on May 29, 2026, with weighted average prices per tranche generally around $1,522–$1,542 per share.

Sandisk Corp (SNDK) executive vice president and chief technology officer Alper Ilkbahar reported multiple transactions in the company’s common stock on September 3, 2026.

The filing shows open-market sales totaling 400 shares at prices around $1,561–$1,571 per share, made under a Rule 10b5-1 trading plan adopted June 4, 2026, plus a disposition of 3,244 shares withheld to pay tax obligations upon vesting of equity awards under Rule 16b-3(e). Post-transaction share holdings are not stated in this data.

Sandisk Corp (SNDK) reported that EVP & Chief Technology Officer Alper Ilkbahar sold company common stock in a series of open-market transactions on September 3, 2026. The filing shows 4,712 shares sold across 30 trades at prices generally between about $1,513 and $1,559 per share, all effected under a Rule 10b5-1 trading plan adopted on June 4, 2026.

Sandisk Corp (SNDK) reported that Chief Legal Officer & Secty Bernard Shek disposed of common stock in two transactions. On September 8, 2026, he sold 2,308 shares of common stock at $1,767.33 per share in an open-market or private transaction, pursuant to a Rule 10b5-1 trading plan adopted on March 4, 2026.

On September 3, 2026, 2,271 shares of common stock were disposed of at $1,554.99 per share to satisfy a tax obligation by withholding securities incident to the vesting of equity awards in accordance with Rule 16b-3(e). All reported holdings are direct, and no post-transaction share balance is stated.

Sandisk Corp (SNDK) reported that Chairman & CEO David Goeckeler had shares withheld on September 3, 2026 to satisfy tax obligations related to vesting equity awards. The transaction involved 10,540 shares of common stock treated as a disposition for tax withholding purposes and was carried out by the company under Rule 16b-3(e).

After this tax-withholding transaction, Goeckeler continues to hold 447,248 shares of Sandisk common stock directly. No open-market purchase or sale of shares is reported, and no Rule 10b5-1 trading plan is indicated.

Sandisk Corp (SNDK) reported an insider Form 4 for EVP & CFO Luis Felipe Visoso. On September 3, 2026, 5,838 shares of common stock were disposed of through share withholding to satisfy a tax obligation incident to vesting under Rule 16b-3(e). After this transaction, Visoso directly owns 131,976 shares of Sandisk common stock. No trades were reported under a Rule 10b5-1 trading plan.

Sandisk Corp (SNDK) reported that officer Michael Pokorny, Vice President and Chief Accounting Officer, had 1,283 shares of common stock withheld on September 3, 2026 to pay a tax obligation related to vesting equity, as permitted under Rule 16b-3(e). After this tax-withholding disposition, he directly holds 21,092 shares of Sandisk common stock. No Rule 10b5-1 trading plan is reported for this transaction.

Sandisk Corp (SNDK) reported that its Chief Legal Officer & Secretary, Bernard Shek, sold 600 shares of common stock on September 1, 2026 in a sale characterized as an open market or private transaction at a reported price of $1,525.60 per share.

After this transaction, he directly held 29,884 shares of Sandisk common stock. The filing states that the sales were effected pursuant to a Rule 10b5-1 trading plan adopted on March 4, 2026, indicating they were pre-arranged under that plan.

Sandisk Corp (SNDK) reported that Chief Legal Officer & Secty Bernard Shek had 212 shares of Common Stock disposed of on 2026-08-25 as a payment of tax obligation by withholding securities in connection with vesting, in accordance with Rule 16b-3(e). After this tax-withholding transaction, Shek directly holds 30,484 shares of Sandisk common stock.

Sandisk Corp (SNDK) reported that Chairman and CEO David Goeckeler had 49,782 shares of common stock withheld on 2026-08-25 to pay a tax obligation related to vesting equity awards. The transaction used a price of $1,480.77 per share and was reported as a tax-withholding disposition under Rule 16b-3(e). Following this withholding, Goeckeler directly held 457,788 shares of Sandisk common stock.

