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SNDKSandisk

Technology · Computer Storage · Nasdaq

Prior to February 21, 2025, we were wholly owned by Western Digital Corporation (“WDC”). 10-K, Item 1

Headquarters
Milpitas, CA
CEO
David Goeckeler
Next results
around Jan 28, 2027
Compare with peers → Embed

What SNDK's directors and officers said they would sell, before they sold: trading plans the company reports each quarter, and the Form 144 notices sellers file on the day of a planned sale. Facts only; most of these sales are routine, such as selling shares from vesting stock awards.

Trading plans adopted or ended

4 plans still running: Sandra Eng-Caulfield Revocable Trust, David Goeckeler, Luis Visoso, Bernard Shek.

InsiderWhatDateSharesRuns toReported in
Sandra Eng-Caulfield Revocable Trust
spouse of director
Adopted 10b5-1 plan Aug 27, 2026 up to 4,000 Aug 31, 2027 10-Q Oct 30, 2026
The company's description
The Sandra Eng-Caulfield Revocable Trust, a revocable trust of the spouse of director Thomas Caulfield, adopted a 10b5-1 Plan on August 27, 2026. The maximum amount of shares that may be sold before the plan expires on August 31, 2027 is up to an aggregate of 4,000 shares of the Company’s common stock.
David Goeckeler
Chief Executive Officer of the Company
Adopted 10b5-1 plan May 29, 2026 up to 124,192 489 days 10-K Aug 17, 2026
The company's description
David Goeckeler, Chief Executive Officer of the Company, adopted a Rule 10b5-1 Plan on May 29, 2026. The aggregate number of shares that will be available for sale under his plan is not yet determinable because a portion of the shares will be withheld to satisfy tax withholding obligations at an approximate rate of 45%. The maximum amount of shares that may be sold before the plan expires on September 30, 2027, is expected to be up to an aggregate of 124,192 shares of the Company’s common stock.
Luis Visoso
Chief Financial Officer of the Company
Adopted 10b5-1 plan May 22, 2026 up to 11,000 485 days 10-K Aug 17, 2026
The company's description
Luis Visoso, Chief Financial Officer of the Company, adopted a Rule 10b5-1 Plan on May 22, 2026. The maximum amount of shares that may be sold before the plan expires on August 14, 2027, is expected to be up to an aggregate of 11,000 shares of the Company’s common stock.
Alper Ilkbahar
Executive Vice President, Chief Technology Officer of the Company
Ended 10b5-1 plan May 21, 2026 up to 6,270 210 days 10-K Aug 17, 2026
The company's description
Alper Ilkbahar, Executive Vice President, Chief Technology Officer of the Company, terminated a Rule 10b5-1 Plan on May 21, 2026, which was initially adopted on February 27, 2026. As of the date of termination of the Rule 10b5-1 Trading Plan, no shares of common stock had been sold under this Rule 10b5-1 Plan. For additional details about the material terms of this arrangement, refer to the description under the heading “Insider Trading Arrangements” contained in Part II, Item 5. Other Information of our Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, which is incorporated herein by reference. Alper Ilkbahar, Executive Vice President, Chief Technology Officer of the Company, adopted a Rule 10b5-1 Plan on June 4, 2026. The maximum amount of shares that may be sold before the plan expires on December 31, 2026, is expected to be up to an aggregate of 6,270 shares of the Company’s common stock.
Bernard Shek
Chief Legal Officer and Secretary of the Company
Adopted 10b5-1 plan Mar 4, 2026 up to 10,465 Jul 2, 2027 10-Q May 1, 2026
The company's description
Bernard Shek, Chief Legal Officer and Secretary of the Company, adopted a 10b5-1 Plan on March 4, 2026. The aggregate number of shares that will be available for sale under his plan is not yet determinable because a portion of the shares will be withheld to satisfy tax withholding obligations at an approximate rate of 45%. The maximum amount of shares that may be sold before the plan expires on July 2, 2027 is expected to be up to an aggregate of 10,465 shares of the Company’s common stock.
Alper Ilkbahar
Executive Vice President, Chief Technology Officer of the Company
Adopted 10b5-1 plan Feb 27, 2026 up to 22,821 Dec 31, 2026 10-Q May 1, 2026
The company's description
Alper Ilkbahar, Executive Vice President, Chief Technology Officer of the Company, adopted a Rule 10b5-1 Plan on February 27, 2026. The aggregate number of shares that will be available for sale under his plan is not yet determinable because a portion of the shares will be withheld to satisfy tax withholding obligations at an approximate rate of 45%. The maximum amount of shares that may be sold before the plan expires on December 31, 2026 is expected to be up to an aggregate of 22,821 shares of the Company’s common stock.

