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SEC Form 4 research

Sandisk Corp insider transactions

Inspect Sandisk Corp's public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0002023554
Reporting owners
15
Officers and directors
7
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What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78.
In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

Show the table · 1 row, 7 columns

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2026-10-032026-10-01Shek BernardS600$1,734.94Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-01 and its public availability date is 2026-10-03. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC accession 0001242648-26-000045 ↗SEC accession 0001242648-26-000043 ↗SEC accession 0001242648-26-000042 ↗

Recent insider disclosures

Inspect all 50 displayed rows: Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

Scroll sideways to compare all columns. Select a heading to sort.

2026-10-032026-10-01Shek BernardS600$1,734.94Not reported
2026-09-212026-09-17Pokorny MichaelA458$0Not reported
2026-09-212026-09-17Visoso Luis FelipeA1,635$0Not reported
2026-09-212026-09-17Goeckeler DavidS2,778$1,575.58Not reported
2026-09-212026-09-17Goeckeler DavidS2,588$1,574.57Not reported
2026-09-212026-09-17Goeckeler DavidS306$1,573.15Not reported
2026-09-212026-09-17Goeckeler DavidS1,157$1,572.6Not reported
2026-09-212026-09-17Goeckeler DavidS4,558$1,571.21Not reported
2026-09-212026-09-17Goeckeler DavidS910$1,570.04Not reported
2026-09-212026-09-17Goeckeler DavidS9,604$1,569Not reported
2026-09-212026-09-17Goeckeler DavidS40$1,567.26Not reported
2026-09-212026-09-17Goeckeler DavidS165$1,587Not reported
2026-09-212026-09-17Goeckeler DavidS1,520$1,585.85Not reported
2026-09-212026-09-17Goeckeler DavidS1,080$1,583.8Not reported
2026-09-212026-09-17Goeckeler DavidS1,480$1,580.25Not reported
2026-09-212026-09-17Goeckeler DavidS640$1,579.41Not reported
2026-09-212026-09-17Goeckeler DavidS2,876$1,578.34Not reported
2026-09-212026-09-17Goeckeler DavidS4,139$1,576.82Not reported
2026-09-212026-09-17Goeckeler DavidA3,296$0Not reported
2026-09-212026-09-17Shek BernardA1,001$0Not reported
2026-09-212026-09-17Ilkbahar AlperA1,619$0Not reported
2026-09-162026-09-15Visoso Luis FelipeS1,000$1,568.83Not reported
2026-09-162026-09-14Goeckeler DavidS1,695$1,535.96Not reported
2026-09-162026-09-14Goeckeler DavidS700$1,535.12Not reported
2026-09-162026-09-14Goeckeler DavidS1,200$1,532.17Not reported
2026-09-162026-09-14Goeckeler DavidS359$1,529.36Not reported
2026-09-162026-09-14Goeckeler DavidS4,080$1,528.45Not reported
2026-09-162026-09-14Goeckeler DavidS2,280$1,526.45Not reported
2026-09-162026-09-14Goeckeler DavidS3,075$1,524.27Not reported
2026-09-162026-09-14Goeckeler DavidS181$1,522.87Not reported
2026-09-162026-09-14Goeckeler DavidS360$1,541.88Not reported
2026-09-162026-09-14Goeckeler DavidS864$1,540.78Not reported
2026-09-162026-09-14Goeckeler DavidS1,480$1,539.19Not reported
2026-09-162026-09-14Goeckeler DavidS3,200$1,537.68Not reported
2026-09-162026-09-14Goeckeler DavidS14,364$1,522.59Not reported
2026-09-092026-09-03Ilkbahar AlperS40$1,571.04Not reported
2026-09-092026-09-03Ilkbahar AlperS40$1,564.4Not reported
2026-09-092026-09-03Ilkbahar AlperS200$1,563.68Not reported
2026-09-092026-09-03Ilkbahar AlperS120$1,561.69Not reported
2026-09-092026-09-03Ilkbahar AlperS40$1,527.58Not reported
2026-09-092026-09-03Ilkbahar AlperS80$1,526.81Not reported
2026-09-092026-09-03Ilkbahar AlperS80$1,523.61Not reported
2026-09-092026-09-03Ilkbahar AlperS40$1,522.1Not reported
2026-09-092026-09-03Ilkbahar AlperS80$1,520.93Not reported
2026-09-092026-09-03Ilkbahar AlperS68$1,519.23Not reported
2026-09-092026-09-03Ilkbahar AlperS40$1,558.9Not reported
2026-09-092026-09-03Ilkbahar AlperS52$1,517.68Not reported
2026-09-092026-09-03Ilkbahar AlperS80$1,557.79Not reported
2026-09-092026-09-03Ilkbahar AlperS78$1,555.57Not reported
2026-09-092026-09-03Ilkbahar AlperS40$1,554.02Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Show the table · 7 rows, 3 columns

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Goeckeler David000171394136
Sayiner Necip000133851581
Ilkbahar Alper000205963037
Pokorny Michael00020583381
Shek Bernard00020601446
Suzuki Miyuki00018678521
Visoso Luis Felipe000181628925
Goeckeler David ↗Sayiner Necip ↗Ilkbahar Alper ↗Pokorny Michael ↗Shek Bernard ↗Suzuki Miyuki ↗Visoso Luis Felipe ↗

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

The source profile remains readable even when the issuer does not meet the company-strategy eligibility rules.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.