Sandisk Corp (SNDK) reported an insider tax-related share disposition by EVP and Chief Technology Officer Alper Ilkbahar. On 2026-08-25, 654 shares of common stock were withheld to satisfy a tax obligation incident to the vesting of securities under Rule 16b-3(e). Following this withholding, Ilkbahar directly holds 48,846 shares of Sandisk common stock.

Sandisk Corp (SNDK) executive Ilkbahar Alper, EVP and Chief Technology Officer, reported a sequence of equity compensation-related transactions. On August 20, 2026, 276 Performance Shares converted into an equal number of Common Stock shares in connection with retirement-eligibility FICA tax obligations, leaving 148,770 Performance Shares reported as remaining. To cover FICA and related tax liabilities, a total of 759 Common Stock shares were withheld and forfeited on August 20 and 21, 2026, at prices around $1,600 per share, with all such tax-withholding dispositions described as exempt under Rule 16b-3(e).

Sandisk Corp (SNDK) executive Luis Felipe Visoso, EVP & CFO, reported two Form 4 transactions involving company common stock. On August 20 and 21, 2026, a total of 27,244 shares were disposed of under code F as payment of tax obligations by withholding shares upon vesting, pursuant to Rule 16b-3(e). These are tax-withholding events rather than open-market purchases or sales.

Sandisk Corp (SNDK) reported that Chairman and CEO David Goeckeler had two Form 4 transactions in the company’s common stock. On 2026-08-21, 1,033 shares were disposed of at a reported $1,596.08 per share, and on 2026-08-20, 1,300 shares were disposed of at a reported $1,600.62 per share. In both cases, a footnote explains that the shares were withheld to satisfy a tax obligation arising from vesting of equity awards, with the transactions effected by withholding securities in accordance with Rule 16b-3(e), rather than open‑market sales.

Sandisk Corp (SNDK) reported that Chief Legal Officer & Secretary Bernard Shek had two Form 4 transactions in Common Stock. On August 20 and 21, 2026, a total of 219 shares were disposed of under code F, described as payment of a tax obligation by withholding shares incident to the vesting of equity awards in accordance with Rule 16b-3(e). These are tax-withholding dispositions rather than open-market sales, and no post-transaction holdings are reported in this filing.

Sandisk Corp Chief Legal Officer & Secretary Bernard Shek reported selling 600 shares of common stock on August 3, 2026 at $1,162.16 per share in an open-market or private transaction. The sale was made under a Rule 10b5-1 trading plan adopted March 4, 2026 and left him holding 30,915 shares directly.

Sandisk Corp Chief Legal Officer and Secretary Bernard Shek reported an open-market sale of common stock. He sold 600 shares on July 1, 2026 at a price of $2,088.00 per share. After this transaction, he directly holds 31,515 shares of Sandisk common stock.

The filing states that these sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person on March 4, 2026, indicating the trades were scheduled in advance rather than timed opportunistically.

Sandisk Corp Chief Legal Officer and Secretary Bernard Shek reported a small share disposition related to taxes rather than an open‑market trade. On the reported date, 117 shares of common stock were withheld at a price of 2,184.75 per share to satisfy tax obligations tied to vesting, as permitted under Rule 16b-3(e). After this tax-withholding event, Shek directly held 32,115 shares of Sandisk common stock, indicating the transaction affected only a small portion of his overall holdings.

Sandisk Corp’s Chief Legal Officer and Secretary, Bernard Shek, sold shares in a planned transaction. On June 3, 2026, he completed an open-market sale of 600 shares of common stock at $1,736 per share. After this sale, he directly held 32,232 common shares. According to a footnote, the sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on March 4, 2026, indicating the timing was set in advance rather than chosen opportunistically.

Sandisk Corp executive vice president and chief technology officer Alper Ilkbahar reported several common stock dispositions. On June 1, Ilkbahar sold a total of 2,000 shares in three open-market transactions at weighted average prices of $1,755.3132, $1,757.0000, and $1,758.3967 per share. On June 2, Ilkbahar made a bona fide gift of 2,694 shares of common stock to a charitable donor advised fund. Following these transactions, Ilkbahar directly owns 49,983 common shares.

Sandisk Corp Chief Legal Officer and Secretary Bernard Shek reported a Form 4 transaction involving 211 shares of common stock on May 25, 2026. These shares were withheld at a price of $1,478.69 per share to satisfy tax obligations connected to vesting securities.