From the XBRL of the company's 10-Qs and 10-Ks (Regulation S-K Item 408, reported since 2023): 9 filings checked since Mar 7, 2025.

Form 144 notices of planned sales

FiledSellerSharesValueShares came from10b5-1 planForm 4 sales after
Sep 17, 2026 DAVID GOECKELER
Director, Officer
33,841 $51,437,305 Performance Stock Units; Restricted Stock Units adopted May 29, 2026 33,841 shares from Sep 17, 2026
Sep 15, 2026 LUIS VISOSO
Officer
3,000 $4,655,970 Restricted Stock Units adopted May 22, 2026 1,000 shares from Sep 15, 2026
Sep 14, 2026 DAVID GOECKELER
Director, Officer
33,838 $55,269,297 Performance Stock Units; Restricted Stock Units adopted May 29, 2026 67,679 shares from Sep 14, 2026
Sep 8, 2026 BERNARD SHEK
Officer
4,108 $7,147,920 Restricted Stock Units; WDC-Spinoff adopted Mar 4, 2026 2,908 shares from Sep 8, 2026
Sep 3, 2026 ALPER ILKBAHAR
Officer
6,270 $9,739,818 Restricted Stock Units adopted Jun 4, 2026 5,112 shares from Sep 3, 2026
Jun 3, 2026 BERNARD SHEK
Officer
2,400 $4,119,264 Spin-off adopted Mar 4, 2026 1,200 shares from Jun 3, 2026
Jun 1, 2026 ALPER ILKBAHAR
Officer
2,000 $3,513,153 Restricted stock vesting under a registered plan none given 2,000 shares from Jun 1, 2026
May 12, 2026 MICHAEL POKORNY
Officer
2,446 $3,488,436 Restricted Stock none given 2,446 shares from May 12, 2026
May 8, 2026 NECIP SAYINER
Director
579 $870,301 Restricted Stock none given 579 shares from May 8, 2026
Feb 25, 2026 MIYUKI SUZUKI
Director
3,500 $2,196,360 Restricted Stock none given none found
Feb 3, 2026 MASSENGILL LIVING TRUST
Former Affiliate
2,000 $1,331,060 Restricted stock vesting under a registered plan none given none found
Feb 2, 2026 MASSENGILL LIVING TRUST
Former Affiliate
2,000 $1,331,060 Restricted stock vesting under a registered plan none given none found
Jan 22, 2026 KIMBERLY ALEXY
Former Director
1,367 $690,335 Restricted Stock none given none found
Jan 21, 2026 MASSENGILL LIVING TRUST
Former Affiliate
2,000 $984,571 Restricted stock vesting under a registered plan none given none found
Jan 16, 2026 KIMBERLY ALEXY
Former Director
1,737 $739,962 Restricted Stock none given none found
Jan 15, 2026 MASSENGILL LIVING TRUST
Former Affiliate
1,000 $421,459 Restricted stock vesting under a registered plan none given none found
Jan 7, 2026 MASSENGILL LIVING
Former Affiliate
2,000 $693,839 Restricted stock vesting under a registered plan none given none found
Jan 6, 2026 KIMBERLY ALEXY
Director
3,000 $1,011,940 Restricted Stock none given none found
Jan 6, 2026 MASSENGILL LIVING TRUST
Former Affiliate
2,816 $953,009 Restricted stock vesting under a registered plan none given none found
Dec 3, 2025 NECIP SAYINER
Director
1,271 $248,027 Restricted Stock none given none found
Nov 26, 2025 MASSENGILL LIVING TRUST
Former Affiliate
2,340 $508,395 Restricted stock vesting under a registered plan none given none found
Nov 25, 2025 MASSENGILL LIVING TRUST
Former Director
1,500 $335,625 Restricted stock vesting under a registered plan none given none found
Nov 24, 2025 MASSENGILL LIVING TRUST
Former Affiliate
1,000 $225,220 Restricted stock vesting under a registered plan none given none found
Nov 21, 2025 KIMBERLY ALEXY
Director
2,401 $485,830 Restricted Stock none given none found
Nov 20, 2025 KIMBERLY ALEXY
Director
3,000 $652,664 Restricted Stock none given none found

From the Form 144 XML filed with the SEC, since Nov 20, 2025. The value is the seller's estimate on the notice. "Form 4 sales after" matches the seller's Form 4 sales in the 30 days after the notice, by name; Form 4s go back 180 days.

Work on SNDK in a spreadsheet: Excel workbook (a sheet per section, ten years by column, charts, links to the filings) · CSV. For a Google Sheet that stays up to date, paste =IMPORTDATA("https://tickdelta.com/company/SNDK/export.csv") into a cell.