Sandisk Corporation (SNDK) Insider Trading
Over the last 3 months, SNDK insiders made 0 open-market buys and 6 sales, a net sale of -$8.9M (SEC Form 4). Over the last 6 months, 557 institutions increased and 456 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
6
Net (3m)
-$8.9M
Insider trades by month Buys Sells
Feb
May
Dec
Feb
May
Jun
Context3-month price +257.9%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 22, 2026 | Shek Bernardofficer: Chief Legal Officer & Secty | Tax | 117 | $2184.75 |
| Jun 5, 2026 | Shek Bernardofficer: Chief Legal Officer & Secty | Sell | 600 | $1736.00 |
| Jun 2, 2026 | Ilkbahar Alperofficer: EVP, Chief Technology Officer | Sell | 600 | $1758.40 |
| Jun 2, 2026 | Ilkbahar Alperofficer: EVP, Chief Technology Officer | Sell | 401 | $1757.00 |
| Jun 2, 2026 | Ilkbahar Alperofficer: EVP, Chief Technology Officer | Sell | 999 | $1755.31 |
| May 27, 2026 | Goeckeler Daviddirector, officer: Chairman and CEO | Tax | 1,569 | $1478.69 |
| May 27, 2026 | Ilkbahar Alperofficer: EVP, Chief Technology Officer | Tax | 653 | $1478.69 |
| May 27, 2026 | Shek Bernardofficer: Chief Legal Officer & Secty | Tax | 211 | $1478.69 |
| May 22, 2026 | Ilkbahar Alperofficer: EVP, Chief Technology Officer | Tax | 319 | $1542.24 |
| May 22, 2026 | Shek Bernardofficer: Chief Legal Officer & Secty | Tax | 107 | $1542.24 |
| May 22, 2026 | Goeckeler Daviddirector, officer: Chairman and CEO | Tax | 1,299 | $1392.56 |
| May 22, 2026 | Ilkbahar Alperofficer: EVP, Chief Technology Officer | Tax | 162 | $1392.56 |
| May 22, 2026 | Shek Bernardofficer: Chief Legal Officer & Secty | Tax | 109 | $1392.56 |
| May 22, 2026 | Goeckeler Daviddirector, officer: Chairman and CEO | Tax | 1,032 | $1542.24 |
| May 22, 2026 | Visoso Luis Felipeofficer: EVP and Chief Financial Office | Tax | 1,588 | $1542.24 |
| May 14, 2026 | Pokorny Michaelofficer: VP, Chief Accounting Officer | Sell | 2,446 | $1426.18 |
| May 11, 2026 | Pokorny Michaelofficer: VP, Chief Accounting Officer | Tax | 1,429 | $1562.34 |
| May 11, 2026 | Sayiner Necipdirector | Sell | 579 | $1503.11 |
| Apr 21, 2026 | Ilkbahar Alperofficer: EVP, Chief Technology Officer | Tax | 2,251 | $913.02 |
| Apr 21, 2026 | Shek Bernardofficer: Chief Legal Officer & Secty | Tax | 41 | $913.02 |
| Mar 24, 2026 | Shek Bernardofficer: Chief Legal Officer & Secty | Tax | 117 | $709.71 |
| Feb 27, 2026 | Shek Bernardofficer: Chief Legal Officer & Secty | Tax | 211 | $632.38 |
| Feb 27, 2026 | Ilkbahar Alperofficer: EVP, Chief Technology Officer | Tax | 566 | $632.38 |
| Feb 27, 2026 | Goeckeler Daviddirector, officer: Chairman & CEO | Tax | 1,569 | $632.38 |
| Feb 26, 2026 | Suzuki Miyukidirector | Sell | 3,500 | $627.53 |
| Feb 24, 2026 | Goeckeler Daviddirector, officer: Chairman & CEO | Tax | 1,032 | $649.97 |
| Feb 24, 2026 | Ilkbahar Alperofficer: EVP, Chief Technology Officer | Tax | 122 | $649.97 |
| Feb 24, 2026 | Shek Bernardofficer: Chief Legal Officer & Secty | Tax | 117 | $649.97 |
| Feb 24, 2026 | Visoso Luis Felipeofficer: EVP and CFO | Tax | 1,594 | $649.97 |
| Feb 24, 2026 | Ilkbahar Alperofficer: EVP, Chief Technology Officer | Tax | 223 | $649.97 |
Source: SNDK SEC Form 4 filings, latest Jun 22, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their SNDK positions over the last 6 months (SEC Form 13F).
Increased
557
New positions
792
Reduced
456
Sold out
113
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| FMR LLC | Reduced | 21.5M | Feb 17, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 19.1M | May 15, 2026 |
| VANGUARD GROUP INC | Reduced | 17.0M | Jan 29, 2026 |
| FMR LLC | Reduced | 13.4M | May 15, 2026 |
| BLACKROCK, INC. | Increased | 10.4M | May 13, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 9.6M | May 15, 2026 |
| BLACKROCK, INC. | Reduced | 9.6M | Feb 12, 2026 |
| JANE STREET GROUP, LLC | Increased | 7.5M | May 12, 2026 |
| CITADEL ADVISORS LLC | Increased | 6.6M | May 15, 2026 |
| STATE STREET CORP | Increased | 5.6M | May 15, 2026 |
| STATE STREET CORP | Increased | 5.3M | Feb 13, 2026 |
| GOLDMAN SACHS GROUP INC | Increased | 5.1M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 4.2M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 3.7M | Feb 9, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 3.6M | May 8, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.