After this tax-withholding disposition, Shek directly held 32,832 shares of Sandisk common stock. The footnote explains that the withholding was a payment of tax obligations incident to vesting, carried out in accordance with Rule 16b-3(e), rather than an open-market sale.

Sandisk Corp director and CEO David Goeckeler reported a small tax-related share disposition. On 2026-05-25, 1,569 shares of Common Stock were withheld at a price of $1,478.69 per share to cover tax obligations tied to vesting equity awards under Rule 16b-3(e).

After this tax-withholding disposition, he directly holds 509,903 shares of Sandisk Corp common stock. This is a routine administrative transaction to satisfy taxes on vested shares rather than an open-market sale.

Sandisk Corp executive Alper Ilkbahar reported a tax-related share withholding. On this Form 4, 653 shares of common stock were disposed of at a price of $1,478.69 per share to satisfy tax obligations tied to vesting equity awards.

According to the filing, this was a payment of tax liability by delivering securities under Rule 16b-3(e), not an open-market sale. After the transaction, Ilkbahar directly holds 54,677 shares of Sandisk common stock.

Sandisk Corp executive Luis Felipe Visoso, EVP and Chief Financial Officer, reported a routine tax-related share disposition. On May 21, 2026, 1,588 shares of common stock were withheld to cover tax obligations tied to vesting, in accordance with Rule 16b-3(e), not an open-market sale.

After this withholding, Visoso directly holds 165,058 Sandisk common shares, indicating he retains a substantial equity position. The transaction is classified as a tax-withholding disposition rather than a discretionary buy or sell decision in the open market.

Sandisk Corp Chief Legal Officer Bernard Shek reported routine tax-related share withholdings. On two dates, a total of 216 shares of Common Stock were withheld to cover tax obligations tied to vesting equity awards under Rule 16b-3(e), rather than sold on the market.

After these tax-withholding dispositions, Shek directly holds 33,043 shares of Sandisk Common Stock, indicating the transactions represent a small portion of his overall reported equity position.

Sandisk Corp Chairman and CEO David Goeckeler reported routine tax-withholding share dispositions tied to equity vesting. On May 21, he had 1,032 Common Stock shares withheld at $1,542.24 per share to cover tax obligations. On May 20, an additional 1,299 shares were withheld at $1,392.56 per share for the same purpose, under Rule 16b-3(e). After these transactions, he directly holds 511,472 Common Stock shares, indicating these are minor, non‑market dispositions rather than open‑market sales.

Sandisk Corp executive Alper Ilkbahar reported routine share dispositions tied to tax withholding on recently vested equity awards. On May 21, 2026, 319 shares of Common Stock were withheld at $1,542.24 per share to satisfy tax obligations.

On May 20, 2026, an additional 162 shares were withheld at $1,392.56 per share for the same purpose. These transactions were made by delivering securities to pay taxes incident to vesting under Rule 16b-3(e). Following the transactions, Ilkbahar directly holds 55,330 shares of Sandisk Common Stock.

Sandisk Corp VP and Chief Accounting Officer Michael Pokorny reported an open-market sale of 2,446 shares of Common Stock. The shares were sold at a price of 1426.18 per share. After this transaction, he directly holds 22,375 shares, meaning he sold about 11% of his direct holdings.

Sandisk Corp director Thomas Caulfield reported a family estate-planning gift of company stock. On May 12, 2026, his spouse's trust gifted 9,666 shares of Sandisk common stock to irrevocable trusts for their children as part of estate planning.

The filing describes this as a bona fide gift with no sale proceeds. Caulfield disclaims beneficial ownership of the gifted shares, which are now held by a third-party trustee. After these transactions, he reports owning 2,312 shares directly and 4,834 shares indirectly through his spouse's trust.

Sandisk Corp director Necip Sayiner reported an open-market sale of Common Stock. On May 8, 2026, he sold 579 shares at $1503.11 per share. After this transaction, he directly owns 2,900 Sandisk shares, indicating he retains a meaningful ongoing stake.

