Greedy Insider
Sandisk Corp (SNDK) Insider Trades and Scores
Sandisk Corp (SNDK) insider trades: since Dec 20, 2025, Greedy Insider recorded 0 open-market buys and 121 sales on Form 4 from 7 insiders. The strongest recent filing scored 93 (Strong).
Who bought and who sold
Across the last 121 scoreable Form 4 transactions in SNDK, 0 were open-market purchases and 121 were sales. The table lists the most recent filings with each one's Greediness Score, so the structurally unusual trades are easy to spot first.
| Insider | Role | Type | Shares | Date | Score | ||
|---|---|---|---|---|---|---|---|
| Shek Bernard | Chief Legal Officer and Secty | Sell | 322.0 | 439652.38 | 2026-10-20 | 69 | View |
| Shek Bernard | Chief Legal Officer and Secty | Sell | 600.0 | 1040964.0 | 2026-10-01 | 75 | View |
| Shek Bernard | Chief Legal Officer and Secty | Sell | 118.0 | 211434.77 | 2026-09-20 | 69 | View |
| Goeckeler David | Chair | Sell | 40.0 | 62690.22 | 2026-09-17 | 66 | View |
| Goeckeler David | Chair | Sell | 9604.0 | 15068664.0 | 2026-09-17 | 83 | View |
| Goeckeler David | Chair | Sell | 910.0 | 1428737.0 | 2026-09-17 | 66 | View |
| Goeckeler David | Chair | Sell | 4558.0 | 7161579.0 | 2026-09-17 | 78 | View |
| Goeckeler David | Chair | Sell | 1157.0 | 1819501.2 | 2026-09-17 | 68 | View |
| Goeckeler David | Chair | Sell | 306.0 | 481385.16 | 2026-09-17 | 66 | View |
| Goeckeler David | Chair | Sell | 2588.0 | 4074980.5 | 2026-09-17 | 73 | View |
The strongest recent filing
Shek Bernard (Chief Legal Officer & Secty) sold 2,308 shares of Sandisk Corp on Sep 8, 2026, a filing that scored 93 (Strong). It scored Strong because a senior insider was trading and it was direct personal ownership. The score describes the filing, not future returns. This is not investment advice.
Cluster activity
A cluster buy is present: 5 insiders (Visoso Luis Felipe, Goeckeler David, Shek Bernard, Ilkbahar Alper) traded SNDK the same direction within a 7-day window. Shared conviction is a stronger structural signal than a lone trade.
How this compares with Sandisk Corp's own history
Open-market buys make up 0% of the 121 scoreable SNDK transactions on record between Dec 20, 2025 and Oct 20, 2026. Comparing a filing with the company's own buy/sell mix is how you tell a routine disposal from an unusual accumulation.
Methodology and sources
Scores come from six published, user-adjustable factors (insider role, cluster activity, trade size versus the insider's own history, position impact, filing urgency, and direct versus indirect ownership). The score describes the filing, not future returns. This is not investment advice.
Key facts
- Scoreable Form 4 transactions on record: 121
- Open-market buys: 0
- Sales: 121
- Distinct insiders: 7
- Strongest recent Greediness Score: 93 (Strong)
Primary sources
Related
- Strongest filing
- SNDK in the live feed
- How the Greediness Score works
- What is a cluster buy?
- Form 4 transaction codes
The score describes the filing, not future returns. This is not investment advice.