Shek Bernard
- Shares
- 32.23K
- % company
- 0.02%
- Price
- $1,736
- Value
- $55,954,752
Filed Jun 3, 2026
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
NASDAQ · TECHNOLOGY · Holders
Sandisk Corp (SNDK) Institutional Ownership & Insider Trading History
Recent insider purchases and sales for SNDK from Form 4 filings. Institutional holdings surface here when ownership sources publish.
Section freshness
Price Jun 24, 4:00 PM EDT · Statements Mar 30, 8:00 PM EDT
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Prices update fastest. Fundamentals, analyst data, and news update on their own schedules, so check these timestamps before comparing signals.
Price time means the latest available trade or regular-market close. Other times show when that section was checked or published.
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Last traded •
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Ownership read
SNDK insider sentiment: Net selling.
8 sales and 0 purchases appear in the recent Form 4 filings. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
SNDK
Purchases—
Sales230.53K
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
—
Institutional data pending
Insider stance
Net selling
$379.58M sold / — bought
Latest filing
Jun 3, 2026
Most recent holder or insider filing date
Filings shown
79
0 holder / 79 insider
- Holder rows
- Pending
- Market data source
- Latest filing
- Jun 3, 2026
- Most recent holder or insider filing date
- Increased / initiated
- Pending
- 0 decreased
- Insider rows
- 79
- Market data source
Recent insider transactions
Sandisk Corp (SNDK) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
Ilkbahar Alper
- Shares
- 49.98K
- % company
- 0.03%
- Price
- Non-cash
- Value
- Non-cash
Filed Jun 2, 2026
Ilkbahar Alper
- Shares
- 52.68K
- % company
- 0.04%
- Price
- $1,758
- Value
- $92,627,063
Filed Jun 1, 2026
Ilkbahar Alper
- Shares
- 53.28K
- % company
- 0.04%
- Price
- $1,757
- Value
- $93,607,689
Filed Jun 1, 2026
Ilkbahar Alper
- Shares
- 53.68K
- % company
- 0.04%
- Price
- $1,755
- Value
- $94,221,702
Filed Jun 1, 2026
Shek Bernard
- Shares
- 32.83K
- % company
- 0.02%
- Price
- $1,479
- Value
- $48,548,350
Filed May 25, 2026
Ilkbahar Alper
- Shares
- 54.68K
- % company
- 0.04%
- Price
- $1,479
- Value
- $80,850,333
Filed May 25, 2026
Goeckeler David
- Shares
- 509.90K
- % company
- 0.34%
- Price
- $1,479
- Value
- $753,988,467
Filed May 25, 2026
Shek Bernard
- Shares
- 33.04K
- % company
- 0.02%
- Price
- $1,542
- Value
- $50,960,236
Filed May 21, 2026
Ilkbahar Alper
- Shares
- 55.33K
- % company
- 0.04%
- Price
- $1,542
- Value
- $85,332,139
Filed May 21, 2026
Visoso Luis Felipe
- Shares
- 165.06K
- % company
- 0.11%
- Price
- $1,542
- Value
- $254,559,050
Filed May 21, 2026
Goeckeler David
- Shares
- 511.47K
- % company
- 0.35%
- Price
- $1,542
- Value
- $788,812,577
Filed May 21, 2026
Shek Bernard
- Shares
- 33.15K
- % company
- 0.02%
- Price
- $1,393
- Value
- $46,163,364
Filed May 20, 2026
Ilkbahar Alper
- Shares
- 55.65K
- % company
- 0.04%
- Price
- $1,393
- Value
- $77,494,571
Filed May 20, 2026
Goeckeler David
- Shares
- 512.50K
- % company
- 0.35%
- Price
- $1,393
- Value
- $713,692,570
Filed May 20, 2026
Pokorny Michael
- Shares
- 22.38K
- % company
- 0.02%
- Price
- $1,426
- Value
- $31,910,778
Filed May 12, 2026
Caulfield Thomas
- Shares
- 4.83K
- % company
- <0.01%
- Price
- Non-cash
- Value
- Non-cash
Filed May 12, 2026
Pokorny Michael
- Shares
- 24.82K
- % company
- 0.02%
- Price
- $1,562
- Value
- $38,778,841
Filed May 9, 2026
Sayiner Necip
- Shares
- 2.90K
- % company
- <0.01%
- Price
- $1,503
- Value
- $4,359,019
Filed May 8, 2026
Shek Bernard
- Shares
- 33.26K
- % company
- 0.02%
- Price
- $913.02
- Value
- $30,366,132
Filed Apr 20, 2026
Ilkbahar Alper
- Shares