Sandisk Corp Vice President and Chief Accounting Officer Michael Pokorny reported a routine share withholding to cover taxes on vested equity. On May 9, 2026, 1,429 shares of common stock were disposed of as a tax-withholding transaction under Rule 16b-3(e), rather than an open-market sale. After this withholding, he directly holds 24,821 shares of Sandisk common stock.

Sandisk Corp Chief Legal Officer and Secretary Bernard Shek reported a routine tax-related share disposition. On 2026-04-20, 41 shares of common stock were withheld at $913.02 per share to satisfy tax obligations tied to vesting, under Rule 16b-3(e). After this withholding, Shek directly owned 33,259 shares of Sandisk common stock. This was not an open-market sale but an automatic payment of tax liability using shares.

Sandisk Corp EVP and Chief Technology Officer Alper Ilkbahar reported a routine tax-withholding share disposition. On the vesting of equity awards, 2,251 shares of common stock were withheld at an indicated price of $913.02 per share to cover tax obligations under Rule 16b-3(e). Following this non‑market transaction, Ilkbahar directly holds 55,811 shares of Sandisk common stock.

Sandisk Corp Chief Legal Officer & Secretary Bernard Shek reported a small share disposition related to taxes, not an open-market trade. On this Form 4, 117 shares of common stock were withheld at $709.71 per share to satisfy tax obligations upon vesting under Rule 16b-3(e). After this tax-withholding event, Shek directly holds 33,300 shares of Sandisk common stock.

Sandisk Corp director Thomas Caulfield reported gifting shares of company stock for estate planning purposes. On the reported date, he made two bona fide gift transfers of Common Stock totaling 29,000 shares: 14,500 shares from his direct holdings and 14,500 shares held indirectly through a spouse's trust, both at a price of $0.00 per share. Following these transfers, he directly held 2,312 shares and 14,500 shares continued to be held indirectly in the spouse's trust. The transferred shares remain subject to transfer restrictions under a lock-up agreement that expires on March 19, 2026.

Sandisk Corp Chief Legal Officer & Secretary Bernard Shek reported a tax-related share withholding on common stock. On this Form 4, 211 shares were disposed of at $632.38 per share to satisfy tax obligations tied to vesting. After this withholding, Shek directly holds 33,417 shares of Sandisk common stock.

Sandisk Corp director and Chairman & CEO David Goeckeler reported a tax-related share disposition. On February 25, 2026, 1,569 shares of common stock were withheld at $632.38 per share to satisfy tax obligations tied to vesting, described as a Rule 16b-3(e) tax-withholding transaction.

This was a tax-withholding disposition, not an open-market sale or discretionary trade. After this withholding, Goeckeler directly owned 513,803 shares of Sandisk common stock.

Sandisk Corp executive vice president and chief technology officer Alper Ilkbahar reported a small share disposition related to taxes. On this Form 4, 566 shares of common stock were withheld at $632.38 per share to satisfy tax obligations upon vesting. After this tax-withholding transaction, Ilkbahar directly holds 58,062 shares of Sandisk common stock.

Sandisk Corp director Suzuki Miyuki sold 3,500 shares of common stock in an open-market transaction. The shares were sold at a weighted average price of $627.5313 per share, in multiple trades between $627.39 and $627.5351. The sale was made to satisfy tax obligations arising from the vesting of equity awards for the tax year ended December 31, 2025 and related capital gains for the tax year ending December 31, 2026. After this transaction, Miyuki held 9,907 Sandisk shares directly. The director is subject to a lock-up agreement expiring on March 19, 2026, and these sales are specifically permitted as an exception under that lock-up.

Sandisk Corp executive vice president and CFO Luis Felipe Visoso reported a tax-related share disposition. On the transaction date, 1,594 shares of common stock were withheld at $649.97 per share to satisfy tax obligations tied to vesting, leaving him with 166,646 shares owned directly.

Sandisk Corp Chief Legal Officer and Secretary Bernard Shek reported two tax-related share dispositions under a Form 4. He used share withholding to cover tax obligations when equity awards vested, rather than selling shares in the open market.

The transactions involved 117 shares of common stock on February 20 and 107 shares on February 21, both coded as tax-withholding dispositions. After these withholdings, Shek directly owned 33,628 shares of Sandisk common stock.