SNDKSandisk
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
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.
| Insider | What | Date | Shares | Runs to | Reported 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 descriptionThe 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 descriptionDavid 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 descriptionLuis 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 descriptionAlper 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 descriptionBernard 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 descriptionAlper 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
| Filed | Seller | Shares | Value | Shares came from | 10b5-1 plan | Form 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.