- 55.81K
- % company
- 0.04%
- Price
- $913.02
- Value
- $50,956,559
Filed Apr 20, 2026
Shek Bernard
- Shares
- 33.30K
- % company
- 0.02%
- Price
- $709.71
- Value
- $23,633,343
Filed Mar 20, 2026
Caulfield Thomas
- Shares
- 14.50K
- % company
- <0.01%
- Price
- Non-cash
- Value
- Non-cash
Filed Mar 3, 2026
Caulfield Thomas
- Shares
- 2.31K
- % company
- <0.01%
- Price
- Non-cash
- Value
- Non-cash
Filed Mar 3, 2026
Goeckeler David
- Shares
- 513.80K
- % company
- 0.35%
- Price
- $632.38
- Value
- $324,918,741
Filed Feb 25, 2026
Shek Bernard
- Shares
- 33.42K
- % company
- 0.02%
- Price
- $632.38
- Value
- $21,132,242
Filed Feb 25, 2026
Ilkbahar Alper
- Shares
- 58.06K
- % company
- 0.04%
- Price
- $632.38
- Value
- $36,717,248
Filed Feb 25, 2026
Suzuki Miyuki
- Shares
- 9.91K
- % company
- <0.01%
- Price
- $627.53
- Value
- $6,216,953
Filed Feb 25, 2026
Shek Bernard
- Shares
- 33.63K
- % company
- 0.02%
- Price
- $649.97
- Value
- $21,857,191
Filed Feb 21, 2026
Ilkbahar Alper
- Shares
- 58.63K
- % company
- 0.04%
- Price
- $649.97
- Value
- $38,106,441
Filed Feb 21, 2026
Visoso Luis Felipe
- Shares
- 166.65K
- % company
- 0.11%
- Price
- $649.97
- Value
- $108,314,901
Filed Feb 21, 2026
Goeckeler David
- Shares
- 515.37K
- % company
- 0.35%
- Price
- $649.97
- Value
- $334,976,339
Filed Feb 21, 2026
Shek Bernard
- Shares
- 33.73K
- % company
- 0.02%
- Price
- $649.97
- Value
- $21,926,738
Filed Feb 20, 2026
Ilkbahar Alper
- Shares
- 58.85K
- % company
- 0.04%
- Price
- $649.97
- Value
- $38,251,384
Filed Feb 20, 2026
Goeckeler David
- Shares
- 516.40K
- % company
- 0.35%
- Price
- $649.97
- Value
- $335,647,108
Filed Feb 20, 2026
Shek Bernard
- Shares
- 33.85K
- % company
- 0.02%
- Price
- $453.12
- Value
- $15,339,018
Filed Jan 20, 2026
Bradley Alexander R.
- Shares
- 863
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Dec 30, 2025
Shek Bernard
- Shares
- 33.89K
- % company
- 0.02%
- Price
- $237.61
- Value
- $8,051,652
Filed Dec 20, 2025
Sayiner Necip
- Shares
- 3.48K
- % company
- <0.01%
- Price
- $195.14
- Value
- $678,902
Filed Dec 3, 2025
Shek Bernard
- Shares
- 34.00K
- % company
- 0.02%
- Price
- $220.50
- Value
- $7,497,662
Filed Nov 25, 2025
Ilkbahar Alper
- Shares
- 58.97K
- % company
- 0.04%
- Price
- $220.50
- Value
- $13,003,547
Filed Nov 25, 2025
Goeckeler David
- Shares
- 517.70K
- % company
- 0.35%
- Price
- $220.50
- Value
- $114,153,732
Filed Nov 25, 2025
Shek Bernard
- Shares
- 34.21K
- % company
- 0.02%
- Price
- $200.27
- Value
- $6,852,038
Filed Nov 21, 2025
Ilkbahar Alper
- Shares
- 59.63K
- % company
- 0.04%
- Price
- $200.27
- Value
- $11,941,299
Filed Nov 21, 2025
Visoso Luis Felipe
- Shares
- 168.24K
- % company
- 0.11%
- Price
- $200.27
- Value
- $33,693,425
Filed Nov 21, 2025
Goeckeler David
- Shares
- 519.27K
- % company
- 0.35%
- Price
- $200.27
- Value
- $103,994,804
Filed Nov 21, 2025
Shek Bernard
- Shares
- 34.32K
- % company
- 0.02%
- Price
- $195.96
- Value
- $6,725,543
Filed Nov 20, 2025
Pokorny Michael
- Shares
- 26.25K
- % company
- 0.02%
- Price
- $195.96
- Value
- $5,143,950
Filed Nov 20, 2025
Ilkbahar Alper
- Shares
- 59.95K
- % company
- 0.04%
- Price
- $195.96
- Value
- $11,746,822
Filed Nov 20, 2025
Goeckeler David
- Shares
- 520.30K
- % company
- 0.35%
- Price
- $195.96
- Value
- $101,958,968
Filed Nov 20, 2025
Cassidy Richard B. II
- Shares
- 4.91K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Nov 18, 2025
Suzuki Miyuki
- Shares
- 13.41K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Nov 18, 2025
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | Shek Bernard | 0.02% | SaleOpen-market or direct sale reported on Form 4. | 32.23K | $1,736 | $55,954,752 | Jun 3, 2026 |
| 2 | Ilkbahar Alper | 0.03% | GiftGift transfer. Usually non-cash and not an open-market sale. | 49.98K | Non-cash | Non-cash | Jun 2, 2026 |
| 3 | Ilkbahar Alper | 0.04% | SaleOpen-market or direct sale reported on Form 4. | 52.68K | $1,758 | $92,627,063 | Jun 1, 2026 |
| 4 | Ilkbahar Alper | 0.04% | SaleOpen-market or direct sale reported on Form 4. | 53.28K | $1,757 | $93,607,689 | Jun 1, 2026 |
| 5 | Ilkbahar Alper | 0.04% | SaleOpen-market or direct sale reported on Form 4. | 53.68K | $1,755 | $94,221,702 | Jun 1, 2026 |
| 6 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 32.83K | $1,479 | $48,548,350 | May 25, 2026 |
| 7 | Ilkbahar Alper | 0.04% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 54.68K | $1,479 | $80,850,333 | May 25, 2026 |
| 8 | Goeckeler David | 0.34% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 509.90K | $1,479 | $753,988,467 | May 25, 2026 |
| 9 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 33.04K | $1,542 | $50,960,236 | May 21, 2026 |
| 10 | Ilkbahar Alper | 0.04% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 55.33K | $1,542 | $85,332,139 | May 21, 2026 |
| 11 | Visoso Luis Felipe | 0.11% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 165.06K | $1,542 | $254,559,050 | May 21, 2026 |
| 12 | Goeckeler David | 0.35% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 511.47K | $1,542 | $788,812,577 | May 21, 2026 |
| 13 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 33.15K | $1,393 | $46,163,364 | May 20, 2026 |
| 14 | Ilkbahar Alper | 0.04% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 55.65K | $1,393 | $77,494,571 | May 20, 2026 |
| 15 | Goeckeler David | 0.35% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 512.50K | $1,393 | $713,692,570 | May 20, 2026 |
| 16 | Pokorny Michael | 0.02% | SaleOpen-market or direct sale reported on Form 4. | 22.38K | $1,426 | $31,910,778 | May 12, 2026 |
| 17 | Caulfield Thomas | <0.01% | GiftGift transfer. Usually non-cash and not an open-market sale. | 4.83K | Non-cash | Non-cash | May 12, 2026 |
| 18 | Pokorny Michael | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 24.82K | $1,562 | $38,778,841 | May 9, 2026 |
| 19 | Sayiner Necip | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 2.90K | $1,503 | $4,359,019 | May 8, 2026 |
| 20 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 33.26K | $913.02 | $30,366,132 | Apr 20, 2026 |
| 21 | Ilkbahar Alper | 0.04% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 55.81K | $913.02 | $50,956,559 | Apr 20, 2026 |
| 22 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 33.30K | $709.71 | $23,633,343 | Mar 20, 2026 |
| 23 | Caulfield Thomas | <0.01% | GiftGift transfer. Usually non-cash and not an open-market sale. | 14.50K | Non-cash | Non-cash | Mar 3, 2026 |
| 24 | Caulfield Thomas | <0.01% | GiftGift transfer. Usually non-cash and not an open-market sale. | 2.31K | Non-cash | Non-cash | Mar 3, 2026 |
| 25 | Goeckeler David | 0.35% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 513.80K | $632.38 | $324,918,741 | Feb 25, 2026 |
| 26 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 33.42K | $632.38 | $21,132,242 | Feb 25, 2026 |
| 27 | Ilkbahar Alper | 0.04% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 58.06K | $632.38 | $36,717,248 | Feb 25, 2026 |
| 28 | Suzuki Miyuki | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 9.91K | $627.53 | $6,216,953 | Feb 25, 2026 |
| 29 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 33.63K | $649.97 | $21,857,191 | Feb 21, 2026 |
| 30 | Ilkbahar Alper | 0.04% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 58.63K | $649.97 | $38,106,441 | Feb 21, 2026 |
| 31 | Visoso Luis Felipe | 0.11% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 166.65K | $649.97 | $108,314,901 | Feb 21, 2026 |
| 32 | Goeckeler David | 0.35% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 515.37K | $649.97 | $334,976,339 | Feb 21, 2026 |
| 33 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 33.73K | $649.97 | $21,926,738 | Feb 20, 2026 |
| 34 | Ilkbahar Alper | 0.04% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 58.85K | $649.97 | $38,251,384 | Feb 20, 2026 |
| 35 | Goeckeler David | 0.35% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 516.40K | $649.97 | $335,647,108 | Feb 20, 2026 |
| 36 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 33.85K | $453.12 | $15,339,018 | Jan 20, 2026 |
| 37 | Bradley Alexander R. | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 863 | No cash value | No cash value | Dec 30, 2025 |
| 38 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 33.89K | $237.61 | $8,051,652 | Dec 20, 2025 |
| 39 | Sayiner Necip | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 3.48K | $195.14 | $678,902 | Dec 3, 2025 |
| 40 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 34.00K | $220.50 | $7,497,662 | Nov 25, 2025 |
| 41 | Ilkbahar Alper | 0.04% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 58.97K | $220.50 | $13,003,547 | Nov 25, 2025 |
| 42 | Goeckeler David | 0.35% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 517.70K | $220.50 | $114,153,732 | Nov 25, 2025 |
| 43 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 34.21K | $200.27 | $6,852,038 | Nov 21, 2025 |
| 44 | Ilkbahar Alper | 0.04% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 59.63K | $200.27 | $11,941,299 | Nov 21, 2025 |
| 45 | Visoso Luis Felipe | 0.11% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 168.24K | $200.27 | $33,693,425 | Nov 21, 2025 |
| 46 | Goeckeler David | 0.35% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 519.27K | $200.27 | $103,994,804 | Nov 21, 2025 |
| 47 | Shek Bernard | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 34.32K | $195.96 | $6,725,543 | Nov 20, 2025 |
| 48 | Pokorny Michael | 0.02% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 26.25K | $195.96 | $5,143,950 | Nov 20, 2025 |
| 49 | Ilkbahar Alper | 0.04% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 59.95K | $195.96 | $11,746,822 | Nov 20, 2025 |
| 50 | Goeckeler David | 0.35% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 520.30K | $195.96 | $101,958,968 | Nov 20, 2025 |
| 51 | Cassidy Richard B. II | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 4.91K | No cash value | No cash value | Nov 18, 2025 |
| 52 | Suzuki Miyuki | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 13.41K | No cash value | No cash value | Nov 18, 2025 |
Showing 52 of 79 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders
Frequently asked
Common questions.
Who are the largest SNDK shareholders?
Sandisk Corp (SNDK) institutional holders are ranked by reported share count when ownership data publishes filing rows.
What is institutional ownership of SNDK?
Sandisk Corp (SNDK) institutional ownership appears when filing-based market data returns holder rows. TECHi does not fill unavailable ownership fields with placeholder shareholders.
Where can I see Sandisk Corp insider transactions?
Sandisk Corp (SNDK) has 79 Form 4 insider transactions on file, most recently on Jun 3, 2026, separated into purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are distinguished from open-market trades.
Are SNDK insiders buying or selling?
Recent SNDK insider activity reads Net selling: 8 sales and 0 purchases. Awards, gifts, conversions, and tax withholding are listed separately because they do not carry the same signal as open-market trades.
Who is the most active SNDK insider?
Goeckeler David is the most active SNDK insider by absolute share movement, with 6.91 million shares moving across the filing history. Review the action labels before treating that activity as buying or selling